RSocket與springboot整合

一、依賴：

       <parent>
	        <groupId>org.springframework.boot</groupId>
	        <artifactId>spring-boot-starter-parent</artifactId>
	        <version>2.3.0.RELEASE</version>
	        <relativePath/> <!-- lookup parent from repository -->
        </parent>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-rsocket</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-webflux</artifactId>
        </dependency>

二、配置：

package com.citydo.faceadd.rsocket;

import io.rsocket.RSocketFactory;
import io.rsocket.SocketAcceptor;
import io.rsocket.transport.ServerTransport;
import io.rsocket.transport.netty.server.WebsocketRouteTransport;
import org.springframework.boot.web.embedded.netty.NettyRouteProvider;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.messaging.rsocket.annotation.support.RSocketMessageHandler;
import org.springframework.web.reactive.config.EnableWebFlux;
import reactor.netty.http.server.HttpServerRoutes;

/**
 * Config
 */
@EnableWebFlux
@Configuration
public class Config {

    /**
     * RSocket 有自己的二進制協議，在瀏覽器端的實現需要使用 RSocket 提供的 JavaScript 客戶端與服務器端交互。
     * 在 Web 應用中使用 RSocket 提供的 NodeJS 模塊 rsocket-websocket-client
     */

    @Bean
    RSocketWebSocketNettyRouteProvider rSocketWebSocketNettyRouteProvider(RSocketMessageHandler messageHandler) {
        return new RSocketWebSocketNettyRouteProvider("/ws", messageHandler.responder());
    }

    static class RSocketWebSocketNettyRouteProvider implements NettyRouteProvider {

        private final String mappingPath;

        private final SocketAcceptor socketAcceptor;

        RSocketWebSocketNettyRouteProvider(String mappingPath, SocketAcceptor  socketAcceptor) {
            this.mappingPath = mappingPath;
            this.socketAcceptor = socketAcceptor;
        }

        @Override
        public HttpServerRoutes apply(HttpServerRoutes httpServerRoutes) {
            ServerTransport.ConnectionAcceptor acceptor = RSocketFactory.receive()
                    .acceptor(this.socketAcceptor)
                    .toConnectionAcceptor();
            return httpServerRoutes.ws(this.mappingPath, WebsocketRouteTransport.newHandler(acceptor));
        }
    }

}

package com.citydo.faceadd.rsocket;

import org.reactivestreams.Publisher;
import org.springframework.messaging.handler.annotation.MessageMapping;
import org.springframework.messaging.rsocket.RSocketRequester;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.GetMapping;
import reactor.core.publisher.Flux;
import reactor.core.publisher.Mono;

import javax.annotation.Resource;

@Controller
public class ServerController {

    @Resource
    private RSocketRequester rSocketRequester;

    /**
     * 客戶端
     * @return
     */
    @GetMapping(value = "/ping")
    public Publisher<String> ping(){
        return rSocketRequester.route("ping").data(new String()).retrieveMono(String.class);
    }


    /**
     * 客服端
     * @param pong
     * @return
     */
    @MessageMapping("/pong")
    public Mono<String> pong(String pong) {
        return Mono.just("ECHO >> " + pong);
    }

    /**
     * 客服端
     * @param echo
     * @return
     */
    @MessageMapping("/echo")
    public Flux<String> echo(String echo) {
        return Flux.fromStream(echo.codePoints().mapToObj(msg -> {
            System.out.println("ECHO >> " + msg);
            return null;
        }));
    }

}

package com.citydo.faceadd.rsocket;

import io.rsocket.AbstractRSocket;
import io.rsocket.Payload;
import io.rsocket.RSocket;
import io.rsocket.RSocketFactory;
import io.rsocket.transport.netty.client.TcpClientTransport;
import io.rsocket.transport.netty.server.TcpServerTransport;
import io.rsocket.util.DefaultPayload;
import reactor.core.publisher.Mono;

/**
 * RequestResponseExample 請求-響應流模式
 */
public class RequestResponseExample {

    public static void main(String[] args) {
        RSocketFactory.receive()
                .acceptor((setupPayload, sendingSocket) -> Mono.just(
                        new AbstractRSocket() {
                            @Override
                            public Mono<Payload> requestResponse(Payload payload) {
                                return Mono.just(DefaultPayload.create("ECHO >> " + payload.getDataUtf8()));
                            }
                        }
                ))
                // 指定傳輸層實現
                .transport(TcpServerTransport.create("localhost", 7000))
                // 啓動
                .start()
                .subscribe();


        RSocket rSocket = RSocketFactory.connect()
                // 指定傳輸層實現
                .transport(TcpClientTransport.create("localhost", 7000))
                // 啓動客戶端
                .start()
                .block();

        rSocket.requestResponse(DefaultPayload.create("hello"))
                .map(Payload::getDataUtf8)
                .doOnNext(System.out::println)
                .block();

        rSocket.dispose();

    }

}