Question

我正在开发一个Java程序，它同时打开命令行的多个实例。为此，我使用的线程为Runnable s，如下所示：

//Handles the command line running
private Process p;
private String port;
private String path;

@Override
public void run() {
    ProcessBuilder pb = //Initialization of ProcessBuilder
    pb.directory(new File(this.path));

    ...

    try {
        p = pb.start();
        p.waitFor(); //Using this since the server must continue after it is started.
         ...         //This is the part I need to cancel when I close the thread.

        }
    } catch (IOException e) {          //These exceptions are thrown from the process inside the Runnable.
        ...
    } catch (InterruptedException e) {
        ...
    }
}

public void stopServer() {
    p.destroy();
}

在我的Main应用程序类中：

ArrayList<Thread> threads = new ArrayList<>();

public void startServer(String port, String path) {
    //Instantiate my Runnable Class, with port and path parameters
    MyRunnable rss = new MyRunnable(port, path);

    //Spawn a new thread with the Runnable
    Thread thread = new Thread(rss);

    //Set the name of the thread (presumably for finding it later?)
    thread.setName("server-" + threads.size());

    //Start the thread.
    thread.start();

    //Add the thread to an ArrayList<Thread>?
    threads.add(thread);
}

所以我的问题是：如何使用我的stopServer()方法停止Main类的进程？

免责声明：我对多线程编程非常陌生，所以你能给出的任何帮助都很棒，可能有些简单，我根本不知道Thread的工作方式。

谢谢！

Answer 1

而不是ArrayList<Thread>，而是使用ArrayList<MyRunnable>。

这样，如果对象不为null，我可以遍历调用stopServer()的列表。

在Runnables内杀死进程

1 个答案: