Question

当我尝试在下面实现query时，我收到以下错误：

java.lang.IllegalArgumentException: org.hibernate.hql.internal.ast.QuerySyntaxException: unexpected token

我的查询位于扩展PersonRepository

的Spring数据CrudRepository中

查询：

@Modifying
@Transactional
@Query("DELETE (entity) FROM Person entity WHERE entity.id = :id")
List<Person> deleteFromPersonWithId(@Param("id") String id);

我的语法错误是什么？

Answer 1

你没有正确的DELETE查询语法，它应该是这样的。

DELETE FROM Person entity WHERE entity.id = :id

顺便说一下，有一个delete方法可以完全按照CrudRepository本身的方式执行。所以不需要复制它。

Answer 2

查询必须是：

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Answer 3

entityManager.remove(entityInstance)

将在提交事务时从DB中删除实体。

Answer 4

更改您的注释;

@Modifying
@Transactional
@Query("DELETE FROM Person WHERE id = :id")
void deleteFromPersonWithId(@Param("id") String id);

org.hibernate.hql.internal.ast.QuerySyntaxException：意外令牌

4 个答案: