{"id":10923,"date":"2023-04-28T13:46:52","date_gmt":"2023-04-28T05:46:52","guid":{"rendered":"http:\/\/123.57.164.21\/?p=10923"},"modified":"2023-11-02T15:19:25","modified_gmt":"2023-11-02T07:19:25","slug":"http-header%e8%af%a6%e8%a7%a3%ef%bc%8chttp%e5%a4%b4%e3%80%81%e8%af%b7%e6%b1%82%e5%a4%b4%e3%80%81%e5%93%8d%e5%ba%94%e5%a4%b4%e3%80%81%e5%ae%9e%e4%bd%93%e5%a4%b4","status":"publish","type":"post","link":"https:\/\/92it.top\/?p=10923","title":{"rendered":"http header\u8be6\u89e3\uff0cHTTP\u5934\u3001\u8bf7\u6c42\u5934\u3001\u54cd\u5e94\u5934\u3001\u5b9e\u4f53\u5934"},"content":{"rendered":"\n<p><strong>\u524d\u8a00<\/strong><\/p>\n\n\n\n<hr class=\"wp-block-separator\"\/>\n\n\n\n<p>HTTP \u7684\u5168\u79f0\u662f HyperText Transfer Protocol (\u8d85\u6587\u672c\u4f20\u8f93\u534f\u8bae)\u7684\u7f29\u5199\uff0c\u662f\u4e00\u79cd\u5efa\u7acb\u5728 TCP \u4e0a\u7684\u65e0\u72b6\u6001\u8fde\u63a5\u3002HTTP \u662f\u4e92\u8054\u7f51\u7684<strong>\u57fa\u7840\u534f\u8bae<\/strong>\uff0c\u7528\u4e8e\u5ba2\u6237\u7aef\u4e0e\u670d\u52a1\u5668\u4e4b\u95f4\u7684\u901a\u4fe1\uff0c\u5b83\u89c4\u5b9a\u4e86\u5ba2\u6237\u7aef\u548c\u670d\u52a1\u5668\u4e4b\u95f4\u7684<strong>\u901a\u4fe1\u683c\u5f0f<\/strong>\uff0c\u5305\u62ec\u8bf7\u6c42\u4e0e\u54cd\u5e94\u7684\u683c\u5f0f\u3002<\/p>\n\n\n\n<p>\u57fa\u672c\u7684\u5de5\u4f5c\u6d41\u7a0b\u662f\u5ba2\u6237\u7aef\u53d1\u9001\u4e00\u4e2a HTTP \u8bf7\u6c42\uff0c\u670d\u52a1\u7aef\u6536\u5230\u8bf7\u6c42\u5f00\u59cb\u5904\u7406\uff0c\u5904\u7406\u7ed3\u675f\u8fd4\u56de\u7ed9\u5ba2\u6237\u7aef\u7ed3\u679c\uff0c\u5ba2\u6237\u7aef\u5bf9\u7ed3\u679c\u8fdb\u884c\u5904\u7406\u5e76\u5c55\u793a\u3002<\/p>\n\n\n\n<p>\u73b0\u5728\u6700\u6d41\u884c\u7684 HTTP \u7248\u672c\u8fd8\u662f 1997 \u5e74\u53d1\u5e03\u7684 HTTP\/1.1\u3002<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/92it.top\/wp-content\/uploads\/2023\/11\/\u56fe\u7247-2.png\" alt=\"\" class=\"wp-image-13155\" width=\"421\" height=\"152\" srcset=\"https:\/\/92it.top\/wp-content\/uploads\/2023\/11\/\u56fe\u7247-2.png 806w, https:\/\/92it.top\/wp-content\/uploads\/2023\/11\/\u56fe\u7247-2-300x109.png 300w, https:\/\/92it.top\/wp-content\/uploads\/2023\/11\/\u56fe\u7247-2-768x278.png 768w, https:\/\/92it.top\/wp-content\/uploads\/2023\/11\/\u56fe\u7247-2-230x83.png 230w, https:\/\/92it.top\/wp-content\/uploads\/2023\/11\/\u56fe\u7247-2-350x127.png 350w, https:\/\/92it.top\/wp-content\/uploads\/2023\/11\/\u56fe\u7247-2-480x174.png 480w\" sizes=\"(max-width: 421px) 100vw, 