spring4.0.0的配置和使用

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1.创建一个java工程或者web工程，我创建的时web工程，编译器用的时myeclipse2013

2.在lib目录下面倒入spring需要的一些核心包如下

还需在lib目录下面导入数据库的驱动包，如果要做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目录下面编写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，我的配置文件如下：

<?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.编写测试类

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("美国人经常坐车!");
}

}

package com.iface;

import com.face.Human;

public class Chinese implements Human{

@Override
public void eat() {
// TODO Auto-generated method stub
System.out.println("中国人很会吃!");
}

@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，编写测试类

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测试结果输出：

中国人很会吃!
中国人健步如飞!
美国人吃西餐!
美国人经常坐车!

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