SpringBoot + Redis + Shiro 实现权限管理（转）

概述

　　本文基于网上整理，为了实现将Shiro框架的session存储到redis里面，进而实现基于Niginx负载均衡，多站点部署；

maven下shiro依赖

<!-- shiro -->
        <dependency>
            <groupId>org.apache.shiro</groupId>
            <artifactId>shiro-spring</artifactId>
            <version>1.4.0</version>
        </dependency>
        <dependency>
            <groupId>org.apache.shiro</groupId>
            <artifactId>shiro-ehcache</artifactId>
            <version>1.4.0</version>
        </dependency>

        <!-- shiro+redis缓存插件 -->
        <dependency>
            <groupId>org.crazycake</groupId>
            <artifactId>shiro-redis</artifactId>
            <version>2.4.2.1-RELEASE</version>
        </dependency>

主要代码编写

1、ShiroConfig配置

package com.chaoqi.springboot_shiro_redis.config;

import com.chaoqi.springboot_shiro_redis.secutity.KickoutSessionControlFilter;
import com.chaoqi.springboot_shiro_redis.secutity.MyShiroRealm;
import org.apache.shiro.mgt.SecurityManager;
import org.apache.shiro.spring.LifecycleBeanPostProcessor;
import org.apache.shiro.spring.security.interceptor.AuthorizationAttributeSourceAdvisor;
import org.apache.shiro.spring.web.ShiroFilterFactoryBean;
import org.apache.shiro.web.mgt.DefaultWebSecurityManager;
import org.apache.shiro.web.session.mgt.DefaultWebSessionManager;
import org.crazycake.shiro.RedisCacheManager;
import org.crazycake.shiro.RedisManager;
import org.crazycake.shiro.RedisSessionDAO;
import org.springframework.aop.framework.autoproxy.DefaultAdvisorAutoProxyCreator;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

import javax.servlet.Filter;
import java.util.LinkedHashMap;
import java.util.Map;

@Configuration
public class ShiroConfig {

　　　　@Value("${redis.host}")
　　　　private String redisHost;

　　　　@Value("${redis.port}")
　　　　private String redisPort;

    @Bean
    public ShiroFilterFactoryBean shiroFilter(SecurityManager securityManager) {
        ShiroFilterFactoryBean shiroFilterFactoryBean = new ShiroFilterFactoryBean();
        shiroFilterFactoryBean.setSecurityManager(securityManager);
        // 没有登陆的用户只能访问登陆页面
        shiroFilterFactoryBean.setLoginUrl("/auth/login");
        // 登录成功后要跳转的链接
        shiroFilterFactoryBean.setSuccessUrl("/auth/index");
        // 未授权界面; ----这个配置了没卵用，具体原因想深入了解的可以自行百度
        //shiroFilterFactoryBean.setUnauthorizedUrl("/auth/403");
        //自定义拦截器
        Map<String, Filter> filtersMap = new LinkedHashMap<String, Filter>();
        //限制同一帐号同时在线的个数。
        filtersMap.put("kickout", kickoutSessionControlFilter());
        shiroFilterFactoryBean.setFilters(filtersMap);
        // 权限控制map.
        Map<String, String> filterChainDefinitionMap = new LinkedHashMap<String, String>();
        filterChainDefinitionMap.put("/css/**", "anon");
        filterChainDefinitionMap.put("/js/**", "anon");
        filterChainDefinitionMap.put("/img/**", "anon");
        filterChainDefinitionMap.put("/auth/login", "anon");
        filterChainDefinitionMap.put("/auth/logout", "logout");
        filterChainDefinitionMap.put("/auth/kickout", "anon");
        filterChainDefinitionMap.put("/**", "authc,kickout");
        shiroFilterFactoryBean.setFilterChainDefinitionMap(filterChainDefinitionMap);
        return shiroFilterFactoryBean;
    }

    @Bean
    public SecurityManager securityManager() {
        DefaultWebSecurityManager securityManager = new DefaultWebSecurityManager();
        // 设置realm.
        securityManager.setRealm(myShiroRealm());
        // 自定义缓存实现 使用redis
        securityManager.setCacheManager(cacheManager());
        // 自定义session管理 使用redis
        securityManager.setSessionManager(sessionManager());
        return securityManager;
    }

