org.hibernate.hql.internal.ast.QuerySyntaxException：無效的路徑：JPQL 自定義查詢中的“e.id”

Question

我可以嘗試從子查詢中獲取計數，然后 e.id 顯示為無效路徑。 我的查詢很復雜，這就是我陷入困境的原因。 如何解決這個錯誤任何人都知道。

我正在將 Spring Boot 與 jpa 存儲庫一起使用。 使用 @Query 注釋寫入存儲庫的查詢。 我嘗試使用 UNION 但它不能支持 JPA、JPQL 查詢。 那么使用JPQL客戶查詢的解決方案是什么。 我在查詢中使用了構造函數，因為我想在每一行中添加 3 種類型的計數。 這就是為什么我采用了基於構造函數的查詢。

1.DTO

package com.techavidus.networkingPhoniex.responseDTO;

import lombok.*;

@ToString
@NoArgsConstructor
@AllArgsConstructor
@Builder
public @Data
class ManageGroupsDTO {

    private Long group_id;

    private String group_name;

    private Long groupTypeId;

    private String groupTypeName;

    private Long countUpcomingEvents;

    private Long countPastEvents;

    private Long countFollows;

    private String groupStates;
}

2.查詢

@Repository
public interface GroupsDao extends JpaRepository<Groups, Long> {

   @Query("SELECT new com.techavidus.networkingPhoniex.responseDTO.ManageGroupsDTO(g.group_id, " +
            "g.group_name, gt.group_type_id, gt.name, COUNT(e.id), COUNT(ee.id), COUNT(mgf.id), gs.name) " +
            "FROM Groups g LEFT JOIN MemberFollowGroups mgf LEFT JOIN mgf.groups gf ON gf.group_id = g.group_id " +
            "JOIN g.groupTypes gt LEFT JOIN g.primary_contact_member_id pm " +
            "LEFT JOIN g.secondary_contact_member_id sm LEFT JOIN g.groupStates gs " +
            "WHERE (pm.member_id=:memberId OR sm.member_id=:memberId) IN " +
            "(SELECT e FROM Events e LEFT JOIN e.eventRecurrence er LEFT JOIN e.groups eg ON eg.group_id = g.group_id WHERE e.startDate >=:todayDate) AND " +
            "(SELECT ee FROM Events ee LEFT JOIN ee.eventRecurrence er LEFT JOIN ee.groups eg ON eg.group_id = g.group_id WHERE ee.startDate <:todayDate) " +
            "GROUP BY g.group_id")
    List<ManageGroupsDTO> manageMyGroupList(LocalDate todayDate, Long memberId);
}

3.錯誤

Caused by: java.lang.IllegalArgumentException: Validation failed for query for method public abstract java.util.List com.techavidus.networkingPhoniex.dao.GroupsDao.manageMyGroupList(java.time.LocalDate,java.lang.Long)!
    at org.springframework.data.jpa.repository.query.SimpleJpaQuery.validateQuery(SimpleJpaQuery.java:93) ~[spring-data-jpa-2.2.4.RELEASE.jar:2.2.4.RELEASE]
    at org.springframework.data.jpa.repository.query.SimpleJpaQuery.<init>(SimpleJpaQuery.java:63) ~[spring-data-jpa-2.2.4.RELEASE.jar:2.2.4.RELEASE]
    at org.springframework.data.jpa.repository.query.JpaQueryFactory.fromMethodWithQueryString(JpaQueryFactory.java:76) ~[spring-data-jpa-2.2.4.RELEASE.jar:2.2.4.RELEASE]
    at org.springframework.data.jpa.repository.query.JpaQueryFactory.fromQueryAnnotation(JpaQueryFactory.java:56) ~[spring-data-jpa-2.2.4.RELEASE.jar:2.2.4.RELEASE]
    at org.springframework.data.jpa.repository.query.JpaQueryLookupStrategy$DeclaredQueryLookupStrategy.resolveQuery(JpaQueryLookupStrategy.java:140) ~[spring-data-jpa-2.2.4.RELEASE.jar:2.2.4.RELEASE]
    at org.springframework.data.jpa.repository.query.JpaQueryLookupStrategy$CreateIfNotFoundQueryLookupStrategy.resolveQuery(JpaQueryLookupStrategy.java:207) ~[spring-data-jpa-2.2.4.RELEASE.jar:2.2.4.RELEASE]
    at org.springframework.data.jpa.repository.query.JpaQueryLookupStrategy$AbstractQueryLookupStrategy.resolveQuery(JpaQueryLookupStrategy.java:78) ~[spring-data-jpa-2.2.4.RELEASE.jar:2.2.4.RELEASE]
    at org.springframework.data.repository.core.support.RepositoryFactorySupport$QueryExecutorMethodInterceptor.lookupQuery(RepositoryFactorySupport.java:574) ~[spring-data-commons-2.2.4.RELEASE.jar:2.2.4.RELEASE]
    at org.springframework.data.repository.core.support.RepositoryFactorySupport$QueryExecutorMethodInterceptor.lambda$mapMethodsToQuery$1(RepositoryFactorySupport.java:567) ~[spring-data-commons-2.2.4.RELEASE.jar:2.2.4.RELEASE]
    at java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:193) ~[na:1.8.0_241]
    at java.util.Iterator.forEachRemaining(Iterator.java:116) ~[na:1.8.0_241]
    at java.util.Collections$UnmodifiableCollection$1.forEachRemaining(Collections.java:1051) ~[na:1.8.0_241]
    at java.util.Spliterators$IteratorSpliterator.forEachRemaining(Spliterators.java:1801) ~[na:1.8.0_241]
    at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:482) ~[na:1.8.0_241]
    at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:472) ~[na:1.8.0_241]
    at java.util.stream.ReduceOps$ReduceOp.evaluateSequential(ReduceOps.java:708) ~[na:1.8.0_241]
    at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) ~[na:1.8.0_241]
    at java.util.stream.ReferencePipeline.collect(ReferencePipeline.java:499) ~[na:1.8.0_241]
    at org.springframework.data.repository.core.support.RepositoryFactorySupport$QueryExecutorMethodInterceptor.mapMethodsToQuery(RepositoryFactorySupport.java:569) ~[spring-data-commons-2.2.4.RELEASE.jar:2.2.4.RELEASE]
    at org.springframework.data.repository.core.support.RepositoryFactorySupport$QueryExecutorMethodInterceptor.lambda$new$0(RepositoryFactorySupport.java:559) ~[spring-data-commons-2.2.4.RELEASE.jar:2.2.4.RELEASE]
    at java.util.Optional.map(Optional.java:215) ~[na:1.8.0_241]
    at org.springframework.data.repository.core.support.RepositoryFactorySupport$QueryExecutorMethodInterceptor.<init>(RepositoryFactorySupport.java:559) ~[spring-data-commons-2.2.4.RELEASE.jar:2.2.4.RELEASE]
    at org.springframework.data.repository.core.support.RepositoryFactorySupport.getRepository(RepositoryFactorySupport.java:332) ~[spring-data-commons-2.2.4.RELEASE.jar:2.2.4.RELEASE]
    at org.springframework.data.repository.core.support.RepositoryFactoryBeanSupport.lambda$afterPropertiesSet$5(RepositoryFactoryBeanSupport.java:297) ~[spring-data-commons-2.2.4.RELEASE.jar:2.2.4.RELEASE]
    at org.springframework.data.util.Lazy.getNullable(Lazy.java:212) ~[spring-data-commons-2.2.4.RELEASE.jar:2.2.4.RELEASE]
    at org.springframework.data.util.Lazy.get(Lazy.java:94) ~[spring-data-commons-2.2.4.RELEASE.jar:2.2.4.RELEASE]
    at org.springframework.data.repository.core.support.RepositoryFactoryBeanSupport.afterPropertiesSet(RepositoryFactoryBeanSupport.java:300) ~[spring-data-commons-2.2.4.RELEASE.jar:2.2.4.RELEASE]
    at org.springframework.data.jpa.repository.support.JpaRepositoryFactoryBean.afterPropertiesSet(JpaRepositoryFactoryBean.java:121) ~[spring-data-jpa-2.2.4.RELEASE.jar:2.2.4.RELEASE]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1855) ~[spring-beans-5.2.3.RELEASE.jar:5.2.3.RELEASE]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1792) ~[spring-beans-5.2.3.RELEASE.jar:5.2.3.RELEASE]
    ... 42 common frames omitted
