jack_zhang

参考：https://github.com/zhangzhenhuajack/spring-data-jpa-guide/blob/master/2.3/jpa_jquery_annotation/src/main/java/com/example/jpa/example1/UserDtoRepository.java

更详细的原理讲解见：https://kaiwu.lagou.com/course/courseInfo.htm?courseId=490&sid=20-h5Url-0&buyFrom=2&pageId=1pz4#/detail/pc?id=4721





1：When MyEntity.class extend AbstractPersistable . This problem while reshow. 2：Because EntityBinding source code cls.getMethods() while get two getId() Methods，have the some ’AnnotationPresent(Id.class)‘，but One is the interface Persistable‘s Method and return...

+1

JPA 利用left join 返回DTO的例子 ```` @Query(value = "select new com.mega.inventory.service.impl.rule.InventoryUnitDto(u.id, r.registryId, r.registryName, r.registryType, u.inventoryUnitValue, u.packageUnitValue) " + "from RegistryShadow r left join InventoryUnit u on r.registryId = u.registryId and r.registryType...

JPQL比较难，看你的顺序不是 order by Desc ?