Spring阶段性学习总结（九）泛型依赖注入

package SpringGenericDi;

import org.springframework.stereotype.Repository;


public class BaseRepository<T> {


}

package SpringGenericDi;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;


public class BaseService<T> {
    @Autowired
        protected BaseRepository<T> repository;

        public void add(){
            System.out.println("BaseService add......");
            System.out.println(repository);
        }

}

package SpringGenericDi;

public class User {
}

package SpringGenericDi;

import org.springframework.stereotype.Repository;

@Repository
public class UserRepository extends  BaseRepository<User> {
}

package SpringGenericDi;

import org.springframework.stereotype.Service;

@Service
public class UserService extends BaseService<User> {
}

package SpringGenericDi;

import org.springframework.context.support.ClassPathXmlApplicationContext;

public class Main {
    public static void main(String[] args) {
        ClassPathXmlApplicationContext ctx = new ClassPathXmlApplicationContext("SpringGenericDi/beans-genericDi.xml");
        UserService userService = (UserService) ctx.getBean("userService");
        userService.add();
    }
}

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xmlns:context="http://www.springframework.org/schema/context"
       xsi:schemaLocation="http://www.springframework.org/schema/beans
       http://www.springframework.org/schema/beans/spring-beans-4.2.xsd
       http://www.springframework.org/schema/context
       http://www.springframework.org/schema/context/spring-context-4.2.xsd">

    <context:component-scan base-package="SpringGenericDi"></context:component-scan>

</beans>