自动装配

bean7：配置文件修改后

<?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.xsd
        http://www.springframework.org/schema/context
         http://www.springframework.org/schema/context/spring-context.xsd">
	<context:annotation-config/>
	<!-- services -->
	<bean id="userDao" class="com.student.annotation.UserDaoImpl"></bean>
	<bean id="userService" class="com.student.annotation.UserServiceImpl" autowire="byName"></bean>
	<bean id="userController" class="com.student.annotation.UserController " autowire="byName"></bean>
</beans>

UserService加上set方法后：

package com.student.annotation;

import javax.annotation.Resource;

import org.springframework.stereotype.Service;

@Service("userService")
public class UserServiceImpl implements UserService {
	@Resource(name="userDao")
	private UserDao userDao;
	@Override
	public void say() {
		this.userDao.say();
		System.out.println("userService 加载完成！！！");
	}
	public UserDao getUserDao() {
		return userDao;
	}
	public void setUserDao(UserDao userDao) {
		this.userDao = userDao;
	}
	

}

Uservice也加上set方法：

package com.student.annotation;

import javax.annotation.Resource;

import org.springframework.stereotype.Controller;

@Controller("userController")
public class UserController {
	@Resource(name="userService")
	private UserService userService;
	public void say()
	{
		this.userService.say();
		System.out.println("UserController加载完成");
	}
	public UserService getUserService() {
		return userService;
	}
	public void setUserService(UserService userService) {
		this.userService = userService;
	}

}

运行结果：

十月 15, 2019 7:52:02 下午 org.springframework.context.support.ClassPathXmlApplicationContext prepareRefresh
信息: Refreshing org[email protected]2b71fc7e: startup date [Tue Oct 15 19:52:02 CST 2019]; root of context hierarchy
十月 15, 2019 7:52:02 下午 org.springframework.beans.factory.xml.XmlBeanDefinitionReader loadBeanDefinitions
信息: Loading XML bean definitions from class path resource [com/student/annotation/bean7.xml]
userDao已经加载加载完成！！
userService 加载完成！！！
UserController加载完成