浅谈springMVC拦截器和过滤器总结

<beans xmlns="http://www.springframework.org/schema/beans"    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"    xmlns:p="http://www.springframework.org/schema/p"    xmlns:context="http://www.springframework.org/schema/context"    xmlns:mvc="http://www.springframework.org/schema/mvc"       xsi:schemaLocation="http://www.springframework.org/schema/beans            http://www.springframework.org/schema/beans/spring-beans-3.1.xsd            http://www.springframework.org/schema/context            http://www.springframework.org/schema/context/spring-context-3.1.xsd            http://www.springframework.org/schema/mvc            http://www.springframework.org/schema/mvc/spring-mvc-3.1.xsd            http://www.springframework.org/schema/tx            ">

  <!--编写拦截器-->  <mvc:interceptors>    <!--对特定的url拦截-->    <mvc:interceptor>      <mvc:mapping path="/test.do"/>      <bean class="com.hbut.interceptor.TestInterceptor"/>    </mvc:interceptor>    <mvc:interceptor>      <!--对特定的模块拦截第一级别拦截-->      <mvc:mapping path="/test/×/"/>      <bean class="com.hbut.interceptor.TestInterceptor1"/>    </mvc:interceptor>    <mvc:interceptor>      <!--对特定的模块拦截-->      <mvc:mapping path="/test/×"/>      <bean class="com.hbut.interceptor.TestInterceptor2"/>    </mvc:interceptor>  </mvc:interceptors>

 <mvc:interceptors>   <bean class="org.springframework.web.servlet.i18n.LocaleChangeInterceptor"/> </mvc:interceptors>

package com.hbut.interceptor;import org.springframework.web.servlet.HandlerInterceptor;import org.springframework.web.servlet.ModelAndView;import javax.servlet.http.HttpServletRequest;import javax.servlet.http.HttpServletResponse;/** * @Author XiJun.Gong * @DATE 2016/6/1. * aim:  com.hbut.interceptor */public class TestInterceptor implements HandlerInterceptor {  @Override  public boolean preHandle(HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse, Object o) throws Exception {       //todo 在此处添加要操作code    System.out.println("preHandle");     return true; //todo 此处为false时，请求不会到达control层  }  @Override  public void postHandle(HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse, Object o, ModelAndView modelAndView) throws Exception {    System.out.println("postHandle"); //todo 可以用来修改信息，跳转等  }  @Override  public void afterCompletion(HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse, Object o, Exception e) throws Exception {    System.out.println("afterCompletion"); //todo 最后执行  }}

package com.hbut.interceptor;import org.springframework.ui.ModelMap;import org.springframework.web.context.request.WebRequest;import org.springframework.web.context.request.WebRequestInterceptor;/** * @Author XiJun.Gong * @DATE 2016/6/1. * aim:  com.hbut.interceptor */public class Test2Interceptor implements WebRequestInterceptor {  @Override  public void preHandle(WebRequest webRequest) throws Exception {  }  @Override  public void postHandle(WebRequest webRequest, ModelMap modelMap) throws Exception {  }  @Override  public void afterCompletion(WebRequest webRequest, Exception e) throws Exception {  }}