{"id":585,"date":"2011-01-01T17:58:50","date_gmt":"2011-01-01T17:58:50","guid":{"rendered":""},"modified":"2011-01-01T17:58:50","modified_gmt":"2011-01-01T17:58:50","slug":"585","status":"publish","type":"post","link":"https:\/\/www.poloo.org\/?p=585","title":{"rendered":"\u8be6\u89e3HTTP \u72b6\u6001\u4ee3\u7801"},"content":{"rendered":"<div class=\"article_content\" id=\"article-content-div\">\n<p>\u5982\u679c\u5411\u60a8\u7684\u670d\u52a1\u5668\u53d1\u51fa\u4e86\u67d0\u9879\u8bf7\u6c42\u8981\u6c42\u663e\u793a\u60a8\u7f51\u7ad9\u4e0a\u7684\u67d0\u4e2a\u7f51\u9875\uff08\u4f8b\u5982\uff0c\u5f53\u7528\u6237\u901a\u8fc7\u6d4f\u89c8\u5668\u8bbf\u95ee\u60a8\u7684\u7f51\u9875\u6216\u5728 Googlebot \u6293\u53d6\u8be5\u7f51\u9875\u65f6\uff09\uff0c\u90a3\u4e48\uff0c\u60a8\u7684\u670d\u52a1\u5668\u4f1a\u8fd4\u56de HTTP \u72b6\u6001\u4ee3\u7801\u4ee5\u54cd\u5e94\u8be5\u8bf7\u6c42\u3002<\/p>\n<p>\u6b64\u72b6\u6001\u4ee3\u7801\u63d0\u4f9b\u4e86\u6709\u5173\u8bf7\u6c42\u72b6\u6001\u7684\u4fe1\u606f\uff0c\u4e14\u4e3a Googlebot \u63d0\u4f9b\u4e86\u6709\u5173\u60a8\u7f51\u7ad9\u548c\u8bf7\u6c42\u7684\u7f51\u9875\u7684\u4fe1\u606f\u3002<\/p>\n<p>\u4e00\u4e9b\u5e38\u89c1\u7684\u72b6\u6001\u4ee3\u7801\u4e3a\uff1a<\/p>\n<ul>\n<li><strong>200<\/strong> &#8211; \u670d\u52a1\u5668\u6210\u529f\u8fd4\u56de\u7f51\u9875<\/li>\n<li><strong>404<\/strong> &#8211; \u8bf7\u6c42\u7684\u7f51\u9875\u4e0d\u5b58\u5728<\/li>\n<li><strong>503<\/strong> &#8211; \u670d\u52a1\u5668\u6682\u65f6\u4e0d\u53ef\u7528<\/li>\n<\/ul>\n<p>\u4ee5\u4e0b\u63d0\u4f9b\u4e86 HTTP \u72b6\u6001\u4ee3\u7801\u7684\u5b8c\u6574\u5217\u8868\u3002\u70b9\u51fb\u94fe\u63a5\u53ef\u4e86\u89e3\u8be6\u7ec6\u4fe1\u606f\u3002\u60a8\u4e5f\u53ef\u4ee5\u8bbf\u95ee<font color=\"#0066cc\">\u6709\u5173 HTTP \u72b6\u6001\u4ee3\u7801\u7684 W3C \u9875\u6765\u4e86\u89e3\u8be6\u7ec6\u4fe1\u606f<\/font>\u3002<\/p>\n<p><strong>1xx<\/strong><strong>\uff08\u4e34\u65f6\u54cd\u5e94\uff09<\/strong><br \/>\n\u7528\u4e8e\u8868\u793a\u4e34\u65f6\u54cd\u5e94\u5e76\u9700\u8981\u8bf7\u6c42\u8005\u6267\u884c\u64cd\u4f5c\u624d\u80fd\u7ee7\u7eed\u7684\u72b6\u6001\u4ee3\u7801\u3002<\/p>\n<table cellspacing=\"1\" cellpadding=\"1\" summary=\"1xx status codes indicating a provisional response\" border=\"1\">\n<tbody>\n<tr>\n<th scope=\"col\">\u4ee3\u7801<\/th>\n<th