有没有方法使用通用的SpringDataJPA存储库实现？

Question

我正在使用100个实体（使用JHipster）设置一个新的Spring Boot API，我的问题是：鉴于我有一组存储库层方法，我希望我的所有存储库都能够调用这些方法。

我已经尝试制作所有。*RepositoryQuery接口来扩展。*RepositoryQuery（'RepositoryQuery'是我默认的自定义接口名称后缀），然后使用特定于实体的实现这些接口。*RepositoryQueryImpl类。请注意，所有的。*RepositoryQueryImpl类扩展了一个泛型实现类，名为BaseRepositoryQueryImpl。

请注意，给定正则表达式中的“.*”代表我的持久实体集中的任何实体。

下面显示了包含键类和接口的代码：

1. 我的超级界面

public interface BaseRepositoryQuery<T, PK> {
   public List<T> retrieveByCriteria(T searchCriteria);
   // other methods go here ...
}

public class BaseRepositoryQueryImpl<T, PK> implements BaseRepositoryQuery<T, PK> {
   @PersistenceContext
   private EntityManager em;

   private Class<T> businessClass;

   protected BaseRepositoryQueryImpl(Class<T> businessClass) {
     this.businessClass = businessClass;
   }

   public List<T> retrieveByCriteria(T searchCriteria) {
     // ...
   }
   // other methods go here ...
}

public interface SomeEntityRepositoryQuery extends BaseRepositoryQuery<SomeEntity, Long> {}

public class SomeEntityRepositoryQueryImpl extends BaseRepositoryQueryImpl<SomeEntity, Long> implements SomeEntityRepositoryQuery {

 public SomeEntityRepositoryQueryImpl(Class<SomeEntity> businessClass) {
   super(businessClass);
 }

 public SomeEntityRepositoryQueryImpl() {
   super(SomeEntity.class);
 }
}

@Repository
public interface SomeEntityRepository extends SomeEntityRepositoryQuery, JpaRepository<SomeEntity, Long> {
  // other methods go here...
}

@Autowired
  private SomeEntityRepository someEntityRepository;

请注意，“SomeEntity”可以是我的持久性实体集合中的任何实体（很抱歉这么明显）。此外，我已经将配置设置为：

@Configuration
@EnableJpaRepositories("<my base jpa repositories package here>")

到目前为止，我所拥有的（运行 maven）只是一个错误日志：

... bunch of lines here...
org.springframework.beans.factory.UnsatisfiedDependencyException:
 Error creating bean with name 'agentServicesImpl': Unsatisfied dependency expressed through field 'agentRepository'; 
nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'agentRepository': 
Invocation of init method failed; nested exception is java.lang.IllegalArgumentException: Failed to create query for method public abstract java.lang.Object 

br.ufpa.labes.spm.repository.interfaces.BaseRepositoryQuery.retrieveBySecondaryKey(java.lang.String)! No property retrieveBySecondaryKey found for type Agent!
        at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:596)
        at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:90)
        at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessProperties(AutowiredAnnotationBeanPostProcessor.java:374)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1411)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:592)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:515)
        at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:320)
        at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)
        at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:318)
        at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:199)
        at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:845)
        at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:877)
        at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:549)
        at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:140)
        at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:742)
        at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:389)
        at org.springframework.boot.SpringApplication.run(SpringApplication.java:311)
        at br.ufpa.labes.spm.SpmApp.main(SpmApp.java:63)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:498)
... here too ...

我怀疑该错误可能与 Spring 存储库命名有关，我已经尝试查看其他 SO 线程，但没有一个适合此上下文。

Answer 1

请签入BaseRepositoryQuery..您可能使用的字段不正确。这就是它抱怨的原因。