8
使用JPA @OneToMany关联时,@ JoinColumn和mappedBy有什么区别
之间有什么区别? @Entity public class Company { @OneToMany(cascade = CascadeType.ALL , fetch = FetchType.LAZY) @JoinColumn(name = "companyIdRef", referencedColumnName = "companyId") private List<Branch> branches; ... } 和 @Entity public class Company { @OneToMany(cascade = CascadeType.ALL , fetch = FetchType.LAZY, mappedBy = "companyIdRef") private List<Branch> branches; ... }
516
java
hibernate
jpa
orm
one-to-many