类名反射&&方法反射

通过反射机制，根据类名的字符串，反射对应的类（Class）

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/**    提供公共接口*/public interface Service{    public void method1();}

package com;/**    接口实现方法impl1*/public class ServiceImpl1 implements Service{    public void method1(){        System.out.println("I`am ServiceImpl1");    }}

package com;/**    接口实现方法impl2*/public class ServiceImpl2 implements Service{    public void method1(){        System.out.println("I`am ServiceImpl2");    }}

/*接口实现实现多态*/Class clazz1 = Class.forName(com.ServiceImpl1);Service object1 = (Service)clazz1.newInstance();Class clazz2 = Class.forName(com.ServiceImpl2);Service object2 = (Service)clazz2.newInstance();

/*不带参数的方法*/Method method = clazz.getDeclaredMethod("method1"); /*Object[] arguments = new Object[] {new Integer(37)};Method method = clazz.getDeclaredMethod(methodname,new Object[]{int.class,String.class});method.invoke(object , arguments);*/