spring 配置

 1 <?xml version="1.0" encoding="UTF-8"?>  
 2 <beans xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"  
 3     xmlns="http://www.springframework.org/schema/beans"  
 4     xsi:schemaLocation="http://www.springframework.org/schema/beans  
 5     http://www.springframework.org/schema/beans/spring-beans-4.0.xsd">  
 6     <!-- 定义一个Bean实例：id为person的java对象，class为改类的路径 -->  
 7     <bean id="person" class="spr.Person" >
 8     <!-- name：调用名为axe的set方法，ref/value指set的参数-->  
 9     <property name="axe" ref="axe"></property>
10     </bean> 
11 </beans> 

 1 package spr;
 2 
 3 public class Person {
 4 
 5     private Axe axe;
 6 
 7     public Axe getAxe() {
 8         return axe;
 9     }
10 
11     public void setAxe(Axe axe) {
12         this.axe = axe;
13     }
14     public void useAxe(){
15         System.out.print("222");
16         System.out.print(axe.chop());
17     }
18     
19 }

1 package spr;
2 
3 public class Axe {
4 
5     public String chop(){
6         return"111";
7     }
8 }

 1 package spr;
 2 
 3 import org.springframework.context.ApplicationContext;
 4 import org.springframework.context.support.ClassPathXmlApplicationContext;
 5 
 6 public class BeanTest {
 7 
 8     public static void main(String[] args) {
 9 //        创建spring容器，获取id为person的bean
10         ApplicationContext ctx = new ClassPathXmlApplicationContext("beans.xml");
11         Person p = ctx.getBean("person", Person.class);
12         p.useAxe();
13     }
14 }