spring-data-rest，所有存储库的通用自定义方法

【问题标题】：spring-data-rest, common custom method for all repositoriesspring-data-rest，所有存储库的通用自定义方法
【发布时间】：2016-06-25 03:30:10
【问题描述】：

我尝试为我所有的 spring-data-rest 存储库创建一个基本功能，但有一个持续存在的问题。

spring的版本是4.2.4，我有UserRepository，绑定到相关的User实体，还有一个UserController管理多repo相关的逻辑。

我想将自定义方法 sharedCustomMethod 添加到我的所有存储库，包括 UserRepository。

我有 BaseRepository 相关的类和接口：

@NoRepositoryBean
public interface BaseRepository <T, E extends Serializable> 
extends PagingAndSortingRepository<T, E>, BaseRepositoryCustom<T, Serializable> {

    @Override
    @Query("select e from #{#entityName} e where e.enabled=1 and e.id=?1")
    T findOne(E primaryKey);

    @Override
    @Query("select e from #{#entityName} e where e.enabled=1")
    Iterable<T> findAll(); 

    @Override
    @Query("select count(*) from #{#entityName} e where e.enabled=1")
    long count();

    @Override
    @Query("update #{#entityName} e set e.enabled=0 where e.id=?1")
    @Modifying
    void delete(E primaryKey);
}

自定义界面：

package com.eolcum.repository.base;

import java.io.Serializable;

import org.springframework.data.repository.NoRepositoryBean;

@NoRepositoryBean
public interface BaseRepositoryCustom <T, E extends Serializable> {

    void sharedCustomMethod(E id);
}

自定义实现：

package com.eolcum.repository.base;

import java.io.Serializable;

import javax.persistence.EntityManager;

import org.springframework.data.jpa.repository.support.SimpleJpaRepository;
import org.springframework.transaction.annotation.Transactional;

public class BaseRepositoryImpl<T, ID extends Serializable> 
    extends SimpleJpaRepository<T, Serializable> 
    implements BaseRepository<T, Serializable> {

    private final EntityManager entityManager;

    public BaseRepositoryImpl(Class<T> domainClass, EntityManager em) {
        super(domainClass, em);
        this.entityManager = em;
    }

    @Override
    @Transactional
    public void sharedCustomMethod(Serializable id) {
        System.out.println("done!");

    }

}

BaseRepo 工厂 Bean：

package com.eolcum.repository.base;

import org.springframework.data.jpa.repository.JpaRepository;
import org.springframework.data.jpa.repository.support.JpaRepositoryFactory;
import org.springframework.data.jpa.repository.support.JpaRepositoryFactoryBean;
import org.springframework.data.jpa.repository.support.SimpleJpaRepository;
import org.springframework.data.repository.core.RepositoryInformation;
import org.springframework.data.repository.core.RepositoryMetadata;
import org.springframework.data.repository.core.support.RepositoryFactorySupport;

import javax.persistence.EntityManager;
import java.io.Serializable;

public class BaseRepositoryFactoryBean<R extends JpaRepository<T, I>, T,
        I extends Serializable> extends JpaRepositoryFactoryBean<R, T, I> {

    @Override
    protected RepositoryFactorySupport createRepositoryFactory(EntityManager em) {
        return new BaseRepositoryFactory(em);
    }

    private static class BaseRepositoryFactory<T, I extends Serializable>
            extends JpaRepositoryFactory {

        private final EntityManager em;

        public BaseRepositoryFactory(EntityManager em) {
            super(em);
            this.em = em;
        }

        @Override
        protected SimpleJpaRepository<T, Serializable> getTargetRepository(RepositoryInformation information,
                EntityManager entityManager) {
            return new BaseRepositoryImpl<T, I>((Class<T>) information.getDomainType(), em);
        }

        @Override
        protected Class<?> getRepositoryBaseClass(RepositoryMetadata metadata) {
            return BaseRepositoryImpl.class;
        }
    }
}

持久性上下文： 包 com.eolcum.repository.base;

import org.springframework.context.annotation.Configuration;
import org.springframework.data.jpa.repository.config.EnableJpaRepositories;
import org.springframework.transaction.annotation.EnableTransactionManagement;

import com.eolcum.controller.UserController;

@Configuration
@EnableJpaRepositories(basePackages = {"com.eolcum.repository.base"}, 
        repositoryFactoryBeanClass = BaseRepositoryFactoryBean.class )
@EnableTransactionManagement
public class PersistenceContext {

