开发一个将在任务栏上运行的java应用程序,并在条件匹配时显示弹出窗口

时间:2015-01-22 06:38:57

标签: java

我正在开发一个应用程序,它会定期ping多个网址(服务器),以确保服务器运行正常或是否正常运行。我已经完成了编码部分(java程序)来实现这一点。

以下是代码:

public class PingServers {

  public static boolean pingUrl(String address) {
    try {
        final URL url = new URL("http://" + address);
        final HttpURLConnection urlConn = (HttpURLConnection) url.openConnection();
        urlConn.setConnectTimeout(1000 * 100); // Timeout is in milliseconds
        final long startTime = System.currentTimeMillis();
        urlConn.connect();
        final long endTime = System.currentTimeMillis();
        if (urlConn.getResponseCode() == HttpURLConnection.HTTP_OK) {
            System.out.println("Time (ms) : " + (endTime - startTime));
            System.out.println("Ping to " + address + " was success");
            return true;
        }
    } catch (final MalformedURLException e1) {
        System.out.println("inside MalformedURLException");
        e1.printStackTrace();
    } catch (final Exception e) {
        System.out.println("inside Exception");
        e.printStackTrace();
        System.out.println(address + " is either going down or is an unknownhost.");

    }

    return false;
  }

  public static void main(String args[]) throws InterruptedException {

    //for periodic execution
    for (int i = 0; i < 5; i++) {
        System.out.println("Execution in Main Thread...." + i);
        Date now = new Date(); // initialize date
        System.out.println("Time is :" + now); // Display current time
        String url1 = "www.google.com";
        String url2 = "www.yahoo.com";
        String url3 = "www.invalidurl.com";
        pingUrl(url1);
        pingUrl(url2);
        pingUrl(url3);

        Thread.sleep(10000);
        if (i == 5) {
            System.out.println("Application Terminates");
            System.exit(0);
        }
     }
  }
}

它在cmd(控制台)中运行良好。但我需要将其形成为一个将自动在任务栏中运行的应用程序,一旦条件匹配(服务器关闭或未知主机),它将显示弹出窗口。

有人请告诉我从这里开始实现这一目标的最佳方法(一步一步)。

非常值得赞赏。

0 个答案:

没有答案