springmvc登录拦截器

1、代码部分

package com.fly.handler;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.apache.shiro.SecurityUtils;
import org.apache.shiro.session.Session;
import org.springframework.web.servlet.handler.HandlerInterceptorAdapter;

import com.fly.common.contant.Constants;
import com.fly.model.User;

public class LoginHandlerInterceptor extends HandlerInterceptorAdapter {

/**
* @author:fly
* session无效验证（shiroSession方式）
*
*/
@Override
public boolean preHandle(HttpServletRequest request,
HttpServletResponse response, Object handler) throws Exception {
String path = request.getServletPath();
if(path.matches(Constants.NO_INTERCEPTOR_PATH)){
return true;
}else{
Session shiroSession = SecurityUtils.getSubject().getSession();
User user = (User) shiroSession.getAttribute(Constants.CURRENT_USER);
if(user==null){
response.sendRedirect(request.getContextPath()+"/login");
return false;
}
return true;
}
}

}

public static final String NO_INTERCEPTOR_PATH = ".*/((login)|(logout)|(code)).*";	//不对匹配该值的访问路径拦截（正则）

二、配置文件部分

<!-- 拦截器配置 -->
<mvc:interceptors>
<mvc:interceptor>
<mvc:mapping path="/*"/>
<bean class="com.fly.handler.LoginHandlerInterceptor"></bean>
</mvc:interceptor>
</mvc:interceptors>