{"id":1035,"date":"2014-08-29T23:26:45","date_gmt":"2014-08-29T15:26:45","guid":{"rendered":"http:\/\/coderbee.net\/?p=1035"},"modified":"2014-08-30T16:58:38","modified_gmt":"2014-08-30T08:58:38","slug":"%e6%95%85%e9%9a%9c%e4%b9%8b-cdn-%e4%bd%bf%e7%94%a8%e9%97%ae%e9%a2%98","status":"publish","type":"post","link":"https:\/\/coderbee.net\/index.php\/notes\/20140829\/1035","title":{"rendered":"\u6545\u969c\u4e4b CDN \u4f7f\u7528\u95ee\u9898"},"content":{"rendered":"<h3>\u6545\u969c\u95ee\u9898<\/h3>\n<p>\u6700\u8fd1\u516c\u53f8\u7684\u4e00\u4e2a\u7cfb\u7edf\u7528\u4e0a\u4e86 CDN \u670d\u52a1\uff0c\u7528\u6237\u53cd\u5e94\u5feb\u591a\u4e86\uff0c\u90a3\u4e2a\u7cfb\u7edf\u4e3b\u8981\u662f\u9759\u6001\u8d44\u6e90\u5c55\u793a\u548c\u4e00\u4e9b\u53ef\u516c\u5f00\u7684\u6570\u636e\u67e5\u8be2\u670d\u52a1\u3002\u53e6\u4e00\u4e2a\u9879\u76ee\u7ec4\u7684\u7cfb\u7edfA\u770b\u4e86\u4e5f\u8981\u4e0a\uff0c\u4e0d\u8fc7\u8fd9\u4e2aA\u7684\u540e\u53f0\u4ee3\u7801\u662f\u653e\u5728\u6211\u6240\u5728\u9879\u76ee\u7ec4M\u91cc\uff0c\u662f\u540c\u4e00\u4e2a\u5e94\u7528\uff0c\u90fd\u5728\u540c\u4e00\u4e2a\u57df\u540d <code>main.com<\/code> \u4e0b\u3002\u7f51\u7edc\u7ec4\u628a <code>main.com<\/code> \u7684 DNS \u89e3\u6790\u5230 CDN \u670d\u52a1\u5668\u4e0a\u53bb\u4e4b\u540e\uff0c\u8bbf\u95ee\u4e5f\u662f\u5feb\u4e86\uff0c\u4f46\u662f\u7528\u6237\u53cd\u5e94\u6570\u636e\u4e71\u4e86\uff0c\u800c\u4e14\u6709\u4e9b\u670d\u52a1\u6ca1\u6cd5\u7528\u4e86\uff0c\u540e\u53f0\u7edf\u8ba1\u7279\u5b9a\u5730\u533a\u7528\u6237\u7684\u8bbf\u95ee\u4e5f\u4e0d\u51c6\u4e86\uff0c\u56e0\u4e3a\u6240\u6709\u8bf7\u6c42\u57fa\u672c\u4e0a\u90fd\u662f\u4ece\u51e0\u4e2a IP \u91cc\u8fc7\u6765\u7684\u3002<\/p>\n<h3>\u95ee\u9898\u539f\u56e0<\/h3>\n<p>\u7a0d\u5fae\u5bf9 CDN \u6709\u6240\u4e86\u89e3\u7684\u4eba\u770b\u5b8c\u95ee\u9898\u63cf\u8ff0\u4e4b\u540e\u90fd\u4f1a\u53d1\u73b0\u95ee\u9898\u6240\u5728\uff1a\u7531\u4e8e\u53ea\u6709\u4e00\u4e2a\u57df\u540d <code>main.com<\/code> \uff0c\u4e14\u88ab\u89e3\u6790\u5230 CDN \u670d\u52a1\u5668\u4e0a\uff0cCDN \u4e0d\u4ec5\u5206\u53d1\u9759\u6001\u8d44\u6e90\uff0c\u8fd8\u53d8\u6210\u4ee3\u7406\u670d\u52a1\u5668\u4e86\uff0c\u6240\u6709\u52a8\u6001\u8bf7\u6c42\u3001\u6570\u636e\u90fd\u8981\u7ecf\u8fc7 CDN \u670d\u52a1\u5668\u3002<\/p>\n<p>\u5f88\u660e\u663e\uff0c\u8fd9\u662f\u9519\u8bef\u4f7f\u7528 CDN \u5e26\u6765\u7684\u95ee\u9898\u3002\u8fd9\u5e26\u6765\u7684\u95ee\u9898\u4e0d\u4ec5\u662f\u4e0a\u9762\u63cf\u8ff0\u7684\u95ee\u9898\uff0c\u66f4\u5927\u7684\u4e1a\u52a1\u5b89\u5168\u95ee\u9898\uff1a\u5f53\u6240\u6709\u4e1a\u52a1\u6570\u636e\u90fd\u7ecf\u8fc7 CDN \u670d\u52a1\u5668\u65f6\uff0cCDN \u5382\u5546\u5c31\u6709\u4e86\u90a3\u4e9b\u4e1a\u52a1\u6570\u636e\uff0c\u8fd9\u76f8\u5f53\u4e8e\u628a\u94f6\u884c\u5361\u548c\u5bc6\u7801\u4ea4\u7ed9\u4e00\u4e2a\u4e2d\u95f4\u4eba\uff0c\u8981\u5b58\u94b1\u3001\u53d6\u94b1\u7684\u65f6\u5019\u5c31\u8ba9\u8fd9\u4e2a\u4e2d\u95f4\u4eba\u53bb ATM\/\u94f6\u884c \u5904\u7406\uff0c\u518d\u7ed9\u81ea\u5df1\u53cd\u9988\u7ed3\u679c\u3002\u6709\u8fd9\u4e48\u503c\u5f97\u4fe1\u8d56\u7684\u4e2d\u95f4\u4eba\u5417\uff1f\uff1f<\/p>\n<p><!--more--><\/p>\n<h3>\u6b63\u786e\u4f7f\u7528 CDN<\/h3>\n<p>\u5bf9\u4e8e\u8fd9\u4e2a\u95ee\u9898\uff0c\u6211\u7684\u5efa\u8bae\u662f\u542f\u7528\u4e00\u4e2a\u5b50\u57df\u540d\uff0c\u6bd4\u5982 <code>img.main.com<\/code>\uff0c\u6240\u6709\u9759\u6001\u8d44\u6e90\u90fd\u653e\u5728\u8fd9\u4e2a\u57df\u540d\u4e0b\uff0c\u8fd9\u4e2a\u57df\u540d\u7684 DNS \u89e3\u6790\u5230 CDN \u7684\u670d\u52a1\u5668\u4e0a\uff0c\u4e3b\u57df\u540d <code>main.com<\/code> \u4ecd\u7136\u89e3\u6790\u4e3a\u81ea\u5df1\u7684\u670d\u52a1\u5668\u3002\u8fd9\u6837\uff0c\u9759\u6001\u8d44\u6e90\u6709 CDN \u63d0\u4f9b\uff0c\u52a8\u6001\u8d44\u6e90\u4ecd\u7136\u662f\u81ea\u5df1\u7684\u670d\u52a1\u5668\u76f4\u63a5\u63d0\u4f9b\u3002<\/p>\n<ul>\n<li>\n<p>\u5173\u4e8e\u8fd9\u79cd\u4e24\u4e2a\u57df\u540d\u5b9e\u73b0\u52a8\u9759\u5206\u79bb\u7684\u5b9e\u73b0\uff0c\u6211\u4e4b\u524d\u89c1\u4e00\u4e2a\u540c\u4e8b\u628a <code>index<\/code> \u9875\u9762 \uff08\u6cdb\u6307\u51b3\u5b9a\u9875\u9762 JS \u6267\u884c\u65f6\u7684\u57df\u7684\u9875\u9762\uff09\u4e5f\u653e\u5230\u4e86 <code>img.main.com<\/code>\uff0c\u8fd9\u6837\uff0c\u5f53 <code>index<\/code> \u9875\u9762\u4e0a js \u5411 <code>main.com<\/code> \u8bf7\u6c42\u52a8\u6001\u65f6\uff0c\u5c31\u9762\u4e34\u8de8\u57df\u7684\u95ee\u9898\uff0c\u628a index \u9875\u9762\u653e\u56de <code>main.com<\/code> \u5c31\u53ef\u4ee5\u89e3\u51b3\u4e86\u3002\u5173\u4e8e\u8de8\u57df\u95ee\u9898\uff0c\u53ef\u53c2\u8003 <a href=\"http:\/\/coderbee.net\/index.php\/web\/20130703\/266\">html5 \u6587\u4ef6\u62d6\u62fd\u4e0a\u4f20\u53ca\u8de8\u57df\u5904\u7406<\/a> \u3001<a href=\"http:\/\/coderbee.net\/index.php\/readingnote\/20130722\/312\">\u767d\u5e3d\u5b50\u8bb2web\u5b89\u5168\uff0d2.