Tool class static method calls @autowired injected service

@Component
public class OrgDeptLeaderFunctionUtil {
    
    @Autowired
    private ISysOrgElementComponentApi orgElementComponentApi;

    private static OrgDeptLeaderFunctionUtil orgDeptLeaderFunctionUtil;

    public void setISysOrgElementComponentApi(ISysOrgElementComponentApi orgElementComponentApi){
    
        this.orgElementComponentApi = orgElementComponentApi;
    }

    @PostConstruct
    public void init() {
    
        orgDeptLeaderFunctionUtil = this;
        orgDeptLeaderFunctionUtil.orgElementComponentApi = this.orgElementComponentApi;
    }

    public static IdNameProperty getDeptLeader(List<String> ids, String level) {
    
        SysOrgQueryVO queryVO = new SysOrgQueryVO();
        queryVO.setIds(ids);
        queryVO.setFiledCode("departmentLevel");
        queryVO.setFiledValue(level);
        return orgDeptLeaderFunctionUtil.orgElementComponentApi.queryDeptLeader(queryVO);
    }
}