scope=\"col\">\u8bf4\u660e<\/th>\n<\/tr>\n<tr>\n<td>100\uff08\u7ee7\u7eed\uff09<\/td>\n<td>\u8bf7\u6c42\u8005\u5e94\u5f53\u7ee7\u7eed\u63d0\u51fa\u8bf7\u6c42\u3002\u670d\u52a1\u5668\u8fd4\u56de\u6b64\u4ee3\u7801\u5219\u610f\u5473\u7740\uff0c\u670d\u52a1\u5668\u5df2\u6536\u5230\u4e86\u8bf7\u6c42\u7684\u7b2c\u4e00\u90e8\u5206\uff0c\u73b0\u6b63\u5728\u7b49\u5f85\u63a5\u6536\u5176\u4f59\u90e8\u5206\u3002<\/td>\n<\/tr>\n<tr>\n<td>101\uff08\u5207\u6362\u534f\u8bae\uff09<\/td>\n<td>\u8bf7\u6c42\u8005\u5df2\u8981\u6c42\u670d\u52a1\u5668\u5207\u6362\u534f\u8bae\uff0c\u670d\u52a1\u5668\u5df2\u786e\u8ba4\u5e76\u51c6\u5907\u8fdb\u884c\u5207\u6362\u3002<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><strong>2xx<\/strong><strong>\uff08\u6210\u529f\uff09<\/strong><\/p>\n<p>\u7528\u4e8e\u8868\u793a\u670d\u52a1\u5668\u5df2\u6210\u529f\u5904\u7406\u4e86\u8bf7\u6c42\u7684\u72b6\u6001\u4ee3\u7801\u3002<\/p>\n<table cellspacing=\"1\" cellpadding=\"1\" summary=\"2xx status codes indicating successful requests\" border=\"1\">\n<tbody>\n<tr>\n<th scope=\"col\">\u4ee3\u7801<\/th>\n<th scope=\"col\">\u8bf4\u660e<\/th>\n<\/tr>\n<tr>\n<td>200\uff08\u6210\u529f\uff09<\/td>\n<td>\u670d\u52a1\u5668\u5df2\u6210\u529f\u5904\u7406\u4e86\u8bf7\u6c42\u3002\u901a\u5e38\uff0c\u8fd9\u8868\u793a\u670d\u52a1\u5668\u63d0\u4f9b\u4e86\u8bf7\u6c42\u7684\u7f51\u9875\u3002\u5982\u679c\u60a8\u7684 robots.txt \u6587\u4ef6\u663e\u793a\u4e3a\u6b64\u72b6\u6001\uff0c\u90a3\u4e48\uff0c\u8fd9\u8868\u793a Googlebot \u5df2\u6210\u529f\u68c0\u7d22\u5230\u8be5\u6587\u4ef6\u3002<\/td>\n<\/tr>\n<tr>\n<td>201\uff08\u5df2\u521b\u5efa\uff09<\/td>\n<td>\u8bf7\u6c42\u6210\u529f\u4e14\u670d\u52a1\u5668\u5df2\u521b\u5efa\u4e86\u65b0\u7684\u8d44\u6e90\u3002<\/td>\n<\/tr>\n<tr>\n<td>202\uff08\u5df2\u63a5\u53d7\uff09<\/td>\n<td>\u670d\u52a1\u5668\u5df2\u63a5\u53d7\u4e86\u8bf7\u6c42\uff0c\u4f46\u5c1a\u672a\u5bf9\u5176\u8fdb\u884c\u5904\u7406\u3002<\/td>\n<\/tr>\n<tr>\n<td>203\uff08\u975e\u6388\u6743\u4fe1\u606f\uff09<\/td>\n<td>\u670d\u52a1\u5668\u5df2\u6210\u529f\u5904\u7406\u4e86\u8bf7\u6c42\uff0c\u4f46\u8fd4\u56de\u4e86\u53ef\u80fd\u6765\u81ea\u53e6\u4e00\u6765\u6e90\u7684\u4fe1\u606f\u3002<\/td>\n<\/tr>\n<tr>\n<td>204\uff08\u65e0\u5185\u5bb9\uff09<\/td>\n<td>\u670d\u52a1\u5668\u6210\u529f\u5904\u7406\u4e86\u8bf7\u6c42\uff0c\u4f46\u672a\u8fd4\u56de\u4efb\u4f55\u5185\u5bb9\u3002<\/td>\n<\/tr>\n<tr>\n<td>205\uff08\u91cd\u7f6e\u5185\u5bb9\uff09<\/td>\n<td>\u670d\u52a1\u5668\u6210\u529f\u5904\u7406\u4e86\u8bf7\u6c42\uff0c\u4f46\u672a\u8fd4\u56de\u4efb\u4f55\u5185\u5bb9\u3002\u4e0e 