• The simple library is used to support the forward proxy of websocket for applications which are based in the framework of spring boot.
• The library is based on JDK8.

spring-websocket-forward is available from Maven Central.

	<dependency>
		<groupId>com.github.ji4597056</groupId>
		<artifactId>spring-websocket-forward</artifactId>
		<version>1.0.2.RELEASE</version>
	</dependency>

Spring Cloud Zuul and Spring Boot Websocket do not support the forwarding proxy of web sockets. However, we usually need the proxy of weboscket.

• Enable it like so:

@EnableWsForward
@SpringBootApplication
public class Application {
	public static void main(String[] args) {
		SpringApplication.run(Application.class, args);
	}
}

• Then in your spring application properties(e.g application.yml)

ws:
  forward:
    enabled: true
    handlers:
      test:
        enabled: true
        prefix: /test
        uri: /**
        serviceId: test-client
        allowedOrigins: "*"
        withJs: false

With this you can accurately get websockets support from proxied back-end service.

if you want to set your own AbstractWsServerHandler or HandshakeInterceptor,config bean of WsHandlerRegistration like:

    @Bean
    public WsHandlerRegistration wsHandlerRegistration() {
        WsHandlerRegistration registration = new DefaultWsHandlerRegistration();
        registration.addHandler(new TestWsServerHandler());
        registration.addInterceptor(new TestHandshakeInterceptor());
        return registration;
    }

Then you can set the property of handlerClass or interceptorClasses.