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尝试使用 crudRepository 获取数据时遇到问题。我正在使用本机查询从数据库中获取记录数，但出现以下错误。

com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ')  )' at line 1
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) ~[na:1.8.0_171]
at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source) ~[na:1.8.0_171]

我在存储库中的查询是：

@Query(value = "select count(1) from user_records upr  where RECORD_ID in  ( SELECT record_id FROM region_record_relation where region_id in :regionIds) ", nativeQuery = true)
public int findAllRecordsforRegionIds(@Param("regionIds") List<Long> regionIds);

我不知道如何解决这个问题。我正在使用 Mysql 数据库。

show-sql 设置已打开。但我得到的是：

 2018-08-02 20:06:17.210  WARN 3764 --- [nio-8088-exec-2] o.h.engine.jdbc.spi.SqlExceptionHelper   : SQL Error: 1064, SQLState: 42000
 2018-08-02 20:06:17.210 ERROR 3764 --- [nio-8088-exec-2] o.h.engine.jdbc.spi.SqlExceptionHelper   : You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ')  )' at line 1
 2018-08-02 20:06:17.231 ERROR 3764 --- [nio-8088-exec-2] o.a.c.c.C.[.[.[/].[dispatcherServlet]    : Servlet.service() for servlet [dispatcherServlet] in context with path [] threw exception [Request processing failed; nested exception is org.springframework.orm.jpa.JpaSystemException: org.hibernate.exception.SQLGrammarException: could not extract ResultSet; nested exception is javax.persistence.PersistenceException: org.hibernate.exception.SQLGrammarException: could not extract ResultSet] with root cause

com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ')  )' at line 1
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) ~[na:1.8.0_171]
at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source) ~[na:1.8.0_171]
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source) ~[na:1.8.0_171]
4

1 回答 1

4 
@Query(value = "select count(1) from user_records upr  where RECORD_ID in  ( SELECT record_id FROM region_record_relation where region_id in :regionIds)

应该

@Query(value = "select count(1) from user_records upr  where RECORD_ID in  ( SELECT record_id FROM region_record_relation where region_id in (:regionIds)))

有更好的方法来编写它会更有效。但这应该可以解决错误。

于 2018-08-02T15:03:57.380 回答