sissue：弹簧数据中缺少命名参数JPA查询后多个插入后查询

Question

问题：

i有一个弹簧数据JPA查询，最初效果很好，但在插入记录三次后失败。异常消息说，即使正确传递了一些命名的参数，也缺少它们。

java.lang.IllegalArgumentException: No parameter named ':param3' in query with named parameters [param2, param1]
java.lang.IllegalArgumentException: No parameter named ':param4' in query with named parameters [param2, param1]
java.lang.IllegalArgumentException: No parameter named ':param5' in query with named parameters [param2, param1]

尾tail：

在用相同的param2和param3值插入实体记录三次之后，发生这种情况。在此之前，无论发射多少次，查询都可以正常工作。插入三个实体记录后，此查询随后的所有使用都会产生错误。

工作正常，直到我插入三个（或更多）实体记录：

@Query("SELECT ft FROM Entity ft WHERE ft.someField1.param1 = :param1 AND ft.param2 = :param2 " +
        "ORDER BY " +
        "(CASE WHEN ft.param3 = :param3 THEN 0 ELSE 1 END), " +
        "(CASE WHEN ft.param3 = :param3 AND ft.param4 = :param4 AND ft.param5 = :param5 THEN 0 " +
        "     WHEN ft.param3 = :param3 AND (ft.param4 = :param4 OR ft.param5 = :param5) THEN 1 " +
        "     WHEN ft.param3 = :param3 THEN 2 " +
        "     WHEN ft.param4 = :param4 AND ft.param5 = :param5 THEN 3 " +
        "     WHEN (ft.param4 = :param4 OR ft.param5 = :param5) THEN 4 ELSE 5 END), " +
        "ft.updatedTimestamp DESC")
Page<Entity> queryEntitiesWithCustomSorting(
        @Param("param1") String param1,
        @Param("param2") String param2,
        @Param("param3") String param3,
        @Param("param4") EnumA param4,
        @Param("param5") EnumB param5,
        Pageable pageable);

fix：

I添加了虚拟条件，以确保param3，param4和param5始终包含在查询中：

@Query("SELECT ft FROM Entity ft WHERE ft.someField1.param1 = :param1 AND ft.param2 = :param2 " +
        "AND (:param3 IS NULL OR ft.param3 IS NOT NULL) " +
        "AND (:param4 IS NULL OR ft.param4 IS NOT NULL) " +
        "AND (:param5 IS NULL OR ft.param5 IS NOT NULL) " +
        "ORDER BY " +
        "(CASE WHEN ft.param3 = :param3 THEN 0 ELSE 1 END), " +
        "(CASE WHEN ft.param3 = :param3 AND ft.param4 = :param4 AND ft.param5 = :param5 THEN 0 " +
        "     WHEN ft.param3 = :param3 AND (ft.param4 = :param4 OR ft.param5 = :param5) THEN 1 " +
        "     WHEN ft.param3 = :param3 THEN 2 " +
        "     WHEN ft.param4 = :param4 AND ft.param5 = :param5 THEN 3 " +
        "     WHEN (ft.param4 = :param4 OR ft.param5 = :param5) THEN 4 ELSE 5 END), " +
        "ft.updatedTimestamp DESC")
Page<Entity> queryFeedbackTemplatesWithCustomSorting(
        @Param("param1") String param1,
        @Param("param2") String param2,
        @Param("param3") String param3,
        @Param("param4") EnumA param4,
        @Param("param5") EnumB param5,
        Pageable pageable);

修复添加了虚拟条件，以确保param3，param4和param5始终包含在查询中：

AND (:param3 IS NULL OR ft.param3 IS NOT NULL)
AND (:param4 IS NULL OR ft.param4 IS NOT NULL)
AND (:param5 IS NULL OR ft.param5 IS NOT NULL)

问题似乎与弹簧数据JPA处理查询参数及其缓存行为有关。

Param3，param4和param5总是正确传递，弹簧在插入三个记录后停止识别它们。

问题：

有人遇到一个类似的问题，您能解释一下实际上可能导致这种行为的原因吗？在不使用虚拟条件的情况下，是否可以更好地解决此问题？

也许你可以做

SELECT 
   ft, 
   case when ft.param3 = :param3 then 4 else 0 end as sort3
   case when ft.param4 = :param4 then 2 else 0 end as sort4
   case when ft.param5 = :param5 then 1 else 0 end as sort5
FROM Entity ft
WHERE 
   ft.someField1.param1 = :param1 
   AND ft.param2 = :param2
ORDER BY sort3 + sort4 + sort5 DESC

Answer 1