421px\" \/><\/figure><\/div>\n\n\n\n<p><strong>\u8bf7\u6c42\u8fc7\u7a0b<\/strong><\/p>\n\n\n\n<p>\u5ba2\u6237\u7aef\u5411\u670d\u52a1\u7aef\u53d1\u9001\u4e00\u6bb5\u8bf7\u6c42\u62a5\u6587\uff0c\u670d\u52a1\u7aef\u6536\u5230\u540e\uff0c\u8fd4\u56de\u54cd\u5e94\u62a5\u6587\uff0c\u5ba2\u6237\u7aef\u5bf9\u54cd\u5e94\u5185\u5bb9\u8fdb\u884c\u5c55\u793a\u3002<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/92it.top\/wp-content\/uploads\/2023\/11\/\u56fe\u7247-3.png\" alt=\"\" class=\"wp-image-13157\" width=\"421\" height=\"235\" srcset=\"https:\/\/92it.top\/wp-content\/uploads\/2023\/11\/\u56fe\u7247-3.png 840w, https:\/\/92it.top\/wp-content\/uploads\/2023\/11\/\u56fe\u7247-3-300x167.png 300w, https:\/\/92it.top\/wp-content\/uploads\/2023\/11\/\u56fe\u7247-3-768x428.png 768w, https:\/\/92it.top\/wp-content\/uploads\/2023\/11\/\u56fe\u7247-3-830x462.png 830w, https:\/\/92it.top\/wp-content\/uploads\/2023\/11\/\u56fe\u7247-3-230x128.png 230w, https:\/\/92it.top\/wp-content\/uploads\/2023\/11\/\u56fe\u7247-3-350x195.png 350w, https:\/\/92it.top\/wp-content\/uploads\/2023\/11\/\u56fe\u7247-3-480x267.png 480w\" sizes=\"(max-width: 421px) 100vw, 421px\" \/><\/figure><\/div>\n\n\n\n<p>\u4e00\u4e2a HTTP \u7684\u8bf7\u6c42\u5fc5\u5b9a\u662f<strong>\u7531\u5ba2\u6237\u7aef\u53d1\u8d77\uff0c\u670d\u52a1\u5668\u7aef\u56de\u590d\u54cd\u5e94<\/strong>\u3002\u670d\u52a1\u5668\u5728\u6ca1\u6709\u63a5\u6536\u5230\u8bf7\u6c42\u4e4b\u524d\u4e0d\u4f1a\u53d1\u9001\u54cd\u5e94\u3002<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">\u540d\u8bcd\u89e3\u91ca\n\u5ba2\u6237\u7aef\uff1a\u8bf7\u6c42\u8bbf\u95ee\u6587\u672c\u6216\u56fe\u50cf\u7b49\u8d44\u6e90\u7684\u4e00\u7aef\u3002\n\u670d\u52a1\u7aef\uff1a\u63d0\u4f9b\u8d44\u6e90\u54cd\u5e94\u7684\u4e00\u7aef\u3002\n\u8d44\u6e90\uff1a\u7f51\u7edc\u4e0a\u7684\u4e00\u5207\u5185\u5bb9\u90fd\u662f\u8d44\u6e90\uff0c\u65e0\u8bba\u662f\u56fe\u7247\u6587\u5b57\u8fd8\u662f\u52a8\u6001\u4ee3\u7801\u3002<\/pre>\n\n\n\n<p><strong>\u62a5\u6587\u662f\u4ec0\u4e48<\/strong><\/p>\n\n\n\n<p>\u62a5\u6587\u662f\u5728 HTTP \u5e94\u7528\u7a0b\u5e8f\u4e4b\u95f4\u53d1\u9001\u7684<strong>\u6570\u636e\u5757<\/strong>\u3002\u8fd9\u4e9b\u6570\u636e\u5757\u4ee5\u4e00\u4e9b\u6587\u672c\u7684\u5143\u4fe1\u606f (meta \u6807\u7b7e\u4e2d\u7684\u4fe1\u606f) \u5f00\u5934\uff0c\u63cf\u8ff0\u4e86\u62a5\u6587\u7684\u5185\u5bb9\u53ca\u542b\u4e49\u3002<\/p>\n\n\n\n<p>\u6bcf\u6761\u62a5\u6587\u90fd\u5305\u542b<strong>\u4e00\u6761\u6765\u81ea\u4e8e\u5ba2\u6237\u7aef\u7684\u8bf7\u6c42\uff0c\u6216\u8005\u4e00\u6761\u6765\u81ea\u4e8e\u670d\u52a1\u7aef\u7684\u54cd\u5e94<\/strong>\u3002<\/p>\n\n\n\n<p>\u5b83\u7531 3 \u90e8\u5206\u7ec4\u6210\uff1a\u5bf9\u62a5\u6587\u8fdb\u884c\u63cf\u8ff0\u7684\u300c<strong>\u8d77\u59cb\u884c<\/strong>\u300d\u3001\u5305\u542b\u5c5e\u6027\u7684\u300c<strong>\u9996\u90e8(Header)<\/strong>\u300d\u4ee5\u53ca\u53ef\u9009\u7684\u3001\u5305\u542b\u6570\u636e\u7684\u300c<strong>\u4e3b\u4f53(body)<\/strong>\u300d<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/92it.top\/wp-content\/uploads\/2023\/11\/\u56fe\u7247-4.png\" alt=\"\" class=\"wp-image-13158\" width=\"465\" height=\"209\" srcset=\"https:\/\/92it.top\/wp-content\/uploads\/2023\/11\/\u56fe\u7247-4.png 