    /**
     * 身份认证realm; (这个需要自己写，账号密码校验；权限等)
     *
     * @return
     */
    @Bean
    public MyShiroRealm myShiroRealm() {
        MyShiroRealm myShiroRealm = new MyShiroRealm();
        return myShiroRealm;
    }

    /**
     * cacheManager 缓存 redis实现
     * 使用的是shiro-redis开源插件
     *
     * @return
     */
    public RedisCacheManager cacheManager() {
        RedisCacheManager redisCacheManager = new RedisCacheManager();
        redisCacheManager.setRedisManager(redisManager());
        return redisCacheManager;
    }

    /**
     * 配置shiro redisManager
     * 使用的是shiro-redis开源插件
     *
     * @return
     */
    public RedisManager redisManager() {
        RedisManager redisManager = new RedisManager();
        redisManager.setHost(redisHost);
        redisManager.setPort(redisPort);
        redisManager.setExpire(1800);// 配置缓存过期时间
        redisManager.setTimeout(0);
        // redisManager.setPassword(password);
        return redisManager;
    }

    /**
     * Session Manager
     * 使用的是shiro-redis开源插件
     */
    @Bean
    public DefaultWebSessionManager sessionManager() {
        DefaultWebSessionManager sessionManager = new DefaultWebSessionManager();
        sessionManager.setSessionDAO(redisSessionDAO());
        return sessionManager;
    }

    /**
     * RedisSessionDAO shiro sessionDao层的实现 通过redis
     * 使用的是shiro-redis开源插件
     */
    @Bean
    public RedisSessionDAO redisSessionDAO() {
        RedisSessionDAO redisSessionDAO = new RedisSessionDAO();
        redisSessionDAO.setRedisManager(redisManager());
        return redisSessionDAO;
    }

    /**
     * 限制同一账号登录同时登录人数控制
     *
     * @return
     */
    @Bean
    public KickoutSessionControlFilter kickoutSessionControlFilter() {
        KickoutSessionControlFilter kickoutSessionControlFilter = new KickoutSessionControlFilter();
        kickoutSessionControlFilter.setCacheManager(cacheManager());
        kickoutSessionControlFilter.setSessionManager(sessionManager());
        kickoutSessionControlFilter.setKickoutAfter(false);
        kickoutSessionControlFilter.setMaxSession(1);
        kickoutSessionControlFilter.setKickoutUrl("/auth/kickout");
        return kickoutSessionControlFilter;
    }

    /***
     * 授权所用配置
     *
     * @return
     */
    @Bean
    public DefaultAdvisorAutoProxyCreator getDefaultAdvisorAutoProxyCreator() {
        DefaultAdvisorAutoProxyCreator defaultAdvisorAutoProxyCreator = new DefaultAdvisorAutoProxyCreator();
        defaultAdvisorAutoProxyCreator.setProxyTargetClass(true);
        return defaultAdvisorAutoProxyCreator;
    }

    /***
     * 使授权注解起作用不如不想配置可以在pom文件中加入
     * <dependency>
     *<groupId>org.springframework.boot</groupId>
     *<artifactId>spring-boot-starter-aop</artifactId>
     *</dependency>
     * @param securityManager
     * @return
     */
    @Bean
    public AuthorizationAttributeSourceAdvisor authorizationAttributeSourceAdvisor(SecurityManager securityManager){
        AuthorizationAttributeSourceAdvisor authorizationAttributeSourceAdvisor = new AuthorizationAttributeSourceAdvisor();
        authorizationAttributeSourceAdvisor.setSecurityManager(securityManager);
        return authorizationAttributeSourceAdvisor;
    }

    /**
     * Shiro生命周期处理器
     *
     */
    @Bean
    public static LifecycleBeanPostProcessor getLifecycleBeanPostProcessor() {
        return new LifecycleBeanPostProcessor();
    }

