package com.mzsx.proxy; public interface FunctionServer { void creatdDoc(int count); void removeDoc(int count); }

package com.mzsx.proxy; public class FunctionServerImp implements FunctionServer { @Override public void creatdDoc(int count) { System.out.println("创建了"+count+"对象。。。。。。。"); } @Override public void removeDoc(int count) { System.out.println("删除了"+count+"对象。。。。。。。"); } }

package com.mzsx.proxy; public class Porformant { private long start; private long end; public void start(){ System.out.println("执行start。。。。。"); start =System.currentTimeMillis(); } public void end(){ end=System.currentTimeMillis(); System.out.println("耗时"+(end-start)+"ms........"); } }

package com.mzsx.proxy; import java.lang.reflect.InvocationHandler; import java.lang.reflect.Method; public class FunctionHandler implements InvocationHandler { private Object target; public FunctionHandler(Object target){ this.target=target; } @Override public Object invoke(Object proxy, Method method, Object[] args) throws Throwable { System.out.println("==============:"+proxy.getClass().getName()); Porformant porformant=new Porformant(); porformant.start(); Object object=method.invoke(target, args); porformant.end(); return object; } }package com.mzsx.proxy; import java.lang.reflect.Proxy; public class Functiontest { public static void main(String[] args) { // TODO Auto-generated method stub FunctionServer functionServer=new FunctionServerImp(); FunctionHandler functionHandler=new FunctionHandler(functionServer); FunctionServer proxy=(FunctionServer)Proxy.newProxyInstance(functionServer.getClass().getClassLoader(), functionServer.getClass().getInterfaces(), functionHandler); proxy.creatdDoc(10); System.out.println("-------------------------------------------"); proxy.removeDoc(20); } }

结果：

==============:$Proxy0 执行start。。。。。 创建了10对象。。。。。。。 耗时0ms........ ------------------------------------------- ==============:$Proxy0 执行start。。。。。 删除了20对象。。。。。。。 耗时1ms........