SpringData系列七：自定义Repository方法

1、创建接口PersonDao

public interface PersonDao {
	void test();
}

2、创建接口实现类PersonRepsotoryImpl

public class PersonRepsotoryImpl implements PersonDao {
	@PersistenceContext
	private EntityManager entityManager;
	
	@Override
	public void test() {
		Person person = entityManager.find(Person.class, 3);
		System.out.println("-->" + person);
	}
}

3、修改PersonRepsotory去继承PersonDao接口

public interface PersonRepsotory extends JpaRepository<Person, Integer>, JpaSpecificationExecutor<Person>,PersonDao {
}

测试：

@Test
public void testCustomRepositoryMethod(){
	personRepsotory.test();
}