分布式Shiro，SpringBoot项目Shiro整合Redis

在Spring Boot项目中整合Shiro和Redis，可以通过以下步骤实现：

1. 引入相关依赖：

<!-- Shiro -->
<dependency>
    <groupId>org.apache.shiro</groupId>
    <artifactId>shiro-spring</artifactId>
    <version>你的Shiro版本</version>
</dependency>
<!-- Redis -->
<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-data-redis</artifactId>
</dependency>

2. 配置Shiro和Redis：

@Configuration
public class ShiroConfig {
 
    @Bean
    public CacheManager cacheManager(RedisConnectionFactory redisConnectionFactory) {
        RedisCacheManager redisCacheManager = new RedisCacheManager();
        redisCacheManager.setRedisManager(redisManager(redisConnectionFactory));
        return redisCacheManager;
    }
 
    @Bean
    public RedisManager redisManager(RedisConnectionFactory redisConnectionFactory) {
        RedisManager redisManager = new RedisManager();
        redisManager.setHost("localhost"); // Redis服务器地址
        redisManager.setPort(6379); // Redis服务器连接端口
        return redisManager;
    }
 
    @Bean
    public DefaultWebSecurityManager securityManager(CacheManager cacheManager) {
        DefaultWebSecurityManager securityManager = new DefaultWebSecurityManager();
        // 设置realm
        securityManager.setRealm(myRealm());
        // 注入cacheManager
        securityManager.setCacheManager(cacheManager);
        return securityManager;
    }
 
    @Bean
    public MyRealm myRealm() {
        return new MyRealm();
    }
 
    // 其他Shiro配置...
}

3. 创建自定义Realm：

public class MyRealm extends AuthorizingRealm {
 
    @Autowired
    private UserService userService;
 
    @Autowired
    private RoleService roleService;
 
    @Autowired
    private PermissionService permissionService;
 
    @Override
    protected AuthorizationInfo doGetAuthorizationInfo(PrincipalCollection principals) {
        // 获取当前登录用户
        User user = (User) principals.getPrimaryPrincipal();
        // 获取用户的角色和权限信息
        Set<String> roles = roleService.getRolesByUserId(user.getId());