SpringBoot学习：整合shiro（rememberMe记住我后自动登录session失效解决办法）

╰半橙微兮° 2022-07-03 17:53 146阅读 0赞

项目下载地址：http://download.csdn.NET/detail/aqsunkai/9805821

定义一个拦截器，判断用户是通过记住我登录时，查询数据库后台自动登录，同时把用户放入session中。

配置拦截器也很简单，Spring 为此提供了基础类WebMvcConfigurerAdapter ，我们只需要重写addInterceptors 方法添加注册拦截器。

实现自定义拦截器只需要3步：

1、创建我们自己的拦截器类并实现 HandlerInterceptor 接口。

2、创建一个Java类继承WebMvcConfigurerAdapter，并重写 addInterceptors 方法。

3、实例化我们自定义的拦截器，然后将对像手动添加到拦截器链中（在addInterceptors方法中添加）。

package com.sun.configuration;
    
    import org.springframework.context.annotation.Bean;
    import org.springframework.context.annotation.Configuration;
    import org.springframework.core.Ordered;
    import org.springframework.core.io.support.PropertiesLoaderUtils;
    import org.springframework.web.servlet.config.annotation.InterceptorRegistry;
    import org.springframework.web.servlet.config.annotation.ViewControllerRegistry;
    import org.springframework.web.servlet.config.annotation.WebMvcConfigurerAdapter;
    
    import java.io.IOException;
    import java.util.Enumeration;
    import java.util.Properties;
    
    /**
     * Created by sun on 2017-3-21.
     */
    @Configuration
    public class WebMvcConfig extends WebMvcConfigurerAdapter {
    
        /**
         * 此方法把该拦截器实例化成一个bean,否则在拦截器里无法注入其它bean
         * @return
         */
        @Bean
        SessionInterceptor sessionInterceptor() {
            return new SessionInterceptor();
        }
        /**
         * 配置拦截器
         * @param registry
         */
        public void addInterceptors(InterceptorRegistry registry) {
            registry.addInterceptor(sessionInterceptor())
                    .addPathPatterns("/**")
                    .excludePathPatterns("/login","/permission/userInsert",
                            "/error","/tUser/insert","/gif/getGifCode");
        }
    
    }

package com.sun.configuration;
    
    import com.sun.permission.model.User;
    import com.sun.permission.service.PermissionService;
    import org.apache.log4j.Logger;
    import org.apache.shiro.SecurityUtils;
    import org.apache.shiro.authc.UsernamePasswordToken;
    import org.apache.shiro.session.Session;
    import org.apache.shiro.subject.Subject;
    import org.springframework.web.servlet.HandlerInterceptor;
    import org.springframework.web.servlet.ModelAndView;
    
    import javax.annotation.Resource;
    import javax.servlet.http.HttpServletRequest;
    import javax.servlet.http.HttpServletResponse;
    
    /**
     * Created by sun on 2017-4-9.
     */
    public class SessionInterceptor implements HandlerInterceptor{
        private final Logger logger = Logger.getLogger(SessionInterceptor.class);
        @Resource
        private PermissionService permissionService;
        @Override
        public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object o) throws Exception {
            logger.info("---preHandle---");
            System.out.println(request.getContextPath());
            Subject currentUser = SecurityUtils.getSubject();
            //判断用户是通过记住我功能自动登录,此时session失效
            if(!currentUser.isAuthenticated() && currentUser.isRemembered()){
                try {
                    User user = permissionService.findByUserEmail(currentUser.getPrincipals().toString());
                    //对密码进行加密后验证
                    UsernamePasswordToken token = new UsernamePasswordToken(user.getEmail(), user.getPswd(),currentUser.isRemembered());
                    //把当前用户放入session
                    currentUser.login(token);
                    Session session = currentUser.getSession();
                    session.setAttribute("currentUser",user);
                    //设置会话的过期时间--ms,默认是30分钟，设置负数表示永不过期
                    session.setTimeout(-1000l);
                }catch (Exception e){
                    //自动登录失败,跳转到登录页面
                    response.sendRedirect(request.getContextPath()+"/login");
                    return false;
                }
                if(!currentUser.isAuthenticated()){
                    //自动登录失败,跳转到登录页面
                    response.sendRedirect(request.getContextPath()+"/login");
                    return false;
                }
            }
            return true;
        }
    
        @Override
        public void postHandle(HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse, Object o, ModelAndView modelAndView) throws Exception {
            logger.info("---postHandle---");
        }
    
        @Override
        public void afterCompletion(HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse, Object o, Exception e) throws Exception {
            logger.info("---afterCompletion---");
        }
    }