学步园

下载spring相关组件：

http://www.springsource.org/download/community?project=Spring%2520Framework

将spring.jar和commons-logging.jar复制到项目中。

1、建接口：

package hello;

public interface GreetingService {

	public void sayGreeting();
}

2、实现类：

package hello;

public class GreetingServiceImpl implements GreetingService{

	private String greeting;
	
	public GreetingServiceImpl(){}
	
	public GreetingServiceImpl(String greeting){
		this.greeting=greeting;
	}
	
	public void sayGreeting() {
		System.out.println(greeting);
	}

	public void setGreeting(String greeting){
		this.greeting=greeting;
	}
	
}

3、建立beans.xml，版本不同，信息头也是不同的。我的版本是：2.5.6

<?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-2.5.xsd">

  <bean id="greetingService" class="hello.GreetingServiceImpl">
    <property name="greeting">
    <value>Hello World!!</value>
    </property>
  </bean>
</beans>

4、建一个测试类：

package test;

import hello.GreetingService;

import org.springframework.beans.factory.BeanFactory;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;

public class Test01 {

	public static void main(String[] args) throws Exception{
		ApplicationContext context=new ClassPathXmlApplicationContext(new String[]{"beans.xml"});
		BeanFactory factory=context;
		GreetingService gs=(GreetingService) factory.getBean("greetingService");
		gs.sayGreeting();
	}
}

5、结果出现如下图，表示成功。

这是一个Java project，而不是web，第一次学习Spring。共勉之。。。。