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class=\"wp-block-heading\">\u5e94\u7528\u5c42\u534f\u8bae<\/h2>\n\n\n\n<p>\u5e94\u7528\u5c42\u534f\u8bae\u5b9a\u4e49\u4e86\u8fd0\u884c\u5728\u4e0d\u540c\u7aef\u7cfb\u7edf\u4e0a\u7684\u5e94\u7528\u7a0b\u5e8f\u5982\u4f55\u76f8\u4e92\u4f20\u9012\u62a5\u6587\uff0c\u5b9a\u4e49\u4e86\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u4ea4\u6362\u7684\u62a5\u6587\u7c7b\u578b\uff08\u8bf7\u6c42\u62a5\u6587\u548c\u54cd\u5e94\u62a5\u6587\uff09<\/li>\n\n\n\n<li>\u5404\u79cd\u62a5\u6587\u7684\u8bed\u6cd5<\/li>\n\n\n\n<li>\u5b57\u6bb5\u7684\u8bed\u4e49<\/li>\n\n\n\n<li>\u786e\u5b9a\u4e00\u4e2a\u8fdb\u7a0b\u4f55\u65f6\u4ee5\u53ca\u5982\u4f55\u53d1\u9001\u62a5\u6587\uff0c\u5bf9\u62a5\u6587\u54cd\u5e94\u7684\u89c4\u5219<\/li>\n\n\n\n<li>\u5f88\u591a\u5e94\u7528\u5c42\u534f\u8bae\u662f\u7531RFC\u6587\u6863\u5b9a\u4e49\u7684<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">HTTP<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Web\u7684\u5e94\u7528\u5c42\u534f\u8bae\u662f<strong>\u8d85\u6587\u672c\u4f20\u8f93\u534f\u8bae<\/strong>\uff08HTTP\uff09\u5b83\u662fWeb\u7684\u6838\u5fc3\u3002<\/li>\n\n\n\n<li>Web\u7531\u4e24\u4e2a\u7a0b\u5e8f\u5b9e\u73b0\uff1a\u4e00\u4e2a\u5ba2\u6237\u7aef\u7a0b\u5e8f\u548c\u4e00\u4e2a\u670d\u52a1\u5668\u7a0b\u5e8f<\/li>\n\n\n\n<li>HTTP\u5b9a\u4e49\u4e86Web\u5ba2\u6237\u5411Web\u670d\u52a1\u5668\u8bf7\u6c42Web\u9875\u9762\u7684\u65b9\u5f0f\uff0c\u4ee5\u53ca\u670d\u52a1\u5668\u5411\u5ba2\u6237\u7aef\u4f20\u9001Web\u7684\u65b9\u5f0f<\/li>\n\n\n\n<li>HTTP\u4f7f\u7528<strong>TCP<\/strong>\u4f5c\u4e3a\u5b83\u7684\u8fd0\u8f93\u5c42\u534f\u8bae<\/li>\n\n\n\n<li>HTTP\u4e0d\u7528\u62c5\u5fc3\u6570\u636e\u4e22\u5931\uff0c\u4e5f\u4e0d\u5173\u6ce8TCP\u7684\u7ec6\u8282<\/li>\n\n\n\n<li>HTTP\u4e0d\u4fdd\u5b58\u4efb\u4f55\u5173\u4e8e\u5ba2\u6237\u7684\u4fe1\u606f\uff0c\u6240\u4ee5HTTP\u662f\u4e00\u4e2a<strong>\u65e0\u72b6\u6001\u534f\u8bae<\/strong><\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">\u6301\u7eed\u8fde\u63a5\u548c\u975e\u6301\u7eed\u8fde\u63a5<\/h3>\n\n\n\n<h3 class=\"wp-block-heading\">HTTP\u62a5\u6587\u683c\u5f0f<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\">\u8bf7\u6c42\u62a5\u6587<\/h4>\n\n\n\n<pre class=\"wp-block-preformatted\">GET \/ somedir\/page.html HTTP\/1.1\nHost:www.someschool.edu\nConnection:close\nUser-agent:Mozilla\/5.0\nAccept-language:fr<\/pre>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u7b2c\u4e00\u884c\u53eb\u505a\u8bf7\u6c42\u884c\uff0c\u5176\u540e\u7ee7\u7684\u884c\u53eb\u505a\u9996\u90e8\u884c<\/li>\n\n\n\n<li>\u8bf7\u6c42\u884c\u6709\u4e09\u4e2a\u5b57\u6bb5\uff1a\u65b9\u6cd5\u5b57\u6bb5\uff0cURL\u5b57\u6bb5\u548cHTTP\u7248\u672c\u5b57\u6bb5<\/li>\n\n\n\n<li>\u65b9\u6cd5\u5b57\u6bb5\u6709\u51e0\u79cd\u4e0d\u540c\u7684\u503c\uff0c\u5305\u62ecGET,POST,HEAD,PUT,DELETE<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\">\u54cd\u5e94\u62a5\u6587<\/h4>\n\n\n\n<pre