Question

我创建了java独立应用程序。这个应用程序每隔5秒发送一个移动和事件，一个线程（主）和应用程序停止事件请求开始...或移动请求开始...行在下面的请求方法。如何我能解决这个错误。

我无法得到任何投掷消息。

我可以在数据库连接和网络连接时处理这个问题断开。

public void run() {
    while (true) {
        long startTime = System.currentTimeMillis();
        Connection connection = openConnection();
        try {
            mobileEventList = null;
            if (connection != null) {
                mobileEventList = Dao.getMobileEvents(connection);
            }
            if (failEventFlag) {
                if (failMobileEventList != null && failMobileEventList.size() > 0) {
                    mobileEventList.addAll(failMobileEventList);
                    LOGGER.info("Fail Event , failMobileEventList Size->" + mobileEventList.size());
                }
            }

            mobileList = null;
            if (connection != null) {
                mobileList = Dao.getMobiles(username, connection);
            }
            int responseEvent = setLogEvents(endPointEvent);
            int responseMobile = setLogMobile(endPointMobile);
            if (mobileEventList != null && mobileList != null && responseEvent != 0 && responseMobile != 0) {
                if (connection != null) {
                    Dao.updateHeartBeat(appName, connection);
                    LOGGER.info("HeartBeat updated.");
                }
            }
            closeConnection(connection);

        } catch (Exception e) {
            LOGGER.error(e.getMessage());
        }
        long endTime = System.currentTimeMillis();
        LOGGER.info("Gecen milisaniye->" + ((endTime - startTime)));
        if (((endTime - startTime)) < this.repeatTime) {
            try {
                Thread.sleep(this.repeatTime);
            } catch (InterruptedException e) {
                LOGGER.error(e.getMessage());
            }
        }
    }
}

每个getEvents和getMobiles都会发送请求 - ＆gt;

private static int request(String params, String endPoint, boolean isEvent) {

    if (isEvent) {
        LOGGER.info(" Event Request Starting...");
    } else {
        LOGGER.info(" Mobile Request Starting...");
    }

    DataOutputStream wr = null;
    HttpURLConnection conn = null;
    URL url = null;
    int responseCode = 0;
    try {
        url = new URL(endPoint);
        conn = (HttpURLConnection) url.openConnection();
        conn.setRequestMethod("POST");
        conn.setRequestProperty("Content-Type", "application/json;charset=" + StandardCharsets.UTF_8);
        conn.setUseCaches(false);
        conn.setDoOutput(true);
        conn.setDoInput(true);
        conn.setConnectTimeout(5000);
        conn.connect();
        wr = new DataOutputStream(conn.getOutputStream());
        wr.writeBytes(params);
        wr.flush();
        wr.close();
        responseCode = conn.getResponseCode();
        isFailEvent(responseCode, isEvent);

    } catch (UnsupportedEncodingException e) {
        LOGGER.error(e.getMessage());
    } catch (IOException e) {
        isFailEvent(responseCode, isEvent);
        LOGGER.error(e.getMessage());
    } catch (Throwable e) {
        LOGGER.error(e.getMessage());
    } finally {
        try {
            if (wr != null) {
                wr.close();
            }
            if (conn != null) {
                conn.disconnect();
            }
        } catch (Exception e) {
            LOGGER.error(e.getMessage());
        }
        params = null;
    }

    if (isEvent) {
        LOGGER.info(" Event Request End  Http Code : " + responseCode + " End Point: " + endPoint);
    } else {
        LOGGER.info(" Mobile Request End  Http Code : " + responseCode + " End Point: " + endPoint);
    }

    return responseCode;
}

Answer 1

我们希望帖子在我们发送请求时工作，然后在HTTPUrlConnection方法中使用setDoOutput（true）向responseCode返回响应。有时responseTime持续30秒，因此setReadTimeOut（0）默认url conenction。有时候没有得到响应代码和怀疑程序。所以我们必须像这样添加setReadTimeout参数 conn.setReadTimeout（40000）;

 conn.getResponseCode();// stay there

Java App在

1 个答案: