Spring JPA 实体 findBy<Parameter> 在第一次尝试中给出值并在第二次调用中给出 null 的方法？

Question

I have a Spring JPA method to get entity -> findBy<SomeCode>(). The spring boot application comes up and on making a 1st rest call the entity comes up with all values filled. When tried with 2nd attempt the two entity members coming 'null' which should not be - as other values are there. And there is data in db.

This goes on alternate basis ie if I run again 3rd it comes up filled up while on 4th attempt two entity members again come null.

The code log line is as below -

 Site site = siteRepo.findByCode(inputSiteCode);
    if (site != null) {
        log.info("UPDATION CASE");
        log.info("site code -> "+ site.getCode()+" lat  -> "+ site.getLat() +" lng  -> "+ site.getLng() );

My entity piece which is coming null on alternate runs

@Column(precision = 9, scale = 6)
private BigDecimal lat;
@Column(precision = 9, scale = 6)
private BigDecimal lng;

Repository:

@Repository
public interface SiteRepository extends JpaRepository<Site, Integer> {

public List<Site> findAll();

public Site findAllById(int id);

public Site findByCode(Integer code);

}

The two logs in 2 calls are as follows:

1. Success case logs

Hibernate: select site0_.id as id1_6_, site0_.address as address2_6_, site0_.city as city3_6_, site0_.code as code4_6_, site0_.details as details5_6_, site0_.lat as lat6_6_, site0_.lng as lng7_6_, site0_.name as name8_6_, site0_.scheduler_id as schedule9_6_, site0_.state as state10_6_, site0_.zip as zip11_6_ from mow_site site0_ where site0_.code=?

2022-05-22 21:55:27.931  INFO 44064 --- [cTaskExecutor-5] c.m.d.b.SiteDataProcessor                : UPDATION CASE
2022-05-22 21:55:27.931  INFO 44064 --- [cTaskExecutor-5] c.m.d.b.SiteDataProcessor                : site code -> 83 lat  -> 32.638450 lng  -> -97.347690
address -> 7501 JBrown Rd

2. Failure (Empty lat/lng) Case

Hibernate: select site0_.id as id1_6_, site0_.address as address2_6_, site0_.city as city3_6_, site0_.code as code4_6_, site0_.details as details5_6_, site0_.lat as lat6_6_, site0_.lng as lng7_6_, site0_.name as name8_6_, site0_.scheduler_id as schedule9_6_, site0_.state as state10_6_, site0_.zip as zip11_6_ from mow_site site0_ where site0_.code=?

2022-05-22 21:56:57.356  INFO 44064 --- [cTaskExecutor-6] c.m.d.b.SiteDataProcessor                : UPDATION CASE
2022-05-22 21:56:57.364  INFO 44064 --- [cTaskExecutor-6] c.m.d.b.SiteDataProcessor                : site code -> 83 lat  -> null lng  -> null
address -> 7501 JBrown Rd

I would appreciate the help. Thanks

Answer 1

There is no issue in spring jpa find method what I just found out.

It was something written after each successful call which is making the columns null and then when I was trying they came null and refilled again.

I apologise for wasting your time. I will be deleting the post after sometime as this is not at all the issue.

Thanks