使用HandlerInterceptor拦截器,可以拦截请求,实现通用的日志管理操作
一、添加拦截器类
在"src/main/java"代码文件夹的"org.xs.demo1"的包下新建"LogInterceptor.java"类:
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package org.xs.demo1; import java.text.SimpleDateFormat; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import org.springframework.core.NamedThreadLocal; import org.springframework.web.servlet.HandlerInterceptor; import org.springframework.web.servlet.ModelAndView; /** * 日志拦截器 * @author ThinkGem */ public class LogInterceptor implements HandlerInterceptor { private final Logger log = LoggerFactory.getLogger(getClass().getName()); private static final ThreadLocal<Long> startTimeThreadLocal = new NamedThreadLocal<Long>( "ThreadLocal StartTime" ); /** * 预处理 */ @Override public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception { long beginTime = System.currentTimeMillis(); //开始时间 startTimeThreadLocal.set(beginTime); //线程绑定变量(该数据只有当前请求的线程可见) log.info( "开始计时: {}" , new SimpleDateFormat( "hh:mm:ss.SSS" ).format(beginTime)); return true ; } /** * 返回处理 */ @Override public void postHandle(HttpServletRequest request, HttpServletResponse response, Object handler, ModelAndView modelAndView) throws Exception { if (modelAndView != null ){ log.info( "ViewName: " + modelAndView.getViewName()); } } /** * 后处理 */ @Override public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex) throws Exception { // 保存日志 //LogUtils.saveLog(request, handler, ex, null); // 输出日志信息 log.info( "访问地址:" + request.getRequestURI() + ",执行方式:" + request.getMethod()); long beginTime = startTimeThreadLocal.get(); //得到线程绑定的局部变量(开始时间) long endTime = System.currentTimeMillis(); //结束时间 log.info( "计时结束:{}" , new SimpleDateFormat( "hh:mm:ss.SSS" ).format(endTime)); } } |
二、修改配置文件
修改spring-mvc.xml件,加入:
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<!-- 拦截器配置 --> < mvc:interceptors > < mvc:interceptor > < mvc:mapping path = "/**" /> < bean class = "org.xs.demo1.LogInterceptor" /> </ mvc:interceptor > </ mvc:interceptors > |
三、运行测试
访问"http://localhost:8080/demo1/hello/list2"地址
可以看到拦截器中输出的日志信息了
实例代码地址:spring-HandlerInterceptor.rar
以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持服务器之家。
原文链接:http://www.cnblogs.com/ctxsdhy/p/6421067.html