java spring Initializing Collections 初始化集合

Initializing Collections 集合 -- [b]List[/b]

DrawingApp.java

package zxl;

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

public class DrawingApp {

/**
* @param args
*/
public static void main(String[] args) {
// TODO Auto-generated method stub
ApplicationContext context=new ClassPathXmlApplicationContext("spring.xml");
Triangle triangle =(Triangle) context.getBean("triangle");
triangle.draw();
}

}

Point.java
package zxl;

public class Point {
private int x;
private int y;

public int getX() {
return x;
}
public void setX(int x) {
this.x = x;
}
public int getY() {
return y;
}
public void setY(int y) {
this.y = y;
}

}

Triangle.java
package zxl;

import java.util.List;

public class Triangle {

private List<Point> points;

public List<Point> getPoints() {
return points;
}

public void setPoints(List<Point> points) {
this.points = points;
}

public void draw(){
for(Point point:points){
System.out.println("point = ("+point.getX()+","+point.getY()+")");
}
}
}

spring.xml
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE beans PUBLIC "-//SPRING//DTD BEAN 2.0//EN" "http://www.springframework.org/dtd/spring-beans-2.0.dtd">
<beans>

<bean id="triangle" name="triangle-name" class="zxl.Triangle" >
<property name="points" >
<list>
<ref bean="zeroPoint" />
<ref bean="point2" />
<ref bean="point3" />
</list>
</property>
</bean>

<bean id="zeroPoint" class="zxl.Point" >
<property name="x" value="0" />
<property name="y" value="0" />
</bean>

<bean id="point2" class="zxl.Point" >
<property name="x" value="-20" />
<property name="y" value="0" />
</bean>

<bean id="point3" class="zxl.Point" >
<property name="x" value="20" />
<property name="y" value="0" />
</bean>

</beans>