Question

我写了一些逻辑，表示同时进行近200个websocet连接与交换。我使用第三方api，它基于 org.eclipse.jetty.websocket.api 。我有必须重写的此方法。

try {
            URI uri = new URI(websocketBaseUrl + url);
            SslContextFactory sslContextFactory = new SslContextFactory();
            sslContextFactory.setTrustAll(true); 
            WebSocketClient client = new WebSocketClient(sslContextFactory);
            client.setMaxIdleTimeout(0);
            client.start();
            return client.connect(adapter, uri).get();
        } catch (URISyntaxException  e) {
            throw new BinanceApiException("URL Syntax error: " + e.getMessage());
        } catch (Throwable e) {
            throw new BinanceApiException("Websocket error: " + e.getMessage());
        }

我在其中添加了setIdleTimeout，这样当我很长时间不接收信息时，连接不会丢失。一天一次交换关闭连接，但有2,3有时4天已经重新连接。但是最后我得到了：

java.nio.channels.ClosedChannelException：在null org.eclipse.jetty.io.WriteFlusher.onClose（WriteFlusher.java:507）在 org.eclipse.jetty.io.ssl.SslConnection $ DecryptedEndPoint.onIncompleteFlush（SslConnection.java:527）在 org.eclipse.jetty.io.AbstractEndPoint $ 2.onIncompleteFlush（AbstractEndPoint.java:54）在org.eclipse.jetty.io.WriteFlusher.write（WriteFlusher.java:331）处 org.eclipse.jetty.io.AbstractEndPoint.write（AbstractEndPoint.java:372）在 org.eclipse.jetty.websocket.common.io.FrameFlusher $ Flusher.flush（FrameFlusher.java:153）在 org.eclipse.jetty.websocket.common.io.FrameFlusher $ Flusher.process（FrameFlusher.java:217）在 org.eclipse.jetty.util.IteratingCallback.processing（IteratingCallback.java:241）在 org.eclipse.jetty.util.IteratingCallback.iterate（IteratingCallback.java:224）在 org.eclipse.jetty.websocket.common.io.FrameFlusher.enqueue（FrameFlusher.java:382）在 org.eclipse.jetty.websocket.common.io.AbstractWebSocketConnection.outgoingFrame（AbstractWebSocketConnection.java:614）在 org.eclipse.jetty.websocket.client.io.WebSocketClientConnection.outgoingFrame（WebSocketClientConnection.java:72）在 org.eclipse.jetty.websocket.common.io.AbstractWebSocketConnection.onConnectionStateChange（AbstractWebSocketConnection.java:473）在 org.eclipse.jetty.websocket.common.io.IOState.notifyStateListeners（IOState.java:184）在 org.eclipse.jetty.websocket.common.io.IOState.onReadFailure（IOState.java:498）在 org.eclipse.jetty.websocket.common.io.AbstractWebSocketConnection.readParse（AbstractWebSocketConnection.java:666）在 org.eclipse.jetty.websocket.common.io.AbstractWebSocketConnection.onFillable（AbstractWebSocketConnection.java:511）在 org.eclipse.jetty.io.AbstractConnection $ ReadCallback.succeeded（AbstractConnection.java:279）在org.eclipse.jetty.io.FillInterest.fillable（FillInterest.java:104）在 org.eclipse.jetty.io.ssl.SslConnection.onFillable（SslConnection.java:289）在 org.eclipse.jetty.io.ssl.SslConnection $ 3.succeeded（SslConnection.java:149）在org.eclipse.jetty.io.FillInterest.fillable（FillInterest.java:104）在 org.eclipse.jetty.io.ChannelEndPoint $ 2.run（ChannelEndPoint.java:124）在 org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.doProduce（EatWhatYouKill.java:247）在 org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.produce（EatWhatYouKill.java:140）在 org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.run（EatWhatYouKill.java:131）在 org.eclipse.jetty.util.thread.ReservedThreadExecutor $ ReservedThread.run（ReservedThreadExecutor.java:243）在 org.eclipse.jetty.util.thread.QueuedThreadPool.runJob（QueuedThreadPool.java:679）在 org.eclipse.jetty.util.thread.QueuedThreadPool $ 2.run（QueuedThreadPool.java:597）在java.lang.Thread.run（Thread.java:748）

我在stackoverflow上发现了这个问题，但是我看不到明确的答案。请帮助。谢谢。

Answer 1

如果希望连接在空闲时保持打开状态，则应采用以下方式配置客户端：

client.setMaxIdleTimeout(Long.MAX_VALUE);

将maxIdleTimeout设置为0会产生相反的效果：连接空闲后立即关闭。

WebSocket连接在一段时间后无法重新连接

1 个答案: