项目结构
http://www.cnblogs.com/hongten/gallery/image/112322.html
这里需要设置环境：
添加如下jar包
commons-logging.jar
spring.jar
/spring_0001_搭建spring环境/src/com/b510/service/PersonService.java
1 package com.b510.service;
2 /**
3 *
4 * @author Hongten
5 * 这是一个Service层的接口
6 *
7 */
8 public interface PersonService {
9
10 public abstract void save();
11
12 }
/spring_0001_搭建spring环境/src/com/b510/service/impl/PersonServiceBean.java
1 package com.b510.service.impl;
2
3 import com.b510.service.PersonService;
4 /**
5 *
6 * @author Hongten
7 * 实现PersonService接口
8 */
9 public class PersonServiceBean implements PersonService {
10 /* (non-Javadoc)
11 * @see com.b510.service.impl.PersonService#save()
12 */
13 public void save() {
14 System.out.println("i'm hongten,这是save()方法");
15 }
16 }
beans.xml
1 <?xml version="1.0" encoding="UTF-8"?>
2 <beans xmlns="http://www.springframework.org/schema/beans"
3 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
4 xsi:schemaLocation="http://www.springframework.org/schema/beans
5 http://www.springframework.org/schema/beans/spring-beans-2.5.xsd">
6 <bean id="personServiceImpl" class="com.b510.service.impl.PersonServiceBean"></bean>
7 </beans>
/spring_0001_搭建spring环境/src/junit/test/SpringTest.java
package junit.test;
import org.junit.BeforeClass;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
import com.b510.service.PersonService;
/**
*
* @author Hongten
* 测试类
*/
public class SpringTest {
@BeforeClass
public static void setUpBeforeClass() throws Exception {
}
/**
* spring容器实例化
*/
public void instanceSpring(){
ApplicationContext ctx=new ClassPathXmlApplicationContext(new String[]{"beans.xml"});
//取出bean
PersonService personService=(PersonService) ctx.getBean("personServiceImpl");
//调用bean的方法save()
personService.save();
}
public static void main(String[] args) {
new SpringTest().instanceSpring();
}
}
ApplicationContext实例是Spring的核心，它既是一个巨大的工厂，也是一个功能强大的工厂，spring框架的绝大部分功能
都是通过该容器实现的。
运行结果
2012-3-5 20:19:05 org.springframework.context.support.AbstractApplicationContext prepareRefresh
信息: Refreshing org.springframework.context.support.ClassPathXmlApplicationContext@15eb0a9: display name [org.springframework.context.support.ClassPathXmlApplicationContext@15eb0a9]; startup date [Mon Mar 05 20:19:05 CST 2012]; root of context hierarchy
2012-3-5 20:19:05 org.springframework.beans.factory.xml.XmlBeanDefinitionReader loadBeanDefinitions
信息: Loading XML bean definitions from class path resource [beans.xml]
2012-3-5 20:19:05 org.springframework.context.support.AbstractApplicationContext obtainFreshBeanFactory
信息: Bean factory for application context [org.springframework.context.support.ClassPathXmlApplicationContext@15eb0a9]: org.springframework.beans.factory.support.DefaultListableBeanFactory@16a786
2012-3-5 20:19:05 org.springframework.beans.factory.support.DefaultListableBeanFactory preInstantiateSingletons
信息: Pre-instantiating singletons in org.springframework.beans.factory.support.DefaultListableBeanFactory@16a786: defining beans [personServiceImpl]; root of factory hierarchy
i'm hongten,这是save()方法