我可以使用方法注入查找 - 使用实体类吗?。我使用Spring + JPA + Hibernate。这允许将一个原型bean注入一个单独的bean。这也可以用实体bean吗?A是原型范围的bean。我想把A(@Entity)放到一个带有scope = singleton.Thanks的B类(例如DAO)中
@Entity
public class A(){
private String name;
private String surname;
...//get and set
}//A
public interface DAO{
public void method();
}//DAO
public class DAOImpl implements DAO{
private A object_a;
public void method(){
//In this method I use everytime a new istance of A
}//method
}//DAOImpl
答案 0 :(得分:0)
您可以使用@Embedded包含您的子bean,并在您的sql中使用。
@Entity
public class User(){
private String name;
@Embedded
private Address address;
@Bean(scope=DefaultScopes.PROTOTYPE)
public User() {
}
...//get and set
}
@Entity
public class Address(){
private String name;
...//get and set
}
public interface UserRepository extends JpaRepository<User, Long> {
@Query(value = "select u from users u where u.address.name = :addressName")
List<Blog> findUserByAddress(@Param("addressName") String addressName);
}