Spring Data JPA 'jpaMappingContext' 错误，IllegalStateException:预期能够解析类型但得到 null [英] Spring Data JPA 'jpaMappingContext' error, IllegalStateException: Expected to be able to resolve a type but got null

问题描述

我正在使用 Spring Data JPA 5.0.4 并收到此错误:

I am using Spring Data JPA 5.0.4 and am getting this error:

创建名为myRepository"的 bean 时出错:无法解析设置 bean 属性时引用 bean 'jpaMappingContext''映射上下文';嵌套异常是org.springframework.beans.factory.BeanCreationException:错误创建名为jpaMappingContext"的 bean:调用 init 方法失败；嵌套异常是 java.lang.IllegalStateException: Expected能够解析类型但得到空值！这通常源于实现原始 Map 或 Collection 接口的类型！在...

Error creating bean with name 'myRepository': Cannot resolve reference to bean 'jpaMappingContext' while setting bean property 'mappingContext'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'jpaMappingContext': Invocation of init method failed; nested exception is java.lang.IllegalStateException: Expected to be able to resolve a type but got null! This usually stems from types implementing raw Map or Collection interfaces! at...

这是我的 myRepository bean:

This is my myRepository bean:

@Repository
public interface MyRepository extends CrudRepository<MyEvent, Long> {

    List<MyEvent> findAll();

    MyEvent save(MyEvent persisted);

    Optional<MyEvent> findById(Long id);

    Optional<MyEvent> findByMyEventId(long id);

    List<MyEvent> findByCurrentActivityTypeCd(BigDecimal id);

    List<MyEvent> findByCity(String city);
}

这里是我如何扫描 applicationContext.xml 中的 bean:

Here is how I scan the beans in applicationContext.xml:

   <context:annotation-config />
   <context:spring-configured />
   <aop:aspectj-autoproxy />

   <tx:annotation-driven />

   <context:component-scan base-package="com.my.service, com.my.repository" />

推荐答案

我遇到了同样的问题，这是因为我的实体具有 Map 类型的属性.只需将其更改为 HashMap 或类似的.

I had the same issue and it was because my entity has an attribute of type Map. Just change it for HashMap or similar.

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