1、定义基础仓库

package com.spring.generic.di;public class BaseRepository
     
       {}
     

2、定义基础服务层

package com.spring.generic.di;import org.springframework.beans.factory.annotation.Autowired;public class BaseService
     
       {    @Autowired    protected BaseRepository
      
        repository;        public void add(){        System.out.println("add...");        System.out.println(repository);    }}
      
     

3、定义User服务层

package com.spring.generic.di;import org.springframework.stereotype.Service;@Servicepublic class UserService extends BaseService
     
      {    }
     

4、定义仓库服务层

package com.spring.generic.di;import org.springframework.stereotype.Repository;@Repositorypublic class UserRepository extends BaseRepository
     
      {    }
     

5、测试类

package com.spring.generic.di;import org.springframework.context.ApplicationContext;import org.springframework.context.support.ClassPathXmlApplicationContext;public class Main {    public static void main(String[] args) {        ApplicationContext ctx = new ClassPathXmlApplicationContext("bean-generic.xml");                UserService userService = (UserService)ctx.getBean("userService");        userService.add();    }}