Hibernate mapping relationships

1, primary key same one-to-one relationship (store and merchant account management)

Two entity classes use the same primary key, and conversely, bodies with the same primary key are treated as one-to-one relationships. This saves the foreign Key association.

Store Category:

@Entity @table (name= "Tb_store") Public classStore {@Id @GeneratedValue (strategy=Generationtype.auto)PrivateInteger ID; /*** Detailed store address outside of district information*/@Column (Nullable=false)    PrivateString address; /*** Business Name*/@Column (Nullable=false)    PrivateString name;}

Merchant Account:

/** * @authorJL User Class*/@Entity//entity class configuration@Table (name = "Tb_seller")//Table Configuration Public classSeller {/*** This is only set as the primary key, but not self-growing. */@IdPrivateInteger ID; @OneToOne @PrimaryKeyJoinColumnPrivateStore store; }

When it was created:

Create a store first, then a new seller, assign the store's ID to seller, and then create the seller

Done