832w, https:\/\/92it.top\/wp-content\/uploads\/2023\/11\/\u56fe\u7247-4-300x135.png 300w, https:\/\/92it.top\/wp-content\/uploads\/2023\/11\/\u56fe\u7247-4-768x345.png 768w, https:\/\/92it.top\/wp-content\/uploads\/2023\/11\/\u56fe\u7247-4-830x373.png 830w, https:\/\/92it.top\/wp-content\/uploads\/2023\/11\/\u56fe\u7247-4-230x103.png 230w, https:\/\/92it.top\/wp-content\/uploads\/2023\/11\/\u56fe\u7247-4-350x157.png 350w, https:\/\/92it.top\/wp-content\/uploads\/2023\/11\/\u56fe\u7247-4-480x216.png 480w\" sizes=\"(max-width: 465px) 100vw, 465px\" \/><\/figure><\/div>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">Accept          \u6307\u5b9a\u5ba2\u6237\u7aef\u80fd\u591f\u63a5\u6536\u7684\u5185\u5bb9\u7c7b\u578b  Accept:text\/plain,text\/html\nAccept-Charset  \u6d4f\u89c8\u5668\u53ef\u4ee5\u63a5\u53d7\u7684\u5b57\u7b26\u7f16\u7801\u96c6\u3002  Accept-Charset:iso-8859-5\nAccept-Encoding \u6307\u5b9a\u6d4f\u89c8\u5668\u53ef\u4ee5\u652f\u6301\u7684web\u670d\u52a1\u5668\u8fd4\u56de\u5185\u5bb9\u538b\u7f29\u7f16\u7801\u7c7b\u578b\u3002 Accept-Encoding:compress,gzip\nAccept-Language \u6d4f\u89c8\u5668\u53ef\u63a5\u53d7\u7684\u8bed\u8a00 Accept-Language:en,zh\nAccept-Ranges \u53ef\u4ee5\u8bf7\u6c42\u7f51\u9875\u5b9e\u4f53\u7684\u4e00\u4e2a\u6216\u8005\u591a\u4e2a\u5b50\u8303\u56f4\u5b57\u6bb5  Accept-Ranges:bytes\nAuthorization HTTP\u6388\u6743\u7684\u6388\u6743\u8bc1\u4e66 Authorization:Basic QWxhZGRpbjpvcGVuIHNlc2FtZQ==\nCache-Control \u6307\u5b9a\u8bf7\u6c42\u548c\u54cd\u5e94\u9075\u5faa\u7684\u7f13\u5b58\u673a\u5236  Cache-Control:no-cache\nConnection  \u8868\u793a\u662f\u5426\u9700\u8981\u6301\u4e45\u8fde\u63a5\u3002\uff08HTTP 1.1\u9ed8\u8ba4\u8fdb\u884c\u6301\u4e45\u8fde\u63a5\uff09 Connection:close\nCookie          HTTP\u8bf7\u6c42\u53d1\u9001\u65f6\uff0c\u4f1a\u628a\u4fdd\u5b58\u5728\u8be5\u8bf7\u6c42\u57df\u540d\u4e0b\u7684\u6240\u6709cookie\u503c\u4e00\u8d77\u53d1\u9001\u7ed9web\u670d\u52a1\u5668\u3002 Cookie:$Version=1;Skin=new;\nContent-Length  \u8bf7\u6c42\u7684\u5185\u5bb9\u957f\u5ea6 Content-Length:348\nContent-Type  \u8bf7\u6c42\u7684\u4e0e\u5b9e\u4f53\u5bf9\u5e94\u7684MIME\u4fe1\u606f Content-Type:application\/x-www-form-urlencoded\nDate          \u8bf7\u6c42\u53d1\u9001\u7684\u65e5\u671f\u548c\u65f6\u95f4  Date:Tue,15 Nov 2010 08:12:31 GMT\nExpect          \u8bf7\u6c42\u7684\u7279\u5b9a\u7684\u670d\u52a1\u5668\u884c\u4e3a Expect:100-continue\nFrom            \u53d1\u51fa\u8bf7\u6c42\u7684\u7528\u6237\u7684Email From:user@email.com\nHost          \u6307\u5b9a\u8bf7\u6c42\u7684\u670d\u52a1\u5668\u7684\u57df\u540d\u548c\u7aef\u53e3\u53f7 Host:www.zcmhi.com\nIf-Match  \u53ea\u6709\u8bf7\u6c42\u5185\u5bb9\u4e0e\u5b9e\u4f53\u76f8\u5339\u914d\u624d\u6709\u6548 If-Match:\u201c737060cd8c284d8af7ad3082f209582d\u201d\nIf-Modified-Since \u5982\u679c\u8bf7\u6c42\u7684\u90e8\u5206\u5728\u6307\u5b9a\u65f6\u95f4\u4e4b\u540e\u88ab\u4fee\u6539\u5219\u8bf7\u6c42\u6210\u529f\uff0c\u672a\u88ab\u4fee\u6539\u5219\u8fd4\u56de304\u4ee3\u7801 If-Modified-Since:Sat,29 Oct 2010 19:43:31 GMT\nIf-None-Match \u5982\u679c\u5185\u5bb9\u672a\u6539\u53d8\u8fd4\u56de304\u4ee3\u7801\uff0c\u53c2\u6570\u4e3a\u670d\u52a1\u5668\u5148\u524d\u53d1\u9001\u7684Etag\uff0c\u4e0e\u670d\u52a1\u5668\u56de\u5e94\u7684Etag\u6bd4\u8f83\u5224\u65ad\u662f\u5426\u6539\u53d8  If-None-Match:\u201c737060cd8c284d8af7ad3082f209582d\u201d\nIf-Range  \u5982\u679c\u5b9e\u4f53\u672a\u6539\u53d8\uff0c\u670d\u52a1\u5668\u53d1\u9001\u5ba2\u6237\u7aef\u4e22\u5931\u7684\u90e8\u5206\uff0c\u5426\u5219\u53d1\u9001\u6574\u4e2a\u5b9e\u4f53\u3002\u53c2\u6570\u4e5f\u4e3aEtag If-Range:\u201c737060cd8c284d8af7ad3082f209582d\u201d\nIf-Unmodified-Since \u53ea\u5728\u5b9e\u4f53\u5728\u6307\u5b9a\u65f6\u95f4\u4e4b\u540e\u672a\u88ab\u4fee\u6539\u624d\u8bf7\u6c42\u6210\u529f  If-Unmodified-Since:Sat,29 Oct 2010 19:43:31 GMT\nMax-Forwards  \u9650\u5236\u4fe1\u606f\u901a\u8fc7\u4ee3\u7406\u548c\u7f51\u5173\u4f20\u9001\u7684\u65f6\u95f4  Max-Forwards:10\nPragma          \u7528\u6765\u5305\u542b\u5b9e\u73b0\u7279\u5b9a\u7684\u6307\u4ee4 Pragma:no-cache\nProxy-Authorization \u8fde\u63a5\u5230\u4ee3\u7406\u7684\u6388\u6743\u8bc1\u4e66  Proxy-Authorization:Basic QWxhZGRpbjpvcGVuIHNlc2FtZQ==\nRange         \u53ea\u8bf7\u6c42\u5b9e\u4f53\u7684\u4e00\u90e8\u5206\uff0c\u6307\u5b9a\u8303\u56f4  Range:bytes=500-999\nReferer     \u5148\u524d\u7f51\u9875\u7684\u5730\u5740\uff0c\u5f53\u524d\u8bf7\u6c42\u7f51\u9875\u7d27\u968f\u5176\u540e,\u5373\u6765\u8def  Referer:http:\nTE          \u5ba2\u6237\u7aef\u613f\u610f\u63a5\u53d7\u7684\u4f20\u8f93\u7f16\u7801\uff0c\u5e76\u901a\u77e5\u670d\u52a1\u5668\u63a5\u53d7\u63a5\u53d7\u5c3e\u52a0\u5934\u4fe1\u606f  TE:trailers,deflate;q=0.5\nUpgrade         \u5411\u670d\u52a1\u5668\u6307\u5b9a\u67d0\u79cd\u4f20\u8f93\u534f\u8bae\u4ee5\u4fbf\u670d\u52a1\u5668\u8fdb\u884c\u8f6c\u6362\uff08\u5982\u679c\u652f\u6301\uff09 Upgrade:HTTP\/2.0,SHTTP\/1.3,IRC\/6.9,RTA\/x11\nUser-Agent      User-Agent\u7684\u5185\u5bb9\u5305\u542b\u53d1\u51fa\u8bf7\u6c42\u7684\u7528\u6237\u4fe1\u606f  User-Agent:Mozilla\/5.0(Linux;X11)\nVia         \u901a\u77e5\u4e2d\u95f4\u7f51\u5173\u6216\u4ee3\u7406\u670d\u52a1\u5668\u5730\u5740\uff0c\u901a\u4fe1\u534f\u8bae Via:1.0 fred,1.1 nowhere.com(Apache\/1.1)\nWarning         \u5173\u4e8e\u6d88\u606f\u5b9e\u4f53\u7684\u8b66\u544a\u4fe1\u606f Warn:199 Miscellaneous warning\n<\/pre>\n\n\n\n<p><strong>\u4e00\u3001HTTP\u5934\u5f15\u5165<\/strong><\/p>\n\n\n\n<hr class=\"wp-block-separator\"\/>\n\n\n\n<p>\u6b63\u786e\u7684\u8bbe\u7f6eHTTP\u5934\u90e8\u4fe1\u606f\u6709\u52a9\u4e8e\u641c\u7d22\u5f15\u64ce\u5224\u65ad\u7f51\u9875\u53ca\u63d0\u5347\u7f51\u7ad9\u8bbf\u95ee\u901f\u5ea6\u3002\u901a\u5e38HTTP\u6d88\u606f\u5305\u62ec\uff1a\u5ba2\u6237\u673a\u5411\u670d\u52a1\u5668\u7684\u8bf7\u6c42\u6d88\u606f\u548c\u670d\u52a1\u5668\u5411\u5ba2\u6237\u673a\u7684\u54cd\u5e94\u6d88 \u606f\u3002\u5ba2\u6237\u7aef\u5411\u670d\u52a1\u5668\u53d1\u9001\u4e00\u4e2a\u8bf7\u6c42\uff0c\u8bf7\u6c42\u5934\u5305\u542b\u8bf7\u6c42\u7684\u65b9\u6cd5\u3001URI\u3001\u534f\u8bae\u7248\u672c\u3001\u4ee5\u53ca\u5305\u542b\u8bf7\u6c42\u4fee\u9970\u7b26\u3001\u5ba2\u6237\u4fe1\u606f\u548c\u5185\u5bb9\u7684\u7c7b\u4f3c\u4e8eMIME\u7684\u6d88\u606f\u7ed3\u6784\u3002\u670d\u52a1\u5668\u4ee5\u4e00 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https:\/\/92it.top\/wp-content\/uploads\/2023\/04\/\u56fe\u7247-22-230x135.png 230w, https:\/\/92it.top\/wp-content\/uploads\/2023\/04\/\u56fe\u7247-22-350x206.png 350w, https:\/\/92it.top\/wp-content\/uploads\/2023\/04\/\u56fe\u7247-22-480x282.png 480w, https:\/\/92it.top\/wp-content\/uploads\/2023\/04\/\u56fe\u7247-22.png 1326w\" sizes=\"(max-width: 455px) 100vw, 455px\" \/><\/figure><\/div>\n\n\n\n<p>Http\u534f\u8bae\u5b9a\u4e49\u4e86\u5f88\u591a\u4e0e\u670d\u52a1\u5668\u4ea4\u4e92\u7684\u65b9\u6cd5\uff0c\u5373HTTP\u8bf7\u6c42\u7684\u79cd\u7c7b\u4e2d\uff0c\u6700\u57fa\u672c\u7684\u67094\u79cd\uff0c\u5206\u522b\u662fGET\u3001POST\u3001PUT\u3001DELETE\u3002\u4e00\u4e2aURL\u5730\u5740\u7528\u4e8e\u63cf\u8ff0\u4e00\u4e2a\u7f51\u7edc\u4e0a\u7684\u8d44\u6e90\uff0c\u800cHTTP\u4e2dGET\u3001POST\u3001PUT\u3001 DELETE\u5c31\u5bf9\u5e94\u7740\u5bf9\u8fd9\u4e2a\u8d44\u6e90\u7684\u67e5\u3001\u6539\u3001\u589e\u3001\u52204\u4e2a\u64cd\u4f5c\uff0c\u6211\u4eec\u6700\u5e38\u89c1\u7684\u5c31\u662fGET\u548cPOST\u4e86\u3002<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">GET\uff1a\u901a\u8fc7\u8bf7\u6c42URI\u5f97\u5230\u8d44\u6e90\u3002\u4e00\u822c\u7528\u4e8e\u83b7\u53d6\/\u67e5\u8be2\u8d44\u6e90\u4fe1\u606f\u3002\nPOST\uff1a\u7528\u4e8e\u5411\u670d\u52a1\u5668\u63d0\u4ea4\u65b0\u7684\u5185\u5bb9\u3002\u4e00\u822c\u7528\u4e8e\u66f4\u65b0\u8d44\u6e90\u4fe1\u606f\u3002<\/pre>\n\n\n\n<p><strong>\u4e8c\u3001HTTP\u5934\u4fe1\u606f\u89e3\u8bfb<\/strong><\/p>\n\n\n\n<hr