shiro教程2(自定义Realm)

/**
 * 自定义的Realm
 * @author dengp
 *
 */
public class MyRealm extends AuthorizingRealm{
  /**
   * 认证方法
   * @param token 
   *  就是我们在测试代码中 定义的UsernamePasswordToken对象
   *  有我们保存的需要验证的账号密码信息
   */
  @Override
  protected AuthenticationInfo doGetAuthenticationInfo(AuthenticationToken token) throws AuthenticationException {
    // 获取账号信息
    String principal = (String) token.getPrincipal();
    // 正常逻辑此处应该根据账号去数据库中查询，此处我们默认账号为 root 密码123456
    // 验证账号
    if(!"root".equals(principal)){
      // 账号错误
      return null;
    }
    String pwd = "123456";
    // 验证密码
    AuthenticationInfo info = new SimpleAuthenticationInfo(principal, pwd,"myrealm");
    return info;
  }
  /**
   * 授权方法
   */
  @Override
  protected AuthorizationInfo doGetAuthorizationInfo(PrincipalCollection principals) {
    // TODO Auto-generated method stub
    return null;
  }
}

[main]
#自定义 realm
customRealm=com.dpb.realm.MyRealm
#将realm设置到securityManager
securityManager.realms=$customRealm

@Test
public void test() {
  // 1.获取SecurityManager工厂对象
  Factory<SecurityManager> factory = 
      new IniSecurityManagerFactory("classpath:shiro.ini");
  // 2.通过Factory对象获取SecurityManager对象
  SecurityManager securityManager = factory.getInstance();
  // 3.将SecurityManager对象添加到当前运行环境中
  SecurityUtils.setSecurityManager(securityManager);
  // 4.获取Subject对象
  Subject subject = SecurityUtils.getSubject();
  AuthenticationToken token = new UsernamePasswordToken("root1", "12345");
  // 登录操作
  try {
    subject.login(token);
  } catch (UnknownAccountException e) {
    System.out.println("账号出错...");
  } catch(IncorrectCredentialsException e){
    System.out.println("密码出错...");
  }
  // 获取登录的状态
  System.out.println(subject.isAuthenticated());
}