Spring data jpa save can not get id

Question

My entity id is generated, and it was working fine when I use DAO instead of Spring data JPA.

@Id
@Column(name = TABLE_COLUM_NAME_ID)
@GeneratedValue
private         


        

Answer 1

1. You should use the repository.saveAndFlush(); method:

MyObject savedObject= repository.saveAndFlush(newObject);

2. In the Entity object description, you should add the following attribute(@GeneratedValue(strategy = GenerationType.AUTO)) to the related field(id):

@Id   
@Column(name = "id")   
@GeneratedValue(strategy = GenerationType.AUTO)   
public long getId() {  
    return id;  
}