class=\"wp-block-separator\"\/>\n\n\n\n<p>HTTP\u7684\u5934\u57df\u5305\u62ec\u901a\u7528\u5934\u3001\u8bf7\u6c42\u5934\u3001\u54cd\u5e94\u5934\u548c\u5b9e\u4f53\u5934\u56db\u4e2a\u90e8\u5206\u3002\u6bcf\u4e2a\u5934\u57df\u7531\u4e00\u4e2a\u57df\u540d\uff0c\u5192\u53f7\uff08:\uff09\u548c\u57df\u503c\u4e09\u90e8\u5206\u7ec4\u6210\uff08\u8bf4\u767d\u4e86\u5c31\u662f\u952e\u503c\u5bf9\uff09\u3002<\/p>\n\n\n\n<ul><li>\u901a\u7528\u5934\uff1a\u662f\u5ba2\u6237\u7aef\u548c\u670d\u52a1\u5668\u90fd\u53ef\u4ee5\u4f7f\u7528\u7684\u5934\u90e8\uff0c\u53ef\u4ee5\u5728\u5ba2\u6237\u7aef\u3001\u670d\u52a1\u5668\u548c\u5176\u4ed6\u5e94\u7528\u7a0b\u5e8f\u4e4b\u95f4\u63d0\u4f9b\u4e00\u4e9b\u975e\u5e38\u6709\u7528\u7684\u901a\u7528\u529f\u80fd\uff0c\u5982Date\u5934\u90e8\u3002<\/li><li>\u8bf7\u6c42\u5934\uff1a\u662f\u8bf7\u6c42\u62a5\u6587\u7279\u6709\u7684\uff0c\u5b83\u4eec\u4e3a\u670d\u52a1\u5668\u63d0\u4f9b\u4e86\u4e00\u4e9b\u989d\u5916\u4fe1\u606f\uff0c\u6bd4\u5982\u5ba2\u6237\u7aef\u5e0c\u671b\u63a5\u6536\u4ec0\u4e48\u7c7b\u578b\u7684\u6570\u636e\uff0c\u5982Accept\u5934\u90e8\u3002<\/li><li>\u54cd\u5e94\u5934\uff1a\u4fbf\u4e8e\u5ba2\u6237\u7aef\u63d0\u4f9b\u4fe1\u606f\uff0c\u6bd4\u5982\uff0c\u5ba2\u670d\u7aef\u5728\u4e0e\u54ea\u79cd\u7c7b\u578b\u7684\u670d\u52a1\u5668\u8fdb\u884c\u4ea4\u4e92\uff0c\u5982Server\u5934\u90e8\u3002<\/li><li>\u5b9e\u4f53\u5934\uff1a\u6307\u7684\u662f\u7528\u4e8e\u5e94\u5bf9\u5b9e\u4f53\u4e3b\u4f53\u90e8\u5206\u7684\u5934\u90e8\uff0c\u6bd4\u5982\uff0c\u53ef\u4ee5\u7528\u5b9e\u4f53\u5934\u90e8\u6765\u8bf4\u660e\u5b9e\u4f53\u4e3b\u4f53\u90e8\u5206\u7684\u6570\u636e\u7c7b\u578b\uff0c\u5982Content-Type\u5934\u90e8\u3002<\/li><\/ul>\n\n\n\n<p><strong>\u4e09\u3001HTTP\u901a\u7528\u5934<\/strong><\/p>\n\n\n\n<hr class=\"wp-block-separator\"\/>\n\n\n\n<p>\u901a\u7528\u5934\u57df\u5305\u542b\u8bf7\u6c42\u548c\u54cd\u5e94\u6d88\u606f\u90fd\u652f\u6301\u7684\u5934\u57df\uff0c\u901a\u7528\u5934\u57df\u5305\u542b\u7f13\u5b58\u5934\u90e8Cache-Control\u3001Pragma\u53ca\u4fe1\u606f\u6027\u5934\u90e8Connection\u3001Date\u3001Transfer-Encoding\u3001Update\u3001Via\u3002<\/p>\n\n\n\n<p><strong>1\u3001Cache-Control<\/strong><\/p>\n\n\n\n<p>Cache-Control\u6307\u5b9a\u8bf7\u6c42\u548c\u54cd\u5e94\u9075\u5faa\u7684\u7f13\u5b58\u673a\u5236\u3002\u5728\u8bf7\u6c42\u6d88\u606f\u6216\u54cd\u5e94\u6d88\u606f\u4e2d\u8bbe\u7f6e Cache-Control\u5e76\u4e0d\u4f1a\u4fee\u6539\u53e6\u4e00\u4e2a\u6d88\u606f\u5904\u7406\u8fc7\u7a0b\u4e2d\u7684\u7f13\u5b58\u5904\u7406\u8fc7\u7a0b\u3002\u8bf7\u6c42\u65f6\u7684\u7f13\u5b58\u6307\u4ee4\u5305\u62ecno-cache\u3001no-store\u3001max-age\u3001 