Codeless的部落格

Bean和Bean之間也可以利用繼承(Inheritance)的方式。

HelloWorld.java

package com.example ;

public class HelloWorld {
	private String message ;
	private String message1 ; 
	public void getMessage(){
	      System.out.println("Your Message : " + message) ;
	}
	public void setMessage(String message) {
		this.message = message;
	}
	public void getMessage1(){
	      System.out.println("Your Message1 : " + message1) ;
	}
	public void setMessage1(String message1) {
		this.message1 = message1;
	}
}

HelloPaul.java

package com.example ;

public class HelloPaul {
	private String message ;
	private String message1 ;
	private String message2 ; 

	public void getMessage(){
	      System.out.println("Your Message : " + message) ;
	}
	public void setMessage(String message) {
		this.message = message;
	}
	public void getMessage1(){
	      System.out.println("Your Message1 : " + message1) ;
	}
	public void setMessage1(String message1) {
		this.message1 = message1;
	}
	public void getMessage2(){
	      System.out.println("Your Message2 : " + message2) ;
	}
	public void setMessage2(String message2) {
		this.message2 = message2;
	}
}

Main.java

package com.example ;

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

public class Main {

	public static void main(String[] args) {
		ApplicationContext context = 
	             new ClassPathXmlApplicationContext("Beans.xml");

	      HelloWorld obj = (HelloWorld) context.getBean("helloWorld");
	      obj.getMessage();
	      obj.getMessage1();
	      
	      HelloPaul objPaul = (HelloPaul) context.getBean("helloPaul");
	      objPaul.getMessage();
	      objPaul.getMessage1();
	      objPaul.getMessage2();
	}
}

Beans.xml

結果顯示如下所示:

Your Message : Hello World
Your Message1 : Hello World1
Your Message : Hello Paul
Your Message1 : Hello World1
Your Message2 : Hello Paul2

另外亦可用template的方式,如下所示(將abstract屬性設定為true):