}

当我尝试使用 spring-boot 运行应用程序时，我收到以下错误消息：

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'userController': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private com.eolcum.repository.UserRepository com.eolcum.controller.UserController.userRepository; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'userRepository': Invocation of init method failed; nested exception is org.springframework.data.mapping.PropertyReferenceException: No property sharedCustomMethod found for type User!
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:334) ~[spring-beans-4.2.4.RELEASE.jar:4.2.4.RELEASE]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1214) ~[spring-beans-4.2.4.RELEASE.jar:4.2.4.RELEASE]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:543) ~[spring-beans-4.2.4.RELEASE.jar:4.2.4.RELEASE]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:482) ~[spring-beans-4.2.4.RELEASE.jar:4.2.4.RELEASE]
    at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306) ~[spring-beans-4.2.4.RELEASE.jar:4.2.4.RELEASE]
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230) ~[spring-beans-4.2.4.RELEASE.jar:4.2.4.RELEASE]
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302) ~[spring-beans-4.2.4.RELEASE.jar:4.2.4.RELEASE]
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197) ~[spring-beans-4.2.4.RELEASE.jar:4.2.4.RELEASE]
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:772) ~[spring-beans-4.2.4.RELEASE.jar:4.2.4.RELEASE]
    at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:839) ~[spring-context-4.2.4.RELEASE.jar:4.2.4.RELEASE]
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:538) ~[spring-context-4.2.4.RELEASE.jar:4.2.4.RELEASE]
    at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.refresh(EmbeddedWebApplicationContext.java:118) ~[spring-boot-1.3.2.RELEASE.jar:1.3.2.RELEASE]
    at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:766) [spring-boot-1.3.2.RELEASE.jar:1.3.2.RELEASE]
    at org.springframework.boot.SpringApplication.createAndRefreshContext(SpringApplication.java:361) [spring-boot-1.3.2.RELEASE.jar:1.3.2.RELEASE]
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:307) [spring-boot-1.3.2.RELEASE.jar:1.3.2.RELEASE]
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:1191) [spring-boot-1.3.2.RELEASE.jar:1.3.2.RELEASE]
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:1180) [spring-boot-1.3.2.RELEASE.jar:1.3.2.RELEASE]
    at com.eolcum.Application.main(Application.java:19) [classes/:na]
Caused by: org.springframework.beans.factory.BeanCreationException: Could not autowire field: private com.eolcum.repository.UserRepository com.eolcum.controller.UserController.userRepository; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'userRepository': Invocation of init method failed; nested exception is org.springframework.data.mapping.PropertyReferenceException: No property sharedCustomMethod found for type User!
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:573) ~[spring-beans-4.2.4.RELEASE.jar:4.2.4.RELEASE]
    at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:88) ~[spring-beans-4.2.4.RELEASE.jar:4.2.4.RELEASE]
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:331) ~[spring-beans-4.2.4.RELEASE.jar:4.2.4.RELEASE]
    ... 17 common frames omitted
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'userRepository': Invocation of init method failed; nested exception is org.springframework.data.mapping.PropertyReferenceException: No property sharedCustomMethod found for type User!
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1578) ~[spring-beans-4.2.4.RELEASE.jar:4.2.4.RELEASE]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:545) ~[spring-beans-4.2.4.RELEASE.jar:4.2.4.RELEASE]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:482) ~[spring-beans-4.2.4.RELEASE.jar:4.2.4.RELEASE]
    at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306) ~[spring-beans-4.2.4.RELEASE.jar:4.2.4.RELEASE]
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230) ~[spring-beans-4.2.4.RELEASE.jar:4.2.4.RELEASE]
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302) ~[spring-beans-4.2.4.RELEASE.jar:4.2.4.RELEASE]
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197) ~[spring-beans-4.2.4.RELEASE.jar:4.2.4.RELEASE]
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.findAutowireCandidates(DefaultListableBeanFactory.java:1192) ~[spring-beans-4.2.4.RELEASE.jar:4.2.4.RELEASE]
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1116) ~[spring-beans-4.2.4.RELEASE.jar:4.2.4.RELEASE]
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1014) ~[spring-beans-4.2.4.RELEASE.jar:4.2.4.RELEASE]
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:545) ~[spring-beans-4.2.4.RELEASE.jar:4.2.4.RELEASE]
    ... 19 common frames omitted
Caused by: org.springframework.data.mapping.PropertyReferenceException: No property sharedCustomMethod found for type User!
    at org.springframework.data.mapping.PropertyPath.<init>(PropertyPath.java:75) ~[spring-data-commons-1.11.2.RELEASE.jar:na]
    at org.springframework.data.mapping.PropertyPath.create(PropertyPath.java:327) ~[spring-data-commons-1.11.2.RELEASE.jar:na]
    at org.springframework.data.mapping.PropertyPath.create(PropertyPath.java:307) ~[spring-data-commons-1.11.2.RELEASE.jar:na]
    at org.springframework.data.mapping.PropertyPath.from(PropertyPath.java:270) ~[spring-data-commons-1.11.2.RELEASE.jar:na]
    at org.springframework.data.mapping.PropertyPath.from(PropertyPath.java:241) ~[spring-data-commons-1.11.2.RELEASE.jar:na]
    at org.springframework.data.repository.query.parser.Part.<init>(Part.java:76) ~[spring-data-commons-1.11.2.RELEASE.jar:na]
    at org.springframework.data.repository.query.parser.PartTree$OrPart.<init>(PartTree.java:235) ~[spring-data-commons-1.11.2.RELEASE.jar:na]
    at org.springframework.data.repository.query.parser.PartTree$Predicate.buildTree(PartTree.java:373) ~[spring-data-commons-1.11.2.RELEASE.jar:na]
    at org.springframework.data.repository.query.parser.PartTree$Predicate.<init>(PartTree.java:353) ~[spring-data-commons-1.11.2.RELEASE.jar:na]
    at org.springframework.data.repository.query.parser.PartTree.<init>(PartTree.java:84) ~[spring-data-commons-1.11.2.RELEASE.jar:na]
    at org.springframework.data.jpa.repository.query.PartTreeJpaQuery.<init>(PartTreeJpaQuery.java:61) ~[spring-data-jpa-1.9.2.RELEASE.jar:na]
    at org.springframework.data.jpa.repository.query.JpaQueryLookupStrategy$CreateQueryLookupStrategy.resolveQuery(JpaQueryLookupStrategy.java:95) ~[spring-data-jpa-1.9.2.RELEASE.jar:na]
    at org.springframework.data.jpa.repository.query.JpaQueryLookupStrategy$CreateIfNotFoundQueryLookupStrategy.resolveQuery(JpaQueryLookupStrategy.java:206) ~[spring-data-jpa-1.9.2.RELEASE.jar:na]
    at org.springframework.data.jpa.repository.query.JpaQueryLookupStrategy$AbstractQueryLookupStrategy.resolveQuery(JpaQueryLookupStrategy.java:73) ~[spring-data-jpa-1.9.2.RELEASE.jar:na]
    at org.springframework.data.repository.core.support.RepositoryFactorySupport$QueryExecutorMethodInterceptor.<init>(RepositoryFactorySupport.java:416) ~[spring-data-commons-1.11.2.RELEASE.jar:na]
    at org.springframework.data.repository.core.support.RepositoryFactorySupport.getRepository(RepositoryFactorySupport.java:206) ~[spring-data-commons-1.11.2.RELEASE.jar:na]
    at org.springframework.data.repository.core.support.RepositoryFactoryBeanSupport.initAndReturn(RepositoryFactoryBeanSupport.java:251) ~[spring-data-commons-1.11.2.RELEASE.jar:na]
    at org.springframework.data.repository.core.support.RepositoryFactoryBeanSupport.afterPropertiesSet(RepositoryFactoryBeanSupport.java:237) ~[spring-data-commons-1.11.2.RELEASE.jar:na]
    at org.springframework.data.jpa.repository.support.JpaRepositoryFactoryBean.afterPropertiesSet(JpaRepositoryFactoryBean.java:92) ~[spring-data-jpa-1.9.2.RELEASE.jar:na]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1637) ~[spring-beans-4.2.4.RELEASE.jar:4.2.4.RELEASE]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1574) ~[spring-beans-4.2.4.RELEASE.jar:4.2.4.RELEASE]
    ... 29 common frames omitted

