Spring Framework_学习记录_11

版权声明： https://blog.csdn.net/qq_38386316/article/details/88723252

1.Coding To Interfaces

• Shape.java

package org.zcs.spring;

public interface Shape {
	
	public void draw();
}

• Triangle.java

package org.zcs.spring;

 

public class Triangle   implements Shape {
	private Point pointA;
	private Point pointB;
	private Point pointC;
	public Point getPointA() {
		return pointA;
	}

	public void setPointA(Point pointA) {
		this.pointA = pointA;
	}

	public Point getPointB() {
		return pointB;
	}

	public void setPointB(Point pointB) {
		this.pointB = pointB;
	}

	public Point getPointC() {
		return pointC;
	}

	public void setPointC(Point pointC) {
		this.pointC = pointC;
	}
	public void draw () {
		System.out.println("Drawing Triangle :");
		System.out.println("This is PointA: (" +pointA.getX()  +"," + pointA.getY() +")");
		System.out.println("This is PointB: (" +pointB.getX()  +"," + pointB.getY() +")");
		System.out.println("This is PointC: (" +pointC.getX()  +"," + pointC.getY() +")");
}

 

}

• DrawingApp.java

package org.zcs.spring;

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

public class DrawingApp {

	public static void main(String[] args) {
		// TODO Auto-generated method stub
		//BeanFactory factory = new  FileSystemXmlApplicationContext("src/spring.xml");
		//Triangle triangle = new Triangle();
		 ApplicationContext context = new ClassPathXmlApplicationContext("spring.xml");
 
		Shape circle = (Shape)context.getBean("triangle");
		circle.draw();
	}
}

• Circle.java

package org.zcs.spring;

public class Circle implements Shape {

	private Point center;
	public Point getCenter() {
		return center;
	}
	public void setCenter(Point center) {
		this.center = center;
	}
	@Override
	public void draw() {
		// TODO Auto-generated method stub
		System.out.println("Drawing Circle:");
		System.out.println("Circle : point is : " + center.getX() +","  + center.getY());
		
	}
	
}

• spring.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xmlns:p="http://www.springframework.org/schema/p"
    xsi:schemaLocation="http://www.springframework.org/schema/beans
       http://www.springframework.org/schema/beans/spring-beans.xsd"
  >
 
   
   	<bean id = "triangle" class= "org.zcs.spring.Triangle"  autowire= "byName"  >
 		  
 		 <property name="pointA" ref = "pointA"></property>
 		 <property name="pointB" ref = "pointB"></property>
 		 <property name="pointC" ref = "pointC"></property>
 		
   	</bean>
   	
   	<bean id= "pointA" class = "org.zcs.spring.Point">
   		<property name="x"  value = "${pointA.pointX}"></property>
   		<property name="y"  value = "${pointA.pointY}"></property>
   	</bean>
   	<bean id= "pointB" class = "org.zcs.spring.Point">
		<property name="x"  value = "20"></property>
		<property name="y"  value = "0"></property>
	</bean>

 	<bean id= "pointC" class = "org.zcs.spring.Point">
		   <property name="x"  value = "0"></property>
		   <property name="y"  value = "20"></property>
   	</bean>
 	<bean class = "org.zcs.spring.MyBeanFactory" ></bean>
   	<bean class = "org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
   		<property name="locations" value = "pointsconfig.properties"></property>
   	</bean>
   	 <bean id = "circle" class= "org.zcs.spring.Circle"   >
 		  
 		 <property name="center" ref = "pointA"></property>

   	</bean>
  </beans>
 

2.学习记录

• 本节的神奇之处就是借助接口，使之更加方便的使用各种形状的图形。
• 又回忆了怎么在bean中赋值。