@Component 拿不到dao层

@Slf4j
@ServerEndpoint("/webSocket/addOrder/{userId}")
@Component
public class AddOrderSocket {
    

 @Resource
  ScreenshotLogRepository screenshotLogRepository;

拿不到dao层

这样拿

package com.gm.wj.service;

import com.gm.wj.entity.ScreenshotLog;
import com.gm.wj.repository.ScreenshotLogRepository;
import org.springframework.stereotype.Component;


import javax.annotation.PostConstruct;
import javax.annotation.Resource;


@Component
public class WebSocketDbService {
    


// public static MqttEquipRedService mqttRideService;
    public static WebSocketDbService webSocketDbService;

    @Resource
   public  ScreenshotLogRepository screenshotLogRepository;

    @PostConstruct
    public void init() {
    
        webSocketDbService = this;
    }


}

  ScreenshotLogRepository screenshotLogRepository=
        WebSocketDbService.webSocketDbService.screenshotLogRepository;

        log.info("screenshotLogRepository {}",screenshotLogRepository);
        if(screenshotLogRepository==null){
    
            log.info("screenshotLogRepository 是null ");
            return;
        }

        log.info("screenshotLog {}",screenshotLog);
        screenshotLog.setCreateTime(new Date());
// ScreenshotLog screenshotLog = jsonObject.toJavaObject(ScreenshotLog.class);
        ScreenshotLog save = screenshotLogRepository.save(screenshotLog);
        log.info("save {}",save);