package com.sevenhu.domain;

import org.springframework.context.ApplicationContext;

import org.springframework.context.support.ClassPathXmlApplicationContext;

/**

 * Created by hu on 2016/3/31.

 */

public class HelloWorld {

    private String userName;

    //Spring项目中，配置在容器中的类，其属性都必须有setter方法

    public void setUserName(String userName) {

        this.userName=userName;

    }

    public void hello(){

        System.out.println("Hello: "+userName);

    }

    public static void main(String[] args){

        //1.创建Spring的IOC容器

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

       //2.从容器中获取bean

        HelloWorld helloWorld= (HelloWorld) applicationContext.getBean("helloWorld");

        System.out.println(helloWorld);

        //3.调用方法

        helloWorld.hello();

    }

}

<?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">

       <bean id="helloWorld" class="com.sevenhu.domain.HelloWorld">

              <property name="userName" value="Spring"></property>

       </bean>

</beans>