java 反射提取类信息， 动态代理 和过滤某些方法演示(二)

package org.rui.classts.reflects;

import java.lang.reflect.InvocationHandler;
import java.lang.reflect.Method;
import java.lang.reflect.Proxy;
/**
 * 动态代理过滤某些方法 的演示
 * @author lenovo
 *
 */
	
	class MethodSelector implements InvocationHandler
	{
		private Object obj;
		public MethodSelector(Object o){this.obj=o;}
		public Object invoke(Object proxy, Method method, Object[] args)
				throws Throwable 
		{
			//System.out.println("proxy:"+proxy.getClass().getSimpleName());
			//可以拦截特殊处理
			if(method.getName().equals("interesting"))
			{
				System.out.println("proxy detected the interesting method");
			}
		 return method.invoke(obj, args);
		}
	 }
	
	// interface
	interface SomeMethod
	{
		void boring1();
		void interesting(String arg);
		void boring2();
		void boring3();
	}
	//------------------------------
	class Implementation implements SomeMethod
	{
		public void boring1() 
		{
			System.out.println("boring1");
		}
		public void interesting(String arg) 
		{
			System.out.println("interesting:"+arg);
		}
		public void boring2()
		{
			System.out.println("boring2");
		}
	
		public void boring3()
		{
			System.out.println("boring3");
			
		}
		
	}


//
public class SelectingMethods {
	public static void main(String[] args) 
	{
		//代理测试
		SomeMethod proxy =(SomeMethod)Proxy.newProxyInstance(
				SomeMethod.class.getClassLoader(), // 定义代理类的类加载器
				new Class[]{SomeMethod.class},// 代理类要实现的接口列表
				new MethodSelector(new Implementation())//指派方法调用的调用处理程序 
				);
		
		proxy.boring1();
		proxy.boring2();
		proxy.interesting("bonobo");
		proxy.boring3();
		
		
	}

}

package org.rui.classts;


import org.rui.classts.chilnd.*;

public class PetCount4 {
	
	public static void main(String[] args) {
		Pet p=new Dog();
		Class c=Pet.class;
		Class c1=Dog.class;
		Class c2=Cat.class;
		//对象对比 类
		if(p instanceof Dog){
			System.out.println("true");
		}else	System.out.println("fales");
		
		//class 对比 对象
		if(c.isInstance(p)){
			System.out.println("true");
		}else	System.out.println("fales");
		// class对比class
		if(c.isAssignableFrom(c1)){
			System.out.println("true");
		}else	System.out.println("fales");
		
		if(c2.isAssignableFrom(c1)){
			System.out.println("true");