JAVA编码（6）——JAVA反射机制

Author:xushuyi

public class TestReflect {
 
 
// Car 是一个纯javaBean 类   同时包含一个普通方法instence()
 public static Car initDefaultConst() throws Exception{
  

//通过类装载器获取Car类对象
  ClassLoader classLoader = Thread.currentThread().getContextClassLoader();
  
  Class clazz = classLoader.loadClass("com.sinosoft.reflect.Car");
  //获取类的默认构造器对象并通过它实例化Car
  Constructor constructor = clazz.getDeclaredConstructor((Class[])null);

  Car car = (Car) constructor.newInstance();
  
  //通过反射方法设置属性
  Method setBrand = clazz.getMethod("setBrand", String.class);
  setBrand.invoke(car, "红旗");
  
  Method setColor = clazz.getMethod("setColor", String.class);
  setColor.invoke(car, "黑色");
  
  Method setMasSpeed = clazz.getMethod("setMasSpeed", String.class);
  setMasSpeed.invoke(car, "100");
  
  return car;
 