Shiro限制登錄嘗試次數

/**
* 認證信息.(身份驗證) : Authentication 是用來驗證用戶身份
 * 
 * @param token
 * @return
 * @throws AuthenticationException
 */
@Override
protected AuthenticationInfo doGetAuthenticationInfo(
        AuthenticationToken authcToken) throws AuthenticationException {


    System.out.println("身份認證方法：MyShiroRealm.doGetAuthenticationInfo()");

    UsernamePasswordToken token = (UsernamePasswordToken) authcToken;
    String name = token.getUsername();
    String password = String.valueOf(token.getPassword());
    //訪問一次，計數一次
    ValueOperations<String, String> opsForValue = stringRedisTemplate.opsForValue();
    opsForValue.increment(SHIRO_LOGIN_COUNT+name, 1);
    //計數大於5時，設置用戶被鎖定一小時
    if(Integer.parseInt(opsForValue.get(SHIRO_LOGIN_COUNT+name))>=5){
        opsForValue.set(SHIRO_IS_LOCK+name, "LOCK");
        stringRedisTemplate.expire(SHIRO_IS_LOCK+name, 1, TimeUnit.HOURS);
    }
    if ("LOCK".equals(opsForValue.get(SHIRO_IS_LOCK+name))){
        throw new DisabledAccountException("由於密碼輸入錯誤次數大於5次，帳號已經禁止登錄！");
    }
    Map<String, Object> map = new HashMap<String, Object>();
    map.put("nickname", name);
    //密碼進行加密處理  明文為  password+name
    String paw = password+name;
    String pawDES = MyDES.encryptBasedDes(paw);
    map.put("pswd", pawDES);
    SysUser user = null;
    // 從數據庫獲取對應用戶名密碼的用戶
    List<SysUser> userList = sysUserService.selectByMap(map);
    if(userList.size()!=0){
        user = userList.get(0);
    } 
    if (null == user) {
        throw new AccountException("帳號或密碼不正確！");
    }else if(user.getStatus()==0){
        /**
         * 如果用戶的status為禁用。那么就拋出<code>DisabledAccountException</code>
         */
        throw new DisabledAccountException("此帳號已經設置為禁止登錄！");
    }else{
        //登錄成功
        //更新登錄時間 last login time
        user.setLastLoginTime(new Date());
        sysUserService.updateById(user);
        //清空登錄計數
        opsForValue.set(SHIRO_LOGIN_COUNT+name, "0");
    }
    return new SimpleAuthenticationInfo(user, password, getName());
}

原文：https://blog.csdn.net/qq_20954959/article/details/61927119