class=\"wp-block-preformatted\">HTTP\/1.1 200 OK\nConnection: close\nDate:Tue,18 Aug 2015 15:44:04 GMT\nSever:Apache\/2.2.3(Cent OS)\nLast-Modified:Tue,18, Aug 2015 15:11:03 GMT\nContent-Length:6821\nContent-Type:text\/html\n(data data data...)<\/pre>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u4ed6\u6709\u4e09\u4e2a\u90e8\u5206\uff1a\u4e00\u4e2a\u521d\u59cb\u72b6\u6001\u884c\uff0c6\u4e2a\u9996\u90e8\u884c\uff0c\u7136\u540e\u662f\u5b9e\u4f53\u4f53<\/li>\n\n\n\n<li>Last-Modified\u9996\u90e8\u884c\u6307\u793a\u4e86\u5bf9\u8c61\u521b\u5efa\u6216\u8005\u6700\u540e\u4fee\u6539\u7684\u65e5\u671f\u548c\u65f6\u95f4<\/li>\n\n\n\n<li>Content-Length\u6307\u793a\u4e86\u88ab\u53d1\u9001\u5bf9\u8c61\u4e2d\u7684\u5b57\u8282\u6570<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\">\u5e38\u89c1\u72b6\u6001\u7801<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li>200 OK                                             \u8bf7\u6c42\u6210\u529f\uff0c\u4fe1\u606f\u5728\u8fd4\u56de\u7684\u54cd\u5e94\u62a5\u6587\u4e2d<\/li>\n\n\n\n<li>301 Moved Permanently                  \u8bf7\u6c42\u7684\u5bf9\u8c61\u5df2\u88ab\u6c38\u4e45\u8f6c\u79fb\u4e86<\/li>\n\n\n\n<li>400 Bad Request                               \u4e00\u4e2a\u901a\u7528\u5dee\u9519\u4ee3\u7801\uff0c\u6307\u793a\u8be5\u8bf7\u6c42\u4e0d\u80fd\u88ab\u670d\u52a1\u5668\u7406\u89e3<\/li>\n\n\n\n<li>404 Not Found                                 \u88ab\u8bf7\u6c42\u7684\u6587\u6863\u4e0d\u5728\u670d\u52a1\u5668\u4e0a<\/li>\n\n\n\n<li>505 HTTP Version Not Supported    \u670d\u52a1\u5668\u4e0d\u652f\u6301\u8bf7\u6c42\u62a5\u6587\u4f7f\u7528\u7684HTTP\u534f\u8bae\u7248\u672c<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">cookie<\/h3>\n\n\n\n<p>cookie\u662f\u4e3a\u4e86HTTP\u8bc6\u522b\u7528\u6237\u548c\u5c06\u5185\u5bb9\u548c\u7528\u6237\u8eab\u4efd\u8054\u7cfb\u8d77\u6765\uff0c\u5b83\u5141\u8bb8\u7ad9\u70b9\u5bf9\u7528\u6237\u8fdb\u884c\u8ddf\u8e2a<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">cookie\u56db\u4e2a\u7ec4\u4ef6<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5728HTTP\u54cd\u5e94\u62a5\u6587\u4e2d\u7684\u4e00\u4e2acookie\u9996\u90e8\u884c<\/li>\n\n\n\n<li>\u5728HTTP\u8bf7\u6c42\u62a5\u6587\u4e2d\u7684cookie\u9996\u90e8\u884c<\/li>\n\n\n\n<li>\u7528\u6237\u7aef\u7cfb\u7edf\u4e2d\u4fdd\u7559\u6709\u4e00\u4e2acookie\u6587\u4ef6\uff0c\u5e76\u7531\u6d4f\u89c8\u5668\u8fdb\u884c\u7ba1\u7406<\/li>\n\n\n\n<li>\u4f4d\u4e8eWeb\u7ad9\u70b9\u7684\u4e00\u4e2a\u540e\u7aef\u6570\u636e\u5e93<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