Hibernate 无法使用 Postgres 在 jpql 中定义 null 参数

Question

我在 Spring 数据存储库中做了一些方法。 这个想法是使每个参数都是可选的（或可为空的）。

 @Query("SELECT lp FROM LicensePlatformEntity lp WHERE " +
        "(:ownerId is null or lp.ownerCompanyId = :ownerId) AND " +
        "(:assignedCompanyId is null or lp.assignedCompanyId = :assignedCompanyId) AND " +
        "(:assignedUserId is null or lp.assignedUser.id = :assignedUserId) AND " +
        "(:isAssigned is null or lp.assignedCompanyAcceptedLicense = :isAssigned)")
List<LicensePlatformEntity> findAllByFollowing(UUID ownerId, UUID assignedCompanyId, UUID assignedUserId, Boolean isAssigned);

它在 memory 数据库中的 H2 上运行良好，但 PostgreSQL 抛出异常，并声称它无法定义参数 %1 或任何其他与 null 值一起传递的参数。 下一步是应用分页，所以目前它可以与CriteriaBuilder一起使用，但它没有好的分页解决方案，不是基于偏移限制。

如何使用开箱即用的分页解决方案使可选参数搜索适合 PostgreSQL，该解决方案不是冗长的可扩展且基于 Spring 堆栈？ 感谢任何帮助！

有一些尝试将参数显式转换为 hibernate 类型，使用完整的类型引用，看起来很糟糕。 而且还破坏了 Intellij 查询处理，这不是没用的东西。

这个JPA 查询来处理 NULL 参数值没有任何有用的信息。 在索取副本之前请三思。

Error starting ApplicationContext. To display the conditions report re-run your application with 'debug' enabled.
21-April-01 13:16:14:243  ERROR restartedMain o.s.b.SpringApplication:856 - Application run failed
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'companiesApiImpl': Invocation of init method failed; nested exception is org.springframework.dao.InvalidDataAccessResourceUsageException: could not extract ResultSet; SQL [n/a]; nested exception is org.hibernate.exception.SQLGrammarException: could not extract ResultSet
    at org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor.postProcessBeforeInitialization(InitDestroyAnnotationBeanPostProcessor.java:160)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyBeanPostProcessorsBeforeInitialization(AbstractAutowireCapableBeanFactory.java:429)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1780)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:609)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:531)
    at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:335)
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234)
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:333)
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:208)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:944)
    at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:923)
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:588)
    at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:144)
    at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:767)
    at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:759)
    at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:426)
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:326)
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:1311)
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:1300)
    at it.agroadvisor.licensing.Application.main(Application.java:16)
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.base/java.lang.reflect.Method.invoke(Method.java:566)
    at org.springframework.boot.devtools.restart.RestartLauncher.run(RestartLauncher.java:49)
Caused by: org.springframework.dao.InvalidDataAccessResourceUsageException: could not extract ResultSet; SQL [n/a]; nested exception is org.hibernate.exception.SQLGrammarException: could not extract ResultSet
    at org.springframework.orm.jpa.vendor.HibernateJpaDialect.convertHibernateAccessException(HibernateJpaDialect.java:259)
    at org.springframework.orm.jpa.vendor.HibernateJpaDialect.translateExceptionIfPossible(HibernateJpaDialect.java:233)
    at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.translateExceptionIfPossible(AbstractEntityManagerFactoryBean.java:551)
    at org.springframework.dao.support.ChainedPersistenceExceptionTranslator.translateExceptionIfPossible(ChainedPersistenceExceptionTranslator.java:61)
    at org.springframework.dao.support.DataAccessUtils.translateIfNecessary(DataAccessUtils.java:242)
    at org.springframework.dao.support.PersistenceExceptionTranslationInterceptor.invoke(PersistenceExceptionTranslationInterceptor.java:152)
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)
    at org.springframework.data.jpa.repository.support.CrudMethodMetadataPostProcessor$CrudMethodMetadataPopulatingMethodInterceptor.invoke(CrudMethodMetadataPostProcessor.java:145)
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)
    at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:97)
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)
    at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:215)
    at com.sun.proxy.$Proxy107.findAllByFollowing(Unknown Source)
    at it.agroadvisor.licensing.web.input.CompaniesApiImpl.ass(CompaniesApiImpl.java:93)
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.base/java.lang.reflect.Method.invoke(Method.java:566)
    at org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor$LifecycleElement.invoke(InitDestroyAnnotationBeanPostProcessor.java:389)
    at org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor$LifecycleMetadata.invokeInitMethods(InitDestroyAnnotationBeanPostProcessor.java:333)
    at org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor.postProcessBeforeInitialization(InitDestroyAnnotationBeanPostProcessor.java:157)
    ... 24 common frames omitted
Caused by: org.hibernate.exception.SQLGrammarException: could not extract ResultSet
    at org.hibernate.exception.internal.SQLStateConversionDelegate.convert(SQLStateConversionDelegate.java:103)
    at org.hibernate.exception.internal.StandardSQLExceptionConverter.convert(StandardSQLExceptionConverter.java:42)
    at org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:113)
    at org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:99)
    at org.hibernate.engine.jdbc.internal.ResultSetReturnImpl.extract(ResultSetReturnImpl.java:67)
    at org.hibernate.loader.Loader.getResultSet(Loader.java:2304)
    at org.hibernate.loader.Loader.executeQueryStatement(Loader.java:2057)
    at org.hibernate.loader.Loader.executeQueryStatement(Loader.java:2019)
    at org.hibernate.loader.Loader.doQuery(Loader.java:948)
    at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:349)
    at org.hibernate.loader.Loader.doList(Loader.java:2850)
    at org.hibernate.loader.Loader.doList(Loader.java:2832)
    at org.hibernate.loader.Loader.listIgnoreQueryCache(Loader.java:2664)
    at org.hibernate.loader.Loader.list(Loader.java:2659)
    at org.hibernate.loader.hql.QueryLoader.list(QueryLoader.java:506)
    at org.hibernate.hql.internal.ast.QueryTranslatorImpl.list(QueryTranslatorImpl.java:400)
    at org.hibernate.engine.query.spi.HQLQueryPlan.performList(HQLQueryPlan.java:219)
    at org.hibernate.internal.SessionImpl.list(SessionImpl.java:1414)
    at org.hibernate.query.internal.AbstractProducedQuery.doList(AbstractProducedQuery.java:1625)
    at org.hibernate.query.internal.AbstractProducedQuery.list(AbstractProducedQuery.java:1593)
    at org.hibernate.query.Query.getResultList(Query.java:165)
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.base/java.lang.reflect.Method.invoke(Method.java:566)
    at org.springframework.orm.jpa.SharedEntityManagerCreator$DeferredQueryInvocationHandler.invoke(SharedEntityManagerCreator.java:406)
    at com.sun.proxy.$Proxy114.getResultList(Unknown Source)
    at org.springframework.data.jpa.repository.query.JpaQueryExecution$CollectionExecution.doExecute(JpaQueryExecution.java:126)
    at org.springframework.data.jpa.repository.query.JpaQueryExecution.execute(JpaQueryExecution.java:88)
    at org.springframework.data.jpa.repository.query.AbstractJpaQuery.doExecute(AbstractJpaQuery.java:155)
    at org.springframework.data.jpa.repository.query.AbstractJpaQuery.execute(AbstractJpaQuery.java:143)
    at org.springframework.data.repository.core.support.RepositoryMethodInvoker.doInvoke(RepositoryMethodInvoker.java:137)
    at org.springframework.data.repository.core.support.RepositoryMethodInvoker.invoke(RepositoryMethodInvoker.java:121)
    at org.springframework.data.repository.core.support.QueryExecutorMethodInterceptor.doInvoke(QueryExecutorMethodInterceptor.java:152)
    at org.springframework.data.repository.core.support.QueryExecutorMethodInterceptor.invoke(QueryExecutorMethodInterceptor.java:131)
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)
    at org.springframework.transaction.interceptor.TransactionInterceptor$1.proceedWithInvocation(TransactionInterceptor.java:123)
    at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:388)
    at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:119)
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)
    at org.springframework.dao.support.PersistenceExceptionTranslationInterceptor.invoke(PersistenceExceptionTranslationInterceptor.java:137)
    ... 39 common frames omitted
Caused by: org.postgresql.util.PSQLException: ОШИБКА: не удалось определить тип данных параметра $1
    at org.postgresql.core.v3.QueryExecutorImpl.receiveErrorResponse(QueryExecutorImpl.java:2497)
    at org.postgresql.core.v3.QueryExecutorImpl.processResults(QueryExecutorImpl.java:2233)
    at org.postgresql.core.v3.QueryExecutorImpl.execute(QueryExecutorImpl.java:310)
    at org.postgresql.jdbc.PgStatement.executeInternal(PgStatement.java:446)
    at org.postgresql.jdbc.PgStatement.execute(PgStatement.java:370)
    at org.postgresql.jdbc.PgPreparedStatement.executeWithFlags(PgPreparedStatement.java:149)
    at org.postgresql.jdbc.PgPreparedStatement.executeQuery(PgPreparedStatement.java:108)
    at com.zaxxer.hikari.pool.ProxyPreparedStatement.executeQuery(ProxyPreparedStatement.java:52)
    at com.zaxxer.hikari.pool.HikariProxyPreparedStatement.executeQuery(HikariProxyPreparedStatement.java)
    at org.hibernate.engine.jdbc.internal.ResultSetReturnImpl.extract(ResultSetReturnImpl.java:57)
    ... 75 common frames omitted

Answer 1

您可以通过两种方式做到这一点：

1. 考虑所有极端情况，编写 16 种可能的方法。
2. 使用规范如：

你可以参考我的规范（我知道这是完全不同的）

    public static Specification<Post> search(String keyword) {
        return ((root, criteriaQuery, criteriaBuilder) -> {
            criteriaQuery.distinct(true);
            if (keyword == null) {
                return null;
            }
            return criteriaBuilder.or(
                    criteriaBuilder.like(root.get("title"), "%" + keyword + "%"),
                    criteriaBuilder.like(root.get("content"), "%" + keyword + "%"),
                    criteriaBuilder.like(root.get("excerpt"), "%" + keyword + "%"),
                    criteriaBuilder.equal(root.join("author").get("name"), keyword),
                    criteriaBuilder.equal(root.join("tags").get("name"), keyword.trim().toUpperCase())
            );
        });
    }

     public Page<Post> findAllPostWithFilters(int pageNo, int pageSize, String sortField, String order,
                                             String keyword, List<Long> tids, List<Long> uids,
                                             Date starDate, Date endDate) {
        return postRepository.findAll(PostSpecification.search(keyword)
                        .and(PostSpecification.filterPostByTagIdList(tids))
                        .and(PostSpecification.filterPostByAuthorIdList(uids))
                        .and(PostSpecification.filterPostAfter(starDate))
                        .and(PostSpecification.filterPostBefore(endDate)),
                PostSpecification.getPageable(pageNo, pageSize, sortField, order));
    }