无法找到Spring User，Spring Data Java的UserDAO类型的Bean-Java 学习之路

我能错过什么？

描述：com.solopov.hillel.uquiz.service.UserService中的字段userDAO需要一个无法找到的类型为“com.solopov.hillel.uquiz.dao.UserDAO”的bean . 操作：考虑在配置中定义类型为“com.solopov.hillel.uquiz.dao.UserDAO”的bean .

主要课程：

package com.solopov.hillel.uquiz;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;

@SpringBootApplication
public class UquizApplication {

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

DAO类：

package com.solopov.hillel.uquiz.dao;

        import com.solopov.hillel.uquiz.model.User;
        import org.springframework.data.repository.CrudRepository;
        import org.springframework.stereotype.Repository;

@Repository
public interface UserDAO extends CrudRepository<User,Integer> {
    User findUserByLoginLike(String login);
}

使用DAO的服务类：

@Service
public class UserService {
    @Autowired
    private UserDAO userDAO;


    public boolean addAccount(User user) {
        if (!isRegistered(user)) {
            userDAO.save(user);
            return true;
        }
        return false;
    }
}

UPD：将注释@EnableJpaRepositories添加到主类后，我收到一个错误：

启动ApplicationContext时出错 . 要显示条件报告，请在启用“debug”的情况下重新运行应用程序 . 2018-07-19 00:26:08.425 ERROR 6810 --- [main] osboot.SpringApplication：应用程序运行失败org.springframework.beans.factory.UnsatisfiedDependencyException：创建名为'questionController'的bean时出错：通过字段表示不满意的依赖关系'answerDAO';嵌套异常是org.springframework.beans.factory.BeanCreationException：创建名为'answerDAO'的bean时出错：init方法的调用失败;嵌套异常是java.lang.IllegalArgumentException：不是托管类型：接口com.solopov.hillel.uquiz.dao.AnswerDAO at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor $ AutowiredFieldElement.inject（AutowiredAnnotationBeanPostProcessor.java:587)~ [spring-beans-5.0.7.RELEASE.jar：5.0.7.RELEASE]在org.springframework.beans.factory.annotation.InjectionMetadata.inject（InjectionMetadata.java:91）〜[spring-beans-5.0.7 . RELEASE.jar：5.0.7.RELEASE]在org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues（AutowiredAnnotationBeanPostProcessor.java：373）〜[spring-beans-5.0.7.RELEASE.jar：5.0.7.RELEASE在Org.springframework.beans.factory的org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean（AbstractAutowireCapableBeanFactory.java:1350）〜[spring-beans-5.0.7.RELEASE.jar：5.0.7.RELEASE] .support.AbstractAutowireCapableBeanFactory.doCreateBean（AbstractAutowireCapableBeanFacto ry.java:580)~ [spring-beans-5.0.7.RELEASE.jar：5.0.7.RELEASE] org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean（AbstractAutowireCapableBeanFactory.java:503)~ [spring -beans-5.0.7.RELEASE.jar：5.0.7.RELEASE] at org.springframework.beans.factory.support.AbstractBeanFactory.lambda $ doGetBean $ 0（AbstractBeanFactory.java:317)~ [spring-beans-5.0.7 .RELEASE.jar：5.0.7.RELEASE] at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton（DefaultSingletonBeanRegistry.java:222)~ [spring-beans-5.0.7.RELEASE.jar：5.0.7 . 发布在org.springframework.beans的org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean（AbstractBeanFactory.java:315）〜[spring-beans-5.0.7.RELEASE.jar：5.0.7.RELEASE] . orn.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons上的factory.support.AbstractBeanFactory.getBean（AbstractBeanFactory.java:199）〜[spring-beans-5.0.7.RELEASE.jar：5.0.7.RELEASE]（DefaultListableBea nFactory.java:760）〜[spring-beans-5.0.7.RELEASE.jar：5.0.7.RELEASE] org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization（AbstractApplicationContext.java:869）〜[spring-context -5.0.7.RELEASE.jar：5.0.7.RELEASE] at org.springframework.context.support.AbstractApplicationContext.refresh（AbstractApplicationContext.java:550)~ [spring-context-5.0.7.RELEASE.jar：5.0 . 7.RELEASE] org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh（ServletWebServerApplicationContext.java:140）〜[spring-boot-2.0.3.RELEASE.jar：2.0.3.RELEASE] at org . springframework.boot.SpringApplication.refresh（SpringApplication.java:759）[spring-boot-2.0.3.RELEASE.jar：2.0.3.RELEASE] org.springframework.boot.SpringApplication.refreshContext（SpringApplication.java:395） org.springframework.boot.SpringApplication.run中的[spring-boot-2.0.3.RELEASE.jar：2.0.3.RELEASE]（SpringApplication.java:327）[spring-boot-2.0.3.RELEASE.jar：2.0 .3.RELEASE]在org.springfram org.springframework.boot.SpringApplication.run中的ework.boot.SpringApplication.run（SpringApplication.java:1255）[spring-boot-2.0.3.RELEASE.jar：2.0.3.RELEASE]（SpringApplication.java:1243） [spring-boot-2.0.3.RELEASE.jar：2.0.3.RELEASE] at com.solopov.hillel.uquiz.UquizApplication.main（UquizApplication.java:12）[classes /：na]引起：org.springframework .beans.factory.BeanCreationException：创建名为'answerDAO'的bean时出错：init方法的调用失败;嵌套异常是java.lang.IllegalArgumentException：不是托管类型：接口com.solopov.hillel.uquiz.dao.AnswerDAO at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean（AbstractAutowireCapableBeanFactory.java:1708)~ [spring -beans-5.0.7.RELEASE.jar：5.0.7.RELEASE]在org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean（AbstractAutowireCapableBeanFactory.java:581）〜[spring-beans-5.0.7.RELEASE . jar：5.0.7.RELEASE]在org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean（AbstractAutowireCapableBeanFactory.java:503）〜[spring-beans-5.0.7.RELEASE.jar：5.0.7.RELEASE] at at org.springframework.beans.factory.support.AbstractBeanFactory.lambda $ doGetBean $ 0（AbstractBeanFactory.java:317）〜[spring-beans-5.0.7.RELEASE.jar：5.0.7.RELEASE] org.springframework.beans . factory.support.DefaultSingletonBeanRegistry.getSingleton（DefaultSingletonBeanRegistry.java:222)~ [spring-beans-5.0.7.RELEASE .jar：5.0.7.RELEASE]在org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean（AbstractBeanFactory.java:315）〜[spring-beans-5.0.7.RELEASE.jar：5.0.7.RELEASE]在org.springframework.beans.factory.support.AbstractBeanFactory.getBean（AbstractBeanFactory.java:199）〜[spring-beans-5.0.7.RELEASE.jar：5.0.7.RELEASE] org.springframework.beans.factory . org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency（DefaultListableBeanFactory.java）中的config.DependencyDescriptor.resolveCandidate（DependencyDescriptor.java:251）〜[spring-beans-5.0.7.RELEASE.jar：5.0.7.RELEASE] ：1138）〜[spring-beans-5.0.7.RELEASE.jar：5.0.7.RELEASE] org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency（DefaultListableBeanFactory.java:1065)~ [spring-beans- 5.0.7.RELEASE.jar：5.0.7.RELEASE] at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor $ AutowiredFieldElement.inject（AutowiredAnnotationBeanPostProcessor.java:584）〜[spring-beans-5.0.7.RELEASE.jar：5.0.7.RELEASE] ...省略了19个常见帧引起的：java.lang.IllegalArgumentException：不是托管类型：interface com.solopov.hillel.uquiz . 在org.springframework.data.jpa的org.hibernate.metamodel.internal.MetamodelImpl.managedType（MetamodelImpl.java:473）〜[hibernate-core-5.2.17.Final.jar：5.2.17.Final]的dao.AnswerDAO .repository.support.JpaMetamodelEntityInformation . （JpaMetamodelEntityInformation.java:73）〜[spring-data-jpa-2.0.8.RELEASE.jar：2.0.8.RELEASE] org.springframework.data.jpa.repository.support.JpaEntityInformationSupport .getEntityInformation（JpaEntityInformationSupport.java:66）〜[spring-data-jpa-2.0.8.RELEASE.jar：2.0.8.RELEASE]在org.springframework.data.jpa.repository.support.JpaRepositoryFactory.getEntityInformation（JpaRepositoryFactory . java：181）〜[spring-data-jpa-2.0.8.RELEASE.jar：2.0.8.RELEASE]在org.springframework.data.jpa.repository.support.JpaRepositoryFactory.getTargetRepository（JpaRepositoryFactory.java:119）〜 [ spring 数据-J pa-2.0.8.RELEASE.jar：2.0.8.RELEASE]在org.springframework.data.jpa.repository.support.JpaRepositoryFactory.getTargetRepository（JpaRepositoryFactory.java:102）〜[spring-data-jpa-2.0.8 .RELEASE.jar：2.0.8.RELEASE]在org.springframework.data.repository.core.support.RepositoryFactorySupport.getRepository（RepositoryFactorySupport.java:298）〜[spring-data-commons-2.0.8.RELEASE.jar： 2.0.8.RELEASE]在org.springframework.data.repository.core.support.RepositoryFactoryBeanSupport.lambda $ afterPropertiesSet $ 3（RepositoryFactoryBeanSupport.java:287)~ [spring-data-commons-2.0.8.RELEASE.jar：2.0 . 8.RELEASE]在org.springframework的org.springframework.data.util.Lazy.getNullable（Lazy.java:141）〜[spring-data-commons-2.0.8.RELEASE.jar：2.0.8.RELEASE] . org.springframework.data.repository.core.support.RepositoryFactoryBeanSupport上的data.util.Lazy.get（Lazy.java:63）〜[spring-data-commons-2.0.8.RELEASE.jar：2.0.8.RELEASE] .afterPropertiesSet（RepositoryFactoryBeanSupport.java:290）〜[spring-data-commons-2.0.8.RELEASE . jar：2.0.8.RELEASE] at org.springframework.data.jpa.repository.support.JpaRepositoryFactoryBean.afterPropertiesSet（JpaRepositoryFactoryBean.java:102)~ [spring-data-jpa-2.0.8.RELEASE.jar：2.0.8 .RELEASE]在org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods（AbstractAutowireCapableBeanFactory.java:1767）〜[spring-beans-5.0.7.RELEASE.jar：5.0.7.RELEASE] atorg.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean（AbstractAutowireCapableBeanFactory.java:1704）〜[ spring beans -5.0.7.RELEASE.jar：5.0.7.RELEASE] ... 29个共同帧省略

无法找到Spring User，Spring Data Java的UserDAO类型的Bean

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