Invalid handshake response getStatus: 404 Not Found for a websocket connection

Cloud Version : Greenwich.RELEASE Spring Boot Version: 2.1.6.RELEASE

I am trying to connect to a simple websocket and to route the connection through the gateway. Configuration is the following

  routes:
      - id: websocket
        uri: ws://localhost:10000
        predicates:
        - Path=/ws/**

I then use a simple java client to try connecting through the gateway with the socket and I get the following error:

io.netty.handler.codec.http.websocketx.WebSocketHandshakeException: Invalid handshake response getStatus: 404 
	at io.netty.handler.codec.http.websocketx.WebSocketClientHandshaker13.verify(WebSocketClientHandshaker13.java:226) ~[netty-codec-http-4.1.36.Final.jar:4.1.36.Final]
	at io.netty.handler.codec.http.websocketx.WebSocketClientHandshaker.finishHandshake(WebSocketClientHandshaker.java:276) ~[netty-codec-http-4.1.36.Final.jar:4.1.36.Final]
	at reactor.netty.http.client.WebsocketClientOperations.onInboundNext(WebsocketClientOperations.java:113) ~[reactor-netty-0.8.9.RELEASE.jar:0.8.9.RELEASE]
	at reactor.netty.channel.ChannelOperationsHandler.channelRead(ChannelOperationsHandler.java:91) ~[reactor-netty-0.8.9.RELEASE.jar:0.8.9.RELEASE]
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:374) ~[netty-transport-4.1.36.Final.jar:4.1.36.Final]
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:360) ~[netty-transport-4.1.36.Final.jar:4.1.36.Final]
	at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:352) ~[netty-transport-4.1.36.Final.jar:4.1.36.Final]
	at io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:102) ~[netty-codec-4.1.36.Final.jar:4.1.36.Final]

I have not idea what I am doing wrong.

demo-micro.zip

[TYsewyn]

Hi @hectorlicea! I found the problem with your setup. The gateway was trying to connect to ws://localhost:10000/ws/test-websocket/websocket instead of ws://localhost:10000/test-websocket/websocket. Adding the StripPrefix=1 filter in your application.yml file fixed the issue.

Your route would look like this:

routes:
  - id: websocket
    uri: ws://localhost:10000
    filters:
      - StripPrefix=1
    predicates:
      - Path=/ws/**

Hope that helped! 😃

[tinarooot]

我遇到了，没有解决 我也配置了 I encountered it and did not solve it. I also configured it

`r.netty.http.client.HttpClientConnect : [id: 0x27daedae, L:/192.168.3.26:52784 - R:192.168.3.26/192.168.3.26:9444] The connection observed an error

io.netty.handler.codec.http.websocketx.WebSocketHandshakeException: Invalid handshake response getStatus: 404 `