spring core container ApplicationContext

//bean.xml profile

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xsi:schemaLocation="http://www.springframework.org/schema/beans
        http://www.springframework.org/schema/beans/spring-beans.xsd">
    <!--把对象的创建交给spring管理-->
    <bean id="accountService" class="com.hope.service.impl.AccountServiceImpl"/>
    <bean id="accountDao" class="com.hope.dao.impl.AccountDaoImpl"/>

</beans>

package com.hope.ui;


import com.hope.dao.IAccountDao;
import com.hope.service.IAccountService;
import org.springframework.context.ApplicationContext;
org.springframework.context.support.ClassPathXmlApplicationContext Import ; 

/ ** 
* @author newcityman 
* @date 2019/11/18 - 14:23 
* simulate a presentation layer frame 
* / 
public class Client { 
 / ** 
* Get the ioc spring containers, obtained according to the object id 
* three interface implementation class ApplicationContext 
* 1, ClassPathXmlApplicationContext: it can load the configuration file class path, requires the class file must be arranged below the path. Not the case, could not be loaded 
* 2, FileSystemXmlApplicationContext: it can load the configuration file in the disk any path (must have access to) 
* 3, AnnotationConfigApplicationContext: it is to read the annotation to create the container method 
* @param args * / public static void main (String [] args) { //. 1, obtaining the container object core ApplicationContext ac =
 
 
 
new ClassPathXmlApplicationContext("bean.xml");
 //2、根据id获取bean对象
 IAccountService as=(IAccountService)ac.getBean("accountService");
 IAccountDao ad = ac.getBean("accountDao",IAccountDao.class);
 System.out.println(as);
 System.out.println(ad);

 }
}