\u5ba2\u6237\u7aef\u5b89\u5168 \u6458\u8bb0<\/a>\u3002<\/p>\n<\/li>\n<li>\n<p>\u4f7f\u7528 CDN \u5e26\u6765\u7684\u53e6\u4e00\u4e2a\u95ee\u9898\u662f\u83b7\u53d6\u5ba2\u6237\u7aef\u771f\u5b9e IP \u7684\u95ee\u9898\uff0c\u76f4\u63a5\u4f7f\u7528 <code>HttpServletRequest.getRemoteAddr()<\/code> \u662f\u6ca1\u6cd5\u62ff\u5230\u771f\u5b9e IP \u7684\uff0c\u8fd9\u4e2a\u95ee\u9898\u5728\u4f7f\u7528\u4e86\u53cd\u5411\u4ee3\u7406\u6216\u8d1f\u8f7d\u5747\u8861\u670d\u52a1\u5668\u65f6\u4e5f\u662f\u5b58\u5728\u7684\u3002\u4e00\u822c\u90fd\u662f\u7531\u53cd\u5411\u4ee3\u7406\u670d\u52a1\u5668\u628a\u771f\u5b9e\u7684 IP \u653e\u7f6e\u5728 HTTP \u7684\u8bf7\u6c42\u5934\u91cc\u900f\u4f20\u5230\u5e94\u7528\u670d\u52a1\u5668\uff0c\u8fd9\u4e2a\u8bf7\u6c42\u5934\u4e00\u822c\u547d\u540d\u4e3a <code>X-Forwarded-For<\/code>\uff0c\u5982\u679c\u4e2d\u95f4\u6709\u591a\u4e2a\u53cd\u5411\u4ee3\u7406\uff08\u6bd4\u5982\u6211\u4eec\u78b0\u5230\u7684\u662f CDN\uff09\uff0c\u90a3\u4e48\u975e\u76f4\u63a5\u9762\u5411\u7528\u6237\u7684\u53cd\u5411\u4ee3\u7406\u670d\u52a1\u5668\u628a\u4e0a\u4e00\u4e2a\u670d\u52a1\u5668\u7684 IP \u8ffd\u52a0\u5230  <code>X-Forwarded-For<\/code>\u5934\u540e\u9762\uff0c\u518d\u5f80\u540e\u4f20\uff0c\u76f4\u5230\u5e94\u7528\u670d\u52a1\u5668\u90a3\u91cc\u3002\u8fd9\u91cc\u8981\u6ce8\u610f\u7684\u6709\u4e2a\uff1a\u8fd9\u4e2a\u8bf7\u6c42\u5934\u7684\u7cbe\u786e\u540d\u79f0\uff08\u5927\u5c0f\u5199\u654f\u611f\uff09\u548cIP \u62fc\u63a5\u7684\u987a\u5e8f\uff08\u662f\u8ffd\u52a0\u5230\u540e\u9762\u8fd8\u662f\u63d2\u5165\u5230\u7b2c\u4e00\u4e2a\uff09\u3002\u7531\u4e8e\u4e0d\u540c\u7684\u53cd\u5411\u4ee3\u7406\u6216\u8d1f\u8f7d\u5747\u8861\u670d\u52a1\u5668\u5bf9\u8fd9\u4e2a\u8bbe\u7f6e\u53ef\u80fd\u4e0d\u540c\uff0c\u6240\u4ee5\u8fd9\u4e24\u4e2a\u95ee\u9898\u90fd\u662f\u9700\u8981\u786e\u8ba4\u7684\uff0c\u7136\u540e\u518d\u5728\u5e94\u7528\u4ee3\u7801\u91cc\u7f16\u5199\u83b7\u53d6\u771f\u5b9e IP \u7684\u4ee3\u7801\uff0c\u8fd9\u4e2a\u4ee3\u7801\u5e94\u8be5\u5c01\u88c5\u5728\u4e00\u4e2a\u5de5\u5177\u7c7b\u91cc\uff0c\u65b9\u4fbf\u4fee\u6539\uff08\u5728\u7b2c\u4e00\u5bb6\u516c\u53f8\u65f6\uff0c\u6240\u6709\u8bf7\u6c42\u90fd\u662f\u76f4\u63a5\u5230 Resin \u670d\u52a1\u5668\u7684\uff0c\u4ee3\u7801\u91cc\u53bb\u5ba2\u6237\u7aef IP \u90fd\u662f\u76f4\u63a5\u7528 <code>HttpServletRequest.getRemoteAddr()<\/code> \u3002\u540e\u6765\u6765\u4e86\u4e2a\u9879\u76ee\u7ecf\u7406\uff0c\u8981\u6c42\u7528 Nginx \u505a\u53cd\u5411\u4ee3\u7406\uff0c\u76f4\u63a5\u5904\u7406\u9759\u6001\u8d44\u6e90\u548c\u4ee3\u7406\u52a8\u6001\u8bf7\u6c42\uff0c\u4e5f\u5c31\u5f15\u5165\u4e86\u8fd9\u4e2a IP \u83b7\u53d6\u95ee\u9898\uff0c\u6240\u6709\u83b7\u53d6 IP \u7684\u5730\u65b9\u90fd\u8981\u66ff\u6362\uff0c\u73b0\u5728\u96c6\u7fa4\u4ec0\u4e48\u7684\u90a3\u4e48\u666e\u904d\uff0c\u8981\u9884\u5148\u89c4\u5212\u597d\uff09\u3002\u4e0b\u9762\u662f\u4e00\u4e2a\u7b80\u5355\u7684\u5c01\u88c5\u793a\u4f8b\uff1a<\/p>\n<\/li>\n<\/ul>\n<pre><code class=\"java\">package net.coderbee.demo.util;\n\nimport javax.servlet.http.HttpServletRequest;\nimport org.apache.commons.lang.StringUtils;\n\npublic class RequestUtil {\n     private static final String IP_SEP = \", \"; \/\/ \u8bf7\u6c42\u5934\u91cc\u6709\u591a\u4e2a IP \u5730\u5740\u65f6\u7684\u5206\u9694\u7b26\n\n     public static String getRemoteAddress(HttpServletRequest request) {\n          String ip = request.getHeader(\"X-Forwarded-For\");\n          if (StringUtils.isBlank(ip)) {\n               ip = request.getRemoteAddr();\n          }\n\n          if (ip.contains(IP_SEP)) {\n               String[] split = ip.split(IP_SEP);\n               ip = split[0]; \/\/ \u771f\u5b9e IP \u662f\u653e\u5728\u6700\u524d\u9762\u7684\n          }\n\n          return ip;\n     }\n}\n<\/code><\/pre>\n<ul>\n<li>\u5173\u4e8e\u4f7f\u7528 CDN \u8fd8\u8981\u6ce8\u610f\u7684\u662f CDN \u7684\u66f4\u65b0\u5ef6\u8fdf\u95ee\u9898\u3002\u5728\u4e0a\u5bb6\u516c\u53f8\u65f6\uff0c\u6709\u4e00\u4e2a\u5ba2\u6237\u7aef\u5b89\u88c5\u5305\u548c\u5347\u7ea7\u6587\u4ef6\u90fd\u662f\u7528 CDN \u6765\u5206\u53d1\u7684\uff0c\u6709\u4e00\u6b21\u53d1\u5e03\u7248\u672c\u540e\uff0c\u53d1\u73b0\u5ba2\u6237\u7aef\u4f1a\u63d0\u793a\u5347\u7ea7\uff0c\u4f46\u5347\u7ea7\u540e\u7684\u8fd8\u662f\u65e7\u7248\u672c\u7684\u6587\u4ef6\uff0c\u8fd8\u4ee5\u4e3a\u662f\u7a0b\u5e8f\u7684\u5347\u7ea7\u673a\u5236\u6709\u95ee\u9898\uff0c\u6298\u817e\u534a\u5929\uff0c\u6700\u540e\u53d1\u662f