Spring Data JPA存储库：派生查询中的IN子句不起作用 [英] Spring Data JPA repositories: IN-clause in derived query not working

问题描述

我有一个如下所示的存储库：

I have a repository that looks like this:

public interface UserRepository extends JpaRepository<User, Long>
{
    User findByEmailIgnoreCase(String email);

    @Query("select u from User u where u.id in (:ids)")
    Set<User> getByIdInSet(@Param("ids") Set<Long> ids);
}

当我打电话给 getByIdInSet 我收到以下错误：

When I call getByIdInSet I get the following error:

Caused by: java.lang.IllegalArgumentException: You have attempted to set a value of type class org.eclipse.persistence.indirection.IndirectSet for parameter ids with expected type of class java.lang.Long from query string select u from User u where u.id in (:ids).
    at org.eclipse.persistence.internal.jpa.QueryImpl.setParameterInternal(QueryImpl.java:933)
    at org.eclipse.persistence.internal.jpa.EJBQueryImpl.setParameter(EJBQueryImpl.java:593)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:606)

显然我不知道是什么意思，因为我尝试更改各种数据类型并仍然得到相同的错误。我传递的id组只包含一个id。请指出正确的方向。

Apparently I don't know what means because I have tried changing all sorts of data types and still get the same error. The set of ids I am passing contains just one id. Please point me in the right direction.

推荐答案

尝试不带括号

@Query("select u from User u where u.id in :ids")

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