204 \u54cd\u5e94\u4e0d\u540c\uff0c\u6b64\u54cd\u5e94\u8981\u6c42\u8bf7\u6c42\u8005\u91cd\u7f6e\u6587\u6863\u89c6\u56fe\uff08\u4f8b\u5982\u6e05\u9664\u8868\u5355\u5185\u5bb9\u4ee5\u8f93\u5165\u65b0\u5185\u5bb9\uff09\u3002<\/td>\n<\/tr>\n<tr>\n<td>206\uff08\u90e8\u5206\u5185\u5bb9\uff09<\/td>\n<td>\u670d\u52a1\u5668\u6210\u529f\u5904\u7406\u4e86\u90e8\u5206 GET \u8bf7\u6c42\u3002<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><strong>3xx<\/strong><strong>\uff08\u5df2\u91cd\u5b9a\u5411\uff09<\/strong> <br \/>\n\u8981\u5b8c\u6210\u8bf7\u6c42\uff0c\u60a8\u9700\u8981\u8fdb\u4e00\u6b65\u8fdb\u884c\u64cd\u4f5c\u3002\u901a\u5e38\uff0c\u8fd9\u4e9b\u72b6\u6001\u4ee3\u7801\u662f\u6c38\u8fdc\u91cd\u5b9a\u5411\u7684\u3002Google \u5efa\u8bae\u60a8\u5728\u6bcf\u6b21\u8bf7\u6c42\u65f6\u4f7f\u7528\u7684\u91cd\u5b9a\u5411\u8981\u5c11\u4e8e 5 \u4e2a\u3002\u60a8\u53ef\u4ee5\u4f7f\u7528\u7f51\u7ad9\u7ba1\u7406\u5458\u5de5\u5177\u6765\u67e5\u770b Googlebot \u5728\u6293\u53d6\u60a8\u5df2\u91cd\u5b9a\u5411\u7684\u7f51\u9875\u65f6\u662f\u5426\u4f1a\u9047\u5230\u95ee\u9898\u3002<strong>\u8bca\u65ad<\/strong>\u4e0b\u7684<font color=\"#0066cc\">\u6293\u53d6\u9519\u8bef<\/font>\u9875\u4e2d\u5217\u51fa\u4e86 Googlebot \u7531\u4e8e\u91cd\u5b9a\u5411\u9519\u8bef\u800c\u65e0\u6cd5\u6293\u53d6\u7684\u7f51\u5740\u3002<\/p>\n<table cellspacing=\"1\" cellpadding=\"1\" summary=\"3xx status codes requiring further action\" border=\"1\">\n<tbody>\n<tr>\n<th scope=\"col\">\u4ee3\u7801<\/th>\n<th scope=\"col\">\u8bf4\u660e<\/th>\n<\/tr>\n<tr>\n<td>300\uff08\u591a\u79cd\u9009\u62e9\uff09<\/td>\n<td>\u670d\u52a1\u5668\u6839\u636e\u8bf7\u6c42\u53ef\u6267\u884c\u591a\u79cd\u64cd\u4f5c\u3002\u670d\u52a1\u5668\u53ef\u6839\u636e\u8bf7\u6c42\u8005 (User agent) \u6765\u9009\u62e9\u4e00\u9879\u64cd\u4f5c\uff0c\u6216\u63d0\u4f9b\u64cd\u4f5c\u5217\u8868\u4f9b\u8bf7\u6c42\u8005\u9009\u62e9\u3002<\/td>\n<\/tr>\n<tr>\n<td>301\uff08\u6c38\u4e45\u79fb\u52a8\uff09<\/td>\n<td>\u8bf7\u6c42\u7684\u7f51\u9875\u5df2\u88ab\u6c38\u4e45\u79fb\u52a8\u5230\u65b0\u4f4d\u7f6e\u3002\u670d\u52a1\u5668\u8fd4\u56de\u6b64\u54cd\u5e94\uff08\u4f5c\u4e3a\u5bf9 GET \u6216 HEAD \u8bf7\u6c42\u7684\u54cd\u5e94\uff09\u65f6\uff0c\u4f1a\u81ea\u52a8\u5c06\u8bf7\u6c42\u8005\u8f6c\u5230\u65b0\u4f4d\u7f6e\u3002\u60a8\u5e94\u4f7f\u7528\u6b64\u4ee3\u7801\u901a\u77e5 