{"id":1709,"date":"2017-07-28T15:27:52","date_gmt":"2017-07-28T07:27:52","guid":{"rendered":"http:\/\/www.xttblog.com\/?p=1709"},"modified":"2017-07-28T15:27:52","modified_gmt":"2017-07-28T07:27:52","slug":"%e8%af%a6%e8%a7%a3springmvc%e6%8b%a6%e6%88%aa%e5%99%a8%e6%80%a7%e8%83%bd%e7%9b%91%e6%8e%a7%e5%92%8c%e7%99%bb%e5%bd%95%e6%a3%80%e6%b5%8b%e6%a1%88%e4%be%8b","status":"publish","type":"post","link":"https:\/\/www.xttblog.com\/?p=1709","title":{"rendered":"\u8be6\u89e3SpringMVC\u62e6\u622a\u5668\u6027\u80fd\u76d1\u63a7\u548c\u767b\u5f55\u68c0\u6d4b\u6848\u4f8b"},"content":{"rendered":"<p>\n\t\u672c\u6587\u7ed3\u5408\u4e00\u4e2aSpringMVC\u62e6\u622a\u5668\u5728\u5b9e\u9645\u9879\u76ee\u4e2d\u7684\u4f8b\u5b50\u8fdb\u884c\u89e3\u91caSpringMVC\u7684\u4f7f\u7528\u573a\u666f\u3002\n<\/p>\n<p>\n\t\u4e0b\u9762\u5148\u770b\u4e00\u4e2a\u6027\u80fd\u76d1\u63a7\u7684\u4f8b\u5b50\u5427\u3002\n<\/p>\n<p>\n\t\u5982\u8bb0\u5f55\u4e00\u4e0b\u8bf7\u6c42\u7684\u5904\u7406\u65f6\u95f4\uff0c\u5f97\u5230\u4e00\u4e9b\u6162\u8bf7\u6c42\uff08\u5982\u5904\u7406\u65f6\u95f4\u8d85\u8fc7500\u6beb\u79d2\uff09\uff0c\u4ece\u800c\u8fdb\u884c\u6027\u80fd\u6539\u8fdb\uff0c\u4e00\u822c\u7684\u53cd\u5411\u4ee3\u7406\u670d\u52a1\u5668\u5982apache\u90fd\u5177\u6709\u8fd9\u4e2a\u529f\u80fd\uff0c\u4f46\u6b64\u5904\u6211\u4eec\u6f14\u793a\u4e00\u4e0b\u4f7f\u7528\u62e6\u622a\u5668\u600e\u4e48\u5b9e\u73b0\u3002\n<\/p>\n<h2>\n\t\u5b9e\u73b0\u5206\u6790<br \/>\n<\/h2>\n<ul>\n<li>\n\t\t\u5728\u8fdb\u5165\u5904\u7406\u5668\u4e4b\u524d\u8bb0\u5f55\u5f00\u59cb\u65f6\u95f4\uff0c\u5373\u5728\u62e6\u622a\u5668\u7684preHandle\u8bb0\u5f55\u5f00\u59cb\u65f6\u95f4\uff1b\n\t<\/li>\n<li>\n\t\t\u5728\u7ed3\u675f\u8bf7\u6c42\u5904\u7406\u4e4b\u540e\u8bb0\u5f55\u7ed3\u675f\u65f6\u95f4\uff0c\u5373\u5728\u62e6\u622a\u5668\u7684afterCompletion\u8bb0\u5f55\u7ed3\u675f\u5b9e\u73b0\uff0c\u5e76\u7528\u7ed3\u675f\u65f6\u95f4-\u5f00\u59cb\u65f6\u95f4\u5f97\u5230\u8fd9\u6b21\u8bf7\u6c42\u7684\u5904\u7406\u65f6\u95f4\u3002\n\t<\/li>\n<\/ul>\n<p>\n\t\u95ee\u9898\uff1a<br \/>\n\t\u6211\u4eec\u7684\u62e6\u622a\u5668\u662f\u5355\u4f8b\uff0c\u56e0\u6b64\u4e0d\u7ba1\u7528\u6237\u8bf7\u6c42\u591a\u5c11\u6b21\u90fd\u53ea\u6709\u4e00\u4e2a\u62e6\u622a\u5668\u5b9e\u73b0\uff0c\u5373\u7ebf\u7a0b\u4e0d\u5b89\u5168\uff0c\u90a3\u6211\u4eec\u5e94\u8be5\u600e\u4e48\u8bb0\u5f55\u65f6\u95f4\u5462\uff1f<br \/>\n\t\u89e3\u51b3\u65b9\u6848\u662f\u4f7f\u7528ThreadLocal\uff0c\u5b83\u662f\u7ebf\u7a0b\u7ed1\u5b9a\u7684\u53d8\u91cf\uff0c\u63d0\u4f9b\u7ebf\u7a0b\u5c40\u90e8\u53d8\u91cf\uff08\u4e00\u4e2a\u7ebf\u7a0b\u4e00\u4e2aThreadLocal\uff0cA\u7ebf\u7a0b\u7684ThreadLocal\u53ea\u80fd\u770b\u5230A\u7ebf\u7a0b\u7684ThreadLocal\uff0c\u4e0d\u80fd\u770b\u5230B\u7ebf\u7a0b\u7684ThreadLocal\uff09\u3002\n<\/p>\n<pre class=\"brush:java;\">\r\npackage com.xttblog.chapter5.web.interceptor;  \r\npublic class StopWatchHandlerInterceptor extends HandlerInterceptorAdapter {  \r\n    private NamedThreadLocal&lt;Long&gt;  startTimeThreadLocal =   \r\n\t\tnew NamedThreadLocal&lt;Long&gt;(&quot;StopWatch-StartTime&quot;);  \r\n    @Override  \r\n    public boolean preHandle(HttpServletRequest request, \r\n\t\tHttpServletResponse response,   \r\n\t\tObject handler) throws Exception {  \r\n        long beginTime = System.currentTimeMillis();\/\/1\u3001\u5f00\u59cb\u65f6\u95f4  \r\n        startTimeThreadLocal.set(beginTime);\/\/\u7ebf\u7a0b\u7ed1\u5b9a\u53d8\u91cf\uff08\u8be5\u6570\u636e\u53ea\u6709\u5f53\u524d\u8bf7\u6c42\u7684\u7ebf\u7a0b\u53ef\u89c1\uff09  \r\n        return true;\/\/\u7ee7\u7eed\u6d41\u7a0b  \r\n    }  \r\n      \r\n    @Override  \r\n    public void afterCompletion(HttpServletRequest request, \r\n\t\tHttpServletResponse response,   \r\n\t\tObject handler, Exception ex) throws Exception {  \r\n        long endTime = System.currentTimeMillis();\/\/2\u3001\u7ed3\u675f\u65f6\u95f4  \r\n        long beginTime = startTimeThreadLocal.get();\/\/\u5f97\u5230\u7ebf\u7a0b\u7ed1\u5b9a\u7684\u5c40\u90e8\u53d8\u91cf\uff08\u5f00\u59cb\u65f6\u95f4\uff09  \r\n        long consumeTime = endTime - beginTime;\/\/3\u3001\u6d88\u8017\u7684\u65f6\u95f4  \r\n        if(consumeTime &gt; 500) {\/\/\u6b64\u5904\u8ba4\u4e3a\u5904\u7406\u65f6\u95f4\u8d85\u8fc7500\u6beb\u79d2\u7684\u8bf7\u6c42\u4e3a\u6162\u8bf7\u6c42  \r\n            \/\/TODO \u8bb0\u5f55\u5230\u65e5\u5fd7\u6587\u4ef6  \r\n            System.out.println(  \r\n\t\tString.format(&quot;%s consume %d millis&quot;, request.getRequestURI(), consumeTime));  \r\n        }          \r\n    }  \r\n}  <\/pre>\n<p>\n\tNamedThreadLocal\uff1aSpring\u63d0\u4f9b\u7684\u4e00\u4e2a\u547d\u540d\u7684ThreadLocal\u5b9e\u73b0\u3002\n<\/p>\n<p>\n\t\u5728\u6d4b\u8bd5\u65f6\u9700\u8981\u628astopWatchHandlerInterceptor\u653e\u5728\u62e6\u622a\u5668\u94fe\u7684\u7b2c\u4e00\u4e2a\uff0c\u8fd9\u6837\u5f97\u5230\u7684\u65f6\u95f4\u624d\u662f\u6bd4\u8f83\u51c6\u786e\u7684\u3002\n<\/p>\n<h2>\n\t\u767b\u5f55\u68c0\u6d4b<br \/>\n<\/h2>\n<p>\n\t\u5728\u8bbf\u95ee\u67d0\u4e9b\u8d44\u6e90\u65f6\uff08\u5982\u8ba2\u5355\u9875\u9762\uff09\uff0c\u9700\u8981\u7528\u6237\u767b\u5f55\u540e\u624d\u80fd\u67e5\u770b\uff0c\u56e0\u6b64\u9700\u8981\u8fdb\u884c\u767b\u5f55\u68c0\u6d4b\u3002\n<\/p>\n<p>\n\t\u5904\u7406\u6d41\u7a0b\uff1a\n<\/p>\n<ol>\n<li>\n\t\t\u8bbf\u95ee\u9700\u8981\u767b\u5f55\u7684\u8d44\u6e90\u65f6\uff0c\u7531\u62e6\u622a\u5668\u91cd\u5b9a\u5411\u5230\u767b\u5f55\u9875\u9762\uff1b\n\t<\/li>\n<li>\n\t\t\u5982\u679c\u8bbf\u95ee\u7684\u662f\u767b\u5f55\u9875\u9762\uff0c\u62e6\u622a\u5668\u4e0d\u5e94\u8be5\u62e6\u622a\uff1b\n\t<\/li>\n<li>\n\t\t\u7528\u6237\u767b\u5f55\u6210\u529f\u540e\uff0c\u5f80cookie\/session\u6dfb\u52a0\u767b\u5f55\u6210\u529f\u7684\u6807\u8bc6\uff08\u5982\u7528\u6237\u7f16\u53f7\uff09\uff1b\n\t<\/li>\n<li>\n\t\t\u4e0b\u6b21\u8bf7\u6c42\u65f6\uff0c\u62e6\u622a\u5668\u901a\u8fc7\u5224\u65adcookie\/session\u4e2d\u662f\u5426\u6709\u8be5\u6807\u8bc6\u6765\u51b3\u5b9a\u7ee7\u7eed\u6d41\u7a0b\u8fd8\u662f\u5230\u767b\u5f55\u9875\u9762\uff1b\n\t<\/li>\n<li>\n\t\t\u5728\u6b64\u62e6\u622a\u5668\u8fd8\u5e94\u8be5\u5141\u8bb8\u6e38\u5ba2\u8bbf\u95ee\u7684\u8d44\u6e90\u3002\n\t<\/li>\n<\/ol>\n<p>\n\t\u62e6\u622a\u5668\u4ee3\u7801\u5982\u4e0b\u6240\u793a\uff1a\n<\/p>\n<pre class=\"brush:java;\">\r\n@Override  \r\npublic boolean preHandle(HttpServletRequest request, \r\n\tHttpServletResponse response,   \r\n\tObject handler) throws Exception {  \r\n    \/\/1\u3001\u8bf7\u6c42\u5230\u767b\u5f55\u9875\u9762 \u653e\u884c  \r\n    if(request.getServletPath().startsWith(loginUrl)) {  \r\n        return true;  \r\n    }  \r\n    \/\/2\u3001TODO \u6bd4\u5982\u9000\u51fa\u3001\u9996\u9875\u7b49\u9875\u9762\u65e0\u9700\u767b\u5f55\uff0c\u5373\u6b64\u5904\u8981\u653e\u884c \u5141\u8bb8\u6e38\u5ba2\u7684\u8bf7\u6c42  \r\n          \r\n    \/\/3\u3001\u5982\u679c\u7528\u6237\u5df2\u7ecf\u767b\u5f55 \u653e\u884c    \r\n    if(request.getSession().getAttribute(&quot;username&quot;) != null) {  \r\n        \/\/\u66f4\u597d\u7684\u5b9e\u73b0\u65b9\u5f0f\u7684\u4f7f\u7528cookie  \r\n        return true;  \r\n    }      \r\n    \/\/4\u3001\u975e\u6cd5\u8bf7\u6c42 \u5373\u8fd9\u4e9b\u8bf7\u6c42\u9700\u8981\u767b\u5f55\u540e\u624d\u80fd\u8bbf\u95ee  \r\n    \/\/\u91cd\u5b9a\u5411\u5230\u767b\u5f55\u9875\u9762  \r\n    response.sendRedirect(request.getContextPath() + loginUrl);  \r\n    return false;  \r\n}  <\/pre>\n<p>\n\t\u63d0\u793a\uff1a\u63a8\u8350\u80fd\u4f7f\u7528servlet\u89c4\u8303\u4e2d\u7684\u8fc7\u6ee4\u5668Filter\u5b9e\u73b0\u7684\u529f\u80fd\u5c31\u7528Filter\u5b9e\u73b0\uff0c\u56e0\u4e3aHandlerInteceptor\u53ea\u6709\u5728Spring Web MVC\u73af\u5883\u4e0b\u624d\u80fd\u4f7f\u7528\uff0c\u56e0\u6b64Filter\u662f\u6700\u901a\u7528\u7684\u3001\u6700\u5148\u5e94\u8be5\u4f7f\u7528\u7684\u3002\u5982\u767b\u5f55\u8fd9\u79cd\u62e6\u622a\u5668\u6700\u597d\u4f7f\u7528Filter\u6765\u5b9e\u73b0\u3002\n<\/p>\n<p>\n\t\u9644\u4e0a\u672c\u6587\u5b8c\u6574\u6e90\u4ee3\u7801\u4e0b\u8f7d\u94fe\u63a5\uff1a<a href=\"http:\/\/pan.baidu.com\/s\/1i5qrVBv\" name=\"SpringMVC\u6559\u7a0b\" target=\"_blank\" title=\"\">http:\/\/pan.baidu.com\/s\/1i5qrVBv<\/a>&nbsp;\u5bc6\u7801\uff1afo9v<\/p>\n<!-- <audio autoplay=\"autoplay\" height=\"100\" width=\"100\" hidden=\"true\"><source src=\"https:\/\/c.coka.la\/orAvPR.mp3\" type=\"audio\/mp3\"\/><\/audio><img decoding=\"async\" src=\"https:\/\/images.weserv.nl\/?url=https:\/\/ws3.sinaimg.cn\/large\/8fa5dcfcgy1g4em3rzar5j20ib089ae0.jpg\" alt=\"\u4e1a\u4f59\u8349\u516c\u4f17\u53f7\"\/> --><p><!-- <img decoding=\"async\" src=\"https:\/\/raw.githubusercontent.com\/xmt1139057136\/xttblog\/master\/8fa5dcfcgy1g4em3rzar5j20ib089ae0.jpg\" alt=\"\u4e1a\u4f59\u8349\u516c\u4f17\u53f7\"\/>--><img decoding=\"async\" src=\"https:\/\/saas.51autoparts.cn\/api\/admin\/sys-file\/oss\/file?fileName=84db51f8561e448f9a4fda2eff0811f9.jpg\" alt=\"\u4e1a\u4f59\u8349\u516c\u4f17\u53f7\"\/><\/p><p>\u6700\u540e\uff0c\u6b22\u8fce\u5173\u6ce8\u6211\u7684\u4e2a\u4eba\u5fae\u4fe1\u516c\u4f17\u53f7\uff1a\u4e1a\u4f59\u8349\uff08yyucao\uff09\uff01<b>\u53ef\u52a0\u4f5c\u8005\u5fae\u4fe1\u53f7\uff1a<font