max-stale\u3001min-fresh\u3001only-if-cached\uff0c\u54cd\u5e94\u6d88\u606f\u4e2d\u7684\u6307\u4ee4\u5305\u62ecpublic\u3001private\u3001no-cache\u3001no- store\u3001no-transform\u3001must-revalidate\u3001proxy-revalidate\u3001max-age\u3002\u5404\u4e2a\u6d88\u606f\u4e2d\u7684\u6307\u4ee4\u542b\u4e49\u5982\u4e0b\uff1a<\/p>\n\n\n\n<ul><li>no-cache\uff1a\u6307\u793a\u8bf7\u6c42\u6216\u54cd\u5e94\u6d88\u606f\u4e0d\u80fd\u7f13\u5b58\uff0c\u5b9e\u9645\u4e0a\u662f\u53ef\u4ee5\u5b58\u50a8\u5728\u672c\u5730\u7f13\u5b58\u533a\u4e2d\u7684\uff0c\u53ea\u662f\u5728\u4e0e\u539f\u59cb\u670d\u52a1\u5668\u8fdb\u884c\u65b0\u9c9c\u5ea6\u9a8c\u8bc1\u4e4b\u524d\uff0c\u7f13\u5b58\u4e0d\u80fd\u5c06\u5176\u63d0\u4f9b\u7ed9\u5ba2\u6237\u7aef\u4f7f\u7528\u3002<\/li><li>no-store\uff1a\u7f13\u5b58\u5e94\u8be5\u5c3d\u5feb\u4ece\u5b58\u50a8\u5668\u4e2d\u5220\u9664\u6587\u6863\u7684\u6240\u6709\u75d5\u8ff9\uff0c\u56e0\u4e3a\u5176\u4e2d\u53ef\u80fd\u4f1a\u5305\u542b\u654f\u611f\u4fe1\u606f\u3002<\/li><li>max-age\uff1a\u7f13\u5b58\u65e0\u6cd5\u8fd4\u56de\u7f13\u5b58\u65f6\u95f4\u957f\u4e8emax-age\u89c4\u5b9a\u79d2\u7684\u6587\u6863\uff0c\u82e5\u4e0d\u8d85\u89c4\u5b9a\u79d2\u6d4f\u89c8\u5668\u5c06\u4e0d\u4f1a\u53d1\u9001\u5bf9\u5e94\u7684\u8bf7\u6c42\u5230\u670d\u52a1\u5668\uff0c\u6570\u636e\u7531\u7f13\u5b58\u76f4\u63a5\u8fd4\u56de\uff1b \u8d85\u8fc7\u8fd9\u4e00\u65f6\u95f4\u6bb5\u624d\u8fdb\u4e00\u6b65\u7531\u670d\u52a1\u5668\u51b3\u5b9a\u662f\u8fd4\u56de\u65b0\u6570\u636e\u8fd8\u662f\u4ecd\u7531\u7f13\u5b58\u63d0\u4f9b\u3002\u82e5\u540c\u65f6\u8fd8\u53d1\u9001\u4e86max-stale\u6307\u4ee4\uff0c\u5219\u4f7f\u7528\u671f\u53ef\u80fd\u4f1a\u8d85\u8fc7\u5176\u8fc7\u671f\u65f6\u95f4\u3002<\/li><li>min-fresh\uff1a\u81f3\u5c11\u5728\u672a\u6765\u89c4\u5b9a\u79d2\u5185\u6587\u6863\u8981\u4fdd\u6301\u65b0\u9c9c\uff0c\u63a5\u53d7\u5176\u65b0\u9c9c\u751f\u547d\u671f\u5927\u4e8e\u5176\u5f53\u524d Age \u8ddf min-fresh 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Control:no-cache\u76f8\u540c\u3002<\/p>\n\n\n\n<p><strong>3\u3001Connection<\/strong><\/p>\n\n\n\n<p>Connection\u8868\u793a\u662f\u5426\u9700\u8981\u6301\u4e45\u8fde\u63a5\u3002\u5982\u679cServlet\u770b\u5230\u8fd9\u91cc\u7684\u503c\u4e3a\u201cKeep-Alive\u201d\uff0c\u6216\u8005\u770b\u5230\u8bf7\u6c42\u4f7f\u7528\u7684\u662fHTTP 1.1\uff08HTTP 1.1\u9ed8\u8ba4\u8fdb\u884c\u6301\u4e45\u8fde\u63a5\uff09\uff0c\u5b83\u5c31\u53ef\u4ee5\u5229\u7528\u6301\u4e45\u8fde\u63a5\u7684\u4f18\u70b9\uff0c\u5f53\u9875\u9762\u5305\u542b\u591a\u4e2a\u5143\u7d20\u65f6\uff08\u4f8b\u5982Applet\uff0c\u56fe\u7247\uff09\uff0c\u663e\u8457\u5730\u51cf\u5c11\u4e0b\u8f7d\u6240\u9700\u8981\u7684\u65f6\u95f4\u3002\u8981\u5b9e\u73b0\u8fd9\u4e00 \u70b9\uff0cServlet\u9700\u8981\u5728\u5e94\u7b54\u4e2d\u53d1\u9001\u4e00\u4e2aContent-Length\u5934\uff0c\u6700\u7b80\u5355\u7684\u5b9e\u73b0\u65b9\u6cd5\u662f\uff1a\u5148\u628a\u5185\u5bb9\u5199\u5165 