Websocket中的握手错误？

Question

我完成了聊天应用程序的服务器编码。我能够将响应发送到服务器并检索它。现在我正在进行客户端编码。

这是我的第一个文件

      public class Client
       {
      public static void main(String ar[]) throws URISyntaxException, DeploymentException, IOException
        {     
      ChatRoomClientEndPoint chatroomClientEndPoint = new ChatRoomClientEndPoint();
    BufferedReader bufferedReader  = new BufferedReader(new InputStreamReader(System.in));
    System.out.println("enter your username");
    String message = null;
    while(true)
    {
        message = bufferedReader.readLine();
                    chatroomClientEndPoint.sendMessage(message);
    }
        }   
            }

这是我的第二个文件

     @ClientEndpoint
     public class ChatRoomClientEndPoint 
     {
     Session session = null;
     public ChatRoomClientEndPoint() throws URISyntaxException, DeploymentException, IOException
      {
    URI uRI = new URI("ws://localhost:8080/WebSocketPrj01/ServerEndPointDemo");
    ContainerProvider.getWebSocketContainer().connectToServer(this,uRI);
       }
      @OnOpen
      public void processOpen(Session session)
      {
this.session = session;
      }
      @OnMessage
      public void processMessage(String message)
     {
System.out.println(Json.createReader( new               StringReader(message)).readObject().getString("message"));
     }
     public void sendMessage(String message) throws IOException
     {
session.getBasicRemote().sendText(message);
    }

    }

我正在使用netbeans，而ServerEndPointDemo是在netbeans中名为WebSocketPrj01的另一个项目中。当我运行Client类时，它会给出以下异常

  

线程中的异常＆＃34; main＆＃34; javax.websocket.DeploymentException：握手错误。