color=\"red\">xttblog2<\/font>\u3002\u5907\u6ce8\uff1a\u201c1\u201d\uff0c\u6dfb\u52a0\u535a\u4e3b\u5fae\u4fe1\u62c9\u4f60\u8fdb\u5fae\u4fe1\u7fa4\u3002\u5907\u6ce8\u9519\u8bef\u4e0d\u4f1a\u540c\u610f\u597d\u53cb\u7533\u8bf7\u3002<\/b>\u518d\u6b21\u611f\u8c22\u60a8\u7684\u5173\u6ce8\uff01\u540e\u7eed\u6709\u7cbe\u5f69\u5185\u5bb9\u4f1a\u7b2c\u4e00\u65f6\u95f4\u53d1\u7ed9\u60a8\uff01\u539f\u521b\u6587\u7ae0\u6295\u7a3f\u8bf7\u53d1\u9001\u81f3532009913@qq.com\u90ae\u7bb1\u3002\u5546\u52a1\u5408\u4f5c\u4e5f\u53ef\u6dfb\u52a0\u4f5c\u8005\u5fae\u4fe1\u8fdb\u884c\u8054\u7cfb\uff01<\/p><p>\u672c\u6587\u539f\u6587\u51fa\u5904\uff1a<a href=\"https:\/\/www.xttblog.com\">\u4e1a\u4f59\u8349<\/a>\uff1a &raquo; <a href=\"https:\/\/www.xttblog.com\/?p=1709\">\u8be6\u89e3SpringMVC\u62e6\u622a\u5668\u6027\u80fd\u76d1\u63a7\u548c\u767b\u5f55\u68c0\u6d4b\u6848\u4f8b<\/a><\/p><!-- <div class=\"bd-reward-stl\"><button id=\"bdRewardBtn\"><span><\/span><\/button><\/div> -->","protected":false},"excerpt":{"rendered":"<p>\u672c\u6587\u7ed3\u5408\u4e00\u4e2aSpringMVC\u62e6\u622a\u5668\u5728\u5b9e\u9645\u9879\u76ee\u4e2d\u7684\u4f8b\u5b50\u8fdb\u884c\u89e3\u91caSpringMVC\u7684\u4f7f\u7528\u573a\u666f\u3002 \u4e0b\u9762\u5148\u770b\u4e00\u4e2a\u6027\u80fd [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5],"tags":[1359,413,532,1400],"class_list":["post-1709","post","type-post","status-publish","format-standard","hentry","category-java","tag-spring-mvc-","tag-springmvc","tag-threadlocal","tag-1400"],"_links":{"self":[{"href":"https:\/\/www.xttblog.com\/index.php?rest_route=\/wp\/v2\/posts\/1709","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.xttblog.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.xttblog.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.xttblog.com\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.xttblog.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1709"}],"version-history":[{"count":1,"href":"https:\/\/www.xttblog.com\/index.php?rest_route=\/wp\/v2\/posts\/1709\/revisions"}],"predecessor-version":[{"id":1710,"href":"https:\/\/www.xttblog.com\/index.php?rest_route=\/wp\/v2\/posts\/1709\/revisions\/1710"}],"wp:attachment":[{"href":"https:\/\/www.xttblog.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1709"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.xttblog.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1709"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.xttblog.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1709"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}