提前感谢您的帮助。

【问题讨论】：

    标签： java spring rest spring-data-jpa spring-data-rest


    【解决方案1】：

    1. 使用 @NoRepository 注释创建基本接口，如下所示：

      @NoRepositoryBean
public interface BaseRepository<T extends BaseModel, ID extends Serializable>
        extends PagingAndSortingRepository<T, ID> {

    T checkAsDeleted(T t);

}

    2. 创建基类并扩展您的基接口

      @Transactional(readOnly = false)
public class BaseRepositoryImpl<T extends BaseModel, ID extends Serializable>
    extends SimpleJpaRepository<T, ID>
    implements BaseRepository<T, ID> {

    public BaseRepositoryImpl(JpaEntityInformation<T, ?> entityInformation, EntityManager entityManager) {
        super(entityInformation, entityManager);
    }

    public BaseRepositoryImpl(Class<T> domainClass, EntityManager em) {
        super(domainClass, em);
    }

    @Override
    public T checkAsDeleted(T t) {
        t.setIsDeleted(true);
        return this.save(t);
    }

    @Override
    public <S extends T> S save(S entity) {
        Date now = new Date();
        if (entity.getId() == null) {
            entity.setCreationDate(now);
        }
        entity.setModifiedDate(now);
        return super.save(entity);
    }
}

    3. 使用基本接口扩展您的存储库接口

      @Repository
public interface QuestionRepository extends BaseRepository<Question, Long> {

    List<Question> findByisDeleted(boolean isDeleted);

    List<Question> findAll();

}

    4. 让你的应用知道这个基类

      @SpringBootApplication
@EnableJpaRepositories(repositoryBaseClass = BaseRepositoryImpl.class)
@EnableSpringDataWebSupport
public class Application {

    public static void main(String[] args) {
        SpringApplication.run(Application.class, args);
    }
}

    现在，您到处都有 checkAsDeleted() 方法！

    所有代码都在实际项目中工作

    【讨论】：

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