静态工具类中使用注解注入service 空指针

@Component
public class QiniuUtil {

    @Autowired
    private NoodleService noodleService;

    private static MsgUtils ms;

    @PostConstruct
    public void init(){
        ms = this;
        ms.noodleService = this.noodleService;
    }

    public static String dealState(String msg){
        ms.noodleService.add(msg);
    }