CDN \u66f4\u65b0\u5ef6\u8fdf\u7684\u95ee\u9898\u3002\u5bf9\u4e8e\u4f7f\u7528\u4e86 CDN \u7684\u670d\u52a1\uff0c\u53d1\u5e03\u7248\u672c\u540e\uff0c\u5982\u679c\u5728\u516c\u7f51\u4e0a\u9a8c\u8bc1\u53d1\u73b0\u6709\u95ee\u9898\u65f6\uff0c\u9996\u5148\u8981\u786e\u8ba4\u8bbf\u95ee\u5230\u7684\u786e\u5b9e\u662f\u53d1\u5e03\u540e\u7684\u8d44\u6e90\u3002<\/li>\n<\/ul>\n<hr\/>\n<p>\u6b22\u8fce\u5173\u6ce8\u6211\u7684\u5fae\u4fe1\u516c\u4f17\u53f7: <strong>coderbee\u7b14\u8bb0<\/strong>\uff0c\u53ef\u4ee5\u66f4\u53ca\u65f6\u56de\u590d\u4f60\u7684\u8ba8\u8bba\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" width=\"258\" height=\"258\" src=\"https:\/\/coderbee.net\/wp-content\/uploads\/2019\/01\/coderbee-note.jpg\" class=\"alignnone size-full wp-image-1707\"><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6545\u969c\u95ee\u9898 \u6700\u8fd1\u516c\u53f8\u7684\u4e00\u4e2a\u7cfb\u7edf\u7528\u4e0a\u4e86 CDN \u670d\u52a1\uff0c\u7528\u6237\u53cd\u5e94\u5feb\u591a\u4e86\uff0c\u90a3\u4e2a\u7cfb\u7edf\u4e3b\u8981\u662f &hellip; <a href=\"https:\/\/coderbee.net\/index.php\/notes\/20140829\/1035\">\u7ee7\u7eed\u9605\u8bfb <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[59],"tags":[192,194,193],"_links":{"self":[{"href":"https:\/\/coderbee.net\/index.php\/wp-json\/wp\/v2\/posts\/1035"}],"collection":[{"href":"https:\/\/coderbee.net\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/coderbee.net\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/coderbee.net\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/coderbee.net\/index.php\/wp-json\/wp\/v2\/comments?post=1035"}],"version-history":[{"count":3,"href":"https:\/\/coderbee.net\/index.php\/wp-json\/wp\/v2\/posts\/1035\/revisions"}],"predecessor-version":[{"id":1038,"href":"https:\/\/coderbee.net\/index.php\/wp-json\/wp\/v2\/posts\/1035\/revisions\/1038"}],"wp:attachment":[{"href":"https:\/\/coderbee.net\/index.php\/wp-json\/wp\/v2\/media?parent=1035"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/coderbee.net\/index.php\/wp-json\/wp\/v2\/categories?post=1035"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/coderbee.net\/index.php\/wp-json\/wp\/v2\/tags?post=1035"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}