java 泛型依赖注入,Spring4学习笔记-泛型依赖注入

泛型依赖注入

BaseRepository.javapackage com.spring.beans.generic.di;

public class BaseRepository {

}

BaseService.javapackage com.spring.beans.generic.di;

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

public class BaseService {

@Autowired

protected BaseRepositorybaseRepository;

public void add() {

System.out.println("add...");

System.out.println(baseRepository);

}

}

UserRepository.javapackage com.spring.beans.generic.di;

import org.springframework.stereotype.Repository;

@Repository

public class UserRepository extends BaseRepository{

}

UserService.javapackage com.spring.beans.generic.di;

import org.springframework.stereotype.Service;

@Service

public class UserService extends BaseService{

}

beans-generic-di.xml<?xml  version="1.0" encoding="UTF-8"?>

xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"

xmlns:aop="http://www.springframework.org/schema/aop"

xmlns:context="http://www.springframework.org/schema/context"

xsi:schemaLocation="

http://www.springframework.org/schema/context

http://www.springframework.org/schema/context/spring-context.xsd

http://www.springframework.org/schema/beans

http://www.springframework.org/schema/beans/spring-beans-4.0.xsd

http://www.springframework.org/schema/aop

http://www.springframework.org/schema/aop/spring-aop-4.0.xsd">

Main.javapublic static void main(String[] args) {

ApplicationContext applicationContext = new ClassPathXmlApplicationContext("beans-generic-di.xml");

UserService userService = (UserService) applicationContext.getBean("userService");

userService.add();

}

输出

2014-9-22 20:20:17 org.springframework.context.support.ClassPathXmlApplicationContext prepareRefresh

信息: Refreshing org.springframework.context.support.ClassPathXmlApplicationContext@8b819f: startup date [Mon Sep 22 20:20:17 CST 2014]; root of context hierarchy

2014-9-22 20:20:17 org.springframework.beans.factory.xml.XmlBeanDefinitionReader loadBeanDefinitions

信息: Loading XML bean definitions from class path resource [beans-generic-di.xml]

add...

com.spring.beans.generic.di.UserRepository@c01e99