java中在工具类中注入Service方法

@Autowired
//将Service注入进来
private QiReturnRecordInfoService qiReturnRecordInfoService;
//定义一个相对的静态实例
private static QiReturnRecordInfoService q;

//这个注解是刚启动就执行的意思
@PostConstruct
public void init() {
//项目刚启动进行赋值
    q = this.qiReturnRecordInfoService;
    log.info("intit");
}

//q进行增删改查操作