shiro——从MySQL得到当前执行的用户

图片.png

jdbc_realm.ini：

[main]
jdbcRealm=org.apache.shiro.realm.jdbc.JdbcRealm
dataSource=com.mchange.v2.c3p0.ComboPooledDataSource
dataSource.driverClass=com.mysql.jdbc.Driver
dataSource.jdbcUrl=jdbc:mysql://localhost:3306/shiro_db
dataSource.user=root
dataSource.password=root
jdbcRealm.dataSource=$dataSource
securityManager.realms=$jdbcRealm

// 读取配置文件，初始化SecurityManager工厂
        Factory<org.apache.shiro.mgt.SecurityManager> factory = new IniSecurityManagerFactory(
                "classpath:jdbc_realm.ini");

        // 获取securityManager实例
        org.apache.shiro.mgt.SecurityManager securityManager = factory.getInstance();

        // 把securityManager实例绑定到SecurityUtils
        SecurityUtils.setSecurityManager(securityManager);

        // 得到当前执行的用户
        Subject currentUser = SecurityUtils.getSubject();

        // 创建token令牌，用户名/密码
        UsernamePasswordToken token = new UsernamePasswordToken("zb", "1");

        try {
            // 身份认证
            currentUser.login(token);
            System.out.println("身份认证成功！" + token.getUsername());
        } catch (IncorrectCredentialsException e) {
            System.out.println("登录密码错误");
        } catch (ExcessiveAttemptsException e) {
            System.out.println("登录失败次数过多");
        } catch (LockedAccountException e) {
            System.out.println("帐号已被锁定");
        } catch (DisabledAccountException e) {
            System.out.println("帐号已被禁用");
        } catch (ExpiredCredentialsException e) {
            System.out.println("帐号已过期");
        } catch (UnknownAccountException e) {
            System.out.println("帐号不存在");
        }
        // 退出
        currentUser.logout();

数据库的表必须是user
字段为：
userName和passWord

user表