{"id":910,"date":"2018-09-17T18:17:23","date_gmt":"2018-09-17T09:17:23","guid":{"rendered":"https:\/\/chat-messenger.com\/?p=910"},"modified":"2018-12-23T02:01:26","modified_gmt":"2018-12-22T17:01:26","slug":"http-log-filter","status":"publish","type":"post","link":"https:\/\/chat-messenger.com\/zh\/\u535a\u5ba2\/java\/http-\u65e5\u5fd7\u8fc7\u6ee4\u5668","title":{"rendered":"\u4f7f\u7528 Java \u65e5\u5fd7\u8fc7\u6ee4\u5668\u89e3\u6790 HTTP"},"content":{"rendered":"<h2 class=\"common_title\"><a name=\"0\">\u4f7f\u7528 Java \u65e5\u5fd7\u8fc7\u6ee4\u5668\u5206\u6790 HTTP \u8bf7\u6c42\u3002<\/a><\/h2>\n<p>\n<strong>javax.servlet.Filter.<\/strong>\u6765\u5b9e\u73b0\u89e3\u6790 HTTP \u8bf7\u6c42\u5185\u5bb9\u548c\u8f93\u51fa\u65e5\u5fd7\u7684\u4fbf\u6377\u65b9\u6cd5\u3002<strong>\u8fc7\u6ee4\u5668<\/strong>\u73ed\u7ea7<br \/>\n<br \/>\n\u6b64\u65e5\u5fd7\u8fc7\u6ee4\u5668\u4f7f\u7528 \"java.util.logging.Logger \"\u8fdb\u884c\u65e5\u5fd7\u8f93\u51fa\uff0c\u53ef\u901a\u8fc7\u66f4\u6539\u65e5\u5fd7\u7ea7\u522b\u6765\u6539\u53d8\u4fe1\u606f\u8f93\u51fa\u3002\n<\/p>\n<h2 class=\"common_title\"><a name=\"1\">\u4ec0\u4e48\u662f javax.servlet.Filter\uff1f<\/a><\/h2>\n<p>\n\u5728\u6784\u5efaWeb\u5e94\u7528\u65f6\uff0c\u9664\u4e86\u4e3b\u8981\u4e1a\u52a1\u5904\u7406\u4e4b\u5916\uff0c\u8fd8\u9700\u8981\u5728\u4e3b\u8981\u4e1a\u52a1\u5904\u7406\u524d\u540e\u8fdb\u884c\u5e38\u89c1\u7684\u4e8c\u6b21\u5904\u7406\u3002<br \/>\n\u4f8b\u5982\uff0c\u5ba2\u6237\u7aef\u8ba4\u8bc1\u3001\u6743\u9650\u68c0\u67e5\u3001\u65e5\u5fd7\u8bb0\u5f55\u7b49\u3002<br \/>\n\u5728\u6bcf\u4e2a\u8d44\u6e90\u4e2d\u5bf9\u8fd9\u79cd\u526f\u5904\u7406\u8fdb\u884c\u7f16\u7801\u6210\u4e3a\u963b\u788d\u8f6f\u4ef6\u53ef\u7ef4\u62a4\u6027\u7684\u4e3b\u8981\u539f\u56e0\uff0c\u5bfc\u81f4\u5e94\u7528\u7a0b\u5e8f\u96be\u4ee5\u7ef4\u62a4\u3002<\/p>\n<p>\u901a\u8fc7\u5b9e\u65bd javax.servlet.Filter\uff0c\u53ef\u4ee5\u5728\u8bf7\u6c42\u4f20\u9012\u7ed9 servlet \u7c7b\u4e4b\u524d\u5171\u540c\u6267\u884c\u8fd9\u79cd\u5b50\u5904\u7406\u3002<br \/>\n\u8fd8\u53ef\u4ee5\u5728 web.xml \u4e2d\u914d\u7f6e\u8fc7\u6ee4\u5668\uff0c\u8fd9\u6837\u5c31\u53ef\u4ee5\u7075\u6d3b\u5730\u6dfb\u52a0\u548c\u5220\u9664\u8fc7\u6ee4\u5668\uff0c\u800c\u65e0\u9700\u66f4\u6539\u6e90\u4ee3\u7801\u3002\n<\/p>\n<p><script type=\"text\/javascript\" src=\"https:\/\/chat-messenger.com\/js\/common.js?dd12sssas2223\" charset=\"UTF-8\"><\/script><br \/>\n<script type=\"text\/javascript\"> writePR(); <\/script><\/p>\n<h2 class=\"common_title\"><a name=\"2\">\u5c1d\u8bd5\u4f7f\u7528\u65e5\u5fd7\u8fc7\u6ee4\u5668\u3002<\/a><\/h2>\n<p>\u8ba9\u6211\u4eec\u5c06\u65e5\u5fd7\u8fc7\u6ee4\u5668\u4ed8\u8bf8\u5b9e\u8df5\uff0c\u901a\u8fc7\u8fc7\u6ee4\u5668\u6765\u5206\u6790 HTTP \u8bf7\u6c42\u3002<br \/>\n\u8fd9\u4e00\u6b21<a href=\"http:\/\/tomcat.apache.org\/\" target=\"_blank\">\u6c64\u59c6\u732b<\/a>\u4ece\u4e00\u5f00\u59cb\uff0cEXAMPLES \u5e94\u7528\u7a0b\u5e8f\u5c31\u53ef\u4ee5\u5728<br \/>\n\u8be5\u8fc7\u6ee4\u5668\u53ef\u901a\u8fc7\u4ee5\u4e0b\u8bbe\u7f6e\u7acb\u5373\u6267\u884c\u3002<\/p>\n<div class=\"point\">\n1.<a href=\"#4\"><strong>\u6e90\u4ee3\u7801<\/strong><\/a>\u5e76\u8fdb\u884c\u7f16\u8bd1\u3002<br \/>\n2. \u5c06\u7f16\u8bd1\u597d\u7684\u7c7b\u6587\u4ef6\u653e\u5728\"\/examples\/WEB-INF\/classes \"\u4e0b\u3002<br \/>\n3.\u5728 web.xml \u4e2d\u8bbe\u7f6e\u4ee5\u4e0b\u5b9a\u4e49\n<\/div>\n<pre class=\"sample_src\">  &lt; \u8fc7\u6ee4\u5668\r\n   LogFilter \u8fc7\u6ee4\u5668\u540d\r\n   LogFilter\uff08\u65e5\u5fd7\u8fc7\u6ee4\u5668\r\n   &lt;init-param\r\n    logging.Level&lt;\/\u53c2\u6570\u540d\u79f0\r\n    FINE \u53c2\u6570\u503c\r\n   &lt;\/init-param\r\n   &lt;\/filter\r\n  &lt; \u8fc7\u6ee4\u5668\u6620\u5c04\r\n   \u65e5\u5fd7\u8fc7\u6ee4\u5668&lt;\/\u8fc7\u6ee4\u5668\u540d\u79f0\r\n   \/* &lt;\/filter\r\n   \u8fc7\u6ee4\u5668\u6620\u5c04\r\n<\/pre>\n<p>*\u4f7f\u7528 Struts \u6846\u67b6\u65f6\uff0cURL \u6a21\u5f0f\u5982\u4e0b\u3002<\/p>\n<pre class=\"sample_src\">   *.do\u3002\r\n<\/pre>\n<p>\n\u68c0\u67e5\u8fd0\u884c\u4f1a\u8bdd\u793a\u4f8b\u5c4f\u5e55\u7684\u65e5\u5fd7\u8f93\u51fa\u7ed3\u679c\u3002<br \/>\n<img src=\"https:\/\/chat-messenger.com\/images\/SessionsExample.jpg\" alt=\"\u4f7f\u7528 javax.servlet.Filter \u65e5\u5fd7\u8fc7\u6ee4\u5668\u5206\u6790\u7f51\u7edc\u5e94\u7528\u7a0b\u5e8f\u3002\" border=\"0\"><br \/>\n<br clear=\"all\"><\/p>\n<h2 class=\"common_title\"><a name=\"3\">\u8f93\u51fa\u65e5\u5fd7\u4fe1\u606f\u548c\u65e5\u5fd7\u7ea7\u522b\u3002<\/a><\/h2>\n<p><strong>\u65e5\u5fd7\u8f93\u51fa\u5185\u5bb9<\/strong><\/p>\n<table border=\"1\">\n<tbody>\n<tr bgcolor=\"#FFFF80\">\n<th>\u65e5\u5fd7\u4fe1\u606f<\/th>\n<th>\u65e5\u5fd7\u7ea7\u522b<\/th>\n<\/tr>\n<tr>\n<td><strong>Cookie \u4fe1\u606f<\/strong><\/td>\n<td>\u7ea4\u7ec6<\/td>\n<\/tr>\n<tr>\n<td><strong>HTTP \u5934\u4fe1\u606f<\/strong><\/td>\n<td>\u7ea4\u7ec6<\/td>\n<\/tr>\n<tr>\n<td><strong>HTTP \u5176\u4ed6\u4fe1\u606f<\/strong><\/td>\n<td>\u7ea4\u7ec6<\/td>\n<\/tr>\n<tr>\n<td><strong>HTTP \u8bf7\u6c42\u53c2\u6570<\/strong><\/td>\n<td>\u914d\u7f6e<\/td>\n<\/tr>\n<tr>\n<td><strong>\u8bf7\u6c42\u8303\u56f4\u4e2d\u7684\u5bf9\u8c61<\/strong><\/td>\n<td>\u914d\u7f6e<\/td>\n<\/tr>\n<tr>\n<td><strong>\u4f1a\u8bdd\u4f5c\u7528\u57df\u4e2d\u7684\u5bf9\u8c61<\/strong><\/td>\n<td>\u914d\u7f6e<\/td>\n<\/tr>\n<tr>\n<td><strong>\u8bf7\u6c42\u524d\u540e\u7684\u5185\u5b58\u4f7f\u7528\u60c5\u51b5<\/strong><\/td>\n<td>\u914d\u7f6e<\/td>\n<\/tr>\n<tr>\n<td><strong>\u5c4f\u5e55\u8fc7\u6e21\u4fe1\u606f<\/strong><\/td>\n<td>\u4fe1\u606f<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n<p>\u5e94\u5728\u4ee5\u4e0b\u60c5\u51b5\u4e0b\u4f7f\u7528\u65e5\u5fd7\u7ea7\u522b<\/p>\n<ul>\n<li>\u7cbe\u7ec6...... \u8f93\u51fa\u6700\u8be6\u7ec6\u7684\u65e5\u5fd7\uff0c\u5982\u679c\u60a8\u60f3\u8be6\u7ec6\u5206\u6790 HTTP \u8bf7\u6c42\uff0c\u53ef\u8fdb\u884c\u8bbe\u7f6e\u3002<\/li>\n<li>CONFIG - \u8f93\u51fa\u66f4\u8be6\u7ec6\u7684\u65e5\u5fd7\u3002\u5efa\u8bae\u5728\u5f00\u53d1\u8fc7\u7a0b\u4e2d\u4fdd\u6301\u8fd9\u4e00\u6c34\u5e73\u3002<\/li>\n<li>INFO\u30fb\u30fb\u30fb\u30fb \u53ea\u8f93\u51fa\u5c4f\u5e55\u8fc7\u6e21\u4fe1\u606f\u3002<\/li>\n<\/ul>\n<p><strong>\u5982\u4f55\u66f4\u6539\u65e5\u5fd7\u7ea7\u522b\u3002<\/strong><br \/>\n\u65e5\u5fd7\u8f93\u51fa\u7ea7\u522b\u53ef\u901a\u8fc7\u8bbe\u7f6e\u521d\u59cb\u5316\u53c2\u6570 logging.Level.<br \/>\n\u4f8b\u5982<\/p>\n<pre class=\"sample_src\">   &lt;init-param\r\n    logging.Level&lt;\/\u53c2\u6570\u540d\u79f0\r\n    INFO\u3002\r\n<\/pre>\n\n<h2 class=\"common_title\"><a name=\"4\">\u6e90\u4ee3\u7801<\/a><\/h2>\n<p><textarea readonly=\"readonly\" style=\"font-size: 13px;height: 400px;\" class=\"src\" onclick=\"this.focus();this.select()\">import java.io.IOException;<br \/>\nimport java.io.UnsupportedEncodingException;<br \/>\nimport java.sql.Time;<br \/>\nimport java.text.DecimalFormat;<br \/>\nimport java.text.SimpleDateFormat;<br \/>\nimport java.util.Date;<br \/>\nimport java.util.Enumeration;<br \/>\nimport java.util.Hashtable;<br \/>\nimport java.util.Iterator;<br \/>\nimport java.util.Map;<br \/>\nimport java.util.TreeMap;<br \/>\nimport java.util.logging.Formatter;<br \/>\nimport java.util.logging.Handler;<br \/>\nimport java.util.logging.Level;<br \/>\nimport java.util.logging.LogManager;<br \/>\nimport java.util.logging.LogRecord;<br \/>\nimport java.util.logging.Logger;<br \/>\nimport java.util.logging.StreamHandler;<\/p>\n<p>\u5bfc\u5165 javax.servlet.Filter;<br \/>\n\u5bfc\u5165 javax.servlet.FilterChain;<br \/>\n\u5bfc\u5165 javax.servlet.FilterConfig;<br \/>\n\u5bfc\u5165 javax.servlet.ServletException;<br \/>\n\u5bfc\u5165 javax.servlet.ServletRequest;<br \/>\n\u5bfc\u5165 javax.servlet.ServletResponse;<br \/>\n\u5bfc\u5165javax.servlet.http.Cookie\uff1b<br \/>\n\u5bfc\u5165 javax.servlet.http.HttpServletRequest;<br \/>\n\u5bfc\u5165 javax.servlet.http.HttpServletResponse;<br \/>\n\u5bfc\u5165 javax.servlet.http.HttpSession;<\/p>\n<p>\/**<br \/>\n * \u5b9e\u73b0javax.servlet.Filter\u6765\u5206\u6790HTTP\u8bf7\u6c42\u5185\u5bb9\u5e76\u8f93\u51fa\u65e5\u5fd7<br \/>\n * \u8fc7\u6ee4\u5668\u7c7b\u3002<br \/>\n *\/<br \/>\n\u516c\u5171\u7c7b LogFilter \u5b9e\u73b0 Filter {<\/p>\n<p>    \u79c1\u6709\u9759\u6001\u8bb0\u5f55\u5668\u8bb0\u5f55\u5668=<br \/>\n        Logger.getLogger(LogFilter.class.getName());<br \/>\n    \u79c1\u6709\u9759\u6001\u6700\u7ec8\u5b57\u7b26\u4e32 LINE_SEPA =<br \/>\n        System.getProperty(\u201cline.separator\u201d);<br \/>\n    \u79c1\u6709\u9759\u6001\u6700\u7ec8\u5b57\u7b26\u4e32NEXT_PAGE =\u201cLogFilter.NEXT_PAGE\u201d;<\/p>\n<p>    \/**<br \/>\n     * \u521d\u59cb\u5316\u8be5\u65e5\u5fd7\u8fc7\u6ee4\u5668\u3002<br \/>\n     * @\u53c2\u6570\u6620\u5c04<br \/>\n     *\/<br \/>\n    \u516c\u5171\u65e0\u6548\u521d\u59cb\u5316\uff08FilterConfig\u6620\u5c04\uff09{<br \/>\n        String str = mapping.getInitParameter(\u201clogging.Level\u201d);<br \/>\n        System.out.println(\u201c\u8bbe\u7f6e\u65e5\u5fd7\u7ea7\u522b\u4e3a\u201c+str+\u201d\u3002\u201d);<br \/>\n        \u7ea7\u522b level = null;<br \/>\n        \u5c1d\u8bd5 {<br \/>\n            \u7ea7\u522b = Level.parse(str);<br \/>\n        } catch (\u5f02\u5e38 e) {<br \/>\n            e.printStackTrace();<br \/>\n            \u7ea7\u522b = \u7ea7\u522b.INFO;<br \/>\n        }<br \/>\n        LogManager.getLogManager().reset();<br \/>\n        \u5904\u7406\u7a0b\u5e8f handler = new CustomConsoleHandler();<br \/>\n        handler.setFormatter(new CustomFormatter());<br \/>\n        handler.setLevel(\u7ea7\u522b);<br \/>\n        logger.setLevel(\u7ea7\u522b);<br \/>\n        logger.getParent().addHandler(\u5904\u7406\u7a0b\u5e8f);<br \/>\n    }<\/p>\n<p>    \/**<br \/>\n     * \u8fd9\u662f\u4e00\u4e2a\u8f93\u51fa\u65e5\u5fd7\u7684\u8fc7\u6ee4\u5668\u3002<br \/>\n     * @param request \u6b63\u5728\u5904\u7406\u7684HTTP\u8bf7\u6c42<br \/>\n     * @param response \u6b63\u5728\u751f\u6210 HTTP \u54cd\u5e94<br \/>\n     * @\u53c2\u6570\u94fe<br \/>\n     *\/<br \/>\n    \u516c\u5171\u65e0\u6548 doFilter(ServletRequest _request, ServletResponse _response,<br \/>\n            FilterChain \u94fe\uff09\u629b\u51fa IOException\u3001ServletException {<\/p>\n<p>        \/\/ --------------------\u201c\u9884\u5904\u7406\u201d<br \/>\n        HttpServletRequest \u8bf7\u6c42 = (HttpServletRequest)_request;<br \/>\n        HttpServletResponse \u54cd\u5e94 = (HttpServletResponse) _response;<br \/>\n        \u5982\u679c\uff08logger.isLoggable\uff08Level.CONFIG\uff09\uff09{<br \/>\n            \u8bb0\u5f55\u5668.config(<br \/>\n                \u201c============\u8bf7\u6c42\u5f00\u59cb\uff01\uff01\u201d<br \/>\n                +\u201c\u7ebf\u7a0bID\uff1a\u201d<br \/>\n                + Thread.currentThread().hashCode()<br \/>\n                + &#8221; ========================================================&#8221;);<br \/>\n        }<br \/>\n        \/\/ \u5185\u5b58\u4f7f\u7528\u60c5\u51b5<br \/>\n        \u5b57\u7b26\u4e32actionMemory = null;<br \/>\n        \u5982\u679c\uff08logger.isLoggable\uff08Level.CONFIG\uff09\uff09{<br \/>\n            \u52a8\u4f5c\u5185\u5b58 = getMemoryInfo(\u201d \u201d<br \/>\n                    + new Time(System.currentTimeMillis()) + \u201dRequest[\u4e0a\u4e00\u4e2a]\u201d);<br \/>\n        }<br \/>\n        \u5982\u679c (logger.isLoggable(Level.FINE)) {<br \/>\n            logger.fine(\u201cCookie \u4fe1\u606f\u201d + getCookieInfo(request));<br \/>\n        }<br \/>\n        \u5982\u679c (logger.isLoggable(Level.FINE)) {<br \/>\n            logger.fine(\u201cHTTP\u5934\u4fe1\u606f\u201d + getHeadersInfo(request));<br \/>\n        }<br \/>\n        \u5982\u679c (logger.isLoggable(Level.FINE)) {<br \/>\n            \u8bb0\u5f55\u5668<br \/>\n                    .fine(\u201cHTTP\u5176\u4ed6\u4fe1\u606f\u201d + getRequestOtherInfo(request));<br \/>\n        }<br \/>\n        \u5982\u679c\uff08logger.isLoggable\uff08Level.CONFIG\uff09\uff09{<br \/>\n            \u5b57\u7b26\u4e32 reqlog = getRequestParametersInfo(request);<br \/>\n            logger.config(\u201cHTTP\u8bf7\u6c42\u53c2\u6570\u201d + reqlog);<br \/>\n        }<br \/>\n        \u5982\u679c\uff08logger.isLoggable\uff08Level.CONFIG\uff09\uff09{<br \/>\n            logger.config(\u201c\u8bf7\u6c42\u8303\u56f4\u5bf9\u8c61\u201d<br \/>\n                    + getRequestAttributeInfo(\u8bf7\u6c42));<br \/>\n        }<br \/>\n        \u5982\u679c\uff08logger.isLoggable\uff08Level.CONFIG\uff09\uff09{<br \/>\n            \u5b57\u7b26\u4e32 sessionlog = getSessionInfo(request,true);<br \/>\n            logger.config(\u201c\u4f1a\u8bdd\u8303\u56f4\u5bf9\u8c61\uff08\u8bf7\u6c42\u5904\u7406\u4e4b\u524d\uff09\u201d<br \/>\n                    + \u4f1a\u8bdd\u65e5\u5fd7\uff09\uff1b<br \/>\n        }<\/p>\n<p>        \/\/ \u8c03\u7528\u4e0b\u4e00\u4e2a\u8fc7\u6ee4\u5668<br \/>\n        chain.doFilter(\u8bf7\u6c42\uff0c\u54cd\u5e94);<\/p>\n<p>        \/\/  -  -  -  -  -  -  -  -  -  -  \u201c\u540e\u671f\u5904\u7406\u201d<br \/>\n        \u5982\u679c\uff08logger.isLoggable\uff08Level.CONFIG\uff09\uff09{<br \/>\n            \u5b57\u7b26\u4e32 sessionlog = getSessionInfo(request,false);<br \/>\n            logger.config(\u201c\u4f1a\u8bdd\u8303\u56f4\u5bf9\u8c61\uff08\u8bf7\u6c42\u5904\u7406\u540e\uff09\u201d<br \/>\n                    + \u4f1a\u8bdd\u65e5\u5fd7\uff09\uff1b<br \/>\n        }<br \/>\n        \/\/ \u5185\u5b58\u4f7f\u7528\u60c5\u51b5<br \/>\n        \u5982\u679c\uff08logger.isLoggable\uff08Level.CONFIG\uff09\uff09{<br \/>\n            actionMemory = \u201d\u8bf7\u6c42\u524d\u540e\u7684\u5185\u5b58\u4f7f\u7528\u60c5\u51b5\u201d+LINE_SEPA<br \/>\n                    + \u52a8\u4f5c\u5185\u5b58 + LINE_SEPA<br \/>\n                    + getMemoryInfo(\u201d \u201d + new Time(System.currentTimeMillis())<br \/>\n                            +\u201c\u8bf7\u6c42[\u4e4b\u540e]\u201d\uff09\uff1b<br \/>\n            logger.config(actionMemory+LINE_SEPA);<\/p>\n<p>        }<br \/>\n        \/\/ \u5c4f\u5e55\u8f6c\u6362\u4fe1\u606f<br \/>\n        \u5982\u679c (logger.isLoggable(Level.INFO)) {<br \/>\n            String nextPage = (String) request.getAttribute(NEXT_PAGE);<br \/>\n            if (nextPage == null || nextPage.length() == 0) {<br \/>\n                \u4e0b\u4e00\u9875 = request.getRequestURI();<br \/>\n            }<br \/>\n            logger.info(\u201cNEXT_PAGE=[\u201d + nextPage + \u201c], \u201d<br \/>\n                    + \u201cIP_ADDRESS=[\u201d + request.getRemoteAddr() + \u201c], \u201d<br \/>\n                    + \u201cSESSION_ID=[\u201d + request.getSession().getId() + \u201c], \u201d<br \/>\n                    + \u201cUSER-AGENT=[\u201d + request.getHeader(\u201c\u7528\u6237\u4ee3\u7406\u201d) + \u201c]\u201d);<br \/>\n        }<br \/>\n        \u5982\u679c\uff08logger.isLoggable\uff08Level.CONFIG\uff09\uff09{<br \/>\n            \u8bb0\u5f55\u5668.config(<br \/>\n                \u201c============\u8bf7\u6c42\u7ed3\u675f\uff01\uff01\u201d<br \/>\n                +\u201d\u7ebf\u7a0bID:\u201d+ Thread.currentThread().hashCode()<br \/>\n                + &#8221; =========================================================&#8221;<br \/>\n                +LINE_SEPA+LINE_SEPA);<br \/>\n        }<br \/>\n    }<\/p>\n<p>    \/**<br \/>\n     *<br \/>\n     *\/<br \/>\n    \u516c\u5171\u65e0\u6548\u9500\u6bc1\uff08\uff09{<br \/>\n    }<\/p>\n<p>    \/\/ \uff0d\uff0d\uff0d\uff0d\uff0d\uff0d\uff0d\uff0d\uff0d\uff0d \u4e0b\u9762\u7684\u79c1\u6709\u65b9\u6cd5 \uff0d\uff0d\uff0d\uff0d\uff0d\uff0d\uff0d\uff0d\uff0d\uff0d\uff0d\uff0d<br \/>\n    \u79c1\u6709\u9759\u6001 String getMemoryInfo(String message) {<br \/>\n        DecimalFormat dFromat = new DecimalFormat(\u201c#,###KB\u201d);<br \/>\n        \u957f\u7a7a\u95f2 = Runtime.getRuntime().freeMemory() \/ 1024;<br \/>\n        \u957f\u603b\u8ba1 = Runtime.getRuntime().totalMemory() \/ 1024;<br \/>\n        \u957f\u6700\u5927\u503c = Runtime.getRuntime().maxMemory() \/ 1024;<br \/>\n        \u4f7f\u7528\u65f6\u95f4\u957f=\u603b\u8ba1-\u514d\u8d39\uff1b<br \/>\n        String msg = \u6d88\u606f + \u201d : \u201d + \u201ctotal=\u201d + dFromat.format(total) + \u201c, \u201d<br \/>\n                + \u201c\u5df2\u4f7f\u7528\u91cf=\u201d + dFromat.format(\u5df2\u4f7f\u7528) + \u201d (\u201d + (\u5df2\u4f7f\u7528 * 100 \/ \u603b\u8ba1)<br \/>\n                + \u201c%), \u6700\u5927\u53ef\u7528=\u201d + dFromat.format(max);<br \/>\n        \u8fd4\u56de\u6d88\u606f\uff1b<br \/>\n    }<br \/>\n    \/**<br \/>\n     * \u5c06\u6240\u6709\u8bf7\u6c42\u5934\u8f93\u51fa\u5230\u65e5\u5fd7\u4e2d\u3002<br \/>\n     *\/<br \/>\n    \u79c1\u6709\u9759\u6001\u5b57\u7b26\u4e32 getHeadersInfo(HttpServletRequest \u8bf7\u6c42) {<br \/>\n        StringBuffer buff = new StringBuffer(LINE_SEPA);<br \/>\n        \u679a\u4e3e headerNames = request.getHeaderNames();<br \/>\n        while (headerNames.hasMoreElements()) {<br \/>\n            String headerName = (String) headerNames.nextElement();<br \/>\n            buff.append(\u201c\u201d);<br \/>\n            buff.append(headerName);<br \/>\n            buff.append(\u201c=\u201d);<br \/>\n            buff.append(request.getHeader(headerName));<br \/>\n            buff.append(LINE_SEPA);<br \/>\n        }<br \/>\n        \u8fd4\u56de buff.toString();<br \/>\n    }<br \/>\n    \u79c1\u6709\u9759\u6001\u5b57\u7b26\u4e32 getCookieInfo(HttpServletRequest \u8bf7\u6c42) {<br \/>\n        StringBuffer buff = new StringBuffer();<br \/>\n        Cookie[] cookies = request.getCookies();<br \/>\n        if (cookies == null) {<br \/>\n            \u8fd4\u56de \u201d\u201d;<br \/>\n        }<br \/>\n        for (int i = 0; i &lt; cookies.length; i++) {<br \/>\n            buff.append(\u201c\\n \u2014 Cookie[\u201d + i + \u201c] \u2014\\n\u201d);<br \/>\n            buff.append(\u201c\u201d);<br \/>\n            buff.append(cookies[i].getName());<br \/>\n            buff.append(\u201c=\u201d);<br \/>\n            buff.append(cookies[i].getValue());<br \/>\n            buff.append(LINE_SEPA);<br \/>\n            buff.append(\u201c\u201d);<br \/>\n            buff.append(\u201cgetVersion()\u201d);<br \/>\n            buff.append(\u201c=\u201d);<br \/>\n            buff.append(cookies[i].getVersion());<br \/>\n            buff.append(LINE_SEPA);<br \/>\n            buff.append(\u201c\u201d);<br \/>\n            buff.append(\u201cgetComment()\u201d);<br \/>\n            buff.append(\u201c=\u201d);<br \/>\n            buff.append(cookies[i].getComment());<br \/>\n            buff.append(LINE_SEPA);<br \/>\n            buff.append(\u201c\u201d);<br \/>\n            buff.append(\u201cgetDomain()\u201d);<br \/>\n            buff.append(\u201c=\u201d);<br \/>\n            buff.append(cookies[i].getDomain());<br \/>\n            buff.append(LINE_SEPA);<br \/>\n            buff.append(\u201c\u201d);<br \/>\n            buff.append(\u201cgetMaxAge()\u201d);<br \/>\n            buff.append(\u201c=\u201d);<br \/>\n            buff.append(cookies[i].getMaxAge());<br \/>\n            buff.append(LINE_SEPA);<br \/>\n            buff.append(\u201c\u201d);<br \/>\n            buff.append(\u201cgetPath()\u201d);<br \/>\n            buff.append(\u201c=\u201d);<br \/>\n            buff.append(cookies[i].getPath());<br \/>\n            buff.append(LINE_SEPA);<br \/>\n            buff.append(\u201c\u201d);<br \/>\n            buff.append(\u201cgetSecure()\u201d);<br \/>\n            buff.append(\u201c=\u201d);<br \/>\n            buff.append(cookies[i].getSecure());<br \/>\n            buff.append(LINE_SEPA);<br \/>\n        }<br \/>\n        \u8fd4\u56de buff.toString();<br \/>\n    }<br \/>\n    \u79c1\u6709\u9759\u6001\u5b57\u7b26\u4e32 getRequestParametersInfo(HttpServletRequest \u8bf7\u6c42) {<br \/>\n        StringBuffer buff = new StringBuffer(LINE_SEPA);<br \/>\n        \u5730\u56femap=convertRequest(request);<br \/>\n        TreeMap trr = new TreeMap(map);<br \/>\n        \u8fed\u4ee3\u5668 itr = trr.keySet().iterator();<br \/>\n        while (itr.hasNext()) {<br \/>\n            \u5b57\u7b26\u4e32\u952e = (\u5b57\u7b26\u4e32) itr.next();<br \/>\n            buff.append(\u201c\u201d);<br \/>\n            buff.append(key);<br \/>\n            buff.append(\u201c=\u201d);<br \/>\n            \u5bf9\u8c61\u503c=map.get(key);<br \/>\n            String[]\u503c=(String[])\u503c\uff1b<br \/>\n            if (values.length == 1) {<br \/>\n                buff.append(\u503c[0]);<br \/>\n            } \u522b\u7684 {<br \/>\n                \/\/ \u5b57\u7b26\u4e32\u6570\u7ec4\u8f6c\u6362<br \/>\n                \u5b57\u7b26\u4e32 strValue = \u5c42\uff08\u503c\uff09\uff1b<br \/>\n                buff.append(strValue);<br \/>\n            }<br \/>\n            buff.append(LINE_SEPA);<br \/>\n        }<br \/>\n        \u8fd4\u56de buff.toString();<br \/>\n    }<br \/>\n    \u79c1\u6709\u9759\u6001\u5b57\u7b26\u4e32 getRequestAttributeInfo(HttpServletRequest \u8bf7\u6c42) {<br \/>\n        StringBuffer buff = new StringBuffer(LINE_SEPA);<br \/>\n        \u679a\u4e3e e = request.getAttributeNames();<br \/>\n        while (e.hasMoreElements()) {<br \/>\n            \u5b57\u7b26\u4e32\u540d\u79f0 = (String) e.nextElement();<br \/>\n            buff.append(\u201d \u540d\u79f0=\u201d + \u540d\u79f0 + \u201c, attributeClass= \u201d<br \/>\n                    + request.getAttribute(name).getClass().getName()<br \/>\n                    + \u201c, toString() = \u201d + request.getAttribute(name)<br \/>\n                    + LINE_SEPA);<br \/>\n        }<br \/>\n        \u8fd4\u56de buff.toString();<br \/>\n    }<br \/>\n    \u79c1\u6709\u9759\u6001\u5b57\u7b26\u4e32 getRequestOtherInfo(HttpServletRequest \u8bf7\u6c42) {<br \/>\n        StringBuffer buff = new StringBuffer();<br \/>\n        buff.append(LINE_SEPA);<br \/>\n        buff.append(\u201dgetCharacterEncoding()=\u201d);<br \/>\n        buff.append(request.getCharacterEncoding());<br \/>\n        buff.append(LINE_SEPA);<br \/>\n        buff.append(\u201cgetContentLength()=\u201d);<br \/>\n        buff.append(request.getContentLength());<br \/>\n        buff.append(LINE_SEPA);<br \/>\n        buff.append(\u201dgetContentType()=\u201d);<br \/>\n        buff.append(request.getContentType());<br \/>\n        buff.append(LINE_SEPA);<br \/>\n        buff.append(\u201dgetLocale()=\u201d);<br \/>\n        buff.append(request.getLocale());<br \/>\n        buff.append(LINE_SEPA);<br \/>\n        buff.append(\u201dgetProtocol()=\u201d);<br \/>\n        buff.append(request.getProtocol());<br \/>\n        buff.append(LINE_SEPA);<br \/>\n        buff.append(\u201dgetRemoteAddr()=\u201d);<br \/>\n        buff.append(request.getRemoteAddr());<br \/>\n        buff.append(LINE_SEPA);<br \/>\n        buff.append(\u201dgetRemoteHost()=\u201d);<br \/>\n        buff.append(request.getRemoteHost());<br \/>\n        buff.append(LINE_SEPA);<br \/>\n        buff.append(\u201dgetScheme()=\u201d);<br \/>\n        buff.append(request.getScheme());<br \/>\n        buff.append(LINE_SEPA);<br \/>\n        buff.append(\u201dgetServerName()=\u201d);<br \/>\n        buff.append(request.getServerName());<br \/>\n        buff.append(LINE_SEPA);<br \/>\n        buff.append(\u201dgetServerPort()=\u201d);<br \/>\n        buff.append(request.getServerPort());<br \/>\n        buff.append(LINE_SEPA);<br \/>\n        buff.append(\u201disSecure()=\u201d);<br \/>\n        buff.append(request.isSecure());<br \/>\n        buff.append(LINE_SEPA);<br \/>\n        buff.append(\u201dgetAuthType()=\u201d);<br \/>\n        buff.append(request.getAuthType());<br \/>\n        buff.append(LINE_SEPA);<br \/>\n        buff.append(\u201dgetContextPath()=\u201d);<br \/>\n        buff.append(request.getContextPath());<br \/>\n        buff.append(LINE_SEPA);<br \/>\n        buff.append(\u201cgetMethod()=\u201d);<br \/>\n        buff.append(request.getMethod());<br \/>\n        buff.append(LINE_SEPA);<br \/>\n        buff.append(\u201dgetPathInfo()=\u201d);<br \/>\n        buff.append(request.getPathInfo());<br \/>\n        buff.append(LINE_SEPA);<br \/>\n        buff.append(\u201cgetPathTranslated()=\u201d);<br \/>\n        buff.append(request.getPathTranslated());<br \/>\n        buff.append(LINE_SEPA);<br \/>\n        buff.append(\u201dgetQueryString()=\u201d);<br \/>\n        buff.append(request.getQueryString());<br \/>\n        buff.append(LINE_SEPA);<br \/>\n        buff.append(\u201dgetRemoteUser()=\u201d);<br \/>\n        buff.append(request.getRemoteUser());<br \/>\n        buff.append(LINE_SEPA);<br \/>\n        buff.append(\u201dgetRequestedSessionId()=\u201d);<br \/>\n        buff.append(request.getRequestedSessionId());<br \/>\n        buff.append(LINE_SEPA);<br \/>\n        buff.append(\u201cgetRequestURI()=\u201d);<br \/>\n        buff.append(request.getRequestURI());<br \/>\n        buff.append(LINE_SEPA);<br \/>\n        buff.append(\u201dgetServletPath()=\u201d);<br \/>\n        buff.append(request.getServletPath());<br \/>\n        buff.append(LINE_SEPA);<br \/>\n        buff.append(\u201dgetUserPrincipal()=\u201d);<br \/>\n        buff.append(request.getUserPrincipal());<br \/>\n        buff.append(LINE_SEPA);<br \/>\n        buff.append(\u201disRequestedSessionIdFromCookie()=\u201d);<br \/>\n        buff.append(request.isRequestedSessionIdFromCookie());<br \/>\n        buff.append(LINE_SEPA);<br \/>\n        buff.append(\u201disRequestedSessionIdFromURL()=\u201d);<br \/>\n        buff.append(request.isRequestedSessionIdFromURL());<br \/>\n        buff.append(LINE_SEPA);<br \/>\n        buff.append(\u201disRequestedSessionIdValid()=\u201d);<br \/>\n        buff.append(request.isRequestedSessionIdValid());<br \/>\n        buff.append(LINE_SEPA);<br \/>\n        \u8fd4\u56de buff.toString();<br \/>\n    }<\/p>\n<p>    private static String getSessionInfo(HttpServletRequest request,boolean before) {<br \/>\n        HttpSession \u4f1a\u8bdd = request.getSession();<br \/>\n        StringBuffer buff = new StringBuffer();<br \/>\n        buff.append(LINE_SEPA);<br \/>\n        \u5982\u679c\uff08\u4e4b\u524d\uff09{<br \/>\n            buff.append(\u201d session.isNew() = \u201d + session.isNew());<br \/>\n            buff.append(LINE_SEPA);<br \/>\n            buff.append(\u201d session.getId() = \u201d + session.getId());<br \/>\n            buff.append(LINE_SEPA);<br \/>\n        }<br \/>\n        \u679a\u4e3e e = session.getAttributeNames();<br \/>\n        while (e.hasMoreElements()) {<br \/>\n            String sessionName = (String) e.nextElement();<br \/>\n            String sessionClassName = session.getAttribute(sessionName)<br \/>\n                    .getClass().getName();<br \/>\n            buff.append(\u201d name =\u201d + sessionName + \u201c, value =\u201d<br \/>\n                    + session.getAttribute(sessionName) + \u201c, attributeClass = \u201d<br \/>\n                    + \u4f1a\u8bdd\u7c7b\u540d\u79f0+LINE_SEPA);<br \/>\n        }<br \/>\n        \u8fd4\u56de buff.toString();<br \/>\n    }<\/p>\n<p>    \u79c1\u6709\u9759\u6001Hashtable ConvertRequest\uff08HttpServletRequest\u8bf7\u6c42\uff09{<br \/>\n        Hashtable tempHash = new Hashtable();<br \/>\n        \u679a\u4e3e e = request.getParameterNames();<br \/>\n        while (e.hasMoreElements()) {<br \/>\n            String key = (String) e.nextElement();<br \/>\n            String[]values=request.getParameterValues(key);<br \/>\n            String[]\u53c2\u6570\u503c=new String[values.length];<br \/>\n            for (int i = 0; i &lt; \u503c.length; i++) {<br \/>\n                \u53c2\u6570\u503c[i] = convUnicode(\u503c[i]);<br \/>\n            }<br \/>\n            tempHash.put(key, \u53c2\u6570\u503c);<br \/>\n        }<br \/>\n        \u8fd4\u56de\u4e34\u65f6\u54c8\u5e0c\u503c\uff1b<\/p>\n<p>    }<br \/>\n    \u79c1\u6709\u9759\u6001\u5b57\u7b26\u4e32\u5c42\uff08\u5bf9\u8c61\u503c\uff09{<br \/>\n        \u5982\u679c\uff08\u503c==\u7a7a\uff09{<br \/>\n            \u8fd4\u56de\u201c\u7a7a\u201d\uff1b<br \/>\n        } else if (value instanceof String[]) {<br \/>\n            \u8fd4\u56de convString((String[]) \u503c);<br \/>\n        } \u522b\u7684 {<br \/>\n            \u8fd4\u56de\u503c.toString();<br \/>\n        }<br \/>\n    }<\/p>\n<p>    \/**<br \/>\n     * \u5c06\u5b57\u7b26\u4e32\u6570\u7ec4 [strArray] \u7684\u5185\u5bb9\u4f5c\u4e3a\u5b57\u7b26\u4e32\u8fd4\u56de\uff0c\u5982\u4e0b\u6240\u793a\u3002<br \/>\n     *\u201c[\u6e29\u5ea61\uff0c\u6e29\u5ea62\uff0c\u6e29\u5ea63]\u201d<br \/>\n     * @param strArray \u8981\u8ba1\u7b97\u7684\u5b57\u7b26\u4e32\u6570\u7ec4<br \/>\n     * @return \u8f6c\u6362\u540e\u7684\u5b57\u7b26\u4e32<br \/>\n     *\/<br \/>\n    \u79c1\u6709\u9759\u6001\u5b57\u7b26\u4e32 convString(String[] strArray) {<br \/>\n        if (strArray == null)<br \/>\n            \u8fd4\u56de\u7a7a\u503c\uff1b<br \/>\n        StringBuffer buff = new StringBuffer(\u201c[\u201d);<br \/>\n        for (int i = 0; i &lt; strArray.length; i++) {<br \/>\n            buff.append(strArray[i] + \u201c, \u201c);<br \/>\n        }<br \/>\n        buff.delete(buff.length() \u2013 2, buff.length());<br \/>\n        buff.append(\u201c]\u201d);<br \/>\n        \u8fd4\u56de buff.toString();<br \/>\n    }<\/p>\n<p>    \/**<br \/>\n     * \u5c06 [str] \u8f6c\u6362\u4e3a Unicode\u3002<br \/>\n     * @\u53c2\u6570str<br \/>\n     * @\u8fd4\u56de<br \/>\n     *\/<br \/>\n    \u79c1\u6709\u9759\u6001\u5b57\u7b26\u4e32 convUnicode(\u5b57\u7b26\u4e32 str) {<br \/>\n        if (str == null)<br \/>\n            \u8fd4\u56de\u7a7a\u503c\uff1b<br \/>\n        \u5c1d\u8bd5 {<br \/>\n            \u8fd4\u56de\u65b0\u5b57\u7b26\u4e32\uff08str.getBytes\uff08\u201c8859_1\u201d\uff09\uff0c\u201cJISAutoDetect\u201d\uff09\uff1b<br \/>\n        } catch (UnsupportedEncodingException e) {<br \/>\n            \u629b\u51fa\u65b0\u7684\u8fd0\u884c\u65f6\u5f02\u5e38\uff08e\uff09\uff1b<br \/>\n        }<br \/>\n    }<br \/>\n    \/\/ &#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8211;<br \/>\n    \u9759\u6001\u7c7b CustomFormatter \u6269\u5c55 Formatter {<br \/>\n        \u9759\u6001\u6700\u7ec8\u5b57\u7b26\u4e32\u6a21\u5f0f=\u201cyyyy\/MM\/dd HH:mm:ss\u201d\uff1b<br \/>\n        \u516c\u5171\u540c\u6b65\u5b57\u7b26\u4e32\u683c\u5f0f\uff08LogRecord\u8bb0\u5f55\uff09{<br \/>\n            StringBuffer buf = new StringBuffer();<br \/>\n            \/\/ \u8bbe\u7f6e\u65e5\u671f\u548c\u65f6\u95f4<br \/>\n            \u65e5\u671f\u65e5\u671f = \u65b0\u65e5\u671f();<br \/>\n            date.setTime(record.getMillis());<br \/>\n            SimpleDateFormat \u683c\u5f0f\u5316\u7a0b\u5e8f = new SimpleDateFormat(pattern);<br \/>\n            buf.append(formatter.format(\u65e5\u671f));<br \/>\n            buf.append(\u201c:\u201d);<br \/>\n            \/\/ \u8bbe\u7f6e\u7ea7\u522b<br \/>\n            buf.append(\u201c[\u201d + record.getLevel().getName() + \u201c]\u201d);<br \/>\n            buf.append(\u201c:\u201d);<br \/>\n            buf.append(record.getMessage());<br \/>\n            buf.append(LINE_SEPA);<br \/>\n            \u8fd4\u56de buf.toString();<br \/>\n        }<br \/>\n    }<br \/>\n    \u9759\u6001\u7c7b CustomConsoleHandler \u6269\u5c55 StreamHandler {<br \/>\n        \u516c\u5171 CustomConsoleHandler() {<br \/>\n            \u6781\u597d\u7684\uff08\uff09;<br \/>\n            setOutputStream(System.out);<br \/>\n        }<br \/>\n        \/**<br \/>\n         * \u53d1\u51fa\u65e5\u5fd7\u8bb0\u5f55\u3002<br \/>\n         * \u6700\u521d\uff0c\u8bb0\u5f55\u8bf7\u6c42\u88ab\u53d1\u9001\u5230 Logger \u5bf9\u8c61\u3002<br \/>\n         * \u8be5\u5bf9\u8c61\u521d\u59cb\u5316 LogRecord \u5e76<br \/>\n         *\u91cd\u5b9a\u5411\u81f3\u6b64\u5904\u3002<br \/>\n         *<br \/>\n         * @param record \u65e5\u5fd7\u4e8b\u4ef6\u7684\u63cf\u8ff0\u3002\u7a7a\u8bb0\u5f55\u88ab\u7b80\u5355\u5730\u5ffd\u7565<br \/>\n         * \u5e76\u4e14\u4e0d\u4f1a\u53d1\u9001\u4efb\u4f55\u901a\u77e5\u3002<br \/>\n         *\/<br \/>\n        \u516c\u5171\u65e0\u6548\u53d1\u5e03\uff08LogRecord\u8bb0\u5f55\uff09{<br \/>\n            \u8d85\u7ea7.\u53d1\u5e03(\u8bb0\u5f55);<br \/>\n            \u51b2\u6d17\uff08\uff09\uff1b<br \/>\n        }<br \/>\n        \/**<br \/>\n         * \u91cd\u5199 StreamHandler.close \u6765\u5237\u65b0\uff0c\u4f46\u662f<br \/>\n         * \u8f93\u51fa\u6d41\u672a\u5173\u95ed\u3002\u6362\u53e5\u8bdd\u8bf4\uff0cSystem.err \u6ca1\u6709\u5173\u95ed\u3002<br \/>\n         *\/<br \/>\n        \u516c\u5171\u65e0\u6548\u5173\u95ed\uff08\uff09{<br \/>\n            \u51b2\u6d17\uff08\uff09\uff1b<br \/>\n        }<br \/>\n    }<br \/>\n}<br \/>\n<\/textarea><\/p>","protected":false},"excerpt":{"rendered":"<p>\u4f7f\u7528 Java \u65e5\u5fd7\u8fc7\u6ee4\u5668\u5206\u6790 HTTP \u8bf7\u6c42 \u5b9e\u73b0 javax.servlet.Filter \u6765\u5206\u6790 HTTP \u8bf7\u6c42 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