className = Student
methodName = student

import java.awt.*;
import java.io.FileReader;
import java.lang.reflect.Method;
import java.util.Properties;/*** @author Alina* @date 2022年01月08日 7:08 下午*/
public class ReflectPra {public static void main(String[] args) throws Exception{//创建键值对Properties pro  = new Properties();//创建集合FileReader fileReader = new FileReader("config.txt");pro.load(fileReader);fileReader.close();System.out.println(pro);Class clazz = Class.forName(pro.getProperty("className"));Object obj = clazz.newInstance();Method method = clazz.getMethod(pro.getProperty("methodName"));method.invoke(obj);}
}