我已关注Quetion1和 Quetion2从堆栈溢出向特定客户端发送消息,基于其sessionId,但找不到成功。
下面是我的示例 RestController 类
@RestController
public class SpringSessionTestApi {
@Autowired
public SimpMessageSendingOperations messagingTemplate;
@MessageMapping("/messages")
public void greeting(HelloMessage message, SimpMessageHeaderAccessor headerAccessor) throws Exception {
String sessionId = (String) headerAccessor.getSessionAttributes().get("SPRING.SESSION.ID");
messagingTemplate.convertAndSendToUser(sessionId,"/queue/test",message, createHeaders(sessionId));
}
private MessageHeaders createHeaders(String sessionId) {
SimpMessageHeaderAccessor headerAccessor = SimpMessageHeaderAccessor.create(SimpMessageType.MESSAGE);
headerAccessor.setSessionId(sessionId);
headerAccessor.setLeaveMutable(true);
return headerAccessor.getMessageHeaders();
}
}
Session Id:当客户端发送createSession请求时,会生成新的spring sessionId,并将其存储在MongoDB中。之后,当客户端发送 Web 套接字连接请求时,会收到相同的 sessionId,该 sessionId 按预期存储在 mongoDb 中。直到这一切都工作正常。
现在我的工作是根据 sessionId 将响应发送回客户端。 为此,我有以下网络套接字类:
@Configuration
@EnableScheduling
@EnableWebSocketMessageBroker
public class WebSocketConfig extends
AbstractSessionWebSocketMessageBrokerConfigurer<ExpiringSession> {
@Override
protected void configureStompEndpoints(StompEndpointRegistry registry) {
registry.addEndpoint("/messages");
}
public void configureMessageBroker(MessageBrokerRegistry registry) {
registry.enableSimpleBroker("/queue");
registry.setApplicationDestinationPrefixes("/app");
}
}
我用来连接的示例客户端代码是:
function connect() {
stompClient = Stomp.client('ws://localhost:8016/messages');
stompClient.debug = null;
stompClient.connect({}, function (frame) {
setConnected(true);
console.log('Connected: ' + frame);
stompClient.subscribe('/user/queue/test', function (greeting) {
console.log("Hello "+greeting);
console.log("Greeting body "+JSON.parse(greeting.body));
});
});
}
请帮忙,我哪里做错了? 提前致谢!
最佳答案
如果您像这样使用/user channel ,请尝试按所述 here 传递用户。 .
@MessageMapping("/messages")
public void greeting(HelloMessage message, SimpMessageHeaderAccessor headerAccessor, Principal principal)
throws Exception {
messagingTemplate.convertAndSendToUser(principal.getName(), "/queue/test", message);
}
关于java - Spring session + Spring Web 套接字。根据 session ID 向特定客户端发送消息,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/43536507/