动态代理类

package itbuluoge.proxy;import java.lang.reflect.InvocationHandler;import java.lang.reflect.Method;import java.lang.reflect.Proxy;public class DynamicProxy implements InvocationHandler{	private Object obj;	public Object bind(Object obj)	{		this.obj=obj;		return Proxy.newProxyInstance(obj.getClass().getClassLoader(), obj.getClass().getInterfaces(), this);	}	public Object invoke(Object arg0, Method method, Object[] args)			throws Throwable {		Object result=null;		try		{			validateUser();			result=method.invoke(obj,args);		}		catch(Exception e)		{			e.printStackTrace();		}		return result;	}		public void validateUser()	{		System.out.println("验证用户...");	}}

測试类

package itbuluoge.proxy;public class TestDynamic {	/**	 * @param args	 */	public static void main(String[] args) {		// TODO Auto-generated method stub		DynamicProxy dp=new DynamicProxy();		ICompent com=(ICompent)dp.bind(new Compent());		com.bussiness1();		com.bussiness2();		com.bussiness3();	}}

输出结果

静态代理见文章：http://blog.csdn.net/itbuluoge/article/details/40046377