由以下原因引起：org.springframework.data.mapping

Question

我正在研究Spring Data MongoDB 聚合框架。

错误：

org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'aggregationBasicApplication': Unsatisfied dependency expressed through field 'productRepository'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'productRepository': Invocation of init method failed; nested exception is org.springframework.data.mapping.PropertyReferenceException: No property aggregate found for type Product!

    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:596) ~[spring-beans-5.1.7.RELEASE.jar:5.1.7.RELEASE]

    at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:90) ~[spring-beans-5.1.7.RELEASE.jar:5.1.7.RELEASE]

    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessProperties(AutowiredAnnotationBeanPostProcessor.java:374) ~[spring-beans-5.1.7.RELEASE.jar:5.1.7.RELEASE]

    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1411) ~[spring-beans-5.1.7.RELEASE.jar:5.1.7.RELEASE]

    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:592) ~[spring-beans-5.1.7.RELEASE.jar:5.1.7.RELEASE]

Product.java

@Document

public class Product {

    @Id

    private final String id;

    private final String warehouse;

    private final float price;

    public Product(String id, String warehouse, float price) {

        this.id = id;

        this.warehouse = warehouse;

        this.price = price;

    }

    public String getId() {

        return id;

    }

    public String getWarehouse() {

        return warehouse;

    }

    public float getPrice() {

        return price;

    }

}

Answer 1

花了很多小时后，我没有找到解决办法，为什么薄的东西坏了。我将所有这 3 个类放在同一个包中：xpadro.spring.data.repository. 现在它工作正常。任何人都知道是什么导致了真正的问题？ProductRepository.javaProductRepositoryCustom.javaProductRepositoryImpl.java