反射基础-笔记01

public static void main(String[] args) throws Exception {//创建文件加载键值对Properties p = new Properties();//读取配置文件classname.txtFileReader fr = new FileReader("classname.txt");p.load(fr);fr.close();//获取数据String className = p.getProperty("classname");String methodName = p.getProperty("methodname");//创建反射Class c = Class.forName(className);//创建object反射构造Constructor con = c.getConstructor();Object obj = con.newInstance();//获取对象方法Method m = c.getMethod(methodName);m.invoke(obj);}}