小编m.n*_*ntt的帖子

当我尝试在Spring websocket上从客户端向服务器发送消息时,我遇到了问题.我在服务器上配置Websocket并在控制器上创建@Message.我通过javascript从客户端发送数据.它有时会工作,但有时会失败并在服务器上抛出消息:MissingSessionUserException:消息中没有"user"标题

这是我的WebsocketConfig:

public class WebSocketConfig extends AbstractWebSocketMessageBrokerConfigurer {
    public void registerStompEndpoints(StompEndpointRegistry registry) {
        registry.addEndpoint("/connectsocket").withSockJS();
    }
    public void configureMessageBroker(MessageBrokerRegistry config) {
        config.enableSimpleBroker("/topic");
        config.setApplicationDestinationPrefixes("/");
    }
}

这是我的MessageController:

@RestController
public class MessageController {

    @Autowired
    private SimpMessagingTemplate template;

    @MessageMapping("/websocket/message")
    public synchronized void message(Message<Object> messageObj, 
        WebMessage message, Principal principal) throws Exception {
        if (principal != null) {
            String name = principal.getName();
            template.convertAndSendToUser(name, "/topic/dynamic", new MessagePojo("stage", "value", "message"));
        }
    }
}

这是我的Javascript-backbonejs代码:

app.Models.WebsocketModel = Backbone.Model.extend({
    fetchData : function() {
        console.log("WebsocketModel: fetchData");
        var …