SpringMVC拦截器

时间：2017-05-16 00:41:45 阅读：217 评论：0 收藏：0 [点我收藏+]

配置springmvc.xml代码：

[java] view plain copy

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 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.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"
default-autowire="byName">
<context:annotation-config />
<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
<property name="basePackage" value="com.anxin.msapweb.db.mybatis.mapper" />
</bean>
<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
<property name="dataSource" ref="db2dataSource" />
</bean>
<mvc:interceptors>
<mvc:interceptor>
<mvc:mapping path="/*.do" />
<mvc:mapping path="/*.ajax" />
<mvc:mapping path="/*.htm" />
<mvc:mapping path="/*/*.do" />
<mvc:mapping path="/*/*.ajax" />
<mvc:mapping path="/*/*.htm" />
<mvc:exclude-mapping path="/login.htm"/>
<bean class="com.anxin.msapweb.web.interceptor.SecurityInterceptor" />
</mvc:interceptor>
</mvc:interceptors>
</beans>

Java代码：

[java] view plain copy

package com.anxin.msapweb.web.interceptor;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import org.springframework.web.servlet.HandlerInterceptor;
import org.springframework.web.servlet.ModelAndView;
import com.anxin.msapweb.common.Config;
public class SecurityInterceptor implements HandlerInterceptor {
private static final String LOGIN_URL = "/login.htm";
@Override
public boolean preHandle(HttpServletRequest req, HttpServletResponse res, Object handler) throws Exception {
HttpSession session = req.getSession(true);
// 从session 里面获取用户名的信息
Object obj = session.getAttribute(Config.Passport.SESSION_NAME_LOGIN_RESULT);
// 判断如果没有取到用户信息，就跳转到登陆页面，提示用户进行登陆
if (obj == null || "".equals(obj.toString())) {
res.sendRedirect(LOGIN_URL);
}
return true;
}
@Override
public void postHandle(HttpServletRequest req, HttpServletResponse res, Object arg2, ModelAndView arg3) throws Exception {
}
@Override
public void afterCompletion(HttpServletRequest req, HttpServletResponse res, Object arg2, Exception arg3) throws Exception {
}
}

原文地址：http://www.cnblogs.com/mfc-itblog/p/6859039.html

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