Googlebot \u67d0\u4e2a\u7f51\u9875\u6216\u7f51\u7ad9\u5df2\u88ab\u6c38\u4e45\u79fb\u52a8\u5230\u65b0\u4f4d\u7f6e\u3002<\/td>\n<\/tr>\n<tr>\n<td>302\uff08\u4e34\u65f6\u79fb\u52a8\uff09<\/td>\n<td>\u670d\u52a1\u5668\u76ee\u524d\u6b63\u4ece\u4e0d\u540c\u4f4d\u7f6e\u7684\u7f51\u9875\u54cd\u5e94\u8bf7\u6c42\uff0c\u4f46\u8bf7\u6c42\u8005\u5e94\u7ee7\u7eed\u4f7f\u7528\u539f\u6709\u4f4d\u7f6e\u6765\u8fdb\u884c\u4ee5\u540e\u7684\u8bf7\u6c42\u3002\u6b64\u4ee3\u7801\u4e0e\u54cd\u5e94 GET \u548c HEAD \u8bf7\u6c42\u7684 301 \u4ee3\u7801\u7c7b\u4f3c\uff0c\u4f1a\u81ea\u52a8\u5c06\u8bf7\u6c42\u8005\u8f6c\u5230\u4e0d\u540c\u7684\u4f4d\u7f6e\u3002\u4f46\u7531\u4e8e Googlebot \u4f1a\u7ee7\u7eed\u6293\u53d6\u539f\u6709\u4f4d\u7f6e\u5e76\u5c06\u5176\u7f16\u5165\u7d22\u5f15\uff0c\u56e0\u6b64\u60a8\u4e0d\u5e94\u4f7f\u7528\u6b64\u4ee3\u7801\u6765\u901a\u77e5 Googlebot \u67d0\u4e2a\u9875\u9762\u6216\u7f51\u7ad9\u5df2\u88ab\u79fb\u52a8\u3002<\/td>\n<\/tr>\n<tr>\n<td>303\uff08\u67e5\u770b\u5176\u4ed6\u4f4d\u7f6e\uff09<\/td>\n<td>\u5f53\u8bf7\u6c42\u8005\u5e94\u5bf9\u4e0d\u540c\u7684\u4f4d\u7f6e\u8fdb\u884c\u5355\u72ec\u7684 GET \u8bf7\u6c42\u4ee5\u68c0\u7d22\u54cd\u5e94\u65f6\uff0c\u670d\u52a1\u5668\u4f1a\u8fd4\u56de\u6b64\u4ee3\u7801\u3002\u5bf9\u4e8e\u9664 HEAD \u8bf7\u6c42\u4e4b\u5916\u7684\u6240\u6709\u8bf7\u6c42\uff0c\u670d\u52a1\u5668\u4f1a\u81ea\u52a8\u8f6c\u5230\u5176\u4ed6\u4f4d\u7f6e\u3002<\/td>\n<\/tr>\n<tr>\n<td>304\uff08\u672a\u4fee\u6539\uff09<\/td>\n<td>\n<p>\u81ea\u4ece\u4e0a\u6b21\u8bf7\u6c42\u540e\uff0c\u8bf7\u6c42\u7684\u7f51\u9875\u672a\u88ab\u4fee\u6539\u8fc7\u3002\u670d\u52a1\u5668\u8fd4\u56de\u6b64\u54cd\u5e94\u65f6\uff0c\u4e0d\u4f1a\u8fd4\u56de\u7f51\u9875\u5185\u5bb9\u3002<\/p>\n<p>\u5982\u679c\u7f51\u9875\u81ea\u8bf7\u6c42\u8005\u4e0a\u6b21\u8bf7\u6c42\u540e\u518d\u4e5f\u6ca1\u6709\u66f4\u6539\u8fc7\uff0c\u60a8\u5e94\u5f53\u5c06\u670d\u52a1\u5668\u914d\u7f6e\u4e3a\u8fd4\u56de\u6b64\u54cd\u5e94\uff08\u79f0\u4e3a If-Modified-Since HTTP \u6807\u5934\uff09\u3002\u7531\u4e8e\u670d\u52a1\u5668\u53ef\u4ee5\u544a\u8bc9 Googlebot \u81ea\u4ece\u4e0a\u6b21\u6293\u53d6\u540e\u7f51\u9875\u6ca1\u6709\u66f4\u6539\u8fc7\uff0c\u56e0\u6b64\u53ef\u8282\u7701\u5e26\u5bbd\u548c\u5f00\u9500<\/p>\n<p>            \u3002<\/td>\n<\/tr>\n<tr>\n<td>305\uff08\u4f7f\u7528\u4ee3\u7406\uff09<\/td>\n<td>\u8bf7\u6c42\u8005\u53ea\u80fd\u4f7f\u7528\u4ee3\u7406\u8bbf\u95ee\u8bf7\u6c42\u7684\u7f51\u9875\u3002\u5982\u679c\u670d\u52a1\u5668\u8fd4\u56de\u6b64\u54cd\u5e94\uff0c\u90a3\u4e48\uff0c\u670d\u52a1\u5668\u8fd8\u4f1a\u6307\u660e\u8bf7\u6c42\u8005\u5e94\u5f53\u4f7f\u7528\u7684\u4ee3\u7406\u3002<\/td>\n<\/tr>\n<tr>\n<td>307\uff08\u4e34\u65f6\u91cd\u5b9a\u5411\uff09<\/td>\n<td>\u670d\u52a1\u5668\u76ee\u524d\u6b63\u4ece\u4e0d\u540c\u4f4d\u7f6e\u7684\u7f51\u9875\u54cd\u5e94\u8bf7\u6c42\uff0c\u4f46\u8bf7\u6c42\u8005\u5e94\u7ee7\u7eed\u4f7f\u7528\u539f\u6709\u4f4d\u7f6e\u6765\u8fdb\u884c\u4ee5\u540e\u7684\u8bf7\u6c42\u3002\u6b64\u4ee3\u7801\u4e0e\u54cd\u5e94 GET \u548c HEAD \u8bf7\u6c42\u7684 301 \u4ee3\u7801\u7c7b\u4f3c\uff0c\u4f1a\u81ea\u52a8\u5c06\u8bf7\u6c42\u8005\u8f6c\u5230\u4e0d\u540c\u7684\u4f4d\u7f6e\u3002\u4f46\u7531\u4e8e Googlebot \u4f1a\u7ee7\u7eed\u6293\u53d6\u539f\u6709\u4f4d\u7f6e\u5e76\u5c06\u5176\u7f16\u5165\u7d22\u5f15\uff0c\u56e0\u6b64\u60a8\u4e0d\u5e94\u4f7f\u7528\u6b64\u4ee3\u7801\u6765\u901a\u77e5 Googlebot \u67d0\u4e2a\u9875\u9762\u6216\u7f51\u7ad9\u5df2\u88ab\u79fb\u52a8\u3002<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><strong>4xx\uff08\u8bf7\u6c42\u9519\u8bef\uff09<\/strong> <br \/>\n\u8fd9\u4e9b\u72b6\u6001\u4ee3\u7801\u8868\u793a\uff0c\u8bf7\u6c42\u53ef\u80fd\u51fa\u9519\uff0c\u5df2\u59a8\u788d\u4e86\u670d\u52a1\u5668\u5bf9\u8bf7\u6c42\u7684\u5904\u7406\u3002<\/p>\n<table cellspacing=\"1\" cellpadding=\"1\" summary=\"4xx status codes indicating that the server could not process the request\" border=\"1\">\n<tbody>\n<tr>\n<th scope=\"col\">\u4ee3\u7801<\/th>\n<th scope=\"col\">\u8bf4\u660e<\/th>\n<\/tr>\n<tr>\n<td>400\uff08\u9519\u8bef\u8bf7\u6c42\uff09<\/td>\n<td>\u670d\u52a1\u5668\u4e0d\u7406\u89e3\u8bf7\u6c42\u7684\u8bed\u6cd5\u3002<\/td>\n<\/tr>\n<tr>\n<td>401\uff08\u672a\u6388\u6743\uff09<\/td>\n<td>\u8bf7\u6c42\u8981\u6c42\u8fdb\u884c\u8eab\u4efd\u9a8c\u8bc1\u3002\u767b\u5f55\u540e\uff0c\u670d\u52a1\u5668\u53ef\u80fd\u4f1a\u8fd4\u56de\u5bf9\u9875\u9762\u7684\u6b64\u54cd\u5e94\u3002<\/td>\n<\/tr>\n<tr>\n<td>403\uff08\u5df2\u7981\u6b62\uff09<\/td>\n<td>\u670d\u52a1\u5668\u62d2\u7edd\u8bf7\u6c42\u3002\u5982\u679c\u5728 Googlebot \u5c1d\u8bd5\u6293\u53d6\u60a8\u7f51\u7ad9\u4e0a\u7684\u6709\u6548\u7f51\u9875\u65f6\u663e\u793a\u6b64\u72b6\u6001\u4ee3\u7801\uff08\u60a8\u53ef\u5728 Google 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