Question

我在Java中有一个Websocket客户端，可以连接到服务器。它每10秒钟从服务器接收一次心跳消息（直到30秒钟消失，然后由于某种原因断开连接，但现在暂时将其忽略）。但是，如果在最初的30秒钟内发送消息，我会立即收到通知，通知该连接已关闭，原因码为1000。

我在python中有一个类似的客户端，可以正常工作，并连接到相同的服务器位置。我实际上正在尝试在Java中实现相同的功能，但无法使其正常工作。

websocket客户端代码段。我必须重写beforeRequest才能传递Cookie：

ClientEndpointConfig clientEndpointConfig = ClientEndpointConfig.Builder.create()
    .configurator(new ClientEndpointConfig.Configurator() {
        @Override
        public void beforeRequest(Map<String, java.util.List<String>> headers) {
            super.beforeRequest(headers);
            List<String> cookieList = headers.get("Cookie");
            if (null == cookieList) {
                cookieList = new ArrayList<String>();
            }
            cookieList.add("User-Session-Token=\"" + SESSION_COOKIE + "\"");     // set your cookie value here
            headers.put("Cookie", cookieList);
            System.out.println(cookieList.size() + ": " + cookieList.get(0));
        }
    }).build();


String uri = "wss://live.someurl.com/sockjs/997/" + SESSION_ID + "/websocket";

Endpoint myEndpoint = new MyClientEndpoint();

WebSocketContainer container = ContainerProvider.getWebSocketContainer();

Session session = container.connectToServer(myEndpoint,     clientEndpointConfig, URI.create(uri));   

String name = "{\"path\":\"blah\"}";
System.out.println("Sending message to endpoint: " + name);
Future<Void> abc = session.getAsyncRemote().sendText(name);

终点：

@ClientEndpoint
public class MyClientEndpoint extends Endpoint{


@Override
public void onOpen(Session session, EndpointConfig arg1) {

    session.addMessageHandler(new MessageHandler.Whole<String>() {

        @Override
        public void onMessage(String arg0) {
            // TODO Auto-generated method stub
            System.out.println("Message received: " + arg0);
        }

    });
}

}

如果有帮助，起作用的python代码的内脏看起来像这样：

class MyWebsocketClass:
def __await__(self):
    log("Initializing Classes......")
    return self._async_init().__await__()

async def _async_init(self):
    #create socket conn
    self._conn = connect(f'wss://live.someurl.com/sockjs/997/{SESSION_ID}/websocket',
                         extra_headers=[("Cookie", SESSION_COOKIE)])
    log("Connected to websocket......")
    self.websocket = await self._conn.__aenter__()  # not sure what this is?
    return self

async def close(self):
    await self._conn.__aexit__(*sys.exc_info())

async def send(self, message):
    await self.websocket.send(json.dumps(message))

async def receive(self):
    return await self.websocket.recv()

为什么我发送邮件后，我的websocket客户端会断开连接？

0 个答案: