存储库注释在Spring data JPA上不起作用

Question

我正在构建一个使用Spring data jpa特性的Spring-boot应用程序。

请在我的dao层代码下面找到

package com.adv.dao;

import org.springframework.data.jpa.repository.JpaRepository;
import org.springframework.stereotype.Repository;

@Repository
public interface CustomerDao extends JpaRepository<Customer, String> {

}

我正在使用一个DaoProvider类，如下所示：

package com.adv.dao;

import java.io.Serializable;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Repository;

@Repository
public class DaoProvider implements Serializable {

private static final long serialVersionUID = 1L; 

@Autowired
private CustomerDao customerDao;

public CustomerDao getCustomerDao() {
    return customerDao;
}
}

我的spring boot主类定义如下：

@SpringBootApplication
@ComponentScan(basePackages="com.adv")
public class AdvMain extends SpringBootServletInitializer {

   @Override
   protected SpringApplicationBuilder configure(SpringApplicationBuilder application) {
      return application.sources(AdvMain.class);
   }

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

现在，在运行时，我得到以下异常：

Field customerDao in com.adv.dao.DaoProvider required a bean of type 'com.adv.dao.CustomerDao' that could not be found.

Answer 1

尝试在advmain上添加@enablejparepositories（“com.adv.dao”），这是由@hang321在Spring Boot Ask中所建议的