java 动态代理

package TestDaiLi;

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

public class Main {
   public static  void  main(String []args){

        InvocationHandler handler = new InvocationHandler() {
            @Override
            public Object invoke(Object proxy, Method method, Object[] args) throws Throwable {
                System.out.println(method);
                if (method.getName().equals("morning")) {
                    System.out.println("Good morning, " + args[0]);
                }
                return null;
            }
        };

        Hello hello = (Hello) Proxy.newProxyInstance(
                Hello.class.getClassLoader(), // 传入ClassLoader
                new Class[] { Hello.class }, // 传入要实现的接口
                handler); // 传入处理调用方法的InvocationHandler
        hello.morning("小小");

    }
}

package TestDaiLi;


public interface Hello {
    void morning(String name);
}