Java基础之反射

获得一个类对应的Class对象

	Class clazz = Class.forName("com.example.User");
	
	User user = new User();
	Class clazz2 = user.getClass();

	Class clazz3 = User.class;

Method相关

	Method testMethod = clazz.getDeclaredMethod("test", String.class, int.class);
	testMethod.setAccessible(true);
	testMethod.invoke(object, "jackma", 50);//调用test方法，并传递了两个参数

Field相关

	Field field = clazz.getDeclaredField("lastName");
	field.setAccessible(true);
	field.set(object, "jackma");//给lastName属性赋值