}

　2、自定义Realm

package com.chaoqi.springboot_shiro_redis.secutity;

import com.chaoqi.springboot_shiro_redis.service.SysRoleService;
import com.chaoqi.springboot_shiro_redis.service.UserService;
import com.chaoqi.springboot_shiro_redis.dao.domain.SysUser;
import org.apache.shiro.authc.*;
import org.apache.shiro.authz.AuthorizationInfo;
import org.apache.shiro.authz.SimpleAuthorizationInfo;
import org.apache.shiro.realm.AuthorizingRealm;
import org.apache.shiro.subject.PrincipalCollection;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;

import java.util.*;

public class MyShiroRealm extends AuthorizingRealm {
    private static org.slf4j.Logger logger = LoggerFactory.getLogger(MyShiroRealm.class);

    //如果项目中用到了事物，@Autowired注解会使事物失效，可以自己用get方法获取值
    @Autowired
    private SysRoleService roleService;
    @Autowired
    private UserService userService;

    /**
     * 认证信息.(身份验证) : Authentication 是用来验证用户身份
     *
     */
    @Override
    protected AuthenticationInfo doGetAuthenticationInfo(AuthenticationToken authcToken) throws AuthenticationException {
        logger.info("---------------- 执行 Shiro 凭证认证 ----------------------");
        UsernamePasswordToken token = (UsernamePasswordToken) authcToken;
        String name = token.getUsername();
        String password = String.valueOf(token.getPassword());
        SysUser user = new SysUser();
        user.setUserName(name);
        user.setPassWord(password);
        // 从数据库获取对应用户名密码的用户
        SysUser userList = userService.getUser(user);
        if (userList != null) {
            // 用户为禁用状态
            if (userList.getUserEnable() != 1) {
                throw new DisabledAccountException();
            }
            logger.info("---------------- Shiro 凭证认证成功 ----------------------");
            SimpleAuthenticationInfo authenticationInfo = new SimpleAuthenticationInfo(
                    userList, //用户
                    userList.getPassWord(), //密码
                    getName()  //realm name
            );
            return authenticationInfo;
        }
        throw new UnknownAccountException();
    }

    /**
     * 授权
     */
    @Override
    protected AuthorizationInfo doGetAuthorizationInfo(PrincipalCollection principals) {
        logger.info("---------------- 执行 Shiro 权限获取 ---------------------");
        Object principal = principals.getPrimaryPrincipal();
        SimpleAuthorizationInfo authorizationInfo = new SimpleAuthorizationInfo();
        if (principal instanceof SysUser) {
            SysUser userLogin = (SysUser) principal;
            Set<String> roles = roleService.findRoleNameByUserId(userLogin.getId());
            authorizationInfo.addRoles(roles);

            Set<String> permissions = userService.findPermissionsByUserId(userLogin.getId());
            authorizationInfo.addStringPermissions(permissions);
        }
        logger.info("---- 获取到以下权限 ----");
        logger.info(authorizationInfo.getStringPermissions().toString());
        logger.info("---------------- Shiro 权限获取成功 ----------------------");
        return authorizationInfo;
    }

}

3、限制并发人数登陆

package com.chaoqi.springboot_shiro_redis.secutity;

import com.alibaba.fastjson.JSON;
import com.chaoqi.springboot_shiro_redis.dao.domain.SysUser;
import org.apache.shiro.cache.Cache;
import org.apache.shiro.cache.CacheManager;
import org.apache.shiro.session.Session;
import org.apache.shiro.session.mgt.DefaultSessionKey;
import org.apache.shiro.session.mgt.SessionManager;
import org.apache.shiro.subject.Subject;
import org.apache.shiro.web.filter.AccessControlFilter;
import org.apache.shiro.web.util.WebUtils;

import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServletRequest;
import java.io.IOException;
import java.io.PrintWriter;
import java.io.Serializable;
import java.util.Deque;
import java.util.HashMap;
import java.util.LinkedList;
import java.util.Map;

public class KickoutSessionControlFilter extends AccessControlFilter {

    private String kickoutUrl; //踢出后到的地址
    private boolean kickoutAfter = false; //踢出之前登录的/之后登录的用户 默认踢出之前登录的用户
    private int maxSession = 1; //同一个帐号最大会话数 默认1

    private SessionManager sessionManager;
    private Cache<String, Deque<Serializable>> cache;

    public void setKickoutUrl(String kickoutUrl) {
        this.kickoutUrl = kickoutUrl;
    }

    public void setKickoutAfter(boolean kickoutAfter) {
        this.kickoutAfter = kickoutAfter;
    }

    public void setMaxSession(int maxSession) {
        this.maxSession = maxSession;
    }

    public void setSessionManager(SessionManager sessionManager) {
        this.sessionManager = sessionManager;
    }
    //设置Cache的key的前缀
    public void setCacheManager(CacheManager cacheManager) {
        this.cache = cacheManager.getCache("shiro_redis_cache");
    }