Caused by: java.lang.IllegalArgumentException: org.hibernate.hql.internal.ast.QuerySyntaxException: Invalid path: 'e.id' [SELECT new com.techavidus.networkingPhoniex.responseDTO.ManageGroupsDTO(g.group_id, g.group_name, gt.group_type_id, gt.name, COUNT(e.id), COUNT(ee.id), COUNT(mgf.id), gs.name) FROM com.techavidus.networkingPhoniex.model.Groups g LEFT JOIN com.techavidus.networkingPhoniex.model.MemberFollowGroups mgf LEFT JOIN mgf.groups gf ON gf.group_id = g.group_id JOIN g.groupTypes gt LEFT JOIN g.primary_contact_member_id pm LEFT JOIN g.secondary_contact_member_id sm LEFT JOIN g.groupStates gs WHERE (pm.member_id=:memberId OR sm.member_id=:memberId) IN (SELECT e FROM com.techavidus.networkingPhoniex.model.Events e LEFT JOIN e.eventRecurrence er LEFT JOIN e.groups eg ON eg.group_id = g.group_id WHERE e.startDate >=:todayDate) AND (SELECT ee FROM com.techavidus.networkingPhoniex.model.Events ee LEFT JOIN ee.eventRecurrence er LEFT JOIN ee.groups eg ON eg.group_id = g.group_id WHERE ee.startDate <:todayDate) GROUP BY g.group_id]
    at org.hibernate.internal.ExceptionConverterImpl.convert(ExceptionConverterImpl.java:138) ~[hibernate-core-5.4.10.Final.jar:5.4.10.Final]
    at org.hibernate.internal.ExceptionConverterImpl.convert(ExceptionConverterImpl.java:181) ~[hibernate-core-5.4.10.Final.jar:5.4.10.Final]
    at org.hibernate.internal.ExceptionConverterImpl.convert(ExceptionConverterImpl.java:188) ~[hibernate-core-5.4.10.Final.jar:5.4.10.Final]
    at org.hibernate.internal.AbstractSharedSessionContract.createQuery(AbstractSharedSessionContract.java:718) ~[hibernate-core-5.4.10.Final.jar:5.4.10.Final]
    at org.hibernate.internal.AbstractSessionImpl.createQuery(AbstractSessionImpl.java:23) ~[hibernate-core-5.4.10.Final.jar:5.4.10.Final]
    at sun.reflect.GeneratedMethodAccessor55.invoke(Unknown Source) ~[na:na]
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_241]
    at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_241]
    at org.springframework.orm.jpa.ExtendedEntityManagerCreator$ExtendedEntityManagerInvocationHandler.invoke(ExtendedEntityManagerCreator.java:368) ~[spring-orm-5.2.3.RELEASE.jar:5.2.3.RELEASE]
    at com.sun.proxy.$Proxy110.createQuery(Unknown Source) ~[na:na]
    at org.springframework.data.jpa.repository.query.SimpleJpaQuery.validateQuery(SimpleJpaQuery.java:87) ~[spring-data-jpa-2.2.4.RELEASE.jar:2.2.4.RELEASE]
    ... 71 common frames omitted
Caused by: org.hibernate.hql.internal.ast.QuerySyntaxException: Invalid path: 'e.id' [SELECT new com.techavidus.networkingPhoniex.responseDTO.ManageGroupsDTO(g.group_id, g.group_name, gt.group_type_id, gt.name, COUNT(e.id), COUNT(ee.id), COUNT(mgf.id), gs.name) FROM com.techavidus.networkingPhoniex.model.Groups g LEFT JOIN com.techavidus.networkingPhoniex.model.MemberFollowGroups mgf LEFT JOIN mgf.groups gf ON gf.group_id = g.group_id JOIN g.groupTypes gt LEFT JOIN g.primary_contact_member_id pm LEFT JOIN g.secondary_contact_member_id sm LEFT JOIN g.groupStates gs WHERE (pm.member_id=:memberId OR sm.member_id=:memberId) IN (SELECT e FROM com.techavidus.networkingPhoniex.model.Events e LEFT JOIN e.eventRecurrence er LEFT JOIN e.groups eg ON eg.group_id = g.group_id WHERE e.startDate >=:todayDate) AND (SELECT ee FROM com.techavidus.networkingPhoniex.model.Events ee LEFT JOIN ee.eventRecurrence er LEFT JOIN ee.groups eg ON eg.group_id = g.group_id WHERE ee.startDate <:todayDate) GROUP BY g.group_id]
    at org.hibernate.hql.internal.ast.QuerySyntaxException.convert(QuerySyntaxException.java:74) ~[hibernate-core-5.4.10.Final.jar:5.4.10.Final]
    at org.hibernate.hql.internal.ast.ErrorTracker.throwQueryException(ErrorTracker.java:93) ~[hibernate-core-5.4.10.Final.jar:5.4.10.Final]
    at org.hibernate.hql.internal.ast.QueryTranslatorImpl.analyze(QueryTranslatorImpl.java:278) ~[hibernate-core-5.4.10.Final.jar:5.4.10.Final]
    at org.hibernate.hql.internal.ast.QueryTranslatorImpl.doCompile(QueryTranslatorImpl.java:192) ~[hibernate-core-5.4.10.Final.jar:5.4.10.Final]
    at org.hibernate.hql.internal.ast.QueryTranslatorImpl.compile(QueryTranslatorImpl.java:144) ~[hibernate-core-5.4.10.Final.jar:5.4.10.Final]
    at org.hibernate.engine.query.spi.HQLQueryPlan.<init>(HQLQueryPlan.java:113) ~[hibernate-core-5.4.10.Final.jar:5.4.10.Final]
    at org.hibernate.engine.query.spi.HQLQueryPlan.<init>(HQLQueryPlan.java:73) ~[hibernate-core-5.4.10.Final.jar:5.4.10.Final]
    at org.hibernate.engine.query.spi.QueryPlanCache.getHQLQueryPlan(QueryPlanCache.java:155) ~[hibernate-core-5.4.10.Final.jar:5.4.10.Final]
    at org.hibernate.internal.AbstractSharedSessionContract.getQueryPlan(AbstractSharedSessionContract.java:600) ~[hibernate-core-5.4.10.Final.jar:5.4.10.Final]
    at org.hibernate.internal.AbstractSharedSessionContract.createQuery(AbstractSharedSessionContract.java:709) ~[hibernate-core-5.4.10.Final.jar:5.4.10.Final]
    ... 78 common frames omitted

