Java 单击带红色下划线的@Query，JpaRepository

还有一点。如何创建这样一个复杂的查询

SELECT businesscentr.email
FROM businesscentr, banners, businessbanner, click
WHERE click.id_banner = banners.id_banner AND banners.id_banner =  businessbanner.id_banner AND businessbanner.id_bc = businesscentr.id_bc

存储库扩展了JpaRepository

错误

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问题是您的参数名称与查询参数名称不匹配

你有

  @Query("select c from Click c where c.id_bannners = :idbanners and c.fullname_client = :fullnameClient")
    String sent(@Param("fullname_client") String fullnameClient, @Param("id_banner") long idbanners);

你应该

 @Query("select c from Click c where c.id_bannners = :id_banner and c.fullname_client = :fullname_client")
    String sent(@Param("fullname_client") String fullnameClient, @Param("id_banner") long idbanners);

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这就是参数和查询彼此匹配的方式

您是否读取了堆栈跟踪。。。您是否已将参数名称与查询中的实际名称进行了比较……同时，Click显示为红色。@new\u wave您发布的错误与我在回答中描述的相同。有时IDE会以红色突出显示@Query元素，因为它们无法识别实体。但是要解决参数名问题，它应该可以工作。我的错误可能在一般结构中。

  @Query("select c from Click c where c.id_bannners = :idbanners and c.fullname_client = :fullnameClient")
    String sent(@Param("fullname_client") String fullnameClient, @Param("id_banner") long idbanners);

 @Query("select c from Click c where c.id_bannners = :id_banner and c.fullname_client = :fullname_client")
    String sent(@Param("fullname_client") String fullnameClient, @Param("id_banner") long idbanners);