反射获取类结构信息

Posted 2022-04-28 sunzhongyu008

 

代码如下：

 1 package com.sina.demo;
 2 interface IMessageService
 3     public void send();
 4 
 5 interface IChannel
 6     public boolean connect();
 7 
 8 abstract class AbstractBase
 9 class Mail extends AbstractBase implements IMessageService,IChannel
10     @Override
11     public boolean connect() 
12         return true;
13     
14     @Override
15     public void send() 
16         if(this.connect()) 
17             System.out.println("【信息发送】www.sina.com.cn");
18         
19     
20 
21 public class JavaReflectDemo 
22     public static void main(String[] args) 
23         Class<?> cls = Mail.class;
24         Package pkg = cls.getPackage();
25         System.out.println("包名称："+pkg.getName());
26         Class<?> parent = cls.getSuperclass();
27         System.out.println("父类名称："+parent.getName());
28         Class<?> clazz[] = cls.getInterfaces();
29         for(Class<?> temp:clazz) 
30             System.out.println("父接口名称："+temp);
31         
32     
33 

运行结果：

包名称：com.sina.demo
父类名称：com.sina.demo.AbstractBase
父接口名称：interface com.sina.demo.IMessageService
父接口名称：interface com.sina.demo.IChannel