{"id":4870,"date":"2022-03-28T18:39:17","date_gmt":"2022-03-28T10:39:17","guid":{"rendered":"https:\/\/egonlin.com\/?p=4870"},"modified":"2022-04-11T19:05:48","modified_gmt":"2022-04-11T11:05:48","slug":"%e7%ac%ac%e4%b8%80%e7%af%87%ef%bc%9a%e7%bd%91%e7%bb%9c%e7%bc%96%e7%a8%8b","status":"publish","type":"post","link":"https:\/\/egonlin.com\/?p=4870","title":{"rendered":"\u7b2c\u4e00\u7bc7\uff1a\u7f51\u7edc\u7f16\u7a0b"},"content":{"rendered":"

\u7f51\u7edc\u7f16\u7a0b<\/h1>\n

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1\u3001\u4e92\u8054\u7f51\u7684\u672c\u8d28\u5c31\u662f\u4e00\u7cfb\u5217\u7684\u7f51\u7edc\u534f\u8bae<\/h3>\n

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\"\"<\/div><\/p>\n

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2\u3001OSI\u4e03\u5c42\u534f\u8bae<\/h3>\n

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3\u3001TCP\/IP\u4e94\u5c42\u6a21\u578b\u8bb2\u89e3<\/h3>\n

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1.\u7269\u7406\u5c42<\/h4>\n

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2.\u6570\u636e\u94fe\u8def\u5c42<\/h4>\n

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\u4ee5\u592a\u7f51\u534f\u8bae\uff1a<\/strong><\/p>\n

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\u2022 \u4e00\u7ec4\u7535\u4fe1\u53f7\u6784\u6210\u4e00\u4e2a\u6570\u636e\u5305\uff0c\u53eb\u505a\u2018\u5e27\u2019<\/p>\n

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head<\/th>\ndata<\/th>\n<\/tr>\n<\/thead>\n
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\u2022 \u6570\u636e\u7c7b\u578b\uff0c6\u4e2a\u5b57\u8282<\/p>\n

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*mac\u5730\u5740\uff1a*<\/em><\/strong><\/p>\n

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\u5e7f\u64ad\uff1a<\/strong><\/p>\n

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ethernet\u91c7\u7528\u6700\u539f\u59cb\u7684\u65b9\u5f0f\uff0c\u5e7f\u64ad\u7684\u65b9\u5f0f\u8fdb\u884c\u901a\u4fe1\uff0c\u5373\u8ba1\u7b97\u673a\u901a\u4fe1\u57fa\u672c\u9760\u543c<\/p>\n

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3.\u7f51\u7edc\u5c42<\/h4>\n

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\"\"<\/div><\/p>\n

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IP\u534f\u8bae\uff1a<\/strong><\/p>\n

\u2022 \u89c4\u5b9a\u7f51\u7edc\u5730\u5740\u7684\u534f\u8bae\u53ebip\u534f\u8bae\uff0c\u5b83\u5b9a\u4e49\u7684\u5730\u5740\u79f0\u4e4b\u4e3aip\u5730\u5740\uff0c\u5e7f\u6cdb\u91c7\u7528\u7684v4\u7248\u672c\u5373ipv4\uff0c\u5b83\u89c4\u5b9a\u7f51\u7edc\u5730\u5740\u753132\u4f4d2\u8fdb\u5236\u8868\u793a<\/p>\n

\u2022 \u8303\u56f40.0.0.0-255.255.255.255<\/p>\n

\u2022 \u4e00\u4e2aip\u5730\u5740\u901a\u5e38\u5199\u6210\u56db\u6bb5\u5341\u8fdb\u5236\u6570\uff0c\u4f8b\uff1a172.16.10.1<\/p>\n

IP\u5730\u5740\u5206\u6210\u4e24\u90e8\u5206\uff1a<\/strong><\/p>\n

\u2022 \u7f51\u7edc\u90e8\u5206\uff1a\u6807\u8bc6\u5b50\u7f51<\/p>\n

\u2022 \u4e3b\u673a\u90e8\u5206\uff1a\u6807\u8bc6\u4e3b\u673a<\/p>\n

\u6ce8\u610f\uff1a\u5355\u7eaf\u7684ip\u5730\u5740\u6bb5\u53ea\u662f\u6807\u8bc6\u4e86ip\u5730\u5740\u7684\u79cd\u7c7b\uff0c\u4ece\u7f51\u7edc\u90e8\u5206\u6216\u4e3b\u673a\u90e8\u5206\u90fd\u65e0\u6cd5\u8fa8\u8bc6\u4e00\u4e2aip\u6240\u5904\u7684\u5b50\u7f51<\/p>\n

\u4f8b\uff1a172.16.10.1\u4e0e172.16.10.2\u5e76\u4e0d\u80fd\u786e\u5b9a\u4e8c\u8005\u5904\u4e8e\u540c\u4e00\u5b50\u7f51<\/p>\n

\u5b50\u7f51\u63a9\u7801\uff1a<\/strong><\/p>\n

\u6240\u8c13\u201d\u5b50\u7f51\u63a9\u7801\u201d\uff0c\u5c31\u662f\u8868\u793a\u5b50\u7f51\u7edc\u7279\u5f81\u7684\u4e00\u4e2a\u53c2\u6570\u3002\u5b83\u5728\u5f62\u5f0f\u4e0a\u7b49\u540c\u4e8eIP\u5730\u5740\uff0c\u4e5f\u662f\u4e00\u4e2a32\u4f4d\u4e8c\u8fdb\u5236\u6570\u5b57\uff0c\u5b83\u7684\u7f51\u7edc\u90e8\u5206\u5168\u90e8\u4e3a1\uff0c\u4e3b\u673a\u90e8\u5206\u5168\u90e8\u4e3a0\u3002\u6bd4\u5982\uff0cIP\u5730\u5740172.16.10.1\uff0c\u5982\u679c\u5df2\u77e5\u7f51\u7edc\u90e8\u5206\u662f\u524d24\u4f4d\uff0c\u4e3b\u673a\u90e8\u5206\u662f\u540e8\u4f4d\uff0c\u90a3\u4e48\u5b50\u7f51\u7edc\u63a9\u7801\u5c31\u662f11111111.11111111.11111111.00000000\uff0c\u5199\u6210\u5341\u8fdb\u5236\u5c31\u662f255.255.255.0\u3002<\/p>\n

\u77e5\u9053\u201d\u5b50\u7f51\u63a9\u7801\u201d\uff0c\u6211\u4eec\u5c31\u80fd\u5224\u65ad\uff0c\u4efb\u610f\u4e24\u4e2aIP\u5730\u5740\u662f\u5426\u5904\u5728\u540c\u4e00\u4e2a\u5b50\u7f51\u7edc\u3002\u65b9\u6cd5\u662f\u5c06\u4e24\u4e2aIP\u5730\u5740\u4e0e\u5b50\u7f51\u63a9\u7801\u5206\u522b\u8fdb\u884cAND\u8fd0\u7b97\uff08\u4e24\u4e2a\u6570\u4f4d\u90fd\u4e3a1\uff0c\u8fd0\u7b97\u7ed3\u679c\u4e3a1\uff0c\u5426\u5219\u4e3a0\uff09\uff0c\u7136\u540e\u6bd4\u8f83\u7ed3\u679c\u662f\u5426\u76f8\u540c\uff0c\u5982\u679c\u662f\u7684\u8bdd\uff0c\u5c31\u8868\u660e\u5b83\u4eec\u5728\u540c\u4e00\u4e2a\u5b50\u7f51\u7edc\u4e2d\uff0c\u5426\u5219\u5c31\u4e0d\u662f\u3002<\/p>\n

\u6bd4\u5982\uff0c\u5df2\u77e5IP\u5730\u5740172.16.10.1\u548c172.16.10.2\u7684\u5b50\u7f51\u63a9\u7801\u90fd\u662f255.255.255.0\uff0c\u8bf7\u95ee\u5b83\u4eec\u662f\u5426\u5728\u540c\u4e00\u4e2a\u5b50\u7f51\u7edc\uff1f\u4e24\u8005\u4e0e\u5b50\u7f51\u63a9\u7801\u5206\u522b\u8fdb\u884cAND\u8fd0\u7b97\uff0c<\/p>\n

172.16.10.1\uff1a10101100.00010000.00001010.000000001<\/p>\n

255255.255.255.0:11111111.11111111.11111111.00000000<\/p>\n

AND\u8fd0\u7b97\u5f97\u7f51\u7edc\u5730\u5740\u7ed3\u679c\uff1a10101100.00010000.00001010.000000001->172.16.10.0<\/p>\n

172.16.10.2\uff1a10101100.00010000.00001010.000000010<\/p>\n

255255.255.255.0:11111111.11111111.11111111.00000000<\/p>\n

AND\u8fd0\u7b97\u5f97\u7f51\u7edc\u5730\u5740\u7ed3\u679c\uff1a10101100.00010000.00001010.000000001->172.16.10.0<\/p>\n

\u7ed3\u679c\u90fd\u662f172.16.10.0\uff0c\u56e0\u6b64\u5b83\u4eec\u5728\u540c\u4e00\u4e2a\u5b50\u7f51\u7edc\u3002<\/p>\n

\u603b\u7ed3\u4e00\u4e0b\uff0cIP\u534f\u8bae\u7684\u4f5c\u7528\u4e3b\u8981\u6709\u4e24\u4e2a\uff0c\u4e00\u4e2a\u662f\u4e3a\u6bcf\u4e00\u53f0\u8ba1\u7b97\u673a\u5206\u914dIP\u5730\u5740\uff0c\u53e6\u4e00\u4e2a\u662f\u786e\u5b9a\u54ea\u4e9b\u5730\u5740\u5728\u540c\u4e00\u4e2a\u5b50\u7f51\u7edc\u3002<\/p>\n

IP\u6570\u636e\u5305<\/strong><\/p>\n

IP\u6570\u636e\u5305\u4e5f\u5206\u4e3ahead\u548cdata\u90e8\u5206\uff0c\u65e0\u987b\u4e3aip\u5305\u5b9a\u4e49\u5355\u72ec\u7684\u680f\u4f4d\uff0c\u76f4\u63a5\u653e\u5165\u4ee5\u592a\u7f51\u5305\u7684data\u90e8\u5206<\/p>\n

head\uff1a\u957f\u5ea6\u4e3a20\u523060\u5b57\u8282<\/p>\n

data\uff1a\u6700\u957f\u4e3a65,515\u5b57\u8282\u3002<\/p>\n

\u800c\u4ee5\u592a\u7f51\u6570\u636e\u5305\u7684\u201d\u6570\u636e\u201d\u90e8\u5206\uff0c\u6700\u957f\u53ea\u67091500\u5b57\u8282\u3002\u56e0\u6b64\uff0c\u5982\u679cIP\u6570\u636e\u5305\u8d85\u8fc7\u4e861500\u5b57\u8282\uff0c\u5b83\u5c31\u9700\u8981\u5206\u5272\u6210\u51e0\u4e2a\u4ee5\u592a\u7f51\u6570\u636e\u5305\uff0c\u5206\u5f00\u53d1\u9001\u4e86\u3002<\/p>\n\n\n\n\n\n
\u4ee5\u592a\u7f51\u5934<\/th>\nip \u5934<\/th>\nip\u6570\u636e<\/th>\n<\/tr>\n<\/thead>\n
<\/td>\n<\/td>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

ARP\u534f\u8bae<\/strong><\/p>\n

arp\u534f\u8bae\u7531\u6765\uff1a\u8ba1\u7b97\u673a\u901a\u4fe1\u57fa\u672c\u9760\u543c\uff0c\u5373\u5e7f\u64ad\u7684\u65b9\u5f0f\uff0c\u6240\u6709\u4e0a\u5c42\u7684\u5305\u5230\u6700\u540e\u90fd\u8981\u5c01\u88c5\u4e0a\u4ee5\u592a\u7f51\u5934\uff0c\u7136\u540e\u901a\u8fc7\u4ee5\u592a\u7f51\u534f\u8bae\u53d1\u9001\uff0c\u5728\u8c08\u53ca\u4ee5\u592a\u7f51\u534f\u8bae\u65f6\u5019\uff0c\u6211\u95e8\u4e86\u89e3\u5230<\/p>\n

\u901a\u4fe1\u662f\u57fa\u4e8emac\u7684\u5e7f\u64ad\u65b9\u5f0f\u5b9e\u73b0\uff0c\u8ba1\u7b97\u673a\u5728\u53d1\u5305\u65f6\uff0c\u83b7\u53d6\u81ea\u8eab\u7684mac\u662f\u5bb9\u6613\u7684\uff0c\u5982\u4f55\u83b7\u53d6\u76ee\u6807\u4e3b\u673a\u7684mac\uff0c\u5c31\u9700\u8981\u901a\u8fc7arp\u534f\u8bae<\/p>\n

arp\u534f\u8bae\u529f\u80fd\uff1a\u5e7f\u64ad\u7684\u65b9\u5f0f\u53d1\u9001\u6570\u636e\u5305\uff0c\u83b7\u53d6\u76ee\u6807\u4e3b\u673a\u7684mac\u5730\u5740<\/p>\n

\u534f\u8bae\u5de5\u4f5c\u65b9\u5f0f\uff1a\u6bcf\u53f0\u4e3b\u673aip\u90fd\u662f\u5df2\u77e5\u7684<\/p>\n

\u4f8b\u5982\uff1a\u4e3b\u673a172.16.10.10\/24\u8bbf\u95ee172.16.10.11\/24<\/p>\n

\u4e00\uff1a\u9996\u5148\u901a\u8fc7ip\u5730\u5740\u548c\u5b50\u7f51\u63a9\u7801\u533a\u5206\u51fa\u81ea\u5df1\u6240\u5904\u7684\u5b50\u7f51<\/p>\n\n\n\n\n\n\n
\u573a\u666f<\/th>\n\u6570\u636e\u5305\u5730\u5740<\/th>\n<\/tr>\n<\/thead>\n
\u540c\u4e00\u5b50\u7f51<\/td>\n\u76ee\u6807\u4e3b\u673amac\uff0c\u76ee\u6807\u4e3b\u673aip<\/td>\n<\/tr>\n
\u4e0d\u540c\u5b50\u7f51<\/td>\n\u7f51\u5173mac\uff0c\u76ee\u6807\u4e3b\u673aip<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\u4e8c\uff1a\u5206\u6790172.16.10.10\/24\u4e0e172.16.10.11\/24\u5904\u4e8e\u540c\u4e00\u7f51\u7edc(\u5982\u679c\u4e0d\u662f\u540c\u4e00\u7f51\u7edc\uff0c\u90a3\u4e48\u4e0b\u8868\u4e2d\u76ee\u6807IP\u4e3a172.16.10.1,\u901a\u8fc7arp\u83b7\u53d6\u7684\u662f\u7f51\u5173\u7684mac)<\/p>\n\n\n\n\n\n
<\/th>\n\u6e90mac<\/th>\n\u76ee\u6807mac<\/th>\n\u6e90ip<\/th>\n\u76ee\u6807ip<\/th>\n\u6570\u636e\u90e8\u5206<\/th>\n<\/tr>\n<\/thead>\n
\u53d1\u9001\u7aef\u4e3b\u673a<\/td>\n\u53d1\u9001\u7aefmac<\/td>\nFF:FF:FF:FF:FF:FF<\/td>\n172.16.10.10\/24<\/td>\n172.16.10.11\/24<\/td>\n\u6570\u636e<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\u4e09\uff1a\u8fd9\u4e2a\u5305\u4f1a\u4ee5\u5e7f\u64ad\u7684\u65b9\u5f0f\u5728\u53d1\u9001\u7aef\u6240\u5904\u7684\u81ea\u7f51\u5185\u4f20\u8f93\uff0c\u6240\u6709\u4e3b\u673a\u63a5\u6536\u540e\u62c6\u5f00\u5305\uff0c\u53d1\u73b0\u76ee\u6807IP\u4e3a\u81ea\u5df1\u7684\uff0c\u5c31\u54cd\u5e94\uff0c\u8fd4\u56de\u81ea\u5df1\u7684mac<\/p>\n

