@Autowired自動注入爲null解決方案

    @Autowired
	private PositionService service;
	//靜態初始化當前類
	private static TimeServerHandler timeServerHandler;
	
	public void setPositionService(PositionService positionService) {
		this.service = positionService;
	}
	@PostConstruct
	public void init() {
		timeServerHandler = this;
		timeServerHandler.service = this.service;
	}

@PostConstruct註解表示該方法會在Bean初始化之後執行

調用方法

timeServerHandler.service.getOrgIdByDeviceId();