使用Windows上的默认套接字实现,我无法找到任何有效的方法来停止Socket.connect(). This answer表明Thread.interrupt()不起作用,但Socket.close()会.但是,在我的审判中,后者也没有用.

我的目标是快速,干净地终止应用程序(即在套接字终止后需要完成清理工作).我不想在Socket.connect()中使用超时,因为可以在合理的超时到期之前终止进程.

import java.net.InetSocketAddress;
import java.net.Socket;


public class ComTest {
    static Socket s;
    static Thread t;

    public static void main(String[] args) throws Exception {
        s = new Socket();
        InetSocketAddress addr = new InetSocketAddress("10.1.1.1",11);
        p(addr);
        t = Thread.currentThread();
        (new Thread() {
            @Override
            public void run() {
                try {
                    sleep(4000);
                    p("Closing...");
                    s.close();
                    p("Closed");
                    t.interrupt();
                    p("Interrupted");
                } catch (Exception e) {
                    e.printStackTrace();
                }
            }
        }).start();
        s.connect(addr);
    }

    static void p(Object o) {
        System.out.println(o);
    }
}

输出：

/10.1.1.1:11
Closing...
Closed
Interrupted
(A few seconds later)
Exception in thread "main" java.net.SocketException: Socket operation on nonsocket: connect