4.\u4f20\u8f93\u5c42<\/h4>\n

\u4f20\u8f93\u5c42\u7684\u7531\u6765\uff1a\u7f51\u7edc\u5c42\u7684IP\u5e2e\u6211\u4eec\u533a\u5206\u5b50\u7f51\uff0c\u4ee5\u592a\u7f51\u5c42\u7684mac\u5e2e\u6211\u4eec\u627e\u5230\u4e3b\u673a\uff0c\u7136\u540e\u5927\u5bb6\u4f7f\u7528\u7684\u90fd\u662f\u5e94\u7528\u7a0b\u5e8f\uff0c\u4f60\u7684\u7535\u8111\u4e0a\u53ef\u80fd\u540c\u65f6\u5f00\u542fqq\uff0c\u66b4\u98ce\u5f71\u97f3\uff0c\u7b49\u591a\u4e2a\u5e94\u7528\u7a0b\u5e8f\uff0c<\/p>\n

\u90a3\u4e48\u6211\u4eec\u901a\u8fc7IP\u548cmac\u627e\u5230\u4e86\u4e00\u53f0\u7279\u5b9a\u7684\u4e3b\u673a\uff0c\u5982\u4f55\u6807\u8bc6\u8fd9\u53f0\u4e3b\u673a\u4e0a\u7684\u5e94\u7528\u7a0b\u5e8f\uff0c\u7b54\u6848\u5c31\u662f\u7aef\u53e3\uff0c\u7aef\u53e3\u5373\u5e94\u7528\u7a0b\u5e8f\u4e0e\u7f51\u5361\u5173\u8054\u7684\u7f16\u53f7\u3002<\/p>\n

\u4f20\u8f93\u5c42\u529f\u80fd\uff1a\u5efa\u7acb\u7aef\u53e3\u5230\u7aef\u53e3\u7684\u901a\u4fe1<\/p>\n

\u8865\u5145\uff1a\u7aef\u53e3\u8303\u56f40-65535\uff0c0-1023\u4e3a\u7cfb\u7edf\u5360\u7528\u7aef\u53e3<\/p>\n

*tcp\u534f\u8bae\uff1a*<\/em><\/strong><\/p>\n

\u53ef\u9760\u4f20\u8f93\uff0cTCP\u6570\u636e\u5305\u6ca1\u6709\u957f\u5ea6\u9650\u5236\uff0c\u7406\u8bba\u4e0a\u53ef\u4ee5\u65e0\u9650\u957f\uff0c\u4f46\u662f\u4e3a\u4e86\u4fdd\u8bc1\u7f51\u7edc\u7684\u6548\u7387\uff0c\u901a\u5e38TCP\u6570\u636e\u5305\u7684\u957f\u5ea6\u4e0d\u4f1a\u8d85\u8fc7IP\u6570\u636e\u5305\u7684\u957f\u5ea6\uff0c\u4ee5\u786e\u4fdd\u5355\u4e2aTCP\u6570\u636e\u5305\u4e0d\u5fc5\u518d\u5206\u5272\u3002<\/p>\n\n\n\n\n\n
\u4ee5\u592a\u7f51\u5934<\/th>\nip \u5934<\/th>\ntcp\u5934<\/th>\n\u6570\u636e<\/th>\n<\/tr>\n<\/thead>\n
<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

*udp\u534f\u8bae\uff1a*<\/em><\/strong><\/p>\n

\u4e0d\u53ef\u9760\u4f20\u8f93\uff0c\u201d\u62a5\u5934\u201d\u90e8\u5206\u4e00\u5171\u53ea\u67098\u4e2a\u5b57\u8282\uff0c\u603b\u957f\u5ea6\u4e0d\u8d85\u8fc765,535\u5b57\u8282\uff0c\u6b63\u597d\u653e\u8fdb\u4e00\u4e2aIP\u6570\u636e\u5305\u3002<\/p>\n\n\n\n\n\n
\u4ee5\u592a\u7f51\u5934<\/th>\nip\u5934<\/th>\nudp\u5934<\/th>\n\u6570\u636e<\/th>\n<\/tr>\n<\/thead>\n
<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

*tcp\u62a5\u6587\uff1a*<\/em><\/strong><\/p>\n

\"\"<\/div><\/p>\n

*tcp\u4e09\u6b21\u63e1\u624b\u548c\u56db\u6b21\u6325\u624b\uff1a*<\/em><\/strong><\/p>\n

\"\"<\/div><\/p>\n

5.\u5e94\u7528\u5c42<\/h4>\n

\u5e94\u7528\u5c42\u7531\u6765\uff1a\u7528\u6237\u4f7f\u7528\u7684\u90fd\u662f\u5e94\u7528\u7a0b\u5e8f\uff0c\u5747\u5de5\u4f5c\u4e8e\u5e94\u7528\u5c42\uff0c\u4e92\u8054\u7f51\u662f\u5f00\u53d1\u7684\uff0c\u5927\u5bb6\u90fd\u53ef\u4ee5\u5f00\u53d1\u81ea\u5df1\u7684\u5e94\u7528\u7a0b\u5e8f\uff0c\u6570\u636e\u591a\u79cd\u591a\u6837\uff0c\u5fc5\u987b\u89c4\u5b9a\u597d\u6570\u636e\u7684\u7ec4\u7ec7\u5f62\u5f0f<\/p>\n

\u5e94\u7528\u5c42\u529f\u80fd\uff1a\u89c4\u5b9a\u5e94\u7528\u7a0b\u5e8f\u7684\u6570\u636e\u683c\u5f0f\u3002<\/p>\n

\u4f8b\uff1aTCP\u534f\u8bae\u53ef\u4ee5\u4e3a\u5404\u79cd\u5404\u6837\u7684\u7a0b\u5e8f\u4f20\u9012\u6570\u636e\uff0c\u6bd4\u5982\uff1aEmail\u3001WWW\u3001FTP\u7b49\u7b49\u3002\u90a3\u4e48\uff0c\u5fc5\u987b\u6709\u4e0d\u540c\u534f\u8bae\u89c4\u5b9a\u7535\u5b50\u90ae\u4ef6\u3001\u7f51\u9875\u3001FTP\u6570\u636e\u7684\u683c\u5f0f\uff0c\u8fd9\u4e9b\u5e94\u7528\u7a0b\u5e8f\u534f\u8bae\u5c31\u6784\u6210\u4e86\u201d\u5e94\u7528\u5c42\u201d\u3002<\/p>\n

\"\"<\/div><\/p>\n

\u4e09\u3001\u4e92\u8054\u7f51\u5f00\u53d1\u67b6\u6784<\/h2>\n

\u786c\u4ef6C\/S\u67b6\u6784(\u6253\u5370\u673a)<\/p>\n

\u8f6f\u4ef6C\/S\u67b6\u6784<\/p>\n

\u3000\u3000\u4e92\u8054\u7f51\u4e2d\u5904\u5904\u662fC\/S\u67b6\u6784<\/p>\n

\u3000\u3000\u5982\u67d0\u7f51\u7ad9\u662f\u670d\u52a1\u7aef\uff0c\u4f60\u7684\u6d4f\u89c8\u5668\u662f\u5ba2\u6237\u7aef\uff08B\/S\u67b6\u6784\u4e5f\u662fC\/S\u67b6\u6784\u7684\u4e00\u79cd\uff09<\/p>\n

\u3000\u3000\u817e\u8baf\u4f5c\u4e3a\u670d\u52a1\u7aef\u4e3a\u4f60\u63d0\u4f9b\u89c6\u9891\uff0c\u4f60\u5f97\u4e0b\u4e2a\u817e\u8baf\u89c6\u9891\u5ba2\u6237\u7aef\u624d\u80fd\u770b\u5b83\u7684\u89c6\u9891\uff09<\/p>\n

C\/S\u67b6\u6784\u4e0esocket\u7684\u5173\u7cfb\uff1a<\/p>\n

\u6211\u4eec\u5b66\u4e60socket\u5c31\u662f\u4e3a\u4e86\u5b8c\u6210C\/S\u67b6\u6784\u7684\u5f00\u53d1<\/p>\n

\u56db\u3001\u4e3a\u4f55\u5b66\u4e60socket\u4e00\u5b9a\u8981\u5148\u5b66\u4e60\u4e92\u8054\u7f51\u534f\u8bae<\/h2>\n

1.\u9996\u5148\uff1a\u672c\u8282\u8bfe\u7a0b\u7684\u76ee\u6807\u5c31\u662f\u6559\u4f1a\u4f60\u5982\u4f55\u57fa\u4e8esocket\u7f16\u7a0b\uff0c\u6765\u5f00\u53d1\u4e00\u6b3e\u81ea\u5df1\u7684C\/S\u67b6\u6784\u8f6f\u4ef6<\/strong><\/p>\n

2.\u5176\u6b21\uff1aC\/S\u67b6\u6784\u7684\u8f6f\u4ef6\uff08\u8f6f\u4ef6\u5c5e\u4e8e\u5e94\u7528\u5c42\uff09\u662f\u57fa\u4e8e\u7f51\u7edc\u8fdb\u884c\u901a\u4fe1\u7684<\/strong><\/p>\n

3.\u7136\u540e\uff1a\u7f51\u7edc\u7684\u6838\u5fc3\u5373\u4e00\u5806\u534f\u8bae\uff0c\u534f\u8bae\u5373\u6807\u51c6\uff0c\u4f60\u60f3\u5f00\u53d1\u4e00\u6b3e\u57fa\u4e8e\u7f51\u7edc\u901a\u4fe1\u7684\u8f6f\u4ef6\uff0c\u5c31\u5fc5\u987b\u9075\u5faa\u8fd9\u4e9b\u6807\u51c6\u3002<\/strong><\/p>\n

4.\u6700\u540e\uff1a\u5c31\u8ba9\u6211\u4eec\u4ece\u8fd9\u4e9b\u6807\u51c6\u5f00\u59cb\u7814\u7a76\uff0c\u5f00\u542f\u6211\u4eec\u7684socket\u7f16\u7a0b\u4e4b\u65c5<\/strong><\/p>\n

\"\"<\/div><\/p>\n

\u4e94\u3001socket\u5c42<\/h2>\n

Socket\u5b83\u5230\u5e95\u5728\u54ea\u91cc\u5462\uff1f\u8fd8\u662f\u7528\u56fe\u6765\u8bf4\u8bdd\uff0c\u4e00\u76ee\u4e86\u7136\u3002<\/p>\n

\"\"<\/div><\/p>\n

1\u3001socket\u662f\u4ec0\u4e48<\/h3>\n

Socket\u662f\u5e94\u7528\u5c42\u4e0eTCP\/IP\u534f\u8bae\u65cf\u901a\u4fe1\u7684\u4e2d\u95f4\u8f6f\u4ef6\u62bd\u8c61\u5c42\uff0c\u5b83\u662f\u4e00\u7ec4\u63a5\u53e3\u3002\u5728\u8bbe\u8ba1\u6a21\u5f0f\u4e2d\uff0cSocket\u5176\u5b9e\u5c31\u662f\u4e00\u4e2a\u95e8\u9762\u6a21\u5f0f\uff0c\u5b83\u628a\u590d\u6742\u7684TCP\/IP\u534f\u8bae\u65cf\u9690\u85cf\u5728Socket\u63a5\u53e3\u540e\u9762\uff0c\u5bf9\u7528\u6237\u6765\u8bf4\uff0c\u4e00\u7ec4\u7b80\u5355\u7684\u63a5\u53e3\u5c31\u662f\u5168\u90e8\uff0c\u8ba9Socket\u53bb\u7ec4\u7ec7\u6570\u636e\uff0c\u4ee5\u7b26\u5408\u6307\u5b9a\u7684\u534f\u8bae\u3002<\/p>\n

\u6240\u4ee5\uff0c\u6211\u4eec\u65e0\u9700\u6df1\u5165\u7406\u89e3tcp\/udp\u534f\u8bae\uff0csocket\u5df2\u7ecf\u4e3a\u6211\u4eec\u5c01\u88c5\u597d\u4e86\uff0c\u6211\u4eec\u53ea\u9700\u8981\u9075\u5faasocket\u7684\u89c4\u5b9a\u53bb\u7f16\u7a0b\uff0c\u5199\u51fa\u7684\u7a0b\u5e8f\u81ea\u7136\u5c31\u662f\u9075\u5faatcp\/udp\u6807\u51c6\u7684\u3002<\/p>\n

\u4e5f\u6709\u4eba\u5c06socket\u8bf4\u6210ip+port\uff0cip\u662f\u7528\u6765\u6807\u8bc6\u4e92\u8054\u7f51\u4e2d\u7684\u4e00\u53f0\u4e3b\u673a\u7684\u4f4d\u7f6e\uff0c\u800cport\u662f\u7528\u6765\u6807\u8bc6\u8fd9\u53f0\u673a\u5668\u4e0a\u7684\u4e00\u4e2a\u5e94\u7528\u7a0b\u5e8f\uff0cip\u5730\u5740\u662f\u914d\u7f6e\u5230\u7f51\u5361\u4e0a\u7684\uff0c\u800cport\u662f\u5e94\u7528\u7a0b\u5e8f\u5f00\u542f\u7684\uff0cip\u4e0eport\u7684\u7ed1\u5b9a\u5c31\u6807\u8bc6\u4e86\u4e92\u8054\u7f51\u4e2d\u72ec\u4e00\u65e0\u4e8c\u7684\u4e00\u4e2a\u5e94\u7528\u7a0b\u5e8f*
\n*
\n<\/em>\u800c\u7a0b\u5e8f\u7684pid\u662f\u540c\u4e00\u53f0\u673a\u5668\u4e0a\u4e0d\u540c\u8fdb\u7a0b\u6216\u8005\u7ebf\u7a0b\u7684\u6807\u8bc6<\/p>\n

2\u3001\u5957\u63a5\u5b57\u53d1\u5c55\u53f2\u53ca\u5206\u7c7b<\/h3>\n

\u5957\u63a5\u5b57\u8d77\u6e90\u4e8e 20 \u4e16\u7eaa 70 \u5e74\u4ee3\u52a0\u5229\u798f\u5c3c\u4e9a\u5927\u5b66\u4f2f\u514b\u5229\u5206\u6821\u7248\u672c\u7684 Unix,\u5373\u4eba\u4eec\u6240\u8bf4\u7684 BSD Unix\u3002 \u56e0\u6b64,\u6709\u65f6\u4eba\u4eec\u4e5f\u628a\u5957\u63a5\u5b57\u79f0\u4e3a\u201c\u4f2f\u514b\u5229\u5957\u63a5\u5b57\u201d\u6216\u201cBSD \u5957\u63a5\u5b57\u201d\u3002\u4e00\u5f00\u59cb,\u5957\u63a5\u5b57\u88ab\u8bbe\u8ba1\u7528\u5728\u540c \u4e00\u53f0\u4e3b\u673a\u4e0a\u591a\u4e2a\u5e94\u7528\u7a0b\u5e8f\u4e4b\u95f4\u7684\u901a\u8baf\u3002\u8fd9\u4e5f\u88ab\u79f0\u8fdb\u7a0b\u95f4\u901a\u8baf,\u6216 IPC\u3002\u5957\u63a5\u5b57\u6709\u4e24\u79cd\uff08\u6216\u8005\u79f0\u4e3a\u6709\u4e24\u4e2a\u79cd\u65cf\uff09,\u5206\u522b\u662f\u57fa\u4e8e\u6587\u4ef6\u578b\u7684\u548c\u57fa\u4e8e\u7f51\u7edc\u578b\u7684\u3002<\/p>\n

*\u57fa\u4e8e\u6587\u4ef6\u7c7b\u578b\u7684\u5957\u63a5\u5b57\u5bb6\u65cf*\\<\/strong><\/strong><\/p>\n

\u5957\u63a5\u5b57\u5bb6\u65cf\u7684\u540d\u5b57\uff1aAF_UNIX<\/p>\n

unix\u4e00\u5207\u7686\u6587\u4ef6\uff0c\u57fa\u4e8e\u6587\u4ef6\u7684\u5957\u63a5\u5b57\u8c03\u7528\u7684\u5c31\u662f\u5e95\u5c42\u7684\u6587\u4ef6\u7cfb\u7edf\u6765\u53d6\u6570\u636e\uff0c\u4e24\u4e2a\u5957\u63a5\u5b57\u8fdb\u7a0b\u8fd0\u884c\u5728\u540c\u4e00\u673a\u5668\uff0c\u53ef\u4ee5\u901a\u8fc7\u8bbf\u95ee\u540c\u4e00\u4e2a\u6587\u4ef6\u7cfb\u7edf\u95f4\u63a5\u5b8c\u6210\u901a\u4fe1<\/p>\n

*\u57fa\u4e8e\u7f51\u7edc\u7c7b\u578b\u7684\u5957\u63a5\u5b57\u5bb6\u65cf*\\<\/strong><\/strong><\/p>\n

\u5957\u63a5\u5b57\u5bb6\u65cf\u7684\u540d\u5b57\uff1aAF_INET<\/p>\n

(\u8fd8\u6709AF_INET6\u88ab\u7528\u4e8eipv6\uff0c\u8fd8\u6709\u4e00\u4e9b\u5176\u4ed6\u7684\u5730\u5740\u5bb6\u65cf\uff0c\u4e0d\u8fc7\uff0c\u4ed6\u4eec\u8981\u4e48\u662f\u53ea\u7528\u4e8e\u67d0\u4e2a\u5e73\u53f0\uff0c\u8981\u4e48\u5c31\u662f\u5df2\u7ecf\u88ab\u5e9f\u5f03\uff0c\u6216\u8005\u662f\u5f88\u5c11\u88ab\u4f7f\u7528\uff0c\u6216\u8005\u662f\u6839\u672c\u6ca1\u6709\u5b9e\u73b0\uff0c\u6240\u6709\u5730\u5740\u5bb6\u65cf\u4e2d\uff0cAF_INET\u662f\u4f7f\u7528\u6700\u5e7f\u6cdb\u7684\u4e00\u4e2a\uff0cpython\u652f\u6301\u5f88\u591a\u79cd\u5730\u5740\u5bb6\u65cf\uff0c\u4f46\u662f\u7531\u4e8e\u6211\u4eec\u53ea\u5173\u5fc3\u7f51\u7edc\u7f16\u7a0b\uff0c\u6240\u4ee5\u5927\u90e8\u5206\u65f6\u5019\u6211\u4e48\u53ea\u4f7f\u7528AF_INET)<\/p>\n

3\u3001\u5957\u63a5\u5b57\u5de5\u4f5c\u6d41\u7a0b<\/h3>\n

\u4e00\u4e2a\u751f\u6d3b\u4e2d\u7684\u573a\u666f\u3002\u4f60\u8981\u6253\u7535\u8bdd\u7ed9\u4e00\u4e2a\u670b\u53cb\uff0c\u5148\u62e8\u53f7\uff0c\u670b\u53cb\u542c\u5230\u7535\u8bdd\u94c3\u58f0\u540e\u63d0\u8d77\u7535\u8bdd\uff0c\u8fd9\u65f6\u4f60\u548c\u4f60\u7684\u670b\u53cb\u5c31\u5efa\u7acb\u8d77\u4e86\u8fde\u63a5\uff0c\u5c31\u53ef\u4ee5\u8bb2\u8bdd\u4e86\u3002\u7b49\u4ea4\u6d41\u7ed3\u675f\uff0c\u6302\u65ad\u7535\u8bdd\u7ed3\u675f\u6b64\u6b21\u4ea4\u8c08\u3002 \u751f\u6d3b\u4e2d\u7684\u573a\u666f\u5c31\u89e3\u91ca\u4e86\u8fd9\u5de5\u4f5c\u539f\u7406\u3002<\/p>\n

\"\"<\/div><\/p>\n

\u5148\u4ece\u670d\u52a1\u5668\u7aef\u8bf4\u8d77\u3002\u670d\u52a1\u5668\u7aef\u5148\u521d\u59cb\u5316Socket\uff0c\u7136\u540e\u4e0e\u7aef\u53e3\u7ed1\u5b9a(bind)\uff0c\u5bf9\u7aef\u53e3\u8fdb\u884c\u76d1\u542c(listen)\uff0c\u8c03\u7528accept\u963b\u585e\uff0c\u7b49\u5f85\u5ba2\u6237\u7aef\u8fde\u63a5\u3002\u5728\u8fd9\u65f6\u5982\u679c\u6709\u4e2a\u5ba2\u6237\u7aef\u521d\u59cb\u5316\u4e00\u4e2aSocket\uff0c\u7136\u540e\u8fde\u63a5\u670d\u52a1\u5668(connect)\uff0c\u5982\u679c\u8fde\u63a5\u6210\u529f\uff0c\u8fd9\u65f6\u5ba2\u6237\u7aef\u4e0e\u670d\u52a1\u5668\u7aef\u7684\u8fde\u63a5\u5c31\u5efa\u7acb\u4e86\u3002\u5ba2\u6237\u7aef\u53d1\u9001\u6570\u636e\u8bf7\u6c42\uff0c\u670d\u52a1\u5668\u7aef\u63a5\u6536\u8bf7\u6c42\u5e76\u5904\u7406\u8bf7\u6c42\uff0c\u7136\u540e\u628a\u56de\u5e94\u6570\u636e\u53d1\u9001\u7ed9\u5ba2\u6237\u7aef\uff0c\u5ba2\u6237\u7aef\u8bfb\u53d6\u6570\u636e\uff0c\u6700\u540e\u5173\u95ed\u8fde\u63a5\uff0c\u4e00\u6b21\u4ea4\u4e92\u7ed3\u675f<\/p>\n

