带有spEl的IdClass上的Spring数据查询无法找到参数

时间：2018-06-03 18:56:30

标签： java spring spring-data spring-data-jpa spring-el

我试图在Spring Data JPA查询中使用简单的spEL，但是无法创建应用程序上下文bc。这个例外：

Caused by: org.springframework.expression.spel.SpelEvaluationException: EL1007E: Property or field 'id' cannot be found on null

IdClass：

@Data
@EqualsAndHashCode
@NoArgsConstructor
@AllArgsConstructor
public class NamedEntityID implements Serializable {    
    private String id;
    private Tenant tenant;    
}

简化的实体：

@MappedSuperclass
@IdClass(NamedEntityID.class)
// Lombok annotations...
public abstract class NamedEntity extends BaseEntity {

    @Id
    @Column(name = "namedId")
    private String id;

    @ManyToOne(fetch = LAZY)
    @JoinColumn(name = "tenantId")
    @NonNull
    @Id
    private Tenant tenant;
}

回购：

public interface MyNamedEntityRepository extends JpaRepository<MyNamedEntity, NamedEntityID> {

    @Query("update #{#entityName} e set e.active=FALSE where e.id = :#{#neid.id} and e.tenant = :#{#neid.tenant}")
    @Modifying(flushAutomatically = true, clearAutomatically = true)
    void deactivate(@Param("neid") @NonNull NamedEntityID neid);
}

更多stacktrace：

Caused by: org.springframework.expression.spel.SpelEvaluationException: EL1007E: Property or field 'id' cannot be found on null
    at org.springframework.expression.spel.ast.PropertyOrFieldReference.readProperty(PropertyOrFieldReference.java:213) ~[spring-expression-5.0.6.RELEASE.jar:5.0.6.RELEASE]
    at org.springframework.expression.spel.ast.PropertyOrFieldReference.getValueInternal(PropertyOrFieldReference.java:104) ~[spring-expression-5.0.6.RELEASE.jar:5.0.6.RELEASE]
    at org.springframework.expression.spel.ast.PropertyOrFieldReference.access$000(PropertyOrFieldReference.java:51) ~[spring-expression-5.0.6.RELEASE.jar:5.0.6.RELEASE]
    at org.springframework.expression.spel.ast.PropertyOrFieldReference$AccessorLValue.getValue(PropertyOrFieldReference.java:407) ~[spring-expression-5.0.6.RELEASE.jar:5.0.6.RELEASE]
    at org.springframework.expression.spel.ast.CompoundExpression.getValueInternal(CompoundExpression.java:89) ~[spring-expression-5.0.6.RELEASE.jar:5.0.6.RELEASE]
    at org.springframework.expression.spel.ast.SpelNodeImpl.getTypedValue(SpelNodeImpl.java:116) ~[spring-expression-5.0.6.RELEASE.jar:5.0.6.RELEASE]
    at org.springframework.expression.spel.standard.SpelExpression.getValue(SpelExpression.java:306) ~[spring-expression-5.0.6.RELEASE.jar:5.0.6.RELEASE]
    at org.springframework.expression.common.CompositeStringExpression.getValue(CompositeStringExpression.java:108) ~[spring-expression-5.0.6.RELEASE.jar:5.0.6.RELEASE]
    at org.springframework.expression.common.CompositeStringExpression.getValue(CompositeStringExpression.java:121) ~[spring-expression-5.0.6.RELEASE.jar:5.0.6.RELEASE]
    at org.springframework.data.jpa.repository.query.ExpressionBasedStringQuery.renderQueryIfExpressionOrReturnQuery(ExpressionBasedStringQuery.java:86) ~[spring-data-jpa-2.0.7.RELEASE.jar:2.0.7.RELEASE]
    at org.springframework.data.jpa.repository.query.ExpressionBasedStringQuery.<init>(ExpressionBasedStringQuery.java:59) ~[spring-data-jpa-2.0.7.RELEASE.jar:2.0.7.RELEASE]
    at org.springframework.data.jpa.repository.query.AbstractStringBasedJpaQuery.<init>(AbstractStringBasedJpaQuery.java:63) ~[spring-data-jpa-2.0.7.RELEASE.jar:2.0.7.RELEASE]
    at org.springframework.data.jpa.repository.query.SimpleJpaQuery.<init>(SimpleJpaQuery.java:61) ~[spring-data-jpa-2.0.7.RELEASE.jar:2.0.7.RELEASE]
    at org.springframework.data.jpa.repository.query.JpaQueryFactory.fromMethodWithQueryString(JpaQueryFactory.java:76) ~[spring-data-jpa-2.0.7.RELEASE.jar:2.0.7.RELEASE]
    at org.springframework.data.jpa.repository.query.JpaQueryFactory.fromQueryAnnotation(JpaQueryFactory.java:56) ~[spring-data-jpa-2.0.7.RELEASE.jar:2.0.7.RELEASE]
    at org.springframework.data.jpa.repository.query.JpaQueryLookupStrategy$DeclaredQueryLookupStrategy.resolveQuery(JpaQueryLookupStrategy.java:139) ~[spring-data-jpa-2.0.7.RELEASE.jar:2.0.7.RELEASE]
    at org.springframework.data.jpa.repository.query.JpaQueryLookupStrategy$CreateIfNotFoundQueryLookupStrategy.resolveQuery(JpaQueryLookupStrategy.java:206) ~[spring-data-jpa-2.0.7.RELEASE.jar:2.0.7.RELEASE]
    at org.springframework.data.jpa.repository.query.JpaQueryLookupStrategy$AbstractQueryLookupStrategy.resolveQuery(JpaQueryLookupStrategy.java:79) ~[spring-data-jpa-2.0.7.RELEASE.jar:2.0.7.RELEASE]
    at org.springframework.data.repository.core.support.RepositoryFactorySupport$QueryExecutorMethodInterceptor.lookupQuery(RepositoryFactorySupport.java:553) ~[spring-data-commons-2.0.7.RELEASE.jar:2.0.7.RELEASE]
    at org.springframework.data.repository.core.support.RepositoryFactorySupport$QueryExecutorMethodInterceptor.lambda$mapMethodsToQuery$1(RepositoryFactorySupport.java:546) ~[spring-data-commons-2.0.7.RELEASE.jar:2.0.7.RELEASE]
    at java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:193) ~[na:1.8.0_171]
    at java.util.Iterator.forEachRemaining(Iterator.java:116) ~[na:1.8.0_171]
    at java.util.Collections$UnmodifiableCollection$1.forEachRemaining(Collections.java:1049) ~[na:1.8.0_171]
    at java.util.Spliterators$IteratorSpliterator.forEachRemaining(Spliterators.java:1801) ~[na:1.8.0_171]
    at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:481) ~[na:1.8.0_171]
    at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:471) ~[na:1.8.0_171]
    at java.util.stream.ReduceOps$ReduceOp.evaluateSequential(ReduceOps.java:708) ~[na:1.8.0_171]
    at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) ~[na:1.8.0_171]
    at java.util.stream.ReferencePipeline.collect(ReferencePipeline.java:499) ~[na:1.8.0_171]
    at org.springframework.data.repository.core.support.RepositoryFactorySupport$QueryExecutorMethodInterceptor.mapMethodsToQuery(RepositoryFactorySupport.java:548) ~[spring-data-commons-2.0.7.RELEASE.jar:2.0.7.RELEASE]
    at org.springframework.data.repository.core.support.RepositoryFactorySupport$QueryExecutorMethodInterceptor.lambda$new$0(RepositoryFactorySupport.java:538) ~[spring-data-commons-2.0.7.RELEASE.jar:2.0.7.RELEASE]
    at java.util.Optional.map(Optional.java:215) ~[na:1.8.0_171]
    at org.springframework.data.repository.core.support.RepositoryFactorySupport$QueryExecutorMethodInterceptor.<init>(RepositoryFactorySupport.java:538) ~[spring-data-commons-2.0.7.RELEASE.jar:2.0.7.RELEASE]
    at org.springframework.data.repository.core.support.RepositoryFactorySupport.getRepository(RepositoryFactorySupport.java:317) ~[spring-data-commons-2.0.7.RELEASE.jar:2.0.7.RELEASE]
    at org.springframework.data.repository.core.support.RepositoryFactoryBeanSupport.lambda$afterPropertiesSet$3(RepositoryFactoryBeanSupport.java:287) ~[spring-data-commons-2.0.7.RELEASE.jar:2.0.7.RELEASE]
    at org.springframework.data.util.Lazy.getNullable(Lazy.java:141) ~[spring-data-commons-2.0.7.RELEASE.jar:2.0.7.RELEASE]
    at org.springframework.data.util.Lazy.get(Lazy.java:63) ~[spring-data-commons-2.0.7.RELEASE.jar:2.0.7.RELEASE]
    at org.springframework.data.repository.core.support.RepositoryFactoryBeanSupport.afterPropertiesSet(RepositoryFactoryBeanSupport.java:290) ~[spring-data-commons-2.0.7.RELEASE.jar:2.0.7.RELEASE]
    at org.springframework.data.jpa.repository.support.JpaRepositoryFactoryBean.afterPropertiesSet(JpaRepositoryFactoryBean.java:102) ~[spring-data-jpa-2.0.7.RELEASE.jar:2.0.7.RELEASE]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1765) ~[spring-beans-5.0.6.RELEASE.jar:5.0.6.RELEASE]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1702) ~[spring-beans-5.0.6.RELEASE.jar:5.0.6.RELEASE]
    ... 49 common frames omitted

具有更简单类型的普通存储库已经可用。有许多问题/问题提到，你必须使用调试symobls或更新的-parameters - 标志进行编译 - 如果你不使用@Param，你只需要它，但我仍然添加它。不会改变一件事。

我单步执行Spring Framework代码，抛出Exception。 ＆＃34; neid＆＃34;不在包含已知标识符的地图中。

1 个答案:

答案 0 :(得分：-2)

也许使用 - ＆＃34; namedId＆＃34;在查询中代替id？

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