Web\u7f13\u5b58<\/h3>\n\n\n\n<p><strong>Web\u7f13\u5b58<\/strong>\u4e5f\u53eb<strong>\u4ee3\u7406\u670d\u52a1\u5668<\/strong>\uff0c\u5b83\u662f\u80fd\u591f\u4ee3\u8868\u521d\u59cbWeb\u670d\u52a1\u5668\u6765\u6ee1\u8db3HTTP\u8bf7\u6c42\u7684\u7f51\u7edc\u5b9e\u4f53<\/p>\n\n\n\n<p>Web\u7f13\u5b58\u5668\u5373\u662f\u5ba2\u6237\u4e5f\u662f\u670d\u52a1\u5668<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">\u90e8\u7f72Web\u7f13\u5b58\u5668\u7684\u539f\u56e0<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Web\u7f13\u5b58\u5668\u53ef\u4ee5\u5927\u5927\u51cf\u5c11\u5bf9\u5ba2\u6237\u8bf7\u6c42\u7684\u54cd\u5e94\u65f6\u95f4\uff0c\u7279\u522b\u662f\u5ba2\u6237\u4e0e\u521d\u59cb\u670d\u52a1\u5668\u4e4b\u95f4\u7684\u74f6\u9888\u5e26\u5bbd\u8fdc\u4f4e\u4e8e\u5ba2\u6237\u4e0eWeb\u7f13\u5b58\u5668\u4e4b\u95f4\u7684\u74f6\u9888\u5e26\u5bbd\u65f6\u66f4\u662f\u5982\u6b64<\/li>\n\n\n\n<li>Web\u7f13\u5b58\u5668\u80fd\u591f\u5927\u5927\u51cf\u5c11\u4e00\u4e2a\u673a\u6784\u7684\u63a5\u5165\u94fe\u8def\u5230\u56e0\u7279\u7f51\u7684\u901a\u4fe1\u91cf <\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">\u6761\u4ef6GET\u65b9\u6cd5<\/h3>\n\n\n\n<p>HTTP\u6709\u4e00\u79cd\u673a\u5236\u5141\u8bb8\u7f13\u5b58\u7f13\u5b58\u5668\u8bc1\u5b9e\u5b83\u7684\u5bf9\u8c61\u662f\u6700\u65b0\u7684\uff0c\u8fd9\u79cd\u673a\u5236\u5c31\u662f\u6761\u4ef6GET\u65b9\u6cd5\uff0c\u5982\u679c<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u8bf7\u6c42\u62a5\u6587\u4f7f\u7528GET\u65b9\u6cd5<\/li>\n\n\n\n<li>\u8bf7\u6c42\u62a5\u6587\u4e2d\u5305\u542b\u4e00\u4e2a\"If-Modified-Since\"\u9996\u90e8\u884c\uff0c\u90a3\u4e48\uff0c\u8fd9\u4e2aHTTP\u8bf7\u6c42\u62a5\u6587\u5c31\u662f\u4e00\u4e2a\u6761\u4ef6GET\u8bf7\u6c42\u62a5\u6587<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">DNS<\/h2>\n\n\n\n<p>\u56e0\u7279\u7f51\u4e0a\u7684\u4e3b\u673a\u548c\u4eba\u7c7b\u4e00\u6837\uff0c\u53ef\u4ee5\u4f7f\u7528\u591a\u79cd\u65b9\u5f0f\u8fdb\u884c\u6807\u8bc6\u3002\u4e3b\u673a\u7684\u4e00\u79cd\u6807\u8bc6\u65b9\u6cd5\u662f\u7528\u5b83\u7684<strong>\u4e3b\u673a\u540d<em>hostname<\/em><\/strong><\/p>\n\n\n\n<p>\u4e3b\u673a\u540d\u4e5f\u53ef\u4ee5\u4f7f\u7528<strong>IP\u5730\u5740<\/strong>\u8fdb\u884c\u6807\u8bc6\u3002\u4e00\u4e2aIP\u5730\u5740\u6709\u56db\u4e2a\u5b57\u8282\u7ec4\u6210\uff0c\u5e76\u6709\u7740\u4e25\u683c\u7684\u5c42\u6b21\u7ed3\u6784<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">DNS\u63d0\u4f9b\u7684\u670d\u52a1<\/h4>\n\n\n\n<p>\u63d0\u4f9b\u4e3b\u673a\u540d\u5230IP\u5730\u5740\u8f6c\u6362\u7684\u76ee\u5f55\u670d\u52a1\u5c31\u662f<strong>\u57df\u540d\u7cfb\u7edfDNS<\/strong>\u7684\u4e3b\u8981\u4efb\u52a1<\/p>\n\n\n\n<p>DNS\u662f\uff1a<\/p>\n\n\n\n<ul 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