socket()\u6a21\u5757\u51fd\u6570\u7528\u6cd5<\/p>\n

1 import socket\n 2 socket.socket(socket_family,socket_type,protocal=0)\n 3 socket_family \u53ef\u4ee5\u662f AF_UNIX \u6216 AF_INET\u3002socket_type \u53ef\u4ee5\u662f SOCK_STREAM \u6216 SOCK_DGRAM\u3002protocol \u4e00\u822c\u4e0d\u586b,\u9ed8\u8ba4\u503c\u4e3a 0\u3002\n 4 \n 5 \u83b7\u53d6tcp\/ip\u5957\u63a5\u5b57\n 6 tcpSock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)\n 7 \n 8 \u83b7\u53d6udp\/ip\u5957\u63a5\u5b57\n 9 udpSock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)\n10 \n11 \u7531\u4e8e socket \u6a21\u5757\u4e2d\u6709\u592a\u591a\u7684\u5c5e\u6027\u3002\u6211\u4eec\u5728\u8fd9\u91cc\u7834\u4f8b\u4f7f\u7528\u4e86'from module import *'\u8bed\u53e5\u3002\u4f7f\u7528 'from socket import *',\u6211\u4eec\u5c31\u628a socket \u6a21\u5757\u91cc\u7684\u6240\u6709\u5c5e\u6027\u90fd\u5e26\u5230\u6211\u4eec\u7684\u547d\u540d\u7a7a\u95f4\u91cc\u4e86,\u8fd9\u6837\u80fd \u5927\u5e45\u51cf\u77ed\u6211\u4eec\u7684\u4ee3\u7801\u3002\n12 \u4f8b\u5982tcpSock = socket(AF_INET, SOCK_STREAM<\/code><\/pre>\n
*<\/em>\u670d\u52a1\u7aef\u5957\u63a5\u5b57\u51fd\u6570*\\<\/em><\/strong> s.bind() \u7ed1\u5b9a(\u4e3b\u673a,\u7aef\u53e3\u53f7)\u5230\u5957\u63a5\u5b57 s.listen() \u5f00\u59cbTCP\u76d1\u542c s.accept() \u88ab\u52a8\u63a5\u53d7TCP\u5ba2\u6237\u7684\u8fde\u63a5,(\u963b\u585e\u5f0f)\u7b49\u5f85\u8fde\u63a5\u7684\u5230\u6765<\/p>\n
*<\/em>\u5ba2\u6237\u7aef\u5957\u63a5\u5b57\u51fd\u6570*\\<\/em><\/strong> s.connect() \u4e3b\u52a8\u521d\u59cb\u5316TCP\u670d\u52a1\u5668\u8fde\u63a5 s.connect_ex() connect()\u51fd\u6570\u7684\u6269\u5c55\u7248\u672c,\u51fa\u9519\u65f6\u8fd4\u56de\u51fa\u9519\u7801,\u800c\u4e0d\u662f\u629b\u51fa\u5f02\u5e38<\/p>\n
*<\/em>\u516c\u5171\u7528\u9014\u7684\u5957\u63a5\u5b57\u51fd\u6570*\\<\/em><\/strong> s.recv() \u63a5\u6536TCP\u6570\u636e s.send() \u53d1\u9001TCP\u6570\u636e(send\u5728\u5f85\u53d1\u9001\u6570\u636e\u91cf\u5927\u4e8e\u5df1\u7aef\u7f13\u5b58\u533a\u5269\u4f59\u7a7a\u95f4\u65f6,\u6570\u636e\u4e22\u5931,\u4e0d\u4f1a\u53d1\u5b8c) s.sendall() \u53d1\u9001\u5b8c\u6574\u7684TCP\u6570\u636e(\u672c\u8d28\u5c31\u662f\u5faa\u73af\u8c03\u7528send,sendall\u5728\u5f85\u53d1\u9001\u6570\u636e\u91cf\u5927\u4e8e\u5df1\u7aef\u7f13\u5b58\u533a\u5269\u4f59\u7a7a\u95f4\u65f6,\u6570\u636e\u4e0d\u4e22\u5931,\u5faa\u73af\u8c03\u7528send\u76f4\u5230\u53d1\u5b8c) s.recvfrom() \u63a5\u6536UDP\u6570\u636e s.sendto() \u53d1\u9001UDP\u6570\u636e s.getpeername() \u8fde\u63a5\u5230\u5f53\u524d\u5957\u63a5\u5b57\u7684\u8fdc\u7aef\u7684\u5730\u5740 s.getsockname() \u5f53\u524d\u5957\u63a5\u5b57\u7684\u5730\u5740 s.getsockopt() \u8fd4\u56de\u6307\u5b9a\u5957\u63a5\u5b57\u7684\u53c2\u6570 s.setsockopt() \u8bbe\u7f6e\u6307\u5b9a\u5957\u63a5\u5b57\u7684\u53c2\u6570 s.close() \u5173\u95ed\u5957\u63a5\u5b57<\/p>\n
*<\/em>\u9762\u5411\u9501\u7684\u5957\u63a5\u5b57\u65b9\u6cd5*\\<\/em><\/strong> s.setblocking() \u8bbe\u7f6e\u5957\u63a5\u5b57\u7684\u963b\u585e\u4e0e\u975e\u963b\u585e\u6a21\u5f0f s.settimeout() \u8bbe\u7f6e\u963b\u585e\u5957\u63a5\u5b57\u64cd\u4f5c\u7684\u8d85\u65f6\u65f6\u95f4 s.gettimeout() \u5f97\u5230\u963b\u585e\u5957\u63a5\u5b57\u64cd\u4f5c\u7684\u8d85\u65f6\u65f6\u95f4<\/p>\n
*<\/em>\u9762\u5411\u6587\u4ef6\u7684\u5957\u63a5\u5b57\u7684\u51fd\u6570*\\<\/em><\/strong> s.fileno() \u5957\u63a5\u5b57\u7684\u6587\u4ef6\u63cf\u8ff0\u7b26 s.makefile() \u521b\u5efa\u4e00\u4e2a\u4e0e\u8be5\u5957\u63a5\u5b57\u76f8\u5173\u7684\u6587\u4ef6<\/p>\n
4\u3001\u57fa\u4e8eTCP\u7684\u5957\u63a5\u5b57<\/h3>\n
tcp\u662f\u57fa\u4e8e\u94fe\u63a5\u7684\uff0c\u5fc5\u987b\u5148\u542f\u52a8\u670d\u52a1\u7aef\uff0c\u7136\u540e\u518d\u542f\u52a8\u5ba2\u6237\u7aef\u53bb\u94fe\u63a5\u670d\u52a1\u7aef<\/p>\n
tcp\u670d\u52a1\u7aef<\/p>\n
1 ss = socket() #\u521b\u5efa\u670d\u52a1\u5668\u5957\u63a5\u5b57\n2 ss.bind()      #\u628a\u5730\u5740\u7ed1\u5b9a\u5230\u5957\u63a5\u5b57\n3 ss.listen()      #\u76d1\u542c\u94fe\u63a5\n4 inf_loop:      #\u670d\u52a1\u5668\u65e0\u9650\u5faa\u73af\n5     cs = ss.accept() #\u63a5\u53d7\u5ba2\u6237\u7aef\u94fe\u63a5\n6     comm_loop:         #\u901a\u8baf\u5faa\u73af\n7         cs.recv()\/cs.send() #\u5bf9\u8bdd(\u63a5\u6536\u4e0e\u53d1\u9001)\n8     cs.close()    #\u5173\u95ed\u5ba2\u6237\u7aef\u5957\u63a5\u5b57\n9 ss.close()        #\u5173\u95ed\u670d\u52a1\u5668\u5957\u63a5\u5b57(\u53ef\u9009)<\/code><\/pre>\n
tcp\u5ba2\u6237\u7aef<\/p>\n
1 cs = socket()    # \u521b\u5efa\u5ba2\u6237\u5957\u63a5\u5b57\n2 cs.connect()    # \u5c1d\u8bd5\u8fde\u63a5\u670d\u52a1\u5668\n3 comm_loop:        # \u901a\u8baf\u5faa\u73af\n4     cs.send()\/cs.recv()    # \u5bf9\u8bdd(\u53d1\u9001\/\u63a5\u6536)\n5 cs.close()            # \u5173\u95ed\u5ba2\u6237\u5957\u63a5\u5b57<\/code><\/pre>\n
socket\u901a\u4fe1\u6d41\u7a0b\u4e0e\u6253\u7535\u8bdd\u6d41\u7a0b\u7c7b\u4f3c\uff0c\u6211\u4eec\u5c31\u4ee5\u6253\u7535\u8bdd\u4e3a\u4f8b\u6765\u5b9e\u73b0\u4e00\u4e2alow\u7248\u7684\u5957\u63a5\u5b57\u901a\u4fe1<\/p>\n
\u670d\u52a1\u7aef\uff1a<\/p>\n
#_*_coding:utf-8_*_\n__author__ = 'Linhaifeng'\nimport socket\nip_port=('127.0.0.1',9000)  #\u7535\u8bdd\u5361\nBUFSIZE=1024                #\u6536\u53d1\u6d88\u606f\u7684\u5c3a\u5bf8\ns=socket.socket(socket.AF_INET,socket.SOCK_STREAM) #\u4e70\u624b\u673a\ns.bind(ip_port) #\u624b\u673a\u63d2\u5361\ns.listen(5)     #\u624b\u673a\u5f85\u673a\n\nconn,addr=s.accept()            #\u624b\u673a\u63a5\u7535\u8bdd\n# print(conn)\n# print(addr)\nprint('\u63a5\u5230\u6765\u81ea%s\u7684\u7535\u8bdd' %addr[0])\n\nmsg=conn.recv(BUFSIZE)             #\u542c\u6d88\u606f,\u542c\u8bdd\nprint(msg,type(msg))\n\nconn.send(msg.upper())          #\u53d1\u6d88\u606f,\u8bf4\u8bdd\n\nconn.close()                    #\u6302\u7535\u8bdd\n\ns.close()                       #\u624b\u673a\u5173\u673a<\/code><\/pre>\n
\u5ba2\u6237\u7aef\uff1a<\/p>\n
#_*_coding:utf-8_*_\n__author__ = 'Linhaifeng'\nimport socket\nip_port=('127.0.0.1',9000)\nBUFSIZE=1024\ns=socket.socket(socket.AF_INET,socket.SOCK_STREAM)\n\ns.connect_ex(ip_port)           #\u62e8\u7535\u8bdd\n\ns.send('linhaifeng nb'.encode('utf-8'))         #\u53d1\u6d88\u606f,\u8bf4\u8bdd(\u53ea\u80fd\u53d1\u9001\u5b57\u8282\u7c7b\u578b)\n\nfeedback=s.recv(BUFSIZE)                           #\u6536\u6d88\u606f,\u542c\u8bdd\nprint(feedback.decode('utf-8'))\n\ns.close()                                       #\u6302\u7535\u8bdd<\/code><\/pre>\n
\u52a0\u4e0a\u94fe\u63a5\u5faa\u73af\u4e0e\u901a\u4fe1\u5faa\u73af<\/p>\n
\u670d\u52a1\u7aef\u6539\u8fdb\u7248:<\/p>\n
#_*_coding:utf-8_*_\n__author__ = 'Linhaifeng'\nimport socket\nip_port=('127.0.0.1',8081)#\u7535\u8bdd\u5361\nBUFSIZE=1024\ns=socket.socket(socket.AF_INET,socket.SOCK_STREAM) #\u4e70\u624b\u673a\ns.bind(ip_port) #\u624b\u673a\u63d2\u5361\ns.listen(5)     #\u624b\u673a\u5f85\u673a\n\nwhile True:                         #\u65b0\u589e\u63a5\u6536\u94fe\u63a5\u5faa\u73af,\u53ef\u4ee5\u4e0d\u505c\u7684\u63a5\u7535\u8bdd\n    conn,addr=s.accept()            #\u624b\u673a\u63a5\u7535\u8bdd\n    # print(conn)\n    # print(addr)\n    print('\u63a5\u5230\u6765\u81ea%s\u7684\u7535\u8bdd' %addr[0])\n    while True:                         #\u65b0\u589e\u901a\u4fe1\u5faa\u73af,\u53ef\u4ee5\u4e0d\u65ad\u7684\u901a\u4fe1,\u6536\u53d1\u6d88\u606f\n        msg=conn.recv(BUFSIZE)             #\u542c\u6d88\u606f,\u542c\u8bdd\n\n        # if len(msg) == 0:break        #\u5982\u679c\u4e0d\u52a0,\u90a3\u4e48\u6b63\u5728\u94fe\u63a5\u7684\u5ba2\u6237\u7aef\u7a81\u7136\u65ad\u5f00,recv\u4fbf\u4e0d\u518d\u963b\u585e,\u6b7b\u5faa\u73af\u53d1\u751f\n\n        print(msg,type(msg))\n\n        conn.send(msg.upper())          #\u53d1\u6d88\u606f,\u8bf4\u8bdd\n\n    conn.close()                    #\u6302\u7535\u8bdd\n\ns.close()                       #\u624b\u673a\u5173\u673a<\/code><\/pre>\n
\u5ba2\u6237\u7aef\u6539\u8fdb\u7248<\/p>\n
#_*_coding:utf-8_*_\n__author__ = 'Linhaifeng'\nimport socket\nip_port=('127.0.0.1',8081)\nBUFSIZE=1024\ns=socket.socket(socket.AF_INET,socket.SOCK_STREAM)\n\ns.connect_ex(ip_port)           # \u62e8\u7535\u8bdd\n\nwhile True:                             # \u65b0\u589e\u901a\u4fe1\u5faa\u73af,\u5ba2\u6237\u7aef\u53ef\u4ee5\u4e0d\u65ad\u53d1\u6536\u6d88\u606f\n    msg=input('>>: ').strip()\n    if len(msg) == 0:continue\n    s.send(msg.encode('utf-8'))         # \u53d1\u6d88\u606f,\u8bf4\u8bdd(\u53ea\u80fd\u53d1\u9001\u5b57\u8282\u7c7b\u578b)\n\n    feedback=s.recv(BUFSIZE)                           # \u6536\u6d88\u606f,\u542c\u8bdd\n    print(feedback.decode('utf-8'))\n\ns.close()                                       # \u6302\u7535\u8bdd<\/code><\/pre>\n
\u95ee\u9898\uff1a<\/p>\n
\u6709\u7684\u540c\u5b66\u5728\u91cd\u542f\u670d\u52a1\u7aef\u65f6\u53ef\u80fd\u4f1a\u9047\u5230<\/p>\n
\"\"<\/div><\/p>\n
\u8fd9\u4e2a\u662f\u7531\u4e8e\u4f60\u7684\u670d\u52a1\u7aef\u4ecd\u7136\u5b58\u5728\u56db\u6b21\u6325\u624b\u7684time_wait\u72b6\u6001\u5728\u5360\u7528\u5730\u5740<\/p>\n
\u89e3\u51b3\u65b9\u6cd5\uff1a<\/p>\n
\u65b9\u6cd5\u4e00<\/p>\n
#\u52a0\u5165\u4e00\u6761socket\u914d\u7f6e\uff0c\u91cd\u7528ip\u548c\u7aef\u53e3\n\nphone=socket(AF_INET,SOCK_STREAM)\nphone.setsockopt(SOL_SOCKET,SO_REUSEADDR,1) #\u5c31\u662f\u5b83\uff0c\u5728bind\u524d\u52a0\nphone.bind(('127.0.0.1',8080))<\/code><\/pre>\n
\u65b9\u6cd5\u4e8c<\/p>\n
\u53d1\u73b0\u7cfb\u7edf\u5b58\u5728\u5927\u91cfTIME_WAIT\u72b6\u6001\u7684\u8fde\u63a5\uff0c\u901a\u8fc7\u8c03\u6574linux\u5185\u6838\u53c2\u6570\u89e3\u51b3\uff0c\nvi \/etc\/sysctl.conf\n\n\u7f16\u8f91\u6587\u4ef6\uff0c\u52a0\u5165\u4ee5\u4e0b\u5185\u5bb9\uff1a\nnet.ipv4.tcp_syncookies = 1\nnet.ipv4.tcp_tw_reuse = 1\nnet.ipv4.tcp_tw_recycle = 1\nnet.ipv4.tcp_fin_timeout = 30\n\n\u7136\u540e\u6267\u884c \/sbin\/sysctl -p \u8ba9\u53c2\u6570\u751f\u6548\u3002\n\nnet.ipv4.tcp_syncookies = 1 \u8868\u793a\u5f00\u542fSYN Cookies\u3002\u5f53\u51fa\u73b0SYN\u7b49\u5f85\u961f\u5217\u6ea2\u51fa\u65f6\uff0c\u542f\u7528cookies\u6765\u5904\u7406\uff0c\u53ef\u9632\u8303\u5c11\u91cfSYN\u653b\u51fb\uff0c\u9ed8\u8ba4\u4e3a0\uff0c\u8868\u793a\u5173\u95ed\uff1b\n\nnet.ipv4.tcp_tw_reuse = 1 \u8868\u793a\u5f00\u542f\u91cd\u7528\u3002\u5141\u8bb8\u5c06TIME-WAIT sockets\u91cd\u65b0\u7528\u4e8e\u65b0\u7684TCP\u8fde\u63a5\uff0c\u9ed8\u8ba4\u4e3a0\uff0c\u8868\u793a\u5173\u95ed\uff1b\n\nnet.ipv4.tcp_tw_recycle = 1 \u8868\u793a\u5f00\u542fTCP\u8fde\u63a5\u4e2dTIME-WAIT sockets\u7684\u5feb\u901f\u56de\u6536\uff0c\u9ed8\u8ba4\u4e3a0\uff0c\u8868\u793a\u5173\u95ed\u3002\n\nnet.ipv4.tcp_fin_timeout \u4fee\u6539\u7cfb\u7d71\u9ed8\u8ba4\u7684 TIMEOUT \u65f6\u95f4<\/code><\/pre>\n
5\u3001\u57fa\u4e8eUDP\u7684\u5957\u63a5\u5b57<\/h3>\n
udp\u662f\u65e0\u94fe\u63a5\u7684\uff0c\u5148\u542f\u52a8\u54ea\u4e00\u7aef\u90fd\u4e0d\u4f1a\u62a5\u9519<\/p>\n
udp\u670d\u52a1\u7aef<\/p>\n
1 ss = socket()   #\u521b\u5efa\u4e00\u4e2a\u670d\u52a1\u5668\u7684\u5957\u63a5\u5b57\n2 ss.bind()       #\u7ed1\u5b9a\u670d\u52a1\u5668\u5957\u63a5\u5b57\n3 inf_loop:       #\u670d\u52a1\u5668\u65e0\u9650\u5faa\u73af\n4     cs = ss.recvfrom()\/ss.sendto() # \u5bf9\u8bdd(\u63a5\u6536\u4e0e\u53d1\u9001)\n5 ss.close()                         # \u5173\u95ed\u670d\u52a1\u5668\u5957\u63a5\u5b57<\/code><\/pre>\n
udp\u5ba2\u6237\u7aef<\/p>\n
cs = socket()   # \u521b\u5efa\u5ba2\u6237\u5957\u63a5\u5b57\ncomm_loop:      # \u901a\u8baf\u5faa\u73af\n    cs.sendto()\/cs.recvfrom()   # \u5bf9\u8bdd(\u53d1\u9001\/\u63a5\u6536)\ncs.close()                      # \u5173\u95ed\u5ba2\u6237\u5957\u63a5\u5b57<\/code><\/pre>\n
udp\u5957\u63a5\u5b57\u7b80\u5355\u793a\u4f8b<\/p>\n
udp\u670d\u52a1\u7aef<\/p>\n
#_*_coding:utf-8_*_\n__author__ = 'Linhaifeng'\nimport socket\nip_port=('127.0.0.1',9000)\nBUFSIZE=1024\nudp_server_client=socket.socket(socket.AF_INET,socket.SOCK_DGRAM)\n\nudp_server_client.bind(ip_port)\n\nwhile True:\n    msg,addr=udp_server_client.recvfrom(BUFSIZE)\n    print(msg,addr)\n\n    udp_server_client.sendto(msg.upper(),addr)<\/code><\/pre>\n
udp\u5ba2\u6237\u7aef<\/p>\n
#_*_coding:utf-8_*_\n__author__ = 'Linhaifeng'\nimport socket\nip_port=('127.0.0.1',9000)\nBUFSIZE=1024\nudp_server_client=socket.socket(socket.AF_INET,socket.SOCK_DGRAM)\n\nwhile True:\n    msg=input('>>: ').strip()\n    if not msg:continue\n\n    udp_server_client.sendto(msg.encode('utf-8'),ip_port)\n\n    back_msg,addr=udp_server_client.recvfrom(BUFSIZE)\n    print(back_msg.decode('utf-8'),addr)<\/code><\/pre>\n
qq\u804a\u5929(\u7531\u4e8eudp\u65e0\u8fde\u63a5\uff0c\u6240\u4ee5\u53ef\u4ee5\u540c\u65f6\u591a\u4e2a\u5ba2\u6237\u7aef\u53bb\u8ddf\u670d\u52a1\u7aef\u901a\u4fe1)<\/p>\n
udp\u670d\u52a1\u7aef<\/p>\n
#_*_coding:utf-8_*_\n__author__ = 'Linhaifeng'\nimport socket\nip_port=('127.0.0.1',8081)\nudp_server_sock=socket.socket(socket.AF_INET,socket.SOCK_DGRAM) #\u4e70\u624b\u673a\nudp_server_sock.bind(ip_port)\n\nwhile True:\n    qq_msg,addr=udp_server_sock.recvfrom(1024)\n    print('\u6765\u81ea[%s:%s]\u7684\u4e00\u6761\u6d88\u606f:\\033[1;44m%s\\033[0m' %(addr[0],addr[1],qq_msg.decode('utf-8')))\n    back_msg=input('\u56de\u590d\u6d88\u606f: ').strip()\n\n    udp_server_sock.sendto(back_msg.encode('utf-8'),addr)<\/code><\/pre>\n
udp\u5ba2\u6237\u7aef1<\/p>\n
#_*_coding:utf-8_*_\n__author__ = 'Linhaifeng'\nimport socket\nBUFSIZE=1024\nudp_client_socket=socket.socket(socket.AF_INET,socket.SOCK_DGRAM)\n\nqq_name_dic={\n    '\u72d7\u54e5alex':('127.0.0.1',8081),\n    '\u778e\u9a74':('127.0.0.1',8081),\n    '\u4e00\u68f5\u6811':('127.0.0.1',8081),\n    '\u6b66\u5927\u90ce':('127.0.0.1',8081),\n}\n\nwhile True:\n    qq_name=input('\u8bf7\u9009\u62e9\u804a\u5929\u5bf9\u8c61: ').strip()\n    while True:\n        msg=input('\u8bf7\u8f93\u5165\u6d88\u606f,\u56de\u8f66\u53d1\u9001: ').strip()\n        if msg == 'quit':break\n        if not msg or not qq_name or qq_name not in qq_name_dic:continue\n        udp_client_socket.sendto(msg.encode('utf-8'),qq_name_dic[qq_name])\n\n        back_msg,addr=udp_client_socket.recvfrom(BUFSIZE)\n        print('\u6765\u81ea[%s:%s]\u7684\u4e00\u6761\u6d88\u606f:\\033[1;44m%s\\033[0m' %(addr[0],addr[1],back_msg.decode('utf-8')))\n\nudp_client_socket.close()<\/code><\/pre>\n
udp\u5ba2\u6237\u7aef2<\/p>\n
#_*_coding:utf-8_*_\n__author__ = 'Linhaifeng'\nimport socket\nBUFSIZE=1024\nudp_client_socket=socket.socket(socket.AF_INET,socket.SOCK_DGRAM)\n\nqq_name_dic={\n    '\u72d7\u54e5alex':('127.0.0.1',8081),\n    '\u778e\u9a74':('127.0.0.1',8081),\n    '\u4e00\u68f5\u6811':('127.0.0.1',8081),\n    '\u6b66\u5927\u90ce':('127.0.0.1',8081),\n}\n\nwhile True:\n    qq_name=input('\u8bf7\u9009\u62e9\u804a\u5929\u5bf9\u8c61: ').strip()\n    while True:\n        msg=input('\u8bf7\u8f93\u5165\u6d88\u606f,\u56de\u8f66\u53d1\u9001: ').strip()\n        if msg == 'quit':break\n        if not msg or not qq_name or qq_name not in qq_name_dic:continue\n        udp_client_socket.sendto(msg.encode('utf-8'),qq_name_dic[qq_name])\n\n        back_msg,addr=udp_client_socket.recvfrom(BUFSIZE)\n        print('\u6765\u81ea[%s:%s]\u7684\u4e00\u6761\u6d88\u606f:\\033[1;44m%s\\033[0m' %(addr[0],addr[1],back_msg.decode('utf-8')))\n\nudp_client_socket.close()<\/code><\/pre>\n
\u670d\u52a1\u7aef\u8fd0\u884c\u7ed3\u679c<\/p>\n
\u5ba2\u6237\u7aef1\u8fd0\u884c\u7ed3\u679c<\/p>\n
\u5ba2\u6237\u7aef2\u8fd0\u884c\u7ed3\u679c<\/p>\n
\u65f6\u95f4\u670d\u52a1\u5668<\/p>\n
ntp\u670d\u52a1\u7aef<\/p>\n
#_*_coding:utf-8_*_\n__author__ = 'Linhaifeng'\nfrom socket import *\nfrom time import strftime\n\nip_port=('127.0.0.1',9000)\nbufsize=1024\n\ntcp_server=socket(AF_INET,SOCK_DGRAM)\ntcp_server.bind(ip_port)\n\nwhile True:\n    msg,addr=tcp_server.recvfrom(bufsize)\n    print('===>',msg)\n\n    if not msg:\n        time_fmt='%Y-%m-%d %X'\n    else:\n        time_fmt=msg.decode('utf-8')\n    back_msg=strftime(time_fmt)\n\n    tcp_server.sendto(back_msg.encode('utf-8'),addr)\n\ntcp_server.close()<\/code><\/pre>\n
ntp\u5ba2\u6237\u7aef<\/p>\n
#_*_coding:utf-8_*_\n__author__ = 'Linhaifeng'\nfrom socket import *\nip_port=('127.0.0.1',9000)\nbufsize=1024\n\ntcp_client=socket(AF_INET,SOCK_DGRAM)\n\nwhile True:\n    msg=input('\u8bf7\u8f93\u5165\u65f6\u95f4\u683c\u5f0f(\u4f8b%Y %m %d)>>: ').strip()\n    tcp_client.sendto(msg.encode('utf-8'),ip_port)\n    data=tcp_client.recv(bufsize)\n    print(data.decode('utf-8'))\n\ntcp_client.close()<\/code><\/pre>\n
\u516d\u3001\u7c98\u5305\u73b0\u8c61<\/h2>\n
\u8ba9\u6211\u4eec\u57fa\u4e8etcp\u5148\u5236\u4f5c\u4e00\u4e2a\u8fdc\u7a0b\u6267\u884c\u547d\u4ee4\u7684\u7a0b\u5e8f\uff081\uff1a\u6267\u884c\u9519\u8bef\u547d\u4ee4 2\uff1a\u6267\u884cls 3\uff1a\u6267\u884cifconfig\uff09<\/p>\n
*\u6ce8\u610f\uff1a*<\/em><\/strong><\/p>\n
res=subprocess.Popen(cmd.decode(\u2018utf-8\u2019), shell=True, stderr=subprocess.PIPE, stdout=subprocess.PIPE)<\/p>\n
\u7684\u7ed3\u679c\u7684\u7f16\u7801\u662f\u4ee5\u5f53\u524d\u6240\u5728\u7684\u7cfb\u7edf\u4e3a\u51c6\u7684\uff0c\u5982\u679c\u662fwindows\uff0c\u90a3\u4e48\\<\/em>res.stdout.read()\u8bfb\u51fa\u7684\u5c31\u662fGBK\u7f16\u7801\u7684***\uff0c\u5728\u63a5\u6536\u7aef\u9700<\/em><\/strong>*\u8981\u7528GBK\u89e3\u7801****<\/p>\n
*\u4e14\u53ea\u80fd\u4ece\u7ba1\u9053\u91cc\u8bfb\u4e00\u6b21\u7ed3\u679c*<\/em><\/strong><\/p>\n
\u6ce8\u610f\uff1a\u547d\u4ee4ls -l ; lllllll ; pwd \u7684\u7ed3\u679c\u662f\u65e2\u6709\u6b63\u786estdout\u7ed3\u679c\uff0c\u53c8\u6709\u9519\u8befstderr\u7ed3\u679c<\/p>\n
\u670d\u52a1\u7aef<\/p>\n
#_*_coding:utf-8_*_\n__author__ = 'Linhaifeng'\nfrom socket import *\nimport subprocess\n\nip_port=('127.0.0.1',8080)\nBUFSIZE=1024\n\ntcp_socket_server=socket(AF_INET,SOCK_STREAM)\ntcp_socket_server.bind(ip_port)\ntcp_socket_server.listen(5)\n\nwhile True:\n    conn,addr=tcp_socket_server.accept()\n    print('\u5ba2\u6237\u7aef',addr)\n\n    while True:\n        cmd=conn.recv(BUFSIZE)\n        if len(cmd) == 0:break\n\n        res=subprocess.Popen(cmd.decode('utf-8'),shell=True,\n                         stdout=subprocess.PIPE,\n                         stdin=subprocess.PIPE,\n                         stderr=subprocess.PIPE)\n\n        stderr=act_res.stderr.read()\n        stdout=act_res.stdout.read()\n        conn.send(stderr)\n        conn.send(stdout)<\/code><\/pre>\n
\u5ba2\u6237\u7aef<\/p>\n
#_*_coding:utf-8_*_\n__author__ = 'Linhaifeng'\nimport socket\nBUFSIZE=1024\nip_port=('127.0.0.1',8080)\n\ns=socket.socket(socket.AF_INET,socket.SOCK_STREAM)\nres=s.connect_ex(ip_port)\n\nwhile True:\n    msg=input('>>: ').strip()\n    if len(msg) == 0:continue\n    if msg == 'quit':break\n\n    s.send(msg.encode('utf-8'))\n    act_res=s.recv(BUFSIZE)\n\n    print(act_res.decode('utf-8'),end='')<\/code><\/pre>\n
\u4e0a\u8ff0\u7a0b\u5e8f\u662f\u57fa\u4e8etcp\u7684socket\uff0c\u5728\u8fd0\u884c\u65f6\u4f1a\u53d1\u751f\u7c98\u5305<\/p>\n
\u8ba9\u6211\u4eec\u518d\u57fa\u4e8eudp\u5236\u4f5c\u4e00\u4e2a\u8fdc\u7a0b\u6267\u884c\u547d\u4ee4\u7684\u7a0b\u5e8f<\/p>\n
\u670d\u52a1\u7aef<\/p>\n
#_*_coding:utf-8_*_\n__author__ = 'Linhaifeng'\nfrom socket import *\nimport subprocess\n\nip_port=('127.0.0.1',9003)\nbufsize=1024\n\nudp_server=socket(AF_INET,SOCK_DGRAM)\nudp_server.bind(ip_port)\n\nwhile True:\n    #\u6536\u6d88\u606f\n    cmd,addr=udp_server.recvfrom(bufsize)\n    print('\u7528\u6237\u547d\u4ee4----->',cmd)\n\n    #\u903b\u8f91\u5904\u7406\n    res=subprocess.Popen(cmd.decode('utf-8'),shell=True,stderr=subprocess.PIPE,stdin=subprocess.PIPE,stdout=subprocess.PIPE)\n    stderr=res.stderr.read()\n    stdout=res.stdout.read()\n\n    #\u53d1\u6d88\u606f\n    udp_server.sendto(stderr,addr)\n    udp_server.sendto(stdout,addr)\nudp_server.close()<\/code><\/pre>\n
\u5ba2\u6237\u7aef<\/p>\n
from socket import *\nip_port=('127.0.0.1',9003)\nbufsize=1024\n\nudp_client=socket(AF_INET,SOCK_DGRAM)\n\nwhile True:\n    msg=input('>>: ').strip()\n    udp_client.sendto(msg.encode('utf-8'),ip_port)\n\n    data,addr=udp_client.recvfrom(bufsize)\n    print(data.decode('utf-8'),end='')<\/code><\/pre>\n
\u4e0a\u8ff0\u7a0b\u5e8f\u662f\u57fa\u4e8eudp\u7684socket\uff0c\u5728\u8fd0\u884c\u65f6\u6c38\u8fdc\u4e0d\u4f1a\u53d1\u751f\u7c98\u5305<\/p>\n
\u4e03\u3001\u4ec0\u4e48\u662f\u7c98\u5305<\/h2>\n
\u987b\u77e5\uff1a\u53ea\u6709TCP\u6709\u7c98\u5305\u73b0\u8c61\uff0cUDP\u6c38\u8fdc\u4e0d\u4f1a\u7c98\u5305\uff0c\u4e3a\u4f55\uff0c\u4e14\u542c\u6211\u5a13\u5a13\u9053\u6765<\/p>\n
\u9996\u5148\u9700\u8981\u638c\u63e1\u4e00\u4e2asocket\u6536\u53d1\u6d88\u606f\u7684\u539f\u7406<\/p>\n
\"\"<\/div><\/p>\n
\u53d1\u9001\u7aef\u53ef\u4ee5\u662f\u4e00K\u4e00K\u5730\u53d1\u9001\u6570\u636e\uff0c\u800c\u63a5\u6536\u7aef\u7684\u5e94\u7528\u7a0b\u5e8f\u53ef\u4ee5\u4e24K\u4e24K\u5730\u63d0\u8d70\u6570\u636e\uff0c\u5f53\u7136\u4e5f\u6709\u53ef\u80fd\u4e00\u6b21\u63d0\u8d703K\u62166K\u6570\u636e\uff0c\u6216\u8005\u4e00\u6b21\u53ea\u63d0\u8d70\u51e0\u4e2a\u5b57\u8282\u7684\u6570\u636e\uff0c\u4e5f\u5c31\u662f\u8bf4\uff0c\u5e94\u7528\u7a0b\u5e8f\u6240\u770b\u5230\u7684\u6570\u636e\u662f\u4e00\u4e2a\u6574\u4f53\uff0c\u6216\u8bf4\u662f\u4e00\u4e2a\u6d41\uff08stream\uff09\uff0c\u4e00\u6761\u6d88\u606f\u6709\u591a\u5c11\u5b57\u8282\u5bf9\u5e94\u7528\u7a0b\u5e8f\u662f\u4e0d\u53ef\u89c1\u7684\uff0c\u56e0\u6b64TCP\u534f\u8bae\u662f\u9762\u5411\u6d41\u7684\u534f\u8bae\uff0c\u8fd9\u4e5f\u662f\u5bb9\u6613\u51fa\u73b0\u7c98\u5305\u95ee\u9898\u7684\u539f\u56e0\u3002\u800cUDP\u662f\u9762\u5411\u6d88\u606f\u7684\u534f\u8bae\uff0c\u6bcf\u4e2aUDP\u6bb5\u90fd\u662f\u4e00\u6761\u6d88\u606f\uff0c\u5e94\u7528\u7a0b\u5e8f\u5fc5\u987b\u4ee5\u6d88\u606f\u4e3a\u5355\u4f4d\u63d0\u53d6\u6570\u636e\uff0c\u4e0d\u80fd\u4e00\u6b21\u63d0\u53d6\u4efb\u610f\u5b57\u8282\u7684\u6570\u636e\uff0c\u8fd9\u4e00\u70b9\u548cTCP\u662f\u5f88\u4e0d\u540c\u7684\u3002\u600e\u6837\u5b9a\u4e49\u6d88\u606f\u5462\uff1f\u53ef\u4ee5\u8ba4\u4e3a\u5bf9\u65b9\u4e00\u6b21\u6027write\/send\u7684\u6570\u636e\u4e3a\u4e00\u4e2a\u6d88\u606f\uff0c\u9700\u8981\u660e\u767d\u7684\u662f\u5f53\u5bf9\u65b9send\u4e00\u6761\u4fe1\u606f\u7684\u65f6\u5019\uff0c\u65e0\u8bba\u5e95\u5c42\u600e\u6837\u5206\u6bb5\u5206\u7247\uff0cTCP\u534f\u8bae\u5c42\u4f1a\u628a\u6784\u6210\u6574\u6761\u6d88\u606f\u7684\u6570\u636e\u6bb5\u6392\u5e8f\u5b8c\u6210\u540e\u624d\u5448\u73b0\u5728\u5185\u6838\u7f13\u51b2\u533a\u3002<\/p>\n
\u4f8b\u5982\u57fa\u4e8etcp\u7684\u5957\u63a5\u5b57\u5ba2\u6237\u7aef\u5f80\u670d\u52a1\u7aef\u4e0a\u4f20\u6587\u4ef6\uff0c\u53d1\u9001\u65f6\u6587\u4ef6\u5185\u5bb9\u662f\u6309\u7167\u4e00\u6bb5\u4e00\u6bb5\u7684\u5b57\u8282\u6d41\u53d1\u9001\u7684\uff0c\u5728\u63a5\u6536\u65b9\u770b\u4e86\uff0c\u6839\u672c\u4e0d\u77e5\u9053\u8be5\u6587\u4ef6\u7684\u5b57\u8282\u6d41\u4ece\u4f55\u5904\u5f00\u59cb\uff0c\u5728\u4f55\u5904\u7ed3\u675f<\/p>\n
\u6240\u8c13\u7c98\u5305\u95ee\u9898\u4e3b\u8981\u8fd8\u662f\u56e0\u4e3a\u63a5\u6536\u65b9\u4e0d\u77e5\u9053\u6d88\u606f\u4e4b\u95f4\u7684\u754c\u9650\uff0c\u4e0d\u77e5\u9053\u4e00\u6b21\u6027\u63d0\u53d6\u591a\u5c11\u5b57\u8282\u7684\u6570\u636e\u6240\u9020\u6210\u7684\u3002<\/p>\n
\u6b64\u5916\uff0c\u53d1\u9001\u65b9\u5f15\u8d77\u7684\u7c98\u5305\u662f\u7531TCP\u534f\u8bae\u672c\u8eab\u9020\u6210\u7684\uff0cTCP\u4e3a\u63d0\u9ad8\u4f20\u8f93\u6548\u7387\uff0c\u53d1\u9001\u65b9\u5f80\u5f80\u8981\u6536\u96c6\u5230\u8db3\u591f\u591a\u7684\u6570\u636e\u540e\u624d\u53d1\u9001\u4e00\u4e2aTCP\u6bb5\u3002\u82e5\u8fde\u7eed\u51e0\u6b21\u9700\u8981send\u7684\u6570\u636e\u90fd\u5f88\u5c11\uff0c\u901a\u5e38TCP\u4f1a\u6839\u636e\u4f18\u5316\u7b97\u6cd5<\/em><\/a>\u628a\u8fd9\u4e9b\u6570\u636e\u5408\u6210\u4e00\u4e2aTCP\u6bb5\u540e\u4e00\u6b21\u53d1\u9001\u51fa\u53bb\uff0c\u8fd9\u6837\u63a5\u6536\u65b9\u5c31\u6536\u5230\u4e86\u7c98\u5305\u6570\u636e\u3002<\/p>\n
TCP\uff08transport control protocol\uff0c\u4f20\u8f93\u63a7\u5236\u534f\u8bae\uff09\u662f\u9762\u5411\u8fde\u63a5\u7684\uff0c\u9762\u5411\u6d41\u7684\uff0c\u63d0\u4f9b\u9ad8\u53ef\u9760\u6027\u670d\u52a1\u3002\u6536\u53d1\u4e24\u7aef\uff08\u5ba2\u6237\u7aef\u548c\u670d\u52a1\u5668\u7aef\uff09\u90fd\u8981\u6709\u4e00\u4e00\u6210\u5bf9\u7684socket\uff0c\u56e0\u6b64\uff0c\u53d1\u9001\u7aef\u4e3a\u4e86\u5c06\u591a\u4e2a\u53d1\u5f80\u63a5\u6536\u7aef\u7684\u5305\uff0c\u66f4\u6709\u6548\u7684\u53d1\u5230\u5bf9\u65b9\uff0c\u4f7f\u7528\u4e86\u4f18\u5316\u65b9\u6cd5\uff08Nagle\u7b97\u6cd5\uff09\uff0c\u5c06\u591a\u6b21\u95f4\u9694\u8f83\u5c0f\u4e14\u6570\u636e\u91cf\u5c0f\u7684\u6570\u636e\uff0c\u5408\u5e76\u6210\u4e00\u4e2a\u5927\u7684\u6570\u636e\u5757\uff0c\u7136\u540e\u8fdb\u884c\u5c01\u5305\u3002\u8fd9\u6837\uff0c\u63a5\u6536\u7aef\uff0c\u5c31\u96be\u4e8e\u5206\u8fa8\u51fa\u6765\u4e86\uff0c\u5fc5\u987b\u63d0\u4f9b\u79d1\u5b66\u7684\u62c6\u5305\u673a\u5236\u3002 \u5373\u9762\u5411\u6d41\u7684\u901a\u4fe1\u662f\u65e0\u6d88\u606f\u4fdd\u62a4\u8fb9\u754c\u7684\u3002<\/p>\n
UDP\uff08user datagram protocol\uff0c\u7528\u6237\u6570\u636e\u62a5\u534f\u8bae\uff09\u662f\u65e0\u8fde\u63a5\u7684\uff0c\u9762\u5411\u6d88\u606f\u7684\uff0c\u63d0\u4f9b\u9ad8\u6548\u7387\u670d\u52a1\u3002\u4e0d\u4f1a\u4f7f\u7528\u5757\u7684\u5408\u5e76\u4f18\u5316\u7b97\u6cd5\uff0c, \u7531\u4e8eUDP\u652f\u6301\u7684\u662f\u4e00\u5bf9\u591a\u7684\u6a21\u5f0f\uff0c\u6240\u4ee5\u63a5\u6536\u7aef\u7684skbuff(\u5957\u63a5\u5b57\u7f13\u51b2\u533a\uff09\u91c7\u7528\u4e86\u94fe\u5f0f\u7ed3\u6784\u6765\u8bb0\u5f55\u6bcf\u4e00\u4e2a\u5230\u8fbe\u7684UDP\u5305\uff0c\u5728\u6bcf\u4e2aUDP\u5305\u4e2d\u5c31\u6709\u4e86\u6d88\u606f\u5934\uff08\u6d88\u606f\u6765\u6e90\u5730\u5740\uff0c\u7aef\u53e3\u7b49\u4fe1\u606f\uff09\uff0c\u8fd9\u6837\uff0c\u5bf9\u4e8e\u63a5\u6536\u7aef\u6765\u8bf4\uff0c\u5c31\u5bb9\u6613\u8fdb\u884c\u533a\u5206\u5904\u7406\u4e86\u3002 *\u5373\u9762\u5411\u6d88\u606f\u7684\u901a\u4fe1\u662f\u6709\u6d88\u606f\u4fdd\u62a4\u8fb9\u754c\u7684\u3002*<\/em><\/strong><\/p>\n
*tcp\u662f\u57fa\u4e8e\u6570\u636e\u6d41\u7684\uff0c\u4e8e\u662f\u6536\u53d1\u7684\u6d88\u606f\u4e0d\u80fd\u4e3a\u7a7a\uff0c\u8fd9\u5c31\u9700\u8981\u5728\u5ba2\u6237\u7aef\u548c\u670d\u52a1\u7aef\u90fd\u6dfb\u52a0\u7a7a\u6d88\u606f\u7684\u5904\u7406\u673a\u5236\uff0c\u9632\u6b62\u7a0b\u5e8f\u5361\u4f4f\uff0c\u800cudp\u662f\u57fa\u4e8e\u6570\u636e\u62a5\u7684\uff0c\u5373\u4fbf\u662f\u4f60\u8f93\u5165\u7684\u662f\u7a7a\u5185\u5bb9\uff08\u76f4\u63a5\u56de\u8f66\uff09\uff0c\u90a3\u4e5f\u4e0d\u662f\u7a7a\u6d88\u606f\uff0cudp\u534f\u8bae\u4f1a\u5e2e\u4f60\u5c01\u88c5\u4e0a\u6d88\u606f\u5934\uff0c\u5b9e\u9a8c\u7565*<\/em><\/strong><\/p>\n
udp\u7684recvfrom\u662f\u963b\u585e\u7684\uff0c\u4e00\u4e2arecvfrom(x)\u5fc5\u987b\u5bf9\u552f\u4e00\u4e00\u4e2asendinto(y),\u6536\u5b8c\u4e86x\u4e2a\u5b57\u8282\u7684\u6570\u636e\u5c31\u7b97\u5b8c\u6210,\u82e5\u662fy>x\u6570\u636e\u5c31\u4e22\u5931\uff0c\u8fd9\u610f\u5473\u7740udp\u6839\u672c\u4e0d\u4f1a\u7c98\u5305\uff0c\u4f46\u662f\u4f1a\u4e22\u6570\u636e\uff0c\u4e0d\u53ef\u9760<\/p>\n
tcp\u7684\u534f\u8bae\u6570\u636e\u4e0d\u4f1a\u4e22\uff0c\u6ca1\u6709\u6536\u5b8c\u5305\uff0c\u4e0b\u6b21\u63a5\u6536\uff0c\u4f1a\u7ee7\u7eed\u4e0a\u6b21\u7ee7\u7eed\u63a5\u6536\uff0c\u5df1\u7aef\u603b\u662f\u5728\u6536\u5230ack\u65f6\u624d\u4f1a\u6e05\u9664\u7f13\u51b2\u533a\u5185\u5bb9\u3002\u6570\u636e\u662f\u53ef\u9760\u7684\uff0c\u4f46\u662f\u4f1a\u7c98\u5305\u3002<\/p>\n
*\u4e24\u79cd\u60c5\u51b5\u4e0b\u4f1a\u53d1\u751f\u7c98\u5305\u3002*\\<\/strong><\/strong><\/p>\n
\u53d1\u9001\u7aef\u9700\u8981\u7b49\u7f13\u51b2\u533a\u6ee1\u624d\u53d1\u9001\u51fa\u53bb\uff0c\u9020\u6210\u7c98\u5305\uff08\u53d1\u9001\u6570\u636e\u65f6\u95f4\u95f4\u9694\u5f88\u77ed\uff0c\u6570\u636e\u4e86\u5f88\u5c0f\uff0c\u4f1a\u5408\u5230\u4e00\u8d77\uff0c\u4ea7\u751f\u7c98\u5305\uff09<\/p>\n
\u670d\u52a1\u7aef<\/p>\n
#_*_coding:utf-8_*_\n__author__ = 'Linhaifeng'\nfrom socket import *\nip_port=('127.0.0.1',8080)\n\ntcp_socket_server=socket(AF_INET,SOCK_STREAM)\ntcp_socket_server.bind(ip_port)\ntcp_socket_server.listen(5)\n\nconn,addr=tcp_socket_server.accept()\n\ndata1=conn.recv(10)\ndata2=conn.recv(10)\n\nprint('----->',data1.decode('utf-8'))\nprint('----->',data2.decode('utf-8'))\n\nconn.close()<\/code><\/pre>\n
\u5ba2\u6237\u7aef<\/p>\n
#_*_coding:utf-8_*_\n__author__ = 'Linhaifeng'\nimport socket\nBUFSIZE=1024\nip_port=('127.0.0.1',8080)\n\ns=socket.socket(socket.AF_INET,socket.SOCK_STREAM)\nres=s.connect_ex(ip_port)\n\ns.send('hello'.encode('utf-8'))\ns.send('feng'.encode('utf-8'))<\/code><\/pre>\n
\u63a5\u6536\u65b9\u4e0d\u53ca\u65f6\u63a5\u6536\u7f13\u51b2\u533a\u7684\u5305\uff0c\u9020\u6210\u591a\u4e2a\u5305\u63a5\u6536\uff08\u5ba2\u6237\u7aef\u53d1\u9001\u4e86\u4e00\u6bb5\u6570\u636e\uff0c\u670d\u52a1\u7aef\u53ea\u6536\u4e86\u4e00\u5c0f\u90e8\u5206\uff0c\u670d\u52a1\u7aef\u4e0b\u6b21\u518d\u6536\u7684\u65f6\u5019\u8fd8\u662f\u4ece\u7f13\u51b2\u533a\u62ff\u4e0a\u6b21\u9057\u7559\u7684\u6570\u636e\uff0c\u4ea7\u751f\u7c98\u5305\uff09<\/p>\n
\u670d\u52a1\u7aef<\/p>\n
#_*_coding:utf-8_*_\n__author__ = 'Linhaifeng'\nfrom socket import *\nip_port=('127.0.0.1',8080)\n\ntcp_socket_server=socket(AF_INET,SOCK_STREAM)\ntcp_socket_server.bind(ip_port)\ntcp_socket_server.listen(5)\n\nconn,addr=tcp_socket_server.accept()\n\ndata1=conn.recv(2) #\u4e00\u6b21\u6ca1\u6709\u6536\u5b8c\u6574\ndata2=conn.recv(10)#\u4e0b\u6b21\u6536\u7684\u65f6\u5019,\u4f1a\u5148\u53d6\u65e7\u7684\u6570\u636e,\u7136\u540e\u53d6\u65b0\u7684\n\nprint('----->',data1.decode('utf-8'))\nprint('----->',data2.decode('utf-8'))\n\nconn.close()<\/code><\/pre>\n
\u5ba2\u6237\u7aef<\/p>\n
#_*_coding:utf-8_*_\n__author__ = 'Linhaifeng'\nimport socket\nBUFSIZE=1024\nip_port=('127.0.0.1',8080)\n\ns=socket.socket(socket.AF_INET,socket.SOCK_STREAM)\nres=s.connect_ex(ip_port)\n\ns.send('hello feng'.encode('utf-8'))<\/code><\/pre>\n
*\u62c6\u5305\u7684\u53d1\u751f\u60c5\u51b5*\\<\/strong><\/strong><\/p>\n
\u5f53\u53d1\u9001\u7aef\u7f13\u51b2\u533a\u7684\u957f\u5ea6\u5927\u4e8e\u7f51\u5361\u7684MTU\u65f6\uff0ctcp\u4f1a\u5c06\u8fd9\u6b21\u53d1\u9001\u7684\u6570\u636e\u62c6\u6210\u51e0\u4e2a\u6570\u636e\u5305\u53d1\u9001\u51fa\u53bb\u3002<\/p>\n
*\u8865\u5145\u95ee\u9898\u4e00\uff1a\u4e3a\u4f55tcp\u662f\u53ef\u9760\u4f20\u8f93\uff0cudp\u662f\u4e0d\u53ef\u9760\u4f20\u8f93*\\<\/strong><\/strong><\/p>\n
tcp\u5728\u6570\u636e\u4f20\u8f93\u65f6\uff0c\u53d1\u9001\u7aef\u5148\u628a\u6570\u636e\u53d1\u9001\u5230\u81ea\u5df1\u7684\u7f13\u5b58\u4e2d\uff0c\u7136\u540e\u534f\u8bae\u63a7\u5236\u5c06\u7f13\u5b58\u4e2d\u7684\u6570\u636e\u53d1\u5f80\u5bf9\u7aef\uff0c\u5bf9\u7aef\u8fd4\u56de\u4e00\u4e2aack=1\uff0c\u53d1\u9001\u7aef\u5219\u6e05\u7406\u7f13\u5b58\u4e2d\u7684\u6570\u636e\uff0c\u5bf9\u7aef\u8fd4\u56deack=0\uff0c\u5219\u91cd\u65b0\u53d1\u9001\u6570\u636e\uff0c\u6240\u4ee5tcp\u662f\u53ef\u9760\u7684<\/p>\n
\u800cudp\u53d1\u9001\u6570\u636e\uff0c\u5bf9\u7aef\u662f\u4e0d\u4f1a\u8fd4\u56de\u786e\u8ba4\u4fe1\u606f\u7684\uff0c\u56e0\u6b64\u4e0d\u53ef\u9760<\/p>\n
*\u8865\u5145\u95ee\u9898\u4e8c\uff1asend(\u5b57\u8282\u6d41)\u548crecv(1024)\u53casendall*\\<\/strong><\/strong><\/p>\n
recv\u91cc\u6307\u5b9a\u76841024\u610f\u601d\u662f\u4ece\u7f13\u5b58\u91cc\u4e00\u6b21\u62ff\u51fa1024\u4e2a\u5b57\u8282\u7684\u6570\u636e<\/p>\n
send\u7684\u5b57\u8282\u6d41\u662f\u5148\u653e\u5165\u5df1\u7aef\u7f13\u5b58\uff0c\u7136\u540e\u7531\u534f\u8bae\u63a7\u5236\u5c06\u7f13\u5b58\u5185\u5bb9\u53d1\u5f80\u5bf9\u7aef\uff0c\u5982\u679c\u5f85\u53d1\u9001\u7684\u5b57\u8282\u6d41\u5927\u5c0f\u5927\u4e8e\u7f13\u5b58\u5269\u4f59\u7a7a\u95f4\uff0c\u90a3\u4e48\u6570\u636e\u4e22\u5931\uff0c\u7528sendall\u5c31\u4f1a\u5faa\u73af\u8c03\u7528send\uff0c\u6570\u636e\u4e0d\u4f1a\u4e22\u5931<\/p>\n
\u516b\u3001\u89e3\u51b3\u7c98\u5305\u7684\u57fa\u7840\u5904\u7406\u65b9\u6cd5<\/h2>\n
\u95ee\u9898\u7684\u6839\u6e90\u5728\u4e8e\uff0c\u63a5\u6536\u7aef\u4e0d\u77e5\u9053\u53d1\u9001\u7aef\u5c06\u8981\u4f20\u9001\u7684\u5b57\u8282\u6d41\u7684\u957f\u5ea6\uff0c\u6240\u4ee5\u89e3\u51b3\u7c98\u5305\u7684\u65b9\u6cd5\u5c31\u662f\u56f4\u7ed5\uff0c\u5982\u4f55\u8ba9\u53d1\u9001\u7aef\u5728\u53d1\u9001\u6570\u636e\u524d\uff0c\u628a\u81ea\u5df1\u5c06\u8981\u53d1\u9001\u7684\u5b57\u8282\u6d41\u603b\u5927\u5c0f\u8ba9\u63a5\u6536\u7aef\u77e5\u6653\uff0c\u7136\u540e\u63a5\u6536\u7aef\u6765\u4e00\u4e2a\u6b7b\u5faa\u73af\u63a5\u6536\u5b8c\u6240\u6709\u6570\u636e<\/p>\n
\u57fa\u7840\u7248\u672c\u7684\u89e3\u51b3\u65b9\u6cd5<\/p>\n
\u670d\u52a1\u7aef<\/p>\n
#_*_coding:utf-8_*_\n__author__ = 'Linhaifeng'\nimport socket,subprocess\nip_port=('127.0.0.1',8080)\ns=socket.socket(socket.AF_INET,socket.SOCK_STREAM)\ns.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)\n\ns.bind(ip_port)\ns.listen(5)\n\nwhile True:\n    conn,addr=s.accept()\n    print('\u5ba2\u6237\u7aef',addr)\n    while True:\n        msg=conn.recv(1024)\n        if not msg:break\n        res=subprocess.Popen(msg.decode('utf-8'),shell=True,\\\n                            stdin=subprocess.PIPE,\\\n                         stderr=subprocess.PIPE,\\\n                         stdout=subprocess.PIPE)\n        err=res.stderr.read()\n        if err:\n            ret=err\n        else:\n            ret=res.stdout.read()\n        data_length=len(ret)\n        conn.send(str(data_length).encode('utf-8'))\n        data=conn.recv(1024).decode('utf-8')\n        if data == 'recv_ready':\n            conn.sendall(ret)\n    conn.close()<\/code><\/pre>\n
\u5ba2\u6237\u7aef<\/p>\n
#_*_coding:utf-8_*_\n__author__ = 'Linhaifeng'\nimport socket,time\ns=socket.socket(socket.AF_INET,socket.SOCK_STREAM)\nres=s.connect_ex(('127.0.0.1',8080))\n\nwhile True:\n    msg=input('>>: ').strip()\n    if len(msg) == 0:continue\n    if msg == 'quit':break\n\n    s.send(msg.encode('utf-8'))\n    length=int(s.recv(1024).decode('utf-8'))\n    s.send('recv_ready'.encode('utf-8'))\n    send_size=0\n    recv_size=0\n    data=b''\n    while recv_size < length:\n        data+=s.recv(1024)\n        recv_size+=len(data)\n\n    print(data.decode('utf-8'))<\/code><\/pre>\n
\u4e3a\u4ec0\u4e48\u8fd9\u79cd\u5904\u7406\u65b9\u6cd5\u4e0d\u597d?<\/p>\n
\u7a0b\u5e8f\u7684\u8fd0\u884c\u901f\u5ea6\u8fdc\u5feb\u4e8e\u7f51\u7edc\u4f20\u8f93\u901f\u5ea6\uff0c\u6240\u4ee5\u5728\u53d1\u9001\u4e00\u6bb5\u5b57\u8282\u524d\uff0c\u5148\u7528send\u53bb\u53d1\u9001\u8be5\u5b57\u8282\u6d41\u957f\u5ea6\uff0c\u8fd9\u79cd\u65b9\u5f0f\u4f1a\u653e\u5927\u7f51\u7edc\u5ef6\u8fdf\u5e26\u6765\u7684\u6027\u80fd\u635f\u8017<\/p>\n
\u4e5d\u3001\u89e3\u51b3\u7c98\u5305\u7684\u8fdb\u9636\u65b9\u6cd5<\/h2>\n
\u4e3a\u5b57\u8282\u6d41\u52a0\u4e0a\u81ea\u5b9a\u4e49\u56fa\u5b9a\u957f\u5ea6\u62a5\u5934\uff0c\u62a5\u5934\u4e2d\u5305\u542b\u5b57\u8282\u6d41\u957f\u5ea6\uff0c\u7136\u540e\u4e00\u6b21send\u5230\u5bf9\u7aef\uff0c\u5bf9\u7aef\u5728\u63a5\u6536\u65f6\uff0c\u5148\u4ece\u7f13\u5b58\u4e2d\u53d6\u51fa\u5b9a\u957f\u7684\u62a5\u5934\uff0c\u7136\u540e\u518d\u53d6\u771f\u5b9e\u6570\u636e<\/p>\n
*struct\u6a21\u5757*<\/em><\/strong><\/p>\n
\u8be5\u6a21\u5757\u53ef\u4ee5\u628a\u4e00\u4e2a\u7c7b\u578b\uff0c\u5982\u6570\u5b57\uff0c\u8f6c\u6210\u56fa\u5b9a\u957f\u5ea6\u7684bytes<\/p>\n
>>> struct.pack(\u2018i\u2019,1111111111111)<\/p>\n
\u3002\u3002\u3002\u3002\u3002\u3002\u3002\u3002\u3002<\/p>\n
struct.error: \u2018i\u2019 format requires -2147483648 <= number <= 2147483647 #\u8fd9\u4e2a\u662f\u8303\u56f4<\/p>\n
\"\"<\/div><\/p>\n
import json,struct\n#\u5047\u8bbe\u901a\u8fc7\u5ba2\u6237\u7aef\u4e0a\u4f201T:1073741824000\u7684\u6587\u4ef6a.txt\n\n#\u4e3a\u907f\u514d\u7c98\u5305,\u5fc5\u987b\u81ea\u5b9a\u5236\u62a5\u5934\nheader={'file_size':1073741824000,'file_name':'\/a\/b\/c\/d\/e\/a.txt','md5':'8f6fbf8347faa4924a76856701edb0f3'} #1T\u6570\u636e,\u6587\u4ef6\u8def\u5f84\u548cmd5\u503c\n\n#\u4e3a\u4e86\u8be5\u62a5\u5934\u80fd\u4f20\u9001,\u9700\u8981\u5e8f\u5217\u5316\u5e76\u4e14\u8f6c\u4e3abytes\nhead_bytes=bytes(json.dumps(header),encoding='utf-8') #\u5e8f\u5217\u5316\u5e76\u8f6c\u6210bytes,\u7528\u4e8e\u4f20\u8f93\n\n#\u4e3a\u4e86\u8ba9\u5ba2\u6237\u7aef\u77e5\u9053\u62a5\u5934\u7684\u957f\u5ea6,\u7528struck\u5c06\u62a5\u5934\u957f\u5ea6\u8fd9\u4e2a\u6570\u5b57\u8f6c\u6210\u56fa\u5b9a\u957f\u5ea6:4\u4e2a\u5b57\u8282\nhead_len_bytes=struct.pack('i',len(head_bytes)) #\u8fd94\u4e2a\u5b57\u8282\u91cc\u53ea\u5305\u542b\u4e86\u4e00\u4e2a\u6570\u5b57,\u8be5\u6570\u5b57\u662f\u62a5\u5934\u7684\u957f\u5ea6\n\n#\u5ba2\u6237\u7aef\u5f00\u59cb\u53d1\u9001\nconn.send(head_len_bytes) #\u5148\u53d1\u62a5\u5934\u7684\u957f\u5ea6,4\u4e2abytes\nconn.send(head_bytes) #\u518d\u53d1\u62a5\u5934\u7684\u5b57\u8282\u683c\u5f0f\nconn.sendall(\u6587\u4ef6\u5185\u5bb9) #\u7136\u540e\u53d1\u771f\u5b9e\u5185\u5bb9\u7684\u5b57\u8282\u683c\u5f0f\n\n#\u670d\u52a1\u7aef\u5f00\u59cb\u63a5\u6536\nhead_len_bytes=s.recv(4) #\u5148\u6536\u62a5\u59344\u4e2abytes,\u5f97\u5230\u62a5\u5934\u957f\u5ea6\u7684\u5b57\u8282\u683c\u5f0f\nx=struct.unpack('i',head_len_bytes)[0] #\u63d0\u53d6\u62a5\u5934\u7684\u957f\u5ea6\n\nhead_bytes=s.recv(x) #\u6309\u7167\u62a5\u5934\u957f\u5ea6x,\u6536\u53d6\u62a5\u5934\u7684bytes\u683c\u5f0f\nheader=json.loads(json.dumps(header)) #\u63d0\u53d6\u62a5\u5934\n\n#\u6700\u540e\u6839\u636e\u62a5\u5934\u7684\u5185\u5bb9\u63d0\u53d6\u771f\u5b9e\u7684\u6570\u636e,\u6bd4\u5982\nreal_data_len=s.recv(header['file_size'])\ns.recv(real_data_len)<\/code><\/pre>\n