ByteArrayOutputStream\uff0c\u7136\u540e\u5728\u6b63\u5f0f\u5199\u51fa\u5185\u5bb9\u4e4b\u524d\u8ba1\u7b97\u5b83\u7684\u5927\u5c0f\u3002<\/p>\n\n\n\n<ul><li>Close\uff1a\u544a\u8bc9WEB\u670d\u52a1\u5668\u6216\u8005\u4ee3\u7406\u670d\u52a1\u5668\uff0c\u5728\u5b8c\u6210\u672c\u6b21\u8bf7\u6c42\u7684\u54cd\u5e94\u540e\uff0c\u65ad\u5f00\u8fde\u63a5\uff0c\u4e0d\u8981\u7b49\u5f85\u672c\u6b21\u8fde\u63a5\u7684\u540e\u7eed\u8bf7\u6c42\u4e86\u3002<\/li><li>Keepalive\uff1a\u544a\u8bc9WEB\u670d\u52a1\u5668\u6216\u8005\u4ee3\u7406\u670d\u52a1\u5668\uff0c\u5728\u5b8c\u6210\u672c\u6b21\u8bf7\u6c42\u7684\u54cd\u5e94\u540e\uff0c\u4fdd\u6301\u8fde\u63a5\uff0c\u7b49\u5f85\u672c\u6b21\u8fde\u63a5\u7684\u540e\u7eed\u8bf7\u6c42\u3002<\/li><li>Keep-Alive\uff1a\u5982\u679c\u6d4f\u89c8\u5668\u8bf7\u6c42\u4fdd\u6301\u8fde\u63a5\uff0c\u5219\u8be5\u5934\u90e8\u8868\u660e\u5e0c\u671b WEB 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WWW-Authenticate \u54cd\u5e94\u65f6\uff0c\u7528\u8be5\u5934\u90e8\u6765\u56de\u5e94\u81ea\u5df1\u7684\u8eab\u4efd\u9a8c\u8bc1\u4fe1\u606f\u7ed9WEB\u670d\u52a1\u5668\u3002<\/p>\n\n\n\n<p><strong>13\u3001If-Match<\/strong><\/p>\n\n\n\n<p>\u5982\u679c\u5bf9\u8c61\u7684 ETag \u6539\u53d8\u4e86\uff0c\u5176\u5b9e\u4e5f\u5c31\u610f\u5473\u8457\u5bf9\u8c61\u4e5f\u6539\u53d8\u4e86\uff0c\u624d\u6267\u884c\u8bf7\u6c42\u7684\u52a8\u4f5c\uff0c\u83b7\u53d6\u6587\u6863\u3002<\/p>\n\n\n\n<p><strong>15\u3001If-Modified-Since<\/strong><\/p>\n\n\n\n<p>\u5982\u679c\u8bf7\u6c42\u7684\u5bf9\u8c61\u5728\u8be5\u5934\u90e8\u6307\u5b9a\u7684\u65f6\u95f4\u4e4b\u540e\u4fee\u6539\u4e86\uff0c\u624d\u6267\u884c\u8bf7\u6c42\u7684\u52a8\u4f5c\uff08\u6bd4\u5982\u8fd4\u56de\u5bf9\u8c61\uff09\uff0c\u5426\u5219\u8fd4\u56de\u4ee3\u7801304\uff0c\u544a\u8bc9\u6d4f\u89c8\u5668\u8be5\u5bf9\u8c61\u6ca1\u6709\u4fee\u6539\u3002\u4f8b\u5982\uff1aIf-Modified-Since\uff1aThu, 10 Apr 2008 09:14:42 GMT<\/p>\n\n\n\n<p><strong>16\u3001If-Unmodified-Since<\/strong><\/p>\n\n\n\n<p>\u5982\u679c\u8bf7\u6c42\u7684\u5bf9\u8c61\u5728\u8be5\u5934\u90e8\u6307\u5b9a\u7684\u65f6\u95f4\u4e4b\u540e\u6ca1\u4fee\u6539\u8fc7\uff0c\u624d\u6267\u884c\u8bf7\u6c42\u7684\u52a8\u4f5c\uff08\u6bd4\u5982\u8fd4\u56de\u5bf9\u8c61\uff09\u3002<\/p>\n\n\n\n<p><strong>17\u3001If-Range<\/strong><\/p>\n\n\n\n<p>\u6d4f\u89c8\u5668\u544a\u8bc9 WEB \u670d\u52a1\u5668\uff0c\u5982\u679c\u6211\u8bf7\u6c42\u7684\u5bf9\u8c61\u6ca1\u6709\u6539\u53d8\uff0c\u5c31\u628a\u6211\u7f3a\u5c11\u7684\u90e8\u5206\u7ed9\u6211\uff0c\u5982\u679c\u5bf9\u8c61\u6539\u53d8\u4e86\uff0c\u5c31\u628a\u6574\u4e2a\u5bf9\u8c61\u7ed9\u6211\u3002\u6d4f\u89c8\u5668\u901a\u8fc7\u53d1\u9001\u8bf7\u6c42\u5bf9\u8c61\u7684ETag \u6216\u8005\u81ea\u5df1\u6240\u77e5\u9053\u7684\u6700\u540e\u4fee\u6539\u65f6\u95f4\u7ed9 WEB \u670d\u52a1\u5668\uff0c\u8ba9\u5176\u5224\u65ad\u5bf9\u8c61\u662f\u5426\u6539\u53d8\u4e86\u3002\u603b\u662f\u8ddf Range 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