如何在Spring 5 webflux websocket客户端

Question

我的Spring 5 webflux websocket客户端在服务器发送大量消息时抛出异常。 有人能告诉我如何在客户端增加帧大小？

Flux<String> input = Flux.just(StrJSON);

WebSocketClient client = new ReactorNettyWebSocketClient();
client.execute(new URI(url),
      session ->  session
                  .send(input.map(session::textMessage))
                  .thenMany(
                      session.receive()
                            .map(t->t.getPayloadAsText())

                            .log()
                    )
                    .then()          
        ).block();

间歇性例外：

io.netty.handler.codec.CorruptedFrameException: Max frame length of 65536 has been exceeded.    
    at io.netty.handler.codec.http.websocketx.WebSocket08FrameDecoder.protocolViolation(WebSocket08FrameDecoder.java:412)
    at io.netty.handler.codec.http.websocketx.WebSocket08FrameDecoder.decode(WebSocket08FrameDecoder.java:277)
    at io.netty.handler.codec.ByteToMessageDecoder.decodeRemovalReentryProtection(ByteToMessageDecoder.java:489)
 .....

Answer 1

可能对您有所帮助。

根据此merge request，应将客户端设置为ReactorNettyWebSocketClient类型，而不是接口WebSocketClient。

然后您可以致电client.setMaxFramePayloadLength(maxFramePayload);

因此在您的代码中，您应该具有：

ReactorNettyWebSocketClient client = new ReactorNettyWebSocketClient();
client.setMaxFramePayloadLength(2097152);

client.execute(new URI(url),
      session ->  session
                  .send(input.map(session::textMessage))
                  .thenMany(
                      session.receive()
                            .map(t->t.getPayloadAsText())

                            .log()
                    )
                    .then()          
        ).block();