\u5173\u4e8estruct\u7684\u8be6\u7ec6\u7528\u6cd5<\/p>\n
#_*_coding:utf-8_*_\n#http:\/\/www.cnblogs.com\/coser\/archive\/2011\/12\/17\/2291160.html\n__author__ = 'Linhaifeng'\nimport struct\nimport binascii\nimport ctypes\n\nvalues1 = (1, 'abc'.encode('utf-8'), 2.7)\nvalues2 = ('defg'.encode('utf-8'),101)\ns1 = struct.Struct('I3sf')\ns2 = struct.Struct('4sI')\n\nprint(s1.size,s2.size)\nprebuffer=ctypes.create_string_buffer(s1.size+s2.size)\nprint('Before : ',binascii.hexlify(prebuffer))\n# t=binascii.hexlify('asdfaf'.encode('utf-8'))\n# print(t)\n\ns1.pack_into(prebuffer,0,*values1)\ns2.pack_into(prebuffer,s1.size,*values2)\n\nprint('After pack',binascii.hexlify(prebuffer))\nprint(s1.unpack_from(prebuffer,0))\nprint(s2.unpack_from(prebuffer,s1.size))\n\ns3=struct.Struct('ii')\ns3.pack_into(prebuffer,0,123,123)\nprint('After pack',binascii.hexlify(prebuffer))\nprint(s3.unpack_from(prebuffer,0))<\/code><\/pre>\n
\u670d\u52a1\u7aef\uff08\u81ea\u5b9a\u5236\u62a5\u5934\uff09<\/p>\n
import socket,struct,json\nimport subprocess\nphone=socket.socket(socket.AF_INET,socket.SOCK_STREAM)\nphone.setsockopt(socket.SOL_SOCKET,socket.SO_REUSEADDR,1) #\u5c31\u662f\u5b83\uff0c\u5728bind\u524d\u52a0\n\nphone.bind(('127.0.0.1',8080))\n\nphone.listen(5)\n\nwhile True:\n    conn,addr=phone.accept()\n    while True:\n        cmd=conn.recv(1024)\n        if not cmd:break\n        print('cmd: %s' %cmd)\n\n        res=subprocess.Popen(cmd.decode('utf-8'),\n                             shell=True,\n                             stdout=subprocess.PIPE,\n                             stderr=subprocess.PIPE)\n        err=res.stderr.read()\n        print(err)\n        if err:\n            back_msg=err\n        else:\n            back_msg=res.stdout.read()\n\n        conn.send(struct.pack('i',len(back_msg))) #\u5148\u53d1back_msg\u7684\u957f\u5ea6\n        conn.sendall(back_msg) #\u5728\u53d1\u771f\u5b9e\u7684\u5185\u5bb9\n\n    conn.close()<\/code><\/pre>\n
\u5ba2\u6237\u7aef\uff08\u81ea\u5b9a\u5236\u62a5\u5934\uff09<\/p>\n
#_*_coding:utf-8_*_\n__author__ = 'Linhaifeng'\nimport socket,time,struct\n\ns=socket.socket(socket.AF_INET,socket.SOCK_STREAM)\nres=s.connect_ex(('127.0.0.1',8080))\n\nwhile True:\n    msg=input('>>: ').strip()\n    if len(msg) == 0:continue\n    if msg == 'quit':break\n\n    s.send(msg.encode('utf-8'))\n\n    l=s.recv(4)\n    x=struct.unpack('i',l)[0]\n    print(type(x),x)\n    # print(struct.unpack('I',l))\n    r_s=0\n    data=b''\n    while r_s < x:\n        r_d=s.recv(1024)\n        data+=r_d\n        r_s+=len(r_d)\n\n    # print(data.decode('utf-8'))\n    print(data.decode('gbk')) #windows\u9ed8\u8ba4gbk\u7f16\u7801<\/code><\/pre>\n
\u6211\u4eec\u53ef\u4ee5\u628a\u62a5\u5934\u505a\u6210\u5b57\u5178\uff0c\u5b57\u5178\u91cc\u5305\u542b\u5c06\u8981\u53d1\u9001\u7684\u771f\u5b9e\u6570\u636e\u7684\u8be6\u7ec6\u4fe1\u606f\uff0c\u7136\u540ejson\u5e8f\u5217\u5316\uff0c\u7136\u540e\u7528struck\u5c06\u5e8f\u5217\u5316\u540e\u7684\u6570\u636e\u957f\u5ea6\u6253\u5305\u62104\u4e2a\u5b57\u8282\uff084\u4e2a\u81ea\u5df1\u8db3\u591f\u7528\u4e86\uff09<\/p>\n
\u53d1\u9001\u65f6\uff1a<\/p>\n
\u5148\u53d1\u62a5\u5934\u957f\u5ea6<\/p>\n
\u518d\u7f16\u7801\u62a5\u5934\u5185\u5bb9\u7136\u540e\u53d1\u9001<\/p>\n
\u6700\u540e\u53d1\u771f\u5b9e\u5185\u5bb9<\/p>\n
\u63a5\u6536\u65f6\uff1a<\/p>\n
\u5148\u624b\u62a5\u5934\u957f\u5ea6\uff0c\u7528struct\u53d6\u51fa\u6765<\/p>\n
\u6839\u636e\u53d6\u51fa\u7684\u957f\u5ea6\u6536\u53d6\u62a5\u5934\u5185\u5bb9\uff0c\u7136\u540e\u89e3\u7801\uff0c\u53cd\u5e8f\u5217\u5316<\/p>\n
\u4ece\u53cd\u5e8f\u5217\u5316\u7684\u7ed3\u679c\u4e2d\u53d6\u51fa\u5f85\u53d6\u6570\u636e\u7684\u8be6\u7ec6\u4fe1\u606f\uff0c\u7136\u540e\u53bb\u53d6\u771f\u5b9e\u7684\u6570\u636e\u5185\u5bb9<\/p>\n
\u670d\u52a1\u7aef\uff1a\u5b9a\u5236\u7a0d\u5fae\u590d\u6742\u4e00\u70b9\u7684\u62a5\u5934<\/p>\n
import socket,struct,json\nimport subprocess\nphone=socket.socket(socket.AF_INET,socket.SOCK_STREAM)\nphone.setsockopt(socket.SOL_SOCKET,socket.SO_REUSEADDR,1) #\u5c31\u662f\u5b83\uff0c\u5728bind\u524d\u52a0\n\nphone.bind(('127.0.0.1',8080))\n\nphone.listen(5)\n\nwhile True:\n    conn,addr=phone.accept()\n    while True:\n        cmd=conn.recv(1024)\n        if not cmd:break\n        print('cmd: %s' %cmd)\n\n        res=subprocess.Popen(cmd.decode('utf-8'),\n                             shell=True,\n                             stdout=subprocess.PIPE,\n                             stderr=subprocess.PIPE)\n        err=res.stderr.read()\n        print(err)\n        if err:\n            back_msg=err\n        else:\n            back_msg=res.stdout.read()\n\n        headers={'data_size':len(back_msg)}\n        head_json=json.dumps(headers)\n        head_json_bytes=bytes(head_json,encoding='utf-8')\n\n        conn.send(struct.pack('i',len(head_json_bytes))) #\u5148\u53d1\u62a5\u5934\u7684\u957f\u5ea6\n        conn.send(head_json_bytes) #\u518d\u53d1\u62a5\u5934\n        conn.sendall(back_msg) #\u5728\u53d1\u771f\u5b9e\u7684\u5185\u5bb9\n\n    conn.close()<\/code><\/pre>\n
\u5ba2\u6237\u7aef<\/p>\n
from socket import *\nimport struct,json\n\nip_port=('127.0.0.1',8080)\nclient=socket(AF_INET,SOCK_STREAM)\nclient.connect(ip_port)\n\nwhile True:\n    cmd=input('>>: ')\n    if not cmd:continue\n    client.send(bytes(cmd,encoding='utf-8'))\n\n    head=client.recv(4)\n    head_json_len=struct.unpack('i',head)[0]\n    head_json=json.loads(client.recv(head_json_len).decode('utf-8'))\n    data_len=head_json['data_size']\n\n    recv_size=0\n    recv_data=b''\n    while recv_size < data_len:\n        recv_data+=client.recv(1024)\n        recv_size+=len(recv_data)\n\n    print(recv_data.decode('utf-8'))\n    #print(recv_data.decode('gbk')) #windows\u9ed8\u8ba4gbk\u7f16\u7801<\/code><\/pre>\n
*FTP\u4f5c\u4e1a\uff1a\u4e0a\u4f20\u4e0b\u8f7d\u6587\u4ef6*<\/em><\/strong><\/p>\n
\u670d\u52a1\u7aef<\/p>\n
import socket\nimport struct\nimport json\nimport subprocess\nimport os\n\nclass MYTCPServer:\n    address_family = socket.AF_INET\n\n    socket_type = socket.SOCK_STREAM\n\n    allow_reuse_address = False\n\n    max_packet_size = 8192\n\n    coding='utf-8'\n\n    request_queue_size = 5\n\n    server_dir='file_upload'\n\n    def __init__(self, server_address, bind_and_activate=True):\n        """Constructor.  May be extended, do not override."""\n        self.server_address=server_address\n        self.socket = socket.socket(self.address_family,\n                                    self.socket_type)\n        if bind_and_activate:\n            try:\n                self.server_bind()\n                self.server_activate()\n            except:\n                self.server_close()\n                raise\n\n    def server_bind(self):\n        """Called by constructor to bind the socket.\n        """\n        if self.allow_reuse_address:\n            self.socket.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)\n        self.socket.bind(self.server_address)\n        self.server_address = self.socket.getsockname()\n\n    def server_activate(self):\n        """Called by constructor to activate the server.\n        """\n        self.socket.listen(self.request_queue_size)\n\n    def server_close(self):\n        """Called to clean-up the server.\n        """\n        self.socket.close()\n\n    def get_request(self):\n        """Get the request and client address from the socket.\n        """\n        return self.socket.accept()\n\n    def close_request(self, request):\n        """Called to clean up an individual request."""\n        request.close()\n\n    def run(self):\n        while True:\n            self.conn,self.client_addr=self.get_request()\n            print('from client ',self.client_addr)\n            while True:\n                try:\n                    head_struct = self.conn.recv(4)\n                    if not head_struct:break\n\n                    head_len = struct.unpack('i', head_struct)[0]\n                    head_json = self.conn.recv(head_len).decode(self.coding)\n                    head_dic = json.loads(head_json)\n\n                    print(head_dic)\n                    #head_dic={'cmd':'put','filename':'a.txt','filesize':123123}\n                    cmd=head_dic['cmd']\n                    if hasattr(self,cmd):\n                        func=getattr(self,cmd)\n                        func(head_dic)\n                except Exception:\n                    break\n\n    def put(self,args):\n        file_path=os.path.normpath(os.path.join(\n            self.server_dir,\n            args['filename']\n        ))\n\n        filesize=args['filesize']\n        recv_size=0\n        print('----->',file_path)\n        with open(file_path,'wb') as f:\n            while recv_size < filesize:\n                recv_data=self.conn.recv(self.max_packet_size)\n                f.write(recv_data)\n                recv_size+=len(recv_data)\n                print('recvsize:%s filesize:%s' %(recv_size,filesize))\n\ntcpserver1=MYTCPServer(('127.0.0.1',8080))\n\ntcpserver1.run()<\/code><\/pre>\n
\u5ba2\u6237\u7aef<\/p>\n
import socket\nimport struct\nimport json\nimport os\n\nclass MYTCPClient:\n    address_family = socket.AF_INET\n\n    socket_type = socket.SOCK_STREAM\n\n    allow_reuse_address = False\n\n    max_packet_size = 8192\n\n    coding='utf-8'\n\n    request_queue_size = 5\n\n    def __init__(self, server_address, connect=True):\n        self.server_address=server_address\n        self.socket = socket.socket(self.address_family,\n                                    self.socket_type)\n        if connect:\n            try:\n                self.client_connect()\n            except:\n                self.client_close()\n                raise\n\n    def client_connect(self):\n        self.socket.connect(self.server_address)\n\n    def client_close(self):\n        self.socket.close()\n\n    def run(self):\n        while True:\n            inp=input(">>: ").strip()\n            if not inp:continue\n            l=inp.split()\n            cmd=l[0]\n            if hasattr(self,cmd):\n                func=getattr(self,cmd)\n                func(l)\n\n    def put(self,args):\n        cmd=args[0]\n        filename=args[1]\n        if not os.path.isfile(filename):\n            print('file:%s is not exists' %filename)\n            return\n        else:\n            filesize=os.path.getsize(filename)\n\n        head_dic={'cmd':cmd,'filename':os.path.basename(filename),'filesize':filesize}\n        print(head_dic)\n        head_json=json.dumps(head_dic)\n        head_json_bytes=bytes(head_json,encoding=self.coding)\n\n        head_struct=struct.pack('i',len(head_json_bytes))\n        self.socket.send(head_struct)\n        self.socket.send(head_json_bytes)\n        send_size=0\n        with open(filename,'rb') as f:\n            for line in f:\n                self.socket.send(line)\n                send_size+=len(line)\n                print(send_size)\n            else:\n                print('upload successful')\n\nclient=MYTCPClient(('127.0.0.1',8080))\n\nclient.run()<\/code><\/pre>\n
\u5341\u3001\u8ba4\u8bc1\u5ba2\u6237\u7aef\u7684\u94fe\u63a5\u5408\u6cd5\u6027<\/h2>\n
\u5982\u679c\u4f60\u60f3\u5728\u5206\u5e03\u5f0f\u7cfb\u7edf\u4e2d\u5b9e\u73b0\u4e00\u4e2a\u7b80\u5355\u7684\u5ba2\u6237\u7aef\u94fe\u63a5\u8ba4\u8bc1\u529f\u80fd\uff0c\u53c8\u4e0d\u50cfSSL\u90a3\u4e48\u590d\u6742\uff0c\u90a3\u4e48\u5229\u7528hmac+\u52a0\u76d0\u7684\u65b9\u5f0f\u6765\u5b9e\u73b0<\/p>\n
\u670d\u52a1\u7aef<\/p>\n
#_*_coding:utf-8_*_\n__author__ = 'Linhaifeng'\nfrom socket import *\nimport hmac,os\n\nsecret_key=b'linhaifeng bang bang bang'\ndef conn_auth(conn):\n    '''\n    \u8ba4\u8bc1\u5ba2\u6237\u7aef\u94fe\u63a5\n    :param conn:\n    :return:\n    '''\n    print('\u5f00\u59cb\u9a8c\u8bc1\u65b0\u94fe\u63a5\u7684\u5408\u6cd5\u6027')\n    msg=os.urandom(32)\n    conn.sendall(msg)\n    h=hmac.new(secret_key,msg)\n    digest=h.digest()\n    respone=conn.recv(len(digest))\n    return hmac.compare_digest(respone,digest)\n\ndef data_handler(conn,bufsize=1024):\n    if not conn_auth(conn):\n        print('\u8be5\u94fe\u63a5\u4e0d\u5408\u6cd5,\u5173\u95ed')\n        conn.close()\n        return\n    print('\u94fe\u63a5\u5408\u6cd5,\u5f00\u59cb\u901a\u4fe1')\n    while True:\n        data=conn.recv(bufsize)\n        if not data:break\n        conn.sendall(data.upper())\n\ndef server_handler(ip_port,bufsize,backlog=5):\n    '''\n    \u53ea\u5904\u7406\u94fe\u63a5\n    :param ip_port:\n    :return:\n    '''\n    tcp_socket_server=socket(AF_INET,SOCK_STREAM)\n    tcp_socket_server.bind(ip_port)\n    tcp_socket_server.listen(backlog)\n    while True:\n        conn,addr=tcp_socket_server.accept()\n        print('\u65b0\u8fde\u63a5[%s:%s]' %(addr[0],addr[1]))\n        data_handler(conn,bufsize)\n\nif __name__ == '__main__':\n    ip_port=('127.0.0.1',9999)\n    bufsize=1024\n    server_handler(ip_port,bufsize)<\/code><\/pre>\n
\u5ba2\u6237\u7aef(\u5408\u6cd5)<\/p>\n
#_*_coding:utf-8_*_\n__author__ = 'Linhaifeng'\nfrom socket import *\nimport hmac,os\n\nsecret_key=b'linhaifeng bang bang bang'\ndef conn_auth(conn):\n    '''\n    \u9a8c\u8bc1\u5ba2\u6237\u7aef\u5230\u670d\u52a1\u5668\u7684\u94fe\u63a5\n    :param conn:\n    :return:\n    '''\n    msg=conn.recv(32)\n    h=hmac.new(secret_key,msg)\n    digest=h.digest()\n    conn.sendall(digest)\n\ndef client_handler(ip_port,bufsize=1024):\n    tcp_socket_client=socket(AF_INET,SOCK_STREAM)\n    tcp_socket_client.connect(ip_port)\n\n    conn_auth(tcp_socket_client)\n\n    while True:\n        data=input('>>: ').strip()\n        if not data:continue\n        if data == 'quit':break\n\n        tcp_socket_client.sendall(data.encode('utf-8'))\n        respone=tcp_socket_client.recv(bufsize)\n        print(respone.decode('utf-8'))\n    tcp_socket_client.close()\n\nif __name__ == '__main__':\n    ip_port=('127.0.0.1',9999)\n    bufsize=1024\n    client_handler(ip_port,bufsize)<\/code><\/pre>\n
\u5ba2\u6237\u7aef(\u975e\u6cd5:\u4e0d\u77e5\u9053\u52a0\u5bc6\u65b9\u5f0f)<\/p>\n
#_*_coding:utf-8_*_\n__author__ = 'Linhaifeng'\nfrom socket import *\n\ndef client_handler(ip_port,bufsize=1024):\n    tcp_socket_client=socket(AF_INET,SOCK_STREAM)\n    tcp_socket_client.connect(ip_port)\n\n    while True:\n        data=input('>>: ').strip()\n        if not data:continue\n        if data == 'quit':break\n\n        tcp_socket_client.sendall(data.encode('utf-8'))\n        respone=tcp_socket_client.recv(bufsize)\n        print(respone.decode('utf-8'))\n    tcp_socket_client.close()\n\nif __name__ == '__main__':\n    ip_port=('127.0.0.1',9999)\n    bufsize=1024\n    client_handler(ip_port,bufsize)<\/code><\/pre>\n
\u5ba2\u6237\u7aef(\u975e\u6cd5:\u4e0d\u77e5\u9053secret_key)<\/p>\n
#_*_coding:utf-8_*_\n__author__ = 'Linhaifeng'\nfrom socket import *\nimport hmac,os\n\nsecret_key=b'linhaifeng bang bang bang1111'\ndef conn_auth(conn):\n    '''\n    \u9a8c\u8bc1\u5ba2\u6237\u7aef\u5230\u670d\u52a1\u5668\u7684\u94fe\u63a5\n    :param conn:\n    :return:\n    '''\n    msg=conn.recv(32)\n    h=hmac.new(secret_key,msg)\n    digest=h.digest()\n    conn.sendall(digest)\n\ndef client_handler(ip_port,bufsize=1024):\n    tcp_socket_client=socket(AF_INET,SOCK_STREAM)\n    tcp_socket_client.connect(ip_port)\n\n    conn_auth(tcp_socket_client)\n\n    while True:\n        data=input('>>: ').strip()\n        if not data:continue\n        if data == 'quit':break\n\n        tcp_socket_client.sendall(data.encode('utf-8'))\n        respone=tcp_socket_client.recv(bufsize)\n        print(respone.decode('utf-8'))\n    tcp_socket_client.close()\n\nif __name__ == '__main__':\n    ip_port=('127.0.0.1',9999)\n    bufsize=1024\n    client_handler(ip_port,bufsize)<\/code><\/pre>\n
\u5341\u4e00\u3001socketserver\u5b9e\u73b0\u5e76\u53d1<\/h2>\n
\u57fa\u4e8etcp\u7684\u5957\u63a5\u5b57\uff0c\u5173\u952e\u5c31\u662f\u4e24\u4e2a\u5faa\u73af\uff0c\u4e00\u4e2a\u94fe\u63a5\u5faa\u73af\uff0c\u4e00\u4e2a\u901a\u4fe1\u5faa\u73af<\/p>\n
socketserver\u6a21\u5757\u4e2d\u5206\u4e24\u5927\u7c7b\uff1aserver\u7c7b\uff08\u89e3\u51b3\u94fe\u63a5\u95ee\u9898\uff09\u548crequest\u7c7b\uff08\u89e3\u51b3\u901a\u4fe1\u95ee\u9898\uff09<\/p>\n
server\u7c7b\uff1a
\n
\"\"<\/div><\/p>\n
request\u7c7b\uff1a<\/p>\n
\"\"<\/div><\/p>\n
\u7ee7\u627f\u5173\u7cfb:<\/p>\n
\"\"<\/div><\/p>\n
img<\/em><\/p>\n
\"\"<\/div><\/p>\n
img<\/em><\/p>\n
\"\"<\/div>
\nimg<\/em><\/p>\n
\u4ee5\u4e0b\u8ff0\u4ee3\u7801\u4e3a\u4f8b\uff0c\u5206\u6790socketserver\u6e90\u7801\uff1a<\/p>\n
ftpserver=<\/strong>socketserver.ThreadingTCPServer((‘127.0.0.1’<\/strong>,8080<\/strong>),FtpServer)<\/em>
\nftpserver.serve_forever()<\/em><\/p>\n
\u67e5\u627e\u5c5e\u6027\u7684\u987a\u5e8f\uff1aThreadingTCPServer->ThreadingMixIn->TCPServer->BaseServer<\/p>\n
\u5b9e\u4f8b\u5316\u5f97\u5230ftpserver\uff0c\u5148\u627e\u7c7bThreadingTCPServer\u7684*init*<\/em><\/strong>,\u5728TCPServer\u4e2d\u627e\u5230\uff0c\u8fdb\u800c\u6267\u884cserver_bind,server_active<\/p>\n
\u627eftpserver\u4e0b\u7684serve_forever,\u5728BaseServer\u4e2d\u627e\u5230\uff0c\u8fdb\u800c\u6267\u884cself._handle_request_noblock()\uff0c\u8be5\u65b9\u6cd5\u540c\u6837\u662f\u5728BaseServer\u4e2d<\/p>\n
\u6267\u884cself._handle_request_noblock()\u8fdb\u800c\u6267\u884crequest, client_address = self.get_request()\uff08\u5c31\u662fTCPServer\u4e2d\u7684self.socket.accept()\uff09\uff0c\u7136\u540e\u6267\u884cself.process_request(request, client_address)<\/p>\n
\u5728ThreadingMixIn\u4e2d\u627e\u5230process_request\uff0c\u5f00\u542f\u591a\u7ebf\u7a0b\u5e94\u5bf9\u5e76\u53d1\uff0c\u8fdb\u800c\u6267\u884cprocess_request_thread\uff0c\u6267\u884cself.finish_request(request, client_address)<\/p>\n
\u4e0a\u8ff0\u56db\u90e8\u5206\u5b8c\u6210\u4e86\u94fe\u63a5\u5faa\u73af\uff0c\u672c\u90e8\u5206\u5f00\u59cb\u8fdb\u5165\u5904\u7406\u901a\u8baf\u90e8\u5206\uff0c\u5728BaseServer\u4e2d\u627e\u5230finish_request,\u89e6\u53d1\u6211\u4eec\u81ea\u5df1\u5b9a\u4e49\u7684\u7c7b\u7684\u5b9e\u4f8b\u5316\uff0c\u53bb\u627e*init*<\/em><\/strong>\u65b9\u6cd5\uff0c\u800c\u6211\u4eec\u81ea\u5df1\u5b9a\u4e49\u7684\u7c7b\u6ca1\u6709\u8be5\u65b9\u6cd5\uff0c\u5219\u53bb\u5b83\u7684\u7236\u7c7b\u4e5f\u5c31\u662fBaseRequestHandler\u4e2d\u627e\u2026.<\/p>\n
\u6e90\u7801\u5206\u6790\u603b\u7ed3\uff1a<\/p>\n
\u57fa\u4e8etcp\u7684socketserver\u6211\u4eec\u81ea\u5df1\u5b9a\u4e49\u7684\u7c7b\u4e2d\u7684<\/p>\n
self.server\u5373\u5957\u63a5\u5b57\u5bf9\u8c61<\/p>\n
self.request\u5373\u4e00\u4e2a\u94fe\u63a5<\/p>\n
self.client_address\u5373\u5ba2\u6237\u7aef\u5730\u5740<\/p>\n
\u57fa\u4e8eudp\u7684socketserver\u6211\u4eec\u81ea\u5df1\u5b9a\u4e49\u7684\u7c7b\u4e2d\u7684<\/p>\n
self.request\u662f\u4e00\u4e2a\u5143\u7ec4\uff08\u7b2c\u4e00\u4e2a\u5143\u7d20\u662f\u5ba2\u6237\u7aef\u53d1\u6765\u7684\u6570\u636e\uff0c\u7b2c\u4e8c\u90e8\u5206\u662f\u670d\u52a1\u7aef\u7684udp\u5957\u63a5\u5b57\u5bf9\u8c61\uff09\uff0c\u5982(b\u2019adsf\u2019, )<\/p>\n
self.client_address\u5373\u5ba2\u6237\u7aef\u5730\u5740<\/p>\n
FtpServer<\/p>\n
import socketserver\nimport struct\nimport json\nimport os\nclass FtpServer(socketserver.BaseRequestHandler):\n    coding='utf-8'\n    server_dir='file_upload'\n    max_packet_size=1024\n    BASE_DIR=os.path.dirname(os.path.abspath(__file__))\n    def handle(self):\n        print(self.request)\n        while True:\n            data=self.request.recv(4)\n            data_len=struct.unpack('i',data)[0]\n            head_json=self.request.recv(data_len).decode(self.coding)\n            head_dic=json.loads(head_json)\n            # print(head_dic)\n            cmd=head_dic['cmd']\n            if hasattr(self,cmd):\n                func=getattr(self,cmd)\n                func(head_dic)\n    def put(self,args):\n        file_path = os.path.normpath(os.path.join(\n            self.BASE_DIR,\n            self.server_dir,\n            args['filename']\n        ))\n\n        filesize = args['filesize']\n        recv_size = 0\n        print('----->', file_path)\n        with open(file_path, 'wb') as f:\n            while recv_size < filesize:\n                recv_data = self.request.recv(self.max_packet_size)\n                f.write(recv_data)\n                recv_size += len(recv_data)\n                print('recvsize:%s filesize:%s' % (recv_size, filesize))\n\nftpserver=socketserver.ThreadingTCPServer(('127.0.0.1',8080),FtpServer)\nftpserver.serve_forever()<\/code><\/pre>\n
FtpClient<\/p>\n
import socket\nimport struct\nimport json\nimport os\n\nclass MYTCPClient:\n    address_family = socket.AF_INET\n\n    socket_type = socket.SOCK_STREAM\n\n    allow_reuse_address = False\n\n    max_packet_size = 8192\n\n    coding='utf-8'\n\n    request_queue_size = 5\n\n    def __init__(self, server_address, connect=True):\n        self.server_address=server_address\n        self.socket = socket.socket(self.address_family,\n                                    self.socket_type)\n        if connect:\n            try:\n                self.client_connect()\n            except:\n                self.client_close()\n                raise\n\n    def client_connect(self):\n        self.socket.connect(self.server_address)\n\n    def client_close(self):\n        self.socket.close()\n\n    def run(self):\n        while True:\n            inp=input(">>: ").strip()\n            if not inp:continue\n            l=inp.split()\n            cmd=l[0]\n            if hasattr(self,cmd):\n                func=getattr(self,cmd)\n                func(l)\n\n    def put(self,args):\n        cmd=args[0]\n        filename=args[1]\n        if not os.path.isfile(filename):\n            print('file:%s is not exists' %filename)\n            return\n        else:\n            filesize=os.path.getsize(filename)\n\n        head_dic={'cmd':cmd,'filename':os.path.basename(filename),'filesize':filesize}\n        print(head_dic)\n        head_json=json.dumps(head_dic)\n        head_json_bytes=bytes(head_json,encoding=self.coding)\n\n        head_struct=struct.pack('i',len(head_json_bytes))\n        self.socket.send(head_struct)\n        self.socket.send(head_json_bytes)\n        send_size=0\n        with open(filename,'rb') as f:\n            for line in f:\n                self.socket.send(line)\n                send_size+=len(line)\n                print(send_size)\n            else:\n                print('upload successful')\n\nclient=MYTCPClient(('127.0.0.1',8080))\n\nclient.run()<\/code><\/pre>\n
\u5173\u4e8e\u5e76\u53d1\u7684\u6982\u5ff5,\u6211\u4eec\u5c06\u4f1a\u5728\u4e0b\u4e00\u7ae0\u4e2d\u8fdb\u884c\u66f4\u8be6\u7ec6\u7684\u8bb2\u8ff0<\/p>\n","protected":false},"excerpt":{"rendered":"
\u7f51\u7edc\u7f16\u7a0b \u4e00\u3001\u64cd\u4f5c\u7cfb\u7edf\u57fa\u7840 \u64cd\u4f5c\u7cfb\u7edf\uff1a\uff08Operating System\uff0c\u7b80\u79f0OS\uff09\u662f\u7ba1\u7406\u548c\u63a7\u5236\u8ba1\u7b97\u673a\u786c\u4ef6\u4e0e\u8f6f […]<\/p>\n","protected":false},"author":3,"featured_media":6725,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[3,281,370],"tags":[],"_links":{"self":[{"href":"https:\/\/egonlin.com\/index.php?rest_route=\/wp\/v2\/posts\/4870"}],"collection":[{"href":"https:\/\/egonlin.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/egonlin.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/egonlin.com\/index.php?rest_route=\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/egonlin.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=4870"}],"version-history":[{"count":0,"href":"https:\/\/egonlin.com\/index.php?rest_route=\/wp\/v2\/posts\/4870\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/egonlin.com\/index.php?rest_route=\/wp\/v2\/media\/6725"}],"wp:attachment":[{"href":"https:\/\/egonlin.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=4870"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/egonlin.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=4870"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/egonlin.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=4870"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}