springmvc拦截器的配置、使用
1.自定义拦截器,实现HandlerInterceptor接口
package com.bybo.aca.web.interceptor;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.springframework.web.servlet.HandlerInterceptor;
import org.springframework.web.servlet.ModelAndView;
public class Login implements HandlerInterceptor {
@Override
public void afterCompletion(HttpServletRequest httpRequest,
HttpServletResponse httpResponse, Object arg2, Exception arg3)
throws Exception {
}
@Override
public void postHandle(HttpServletRequest arg0, HttpServletResponse arg1,
Object arg2, ModelAndView arg3) throws Exception {
}
@Override
public boolean preHandle(HttpServletRequest request, HttpServletResponse response,
Object object) throws Exception {
/*HttpServletRequest httpRequest = (HttpServletRequest) request;
HttpServletResponse httpResponse = (HttpServletResponse) response;*/
String urlString = request.getRequestURI();
///olForum/forumList.html模拟登录页
if(urlString.endsWith("forumList.html")){
return true;
}
//请求的路径
String contextPath=request.getContextPath();
/*httpRequest.getRequestDispatcher("/olForum/forumList").forward(httpRequest, httpResponse);*/
/*response.sendRedirect(contextPath+"/olForum/forumList.html");*/
response.sendRedirect(contextPath + "/olForum/forumList.html?login=aaa");
return false;
/*httpResponse.sendRedirect(httpRequest.getContextPath()+"/olForum/forumList.html");
return;*/
}
}
2、springmvc配置文件中配置
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:aop="http://www.springframework.org/schema/aop"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:p="http://www.springframework.org/schema/p"
xsi:schemaLocation="http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd
http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd
http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd">
<!-- 扫描controller(controller层注入) -->
<context:component-scan base-package="com.bybo.aca.web.controller"/>
<mvc:interceptors>
<!-- 使用bean定义一个Interceptor,直接定义在mvc:interceptors根下面的Interceptor将拦截所有的请求 -->
<!-- <bean class="com.bybo.aca.web.interceptor.Login"/> -->
<mvc:interceptor>
<!-- 进行拦截:/**表示拦截所有controller -->
<mvc:mapping path="/**" />
<!-- 不进行拦截 -->
<mvc:exclude-mapping path="/index.html"/>
<bean class="com.bybo.aca.web.interceptor.Login"/>
</mvc:interceptor>
</mvc:interceptors>
<bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver"
p:prefix="/WEB-INF/views/" p:suffix=".jsp"/>
</beans>
原文出处:
[1] super超人, springmvc拦截器的配置、使用, https://www.cnblogs.com/super-chao/p/6496428.html
Reference:
[2] jinnianshilongnian, 五章 处理器拦截器详解——跟着开涛学SpringMVC, http://jinnianshilongnian.iteye.com/blog/1670856/