spring boot整合shiro

  1. 导入依赖

    <!--
          Subject  用户
          SecurityManager 管理所有用户
          Realm 连接数据库
    -->
    
    <!--shiro整合spring的包-->
    <dependency>
        <groupId>org.apache.shiro</groupId>
        <artifactId>shiro-spring</artifactId>
        <version>xxx</version>
    </dependency>
    
  2. 编写自定义类

    //自定义的UserRealm
    public class UserRealm extends AuthorizingRealm {
        //授权
        @Override
        protected AuthorizationInfo doGetAuthorizationInfo(PrincipalCollection principalCollection) {
            System.out.println("执行了=>授权doGetAuthorizationInfo");
            return null;
        }
    
        //认证
        @Override
        protected AuthenticationInfo doGetAuthenticationInfo(AuthenticationToken authenticationToken) throws AuthenticationException {
            System.out.println("执行了=>认证doGetAuthorizationInfo");
            return null;
        }
    }
    
  3. 编写配置类ShiroConfig

    @Configuration
    public class ShiroConfig {
    
        //3. shiroFilterFactoryBean
    
        @Bean
        public ShiroFilterFactoryBean getShiroFilterFactoryBean(@Qualifier("getDefaultWebSecurityManager") DefaultWebSecurityManager defaultWebSecurityManager) {
            ShiroFilterFactoryBean bean = new ShiroFilterFactoryBean();
            // 设置安全管理器
            bean.setSecurityManager(defaultWebSecurityManager);
    
            return bean;
        }
    
        //2. DefaultWebSecurityManager
    
        @Bean
        public DefaultWebSecurityManager getDefaultWebSecurityManager(@Qualifier("userRealm") UserRealm userRealm) {
            DefaultWebSecurityManager securityManager = new DefaultWebSecurityManager();
    
            // 关联userRealm
            securityManager.setRealm(userRealm);
            return securityManager;
        }
        //1. 创建realm对象,需要自定义类
    
        @Bean
        public UserRealm userRealm() {
            return new UserRealm();
        }
    }
    
  4. shiro实现登录拦截(就是你得先登录才能访问我的其他页面),在ShiroConfig中的getShiroFilterFactoryBean方法中添加如下配置

    /*
    anon: 无需认证就可以访问
    authc: 必须认证了才能访问
    user: 必须拥有记住我功能才能用
    perms: 拥有对某个资源的权限才能访问
    role: 拥有某个角色权限
    */
    Map<String, String> filterMap = new LinkedHashMap<>();
    //filterMap.put("/user/add","authc");
    //filterMap.put("/user/update","authc");
    filterMap.put("/user/*","authc");
    bean.setFilterChainDefinitionMap(filterMap);
    
    //如果没有权限就跳转到登录页面
    //设置登录的请求
    bean.setLoginUrl("/toLogin");
    
  5. Shiro实现用户认证(就是登录的过程,通过身份认证,登录,验证用户是不是拥有相应的身份)

    • controller中编写相应内容
    @RequestMapping("/login")
    public String login(String username, String password, Model model) {
        //获取一个用户
        Subject subject = SecurityUtils.getSubject();
        // 封装用户的登录数据
        UsernamePasswordToken token = new UsernamePasswordToken(username, password);
    
        try {
            subject.login(token);//执行登录的方法,如果没有异常就说明ok了
            return "index";
        } catch (UnknownAccountException e) {//用户名不存在
            model.addAttribute("msg","用户名错误");
            return "login";
        } catch (IncorrectCredentialsException e) {//密码不存在
            model.addAttribute("msg","密码错误");
            return "login";
        }
    
    }
    
    • 编写UserRealm中的认证
    //认证
    @Override
    protected AuthenticationInfo doGetAuthenticationInfo(AuthenticationToken token) throws AuthenticationException {
        System.out.println("执行了=>认证doGetAuthorizationInfo");
        // 用户名、密码, 数据库中取
        String name = "root";
        String password = "123456";
    
        UsernamePasswordToken userToken = (UsernamePasswordToken) token;
    
        if (!userToken.getUsername().equals(name)) {
            return null;//抛出异常 UnknownAccountException
        }
    
        // 密码认证,shiro做
        return new SimpleAuthenticationInfo("",password,"");
    }
    
posted @ 2024-05-18 16:09  Hanyta  阅读(7)  评论(0编辑  收藏  举报