java反射

package com.test;

import java.lang.reflect.Method;

public class ReflectMethodInvoke {

	public static void main(String[] args) {
		ReflectMethodInvoke rmi = new ReflectMethodInvoke();
		rmi.printReflectResult();
	}
	public void  printReflectResult(){
		ReflectMethodInvoke rmi = new ReflectMethodInvoke();
		Class bean = ReflectMethodInvoke.class;
		String str = null;
		try{
			Method method = bean.getMethod("getUserName", null);
			str = (String)method.invoke(rmi, null);
		}catch (Exception e) {
			e.printStackTrace();
		}
		System.out.println(str);

	}

	public String getUserName(){
		return "Hello World";
	}
}

运行结果：