Question

我在react native中有一个应用程序，我的服务器在java（java spring）中。

我正在尝试通过webSocket获取实时数据，但是可以在它们之间进行连接。在Java Spring中，我正在与react-native-websocket一起进行本机响应，而与messaging-stomp-websocket一起进行了java spring服务器的工作。

我无法在它们之间建立连接。

react native的代码：

<WS ref={ref=> {this.ws = ref}}
    url="ws://echo.websocket.org/"
    onOpen={() => {
    console.log('Open!')
    //this.ws.send('Hello')
    }}
    onMessage={(msg)=>{console.log('Message!',msg)}}
    onError={(err)=>{console.log('Error websocket!',err)}}
    onClose={(close)=>{console.log('Close!',close)}}
    reconnect // Will try to reconnect onClose
/>

服务器上的

代码：

@Configuration
@EnableWebSocketMessageBroker
public class WebSocketConfig extends AbstractWebSocketMessageBrokerConfigurer {
    @Override
    public void registerStompEndpoints(StompEndpointRegistry registry) {
        registry.addEndpoint("/gs-guide-websocket").setAllowedOrigins("*").withSockJS();
    }

    @Override
    public void configureMessageBroker(MessageBrokerRegistry config) {
        //the client subscribe (listen) to /dispenser
        config.enableSimpleBroker("/dispenser");
        //perfix for the client. it should be on the client /app/{MessageMapping variable}
        config.setApplicationDestinationPrefixes("/app");
    }

}

如果这不是实时数据处理的方法，我想知道是否还有其他方法

Answer 1

您可以使用sockjs-client和stompjs。

导入

import SockJS from 'sockjs-client';
import Stomp from 'stompjs';

您必须执行以下几行并订阅该路径。

    //your end point here
    var sock = new SockJS('http://localhost:8102/api/ws');
let stompClient = Stomp.over(sock);
sock.onopen = function() {
  console.log('open');
}
stompClient.connect({}, function (frame) {
   console.log('Connected: ' + frame);
   //subscribing path
   stompClient.subscribe('/topic/public', function (greeting) {
     console.log(greeting);
     //you can execute any function here
   });
});

要发送邮件时

stompClient.send("/app/sendMessage", {},"your message here");

React Native和Java之间的WebSocket

1 个答案: