java-自定义存储库基类QueryDslPredicateExecutor

我发现QueryDslPredicateExecutor对于减少样板非常有用,但是似乎在工作中使用了活动扳手.我现在正尝试使用自定义基类存储库来扩展JpaRepository,并且在启动时,Spring难以正确实例化存储库.

//Custom base class
@NoRepositoryBean
public interface IdAwareRepository<A, ID extends Serializable> extends JpaRepository<A, ID> {
    // ID getId(A a);
}

// Base class implementation
public class IdAwareRepositoryImpl<A, ID extends Serializable>
    extends SimpleJpaRepository<A, ID> implements IdAwareRepository<A, ID>  {
    public IdAwareRepositoryImpl(JpaEntityInformation<A, ?> entityInformation, EntityManager entityManager) {
        super(entityInformation, entityManager);
    }
}

// Individual repo
@Repository
public interface MyPojoRepository extends JpaRepository<MyPojo, Integer>, QueryDslPredicateExecutor<MyPojo> {
}

// Spring boot main application class
@EnableJpaRepositories(repositoryBaseClass = IdAwareRepositoryImpl.class)
@EntityScan(basePackageClasses = {Application.class,   Jsr310JpaConverters.class})
@EnableAutoConfiguration(exclude = {
      org.springframework.boot.autoconfigure.security.SecurityAutoConfiguration.class,
      org.springframework.boot.actuate.autoconfigure.ManagementWebSecurityAutoConfiguration.class})
@SpringBootApplication
public class Application {}

我已经尝试过有关此主题的多种变体,但是没有成功完成一切的运气.我在Spring的问题跟踪器https://jira.spring.io/browse/DATAJPA-674上遇到了类似的问题,但没有对此修复程序进行任何解释,只是重构了代码以使其更易于使用.

我收到以下错误：

Caused by:
org.springframework.data.mapping.PropertyReferenceException: No
property findAll found for type MyPojo! at
org.springframework.data.mapping.PropertyPath.(PropertyPath.java:77)
at
org.springframework.data.mapping.PropertyPath.create(PropertyPath.java:329)
at
org.springframework.data.mapping.PropertyPath.create(PropertyPath.java:309)
at
org.springframework.data.mapping.PropertyPath.from(PropertyPath.java:272)
at
org.springframework.data.mapping.PropertyPath.from(PropertyPath.java:243)
at
org.springframework.data.repository.query.parser.Part.(Part.java:76)
at
org.springframework.data.repository.query.parser.PartTree$OrPart.(PartTree.java:235)
at
org.springframework.data.repository.query.parser.PartTree$Predicate.buildTree(PartTree.java:373)
at
org.springframework.data.repository.query.parser.PartTree$Predicate.(PartTree.java:353)
at
org.springframework.data.repository.query.parser.PartTree.(PartTree.java:84)
at
org.springframework.data.jpa.repository.query.PartTreeJpaQuery.(PartTreeJpaQuery.java:62)
at
org.springframework.data.jpa.repository.query.JpaQueryLookupStrategy$CreateQueryLookupStrategy.resolveQuery(JpaQueryLookupStrategy.java:100)
at
org.springframework.data.jpa.repository.query.JpaQueryLookupStrategy$CreateIfNotFoundQueryLookupStrategy.resolveQuery(JpaQueryLookupStrategy.java:211)
at
org.springframework.data.jpa.repository.query.JpaQueryLookupStrategy$AbstractQueryLookupStrategy.resolveQuery(JpaQueryLookupStrategy.java:74)
at
org.springframework.data.repository.core.support.RepositoryFactorySupport$QueryExecutorMethodInterceptor.(RepositoryFactorySupport.java:416)
at
org.springframework.data.repository.core.support.RepositoryFactorySupport.getRepository(RepositoryFactorySupport.java:206)
at
org.springframework.data.repository.core.support.RepositoryFactoryBeanSupport.initAndReturn(RepositoryFactoryBeanSupport.java:251)
at
org.springframework.data.repository.core.support.RepositoryFactoryBeanSupport.afterPropertiesSet(RepositoryFactoryBeanSupport.java:237)
at
org.springframework.data.jpa.repository.support.JpaRepositoryFactoryBean.afterPropertiesSet(JpaRepositoryFactoryBean.java:92)
at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1637)
at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1574)

对我来说,Spring无法将自定义基类和QueryDslPredicateExecutor扩展都连接到JpaRepository

解决方法:

我通过使基础存储库扩展QueryDslMongoRepository解决了类似的问题.
您也许能够扩展类似的课程.

“No property exists found for type”… When using the QueryDslPredicateExecutor with MongoDB and Spring-Data

标签：querydsl,java,spring,spring-boot,spring-data-jpa
来源： https://codeday.me/bug/20191014/1912065.html