/**
* */package com.jp.action;

import java.lang.reflect.InvocationHandler;import java.lang.reflect.Method;import java.lang.reflect.Proxy;

import org.apache.log4j.Level;import org.apache.log4j.Logger;

/**
* @author JP
* */// 代理类实现了接口InvocationHandlerpublic class LogProxy implements InvocationHandler {

/*
* (non-Javadoc)
*
* @see java.lang.reflect.InvocationHandler#invoke(java.lang.Object,
* java.lang.reflect.Method, java.lang.Object[])*/private Logger logger = Logger.getLogger(this.getClass().getName());private Object delegate;

// 绑定代理对象 public Object bind(Object delegate) {this.delegate = delegate;return Proxy.newProxyInstance(delegate.getClass().getClassLoader(),
delegate.getClass().getInterfaces(), this);
}

// 针对接口编程 @Overridepublic Object invoke(Object proxy, Method method, Object[] args)throws Throwable {// TODO Auto-generated method stub Object result = null;try {
logger.log(Level.INFO, args[0] + " 开始审核数据...");
result = method.invoke(delegate, args);
logger.log(Level.INFO, args[0] + " 审核数据结束");
} catch (Exception e) {// TODO Auto-generated catch block logger.log(Level.INFO, e.toString());
}

return result;
}

}

package com.jp.impl;

/**
* @author JP
**/public interface TimeBookInterface {public void doAuditing(String name);

}

package com.jp.action;

import org.apache.log4j.Logger;

import com.jp.impl.TimeBookInterface;

/**
* @author JP
**/public class TimeBook implements TimeBookInterface{private Logger logger=Logger.getLogger(this.getClass().getName());

@Overridepublic void doAuditing(String name){
System.out.println(name+" is doing something about auditing...");
}

}

package com.jp.test;import com.jp.action.LogProxy;import com.jp.action.TimeBook;import com.jp.impl.TimeBookInterface;

public class TestHelloWorld {

public static void main(String[] args){// TODO Auto-generated method stub LogProxy logProxy=new LogProxy();
TimeBookInterface timeBookProxy=(TimeBookInterface) logProxy.bind(new TimeBook());
timeBookProxy.doAuditing("张三");
}
}