Answer 1

好像你有點誤解查詢機制。

1. 不應該有任何new調用 - jpa 可以為你組裝實體並select new ...在我看來設計有問題。
2. 如果你想實現List<ManageGroupsDTO>返回類型， JpaRepository<Groups, Long>看起來是錯誤的 - 應該有類似JpaRepository<ManageGroupsDTO, Long>
3. 您的實體的@ToString注釋很可能是@ToString ，因為@Data注釋還包括.toString()方法創建 afaik。

總結一下，嘗試這樣的事情：

@Repository
public interface GroupsDao extends JpaRepository<ManageGroupsDTO, Long> {

   @Query("SELECT g.group_id, g.group_name, gt.group_type_id, gt.name, COUNT(e.id), COUNT(ee.id), COUNT(mgf.id), gs.name " +
            "FROM Groups g LEFT JOIN MemberFollowGroups mgf LEFT JOIN mgf.groups gf ON gf.group_id = g.group_id " +
            "JOIN g.groupTypes gt LEFT JOIN g.primary_contact_member_id pm " +
            "LEFT JOIN g.secondary_contact_member_id sm LEFT JOIN g.groupStates gs " +
            "WHERE (pm.member_id=:memberId OR sm.member_id=:memberId) IN " +
            "(SELECT e FROM Events e LEFT JOIN e.eventRecurrence er LEFT JOIN e.groups eg ON eg.group_id = g.group_id WHERE e.startDate >=:todayDate) AND " +
            "(SELECT ee FROM Events ee LEFT JOIN ee.eventRecurrence er LEFT JOIN ee.groups eg ON eg.group_id = g.group_id WHERE ee.startDate <:todayDate) " +
            "GROUP BY g.group_id")
    List<ManageGroupsDTO> manageMyGroupList(LocalDate todayDate, Long memberId);
}

如果您沒有弄亂結果集定位，則應該以這種方式修復。