探秘Spring Boot-Shiro-Vue：构建高效安全的权限管理系统

// 假设ShiroConfig是一个配置类，并且SecurityManager是已经配置好的Spring Bean
@Configuration
public class ShiroConfig {
 
    @Bean
    public DefaultWebSecurityManager securityManager(Realm realm) {
        DefaultWebSecurityManager securityManager = new DefaultWebSecurityManager();
        securityManager.setRealm(realm);
        return securityManager;
    }
 
    @Bean
    public Realm realm() {
        // 实现自定义的Realm逻辑
        return new MyRealm();
    }
 
    @Bean
    public ShiroFilterFactoryBean shiroFilterFactoryBean(DefaultWebSecurityManager securityManager) {
        ShiroFilterFactoryBean shiroFilterFactoryBean = new ShiroFilterFactoryBean();
        shiroFilterFactoryBean.setSecurityManager(securityManager);
        // 配置ShiroFilter要进行的管理
        return shiroFilterFactoryBean;
    }
}
 
// MyRealm是继承自AuthorizingRealm的自定义Realm
public class MyRealm extends AuthorizingRealm {
 
    @Autowired
    private UserService userService;
 
    @Autowired
    private PermissionService permissionService;
 
    @Override
    protected AuthorizationInfo doGetAuthorizationInfo(PrincipalCollection principals) {
        SimpleAuthorizationInfo authorizationInfo = new SimpleAuthorizationInfo();
        // 获取当前登录用户
        User user = (User) principals.getPrimaryPrincipal();
        // 获取用户的角色和权限并赋予
        authorizationInfo.setRoles(userService.getRolesByUser(user));
        authorizationInfo.setStringPermissions(permissionService.getPermissionsByUser(user));
        return authorizationInfo;
    }
 
    @Override
    protected AuthenticationInfo doGetAuthenticationInfo(AuthenticationToken token) throws AuthenticationException {
        // 实现登录逻辑
        return null;
    }
}

这个代码实例展示了如何在Spring Boot项目中配置和使用Shiro来管理用户的认证和授权。在ShiroConfig类中，我们配置了securityManager和realm，并且指定了ShiroFilterFactoryBean的管理方式。在自定义的MyRealm类中，我们实现了认证和授权的逻辑，从数据库或服务中获取用户的角色和权限信息。