spring4.0.0的配置和使用

1.创建一个javaproject或者webproject，我创建的时webproject，编译器用的时myeclipse2013

2.在lib文件夹以下倒入spring须要的一些核心包例如以下

还需在lib文件夹以下导入数据库的驱动包，假设要做web开发，则还需把驱动包导入到buiderpath里面，否则可能会出现找不驱动包

3.在src文件夹以下编写spring的配置文件appliactionContext.xml文件。applicationContext.xml文件的格式在spring的官方文档里面有。我的配置文件例如以下：

<?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="..." class="...">

    collaborators and configuration for this bean go here

  </bean>

<bean id="..." class="...">

    collaborators and configuration for this bean go here

  </bean>

more bean definitions go here -->

 

 

  <bean id="chinese" class="com.iface.Chinese">

  </bean>

  <bean id="american" class="com.iface.American">

  </bean>

</beans>

4.编写測试类

1。编写接口;

package com.face;

public interface Human {

public void eat();

 public void walk();

}

2,实现类

package com.iface;

import com.face.Human;

public class American implements Human{

@Override

 public void eat() {

  // TODO Auto-generated method stub

  System.out.println("美国人吃西餐!");

 }

@Override

 public void walk() {

  // TODO Auto-generated method stub

  System.out.println("美国人常常坐车!");

 }

}

package com.iface;

import com.face.Human;

public class Chinese implements Human{

@Override

 public void eat() {

  // TODO Auto-generated method stub

  System.out.println("中国人非常会吃!");

 }

@Override

 public void walk() {

  // TODO Auto-generated method stub

  System.out.println("中国人健步如飞!");

 }

}

3。写工厂类

package com.factory;

import com.face.Human;

import com.iface.American;

import com.iface.Chinese;

public class Factory {

public Human getHuman(String name){

  if("Chinese".equals(name)){

   return new Chinese();

  }else if("American".equals(name)){

   return new American();

  }else{

   return null;

  }

 }

}

5，编写測试类

package com.test;

import org.springframework.context.ApplicationContext;

import org.springframework.context.support.ClassPathXmlApplicationContext;

import org.springframework.context.support.FileSystemXmlApplicationContext;

import com.face.Human;

public class TestMain1 {

/**

  * @param args

  */

 public static void main(String[] args) {

  // TODO Auto-generated method stub

ApplicationContext context =

       new FileSystemXmlApplicationContext("src/applicationContext.xml");

Human human=null;

  human=(Human) context.getBean("chinese");

  human.eat();

  human.walk();

  human=(Human) context.getBean("american");

  human.eat();

  human.walk();

 }

}

6測试结果输出：

中国人非常会吃!

中国人健步如飞!

美国人吃西餐!

美国人常常坐车!