Spring STOMP over Websocket - " private"消息

时间:2017-08-17 07:38:27

标签: java spring websocket

我正在进行WebSocket聊天。我做了一个简单的发送给每个人的每条消息。但我试图制作私人消息,我真的不知道如何做到这一点。我尝试了不同的选择,但我不了解如何使其发挥作用。

这是我的代码:

WebSocketConfig.java

@Configuration
@EnableWebSocketMessageBroker
public class WebSocketConfig extends AbstractWebSocketMessageBrokerConfigurer {

    @Override
    public void configureMessageBroker(MessageBrokerRegistry config) {
        config.enableSimpleBroker("/topic/", "/queue/", "/user/");
        config.setApplicationDestinationPrefixes("/app");
    }

    @Override
    public void registerStompEndpoints(StompEndpointRegistry registry) {
        registry.addEndpoint("/gs-guide-websocket").withSockJS();
    }
}

GreetingController.java

@Controller
public class GreetingController {

    @MessageMapping("/hello")
    @SendTo("/topic/greetings")
    public Greeting greeting(Message message) throws Exception {
        return new Greeting(message.getFrom_user_id(), message.getMessage(), message.getTo_user_id());

    }
}

我的js用于连接和发送消息:

function connect() {
var socket = new SockJS('/gs-guide-websocket');
stompClient = Stomp.over(socket);
var theUserId = 1;
stompClient.connect({user:theUserId}, function (frame) {
    setConnected(true);
    console.log('Connected: ' + frame);
    //stompClient.subscribe('/topic/greetings', function (greeting) {
    stompClient.subscribe('/topic/greetings', function (greeting) {
        showGreeting(JSON.parse(greeting.body).content);
    });
});
}


function sendName() {
stompClient.send("/app/hello", {}, JSON.stringify(
        {
            'from_user_id': parseInt($("#from_user_id").val()), 
            'message': $("#message").val(),
            'to_user_id': parseInt($("#to_user_id").val())
        }));
}

如何使私信有效?有人可以解释一下它应该如何运作吗?

干杯安德鲁!

1 个答案:

答案 0 :(得分:1)

我们可以使用 SimpMessagingTemplate 将邮件发送到适当的目标队列

文档:https://docs.spring.io/spring/docs/current/javadoc-api/org/springframework/messaging/simp/SimpMessagingTemplate.html

    @Autowired
    private SimpMessagingTemplate template;

    @MessageMapping("/hello")
    public void greeting(Message message) throws Exception {

     this.template.convertAndSend("/topic/"+message.getFrom_user_id(),message);

    }

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