Spring框架——Bean的作用域（singleton和prototype）

package news;

public class Students {
	private String name;
	private int age;
	public Students(String name, int age) {
		super();
		this.name = name;
		this.age = age;
	}
	public Students() {
		super();
		// TODO Auto-generated constructor stub
	}
	public String getName() {
		return name;
	}
	public void setName(String name) {
		this.name = name;
	}
	public int getAge() {
		return age;
	}
	public void setAge(int age) {
		this.age = age;
	}
	

}

<?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 name="s1" class="news.Students"  scope="singleton">
<property name="name" value="曾傑"  ></property>
<property name="age" value="21"></property>
</bean>

<bean name="s2" class="news.Students"  scope="prototype">
<property name="name" value="曾傑"  ></property>
<property name="age" value="21"></property>
</bean>
</beans>

package news;

import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;

public class main {

	public static void main(String[] args) {
		//創建一個容器實例
		ApplicationContext act=new ClassPathXmlApplicationContext("news.xml");
	
		Students ss1;
		Students ss2;
		ss1=(Students)act.getBean("s1");
		ss2=(Students)act.getBean("s1");
		
		
		Students pp1;
		Students pp2;
		pp1=(Students)act.getBean("s2");
		pp2=(Students)act.getBean("s2");

		System.out.println("作用域：單例");
		//比較地址
		if(ss1==ss2){
			
			System.out.println();
			System.out.println(true);
		}
		else {
			System.out.println(false);
		}
		 //比較內容
		if(ss1.getName()==ss2.getName()){
			System.out.println(true);
		}
		else {
			System.out.println(false);
		}
		
		
		System.out.println("作用域：原型");
		//比較地址
		if(pp1==pp2){
			
			System.out.println();
			System.out.println(true);
		}
		else {
			System.out.println(false);
		}
        //比較內容
		if(pp1.getName()==pp2.getName()){
			System.out.println(true);
		}
		else {
			System.out.println(false);
		}
}
}