public class ArrayListProxy {
public static void main(String[] args) {
final ArrayList target = new ArrayList();
List proxy = (List)Proxy.newProxyInstance(
List. class.getClassLoader(),
ArrayList. class.getInterfaces(),
new InvocationHandler(){
public Object invoke(Object proxy , Method method, Object[] args)
throws Throwable{
Long beginTime = System.currentTimeMillis();
Thread. sleep(10);
Object reVal = method.invoke( target, args);
long endTime = System.currentTimeMillis ();
System. out.println(method .getName() + " runing time is :" + (endTime - beginTime));
return reVal ;
}
});
proxy.add("测试——1");
proxy.add("测试——2");
proxy.add("测试——3");
proxy.add("测试——4");
System. out.println(proxy .toString());
}
}
代理模式-ArrayList的动态代理
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转载自blog.csdn.net/riju4713/article/details/80874830
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