Future 异步多线程

  进来接手一个任务，需要做异步多线程数据源调用，数据源的配置和使用请阅读相关文章：

   https://www.cnblogs.com/haoliyou/p/9604452.html

  配置好数据源后，实质上其实就是需要做一个异步的调用查询

 

@Resource
private LoginTask loginTask;

@Override
public JSONObject getLoginResult(String username, String password) {
   JSONObject jsonObject = new JSONObject();
   jsonObject.put("ret", "-1");
   jsonObject.put("msg", "用户名或密码错误");
   Future<JSONObject> cmFutureTask = loginTask.handleCmLogin(jsonObject, username, password);
   Future<JSONObject> csFutureTask = loginTask.handleCsLogin(jsonObject, username, password);
   JSONObject taskJson = new JSONObject();
   int count = 0;
   while (count < LoginConstants.TASK_REQUEST_LIMIT) {
      try {
            if (cmFutureTask.isDone()) {
                  taskJson = cmFutureTask.get(LoginConstants.TASK_RESULT_LIMIT, TimeUnit.SECONDS);
                  if (StringUtils.equals(taskJson.getString("ret"), "0")) {
                        csFutureTask.cancel(true);
                        jsonObject = taskJson;
                        break;
                   }
           }
           if (cbsFutureTask.isDone()) {
                   taskJson = csFutureTask.get(LoginConstants.TASK_RESULT_LIMIT, TimeUnit.SECONDS);
                   if (StringUtils.equals(taskJson.getString("ret"), "0")) {
                       cmFutureTask.cancel(true);
                       jsonObject = taskJson;
                       break;
                  }
           }
          if (cmFutureTask.isDone() && csFutureTask.isDone()) {
                  if (checkAdUser(username, password)) {
                      jsonObject.put("ret", "0");
                      jsonObject.put("msg", "登录成功！");
                      break;
                  }
             }
             count++;
             Thread.sleep(1000);
        } catch (Exception e) {
              e.printStackTrace();
        }
    }
     return jsonObject;
}

 

@Component
public class LoginTask {

   private static final Logger log = LoggerFactory.getLogger(LoginTask.class);

   @Resource
   private UserInfoMapper userInfoMapper;


   @Resource
   private UserMapper userMapper;

  /**
   * 处理发起的请求
   * 
   * @param request
   * @param requestHeaders
   * @param result
   * @param jsonObject
   * @param loginInfo
   * @return
   */
   @Async("taskExecutor")
   public Future<JSONObject> handleCmLogin(JSONObject jsonObject, String username, String password) {
        UserInfo userInfo = userInfoMapper.selectByUserId(username);
        if (userInfo == null) {
              jsonObject.put("ret", "20003");
              jsonObject.put("msg", "抱歉，目前仅支持xxxxx账号登录");
              return new AsyncResult<JSONObject>(jsonObject);
       } else if (!password.equals(userInfo.getPassword())) {
              log.info(userInfo.getUserName());
              jsonObject.put("ret", "20002");
              jsonObject.put("msg", "登录失败，请确认用户名和密码是否正确");
              return new AsyncResult<JSONObject>(jsonObject);
      }
       jsonObject.put("data", userInfo);
       jsonObject.put("ret", "0");
       jsonObject.put("msg", "success");
       log.info(userInfo.toString());
       return new AsyncResult<JSONObject>(jsonObject);
   }

  /**
   * 处理的请求
   * 
   * @param result
   * @param requestHeaders
   * @param jsonObject
   * @param loginInfo
   * @return
   */
   @Async("taskExecutor")
   public Future<JSONObject> handleCsLogin(JSONObject jsonObject, String username, String password) {
        User user = userMapper.selectByUserId(username, password);
        if (user == null) {
             jsonObject.put("ret", "20002");
             jsonObject.put("msg", "登录失败，请确认用户名和密码是否正确");
             return new AsyncResult<JSONObject>(jsonObject);
       } 
            log.info(user.toString());
            jsonObject.put("data", user);
            jsonObject.put("ret", "0");
            jsonObject.put("msg", "success");
      return new AsyncResult<JSONObject>(jsonObject);
     }
}