.net 服务器 WebSocket wss无法连接

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.net 服务器 WebSocket wss无法连接 出错WebSocket opening handshake timed out

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服务器HTTPS 证书都已经添加 但就是客户端无法连接
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websocket 使用wss连接
![图片说明](https://img-ask.csdn.net/upload/201811/20/1542686298_88863.png)![图片说明](https://img-ask.csdn.net/upload/201811/20/1542686378_356114.png) 首先,我使用的是C#语言发布在iis,然后利用nxgin 使用证书,把它转成https,是没有问题的。 直接访问域名也可以访问这个iis下的网站,这个网站端口是20000.然后我使用ws:xx:xx:xx:4000连接是没有问题的,但是使用wss一直连接不了。为什么求助大神。
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求一个asp.net的WebSocket示例教程 要能运行起来的 先谢谢了,刷分的请绕路
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``` 7-May-2017 22:13:18.552 严重 [http-nio-8080-exec-3] org.springframework.web.socket.sockjs.transport.session.WebSocketServerSockJsSession.handleMessage Broken data received. Terminating WebSocket connection abruptly java.lang.IllegalStateException: A SockJsMessageCodec is required but not available: Add Jackson to the classpath, or configure a custom SockJsMessageCodec. at org.springframework.util.Assert.state(Assert.java:70) at org.springframework.web.socket.sockjs.transport.TransportHandlingSockJsService.getMessageCodec(TransportHandlingSockJsService.java:134) at org.springframework.web.socket.sockjs.transport.session.WebSocketServerSockJsSession.handleMessage(WebSocketServerSockJsSession.java:186) at org.springframework.web.socket.sockjs.transport.handler.SockJsWebSocketHandler.handleTextMessage(SockJsWebSocketHandler.java:92) at org.springframework.web.socket.handler.AbstractWebSocketHandler.handleMessage(AbstractWebSocketHandler.java:43) at org.springframework.web.socket.adapter.standard.StandardWebSocketHandlerAdapter.handleTextMessage(StandardWebSocketHandlerAdapter.java:110) at org.springframework.web.socket.adapter.standard.StandardWebSocketHandlerAdapter.access$000(StandardWebSocketHandlerAdapter.java:42) at org.springframework.web.socket.adapter.standard.StandardWebSocketHandlerAdapter$3.onMessage(StandardWebSocketHandlerAdapter.java:81) at org.springframework.web.socket.adapter.standard.StandardWebSocketHandlerAdapter$3.onMessage(StandardWebSocketHandlerAdapter.java:78) at org.apache.tomcat.websocket.WsFrameBase.sendMessageText(WsFrameBase.java:389) at org.apache.tomcat.websocket.server.WsFrameServer.sendMessageText(WsFrameServer.java:110) at org.apache.tomcat.websocket.WsFrameBase.processDataText(WsFrameBase.java:489) at org.apache.tomcat.websocket.WsFrameBase.processData(WsFrameBase.java:288) at org.apache.tomcat.websocket.WsFrameBase.processInputBuffer(WsFrameBase.java:127) at org.apache.tomcat.websocket.server.WsFrameServer.onDataAvailable(WsFrameServer.java:73) at org.apache.tomcat.websocket.server.WsHttpUpgradeHandler.upgradeDispatch(WsHttpUpgradeHandler.java:148) at org.apache.coyote.http11.upgrade.UpgradeProcessorInternal.dispatch(UpgradeProcessorInternal.java:54) at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:53) at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:796) at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1368) at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) at java.lang.Thread.run(Thread.java:745) ```
websocket不知什么原因莫名断开
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