在 URL [jar:file:/Users/umair/.m2/repository 中定义名称为“repositorySearchController”创建 bean 时出错

Question

无法理解以下错误：

Entity:
package com.example.demo.entity;
import javax.persistence.Entity;
import javax.persistence.Table;

    @Entity
    @Table(name="lecture")
    public class EntityP1 {
            private Long id;
            private String name;
            private String last;
            public Long getId() {
                return id;
            }
            public void setId(Long id) {
                this.id = id;
            }
            public String getName() {
                return name;
            }
            public void setName(String name) {
                this.name = name;
            }
            public String getLast() {
                return last;
            }
            public void setLast(String last) {
                this.last = last;
            }
            
    }
Repository:
package com.example.demo.repo;

import org.springframework.data.repository.CrudRepository;
import org.springframework.stereotype.Repository;

import com.example.demo.entity.EntityP1;

public interface RepoP1 extends CrudRepository<EntityP1, Long> {

}

错误：

启动 ApplicationContext 时出错。要显示条件报告，请在启用“调试”的情况下重新运行您的应用程序。 2020-11-09 09:25:24.133 错误 11904 --- [main] os.boot.SpringApplication：应用程序运行失败

org.springframework.beans.factory.UnsatisfiedDependencyException：在 URL [jar:file:/Users/umair/.m2/repository/org/springframework/data/spring-data-rest 中定义名称为“repositorySearchController”的 bean 创建错误-webmvc/3.3.5.RELEASE/spring-data-rest-webmvc-3.3.5.RELEASE.jar!/org/springframework/data/rest/webmvc/RepositorySearchController.class]：通过构造函数参数0表示的不满足的依赖关系；嵌套异常是 org.springframework.beans.factory.BeanCreationException：在类路径资源 [org/springframework/data/rest/webmvc/config/RepositoryRestMvcConfiguration.class] 中定义名称为“pagedResourcesAssembler”的 bean 创建时出错：通过工厂方法进行 Bean 实例化失败;嵌套异常是 org.springframework.beans.BeanInstantiationException：无法实例化 [org.springframework.data.web.PagedResourcesAssembler]：工厂方法“pagedResourcesAssembler”抛出异常；嵌套异常是 org.springframework.beans.factory.BeanCreationException: Error created bean with name 'pageableResolver' defined in class path resource.......

Answer 1

您必须添加@EnableJpaRepositories 注释。这里有更多信息https://docs.spring.io/spring-data/data-commons/docs/1.6.1.RELEASE/reference/html/repositories.html