spring使用WebSocket注入service层失败问题及解决

<bean class="org.springframework.web.socket.server.standard.ServerEndpointExporter"/>

@Autowired
    private IUserService userService;

@Component
@ServerEndpoint(value = "/javaconver/{id}")
public class Conversation {
    @Autowired
    private IUserService userService;
 
 
    //concurrent包的线程安全，用来存放每个客户端对应的WebSocket
    private static ConcurrentHashMap<String, Conversation> sockets = new ConcurrentHashMap<>();
 
    @OnOpen
    public void open(Session session, @PathParam("id")String id){
        sockets.put(id,this);
        System.out.println(sockets);
    }
}

@Autowired
    private static IUserService userService;

@Component
@ServerEndpoint(value = "/javaconver/{id}")
public class Conversation {
    private static IUserService userService;
 
    @Autowired
    public void setUserService(IUserService userService) {
        System.out.println("执行seter方法");
        this.userService = userService;
        System.out.println(this.userService);
    }
    //concurrent包的线程安全，用来存放每个客户端对应的WebSocket
    private static ConcurrentHashMap<String, Conversation> sockets = new ConcurrentHashMap<>();
 
    @OnOpen
    public void open(Session session, @PathParam("id")String id){
        sockets.put(id,this);
        System.out.println(sockets);
        System.out.println(sockets.get(id).userService);
        System.out.println(Conversation.userService);
    }
 
    @OnMessage(maxMessageSize = 56666)
    public void message(String str, Session session){
        userService.out();
    }
}