java - 在websocket客户端上配置Jetty密码教程

Question

我正在关注tutorial使用 Eclipse 让 Web 套接字客户端在 Java 中工作，但每当我尝试运行程序代码时，我都会遇到此消息:

用法 - java org.eclipse.jetty.security.Password []

如果密码是？，系统将提示用户输入密码

这是客户端的代码

public class SimpleEchoClient
{
    public static void main(String[] args)
    {
        String destUri = "ws://echo.websocket.org";
        if (args.length > 0)
        {
            destUri = args[0];
        }

        WebSocketClient client = new WebSocketClient();
        SimpleEchoSocket socket = new SimpleEchoSocket();
        try
        {
            client.start();

            URI echoUri = new URI(destUri);
            ClientUpgradeRequest request = new ClientUpgradeRequest();
            client.connect(socket,echoUri,request);
            System.out.printf("Connecting to : %s%n",echoUri);

            // wait for closed socket connection.
            socket.awaitClose(5,TimeUnit.SECONDS);
        }
        catch (Throwable t)
        {
            t.printStackTrace();
        }
        finally
        {
            try
            {
                client.stop();
            }
            catch (Exception e)
            {
                e.printStackTrace();
            }
        }
    }
}

这是 websocket 连接的代码

@WebSocket(maxTextMessageSize = 64 * 1024)
public class SimpleEchoSocket
{
    private final CountDownLatch closeLatch;
    @SuppressWarnings("unused")
    private Session session;

    public SimpleEchoSocket()
    {
        this.closeLatch = new CountDownLatch(1);
    }

    public boolean awaitClose(int duration, TimeUnit unit) throws InterruptedException
    {
        return this.closeLatch.await(duration,unit);
    }

    @OnWebSocketClose
    public void onClose(int statusCode, String reason)
    {
        System.out.printf("Connection closed: %d - %s%n",statusCode,reason);
        this.session = null;
        this.closeLatch.countDown(); // trigger latch
    }

    @OnWebSocketConnect
    public void onConnect(Session session)
    {
        System.out.printf("Got connect: %s%n",session);
        this.session = session;
        try
        {
            Future<Void> fut;
            fut = session.getRemote().sendStringByFuture("Hello");
            fut.get(2,TimeUnit.SECONDS); // wait for send to complete.

            fut = session.getRemote().sendStringByFuture("Thanks for the conversation.");
            fut.get(2,TimeUnit.SECONDS); // wait for send to complete.

            session.close(StatusCode.NORMAL,"I'm done");
        }
        catch (Throwable t)
        {
            t.printStackTrace();
        }
    }

    @OnWebSocketMessage
    public void onMessage(String msg)
    {
        System.out.printf("Got msg: %s%n",msg);
    }
}

有人知道如何解决这个问题吗？

Answer 1

该教程和代码示例没有密码要求。

您收到的消息是因为您直接运行 org.eclipse.jetty.security.Password 类，而不是您的 websocket 客户端代码。

更改运行已编译项目的方式以运行正确的类(从外观上看，这将是您的类 SimpleEchoClient，但您没有显示包 namespace ，因此类名可以是不完整)