Spring Framework_学习记录_07

版权声明： https://blog.csdn.net/qq_38386316/article/details/88691926

1.回调函数：

• DrawingApp.java

package org.zcs.spring;

import org.springframework.beans.factory.BeanFactory;
import org.springframework.context.ApplicationContext;
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");
		Triangle triangle = (Triangle)context.getBean("triangle2");
		triangle.draw();
	}
}

• Triangle.java

package org.zcs.spring;

import java.util.List;

import org.springframework.beans.BeansException;
import org.springframework.beans.factory.BeanNameAware;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextAware;

public class Triangle implements ApplicationContextAware, BeanNameAware{
	 private Point pointA;
	 private Point pointB;
	 private Point pointC;
	 private ApplicationContext context;

	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("This is PointA: (" +getPointA().getX()  +"," + getPointA().getY() +")");
			System.out.println("This is PointB: (" +getPointB().getX()  +"," + getPointB().getY() +")");
			System.out.println("This is PointC: (" +getPointC().getX()  +"," + getPointC().getY() +")");
	}


	@Override
	public void setApplicationContext(ApplicationContext context) throws BeansException {
		// TODO Auto-generated method stub
		this.context = context;
		//System.out.println(context);
	}


	@Override
	public void setBeanName(String beanName) {
		// TODO Auto-generated method stub
		System.out.println("The bean Name is:" + beanName);
	}
  

}

• 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 = "parenttriangle" class = "org.zcs.spring.Triangle">
   		<property name="pointA" ref = "pointA"></property>
   	</bean>
   	<bean id = "triangle1" class= "org.zcs.spring.Triangle" parent = "parenttriangle"  >
 		 <property name="pointB" ref = "pointB"></property>
		 <property name="pointC" ref = "pointC"></property>
   	</bean>
   	<bean id = "triangle2" class= "org.zcs.spring.Triangle" parent = "parenttriangle"  >
 		 <property name="pointB" ref = "pointB"></property>
 
   	</bean>
   	
   	<bean id= "pointA" class = "org.zcs.spring.Point">
   		<property name="x"  value = "0"></property>
   		<property name="y"  value = "0"></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>
  </beans>

2.Bean Definition Inheritance

• DrawingApp.java

package org.zcs.spring;

import org.springframework.beans.factory.BeanFactory;
import org.springframework.context.ApplicationContext;
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");
		Triangle triangle = (Triangle)context.getBean("triangle1");
		triangle.draw();
	}
}

• Triangle.java

package org.zcs.spring;

import java.util.List;

import org.springframework.beans.BeansException;
import org.springframework.beans.factory.BeanNameAware;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextAware;

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 p : points) {
				System.out.println("This is PointA: (" +p.getX()  +"," + p.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 = "parenttriangle" class = "org.zcs.spring.Triangle" abstract = "true">
   		<property name="points"  >
   			<list>
   				<ref bean = "pointA"/>
   			</list>
   		</property>
   	</bean>
   	<bean id = "triangle1" class= "org.zcs.spring.Triangle" parent = "parenttriangle"  >
   	   	<property name="points"  >
	   			<list merge = "true">
	   				<ref bean = "pointB"/>
	   				<ref bean = "pointC"/>
	   			</list>
   		</property>

   	</bean>
 
   	
   	<bean id= "pointA" class = "org.zcs.spring.Point">
   		<property name="x"  value = "0"></property>
   		<property name="y"  value = "0"></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>
 
   	
  </beans>

3. 学习笔记

• 主要学习了回调函数的使用，显示bean的名字和内容。
• bean里面定义的继承如何使用的。
• 学习了集合的内容如何在bean中定义的。