    @Override
    protected boolean isAccessAllowed(ServletRequest request, ServletResponse response, Object mappedValue) throws Exception {
        return false;
    }

    @Override
    protected boolean onAccessDenied(ServletRequest request, ServletResponse response) throws Exception {
        Subject subject = getSubject(request, response);
        if(!subject.isAuthenticated() && !subject.isRemembered()) {
            //如果没有登录，直接进行之后的流程
            return true;
        }

        Session session = subject.getSession();
        SysUser user = (SysUser) subject.getPrincipal();
        String username = user.getUserName();
        Serializable sessionId = session.getId();

        //读取缓存   没有就存入
        Deque<Serializable> deque = cache.get(username);

        //如果此用户没有session队列，也就是还没有登录过，缓存中没有
        //就new一个空队列，不然deque对象为空，会报空指针
        if(deque==null){
            deque = new LinkedList<Serializable>();
        }

        //如果队列里没有此sessionId，且用户没有被踢出；放入队列
        if(!deque.contains(sessionId) && session.getAttribute("kickout") == null) {
            //将sessionId存入队列
            deque.push(sessionId);
            //将用户的sessionId队列缓存
            cache.put(username, deque);
        }

        //如果队列里的sessionId数超出最大会话数，开始踢人
        while(deque.size() > maxSession) {
            Serializable kickoutSessionId = null;
            if(kickoutAfter) { //如果踢出后者
                kickoutSessionId = deque.removeFirst();
                //踢出后再更新下缓存队列
                cache.put(username, deque);
            } else { //否则踢出前者
                kickoutSessionId = deque.removeLast();
                //踢出后再更新下缓存队列
                cache.put(username, deque);
            }

            try {
                //获取被踢出的sessionId的session对象
                Session kickoutSession = sessionManager.getSession(new DefaultSessionKey(kickoutSessionId));
                if(kickoutSession != null) {
                    //设置会话的kickout属性表示踢出了
                    kickoutSession.setAttribute("kickout", true);
                }
            } catch (Exception e) {//ignore exception
            }
        }

        //如果被踢出了，直接退出，重定向到踢出后的地址
        if (session.getAttribute("kickout") != null) {
            //会话被踢出了
            try {
                //退出登录
                subject.logout();
            } catch (Exception e) { //ignore
            }
            saveRequest(request);

            Map<String, String> resultMap = new HashMap<String, String>();
            //判断是不是Ajax请求
            if ("XMLHttpRequest".equalsIgnoreCase(((HttpServletRequest) request).getHeader("X-Requested-With"))) {
                resultMap.put("user_status", "300");
                resultMap.put("message", "您已经在其他地方登录，请重新登录！");
                //输出json串
                out(response, resultMap);
            }else{
                //重定向
                WebUtils.issueRedirect(request, response, kickoutUrl);
            }
            return false;
        }
        return true;
    }
    private void out(ServletResponse hresponse, Map<String, String> resultMap)
            throws IOException {
        try {
            hresponse.setCharacterEncoding("UTF-8");
            PrintWriter out = hresponse.getWriter();
            out.println(JSON.toJSONString(resultMap));
            out.flush();
            out.close();
        } catch (Exception e) {
            System.err.println("KickoutSessionFilter.class 输出JSON异常，可以忽略。");
        }
    }
}

参考网址

https://www.cnblogs.com/caichaoqi/p/8900677.html

https://www.cnblogs.com/chenxbo/p/11002392.html

原文地址：https://www.cnblogs.com/xibei666/p/12363046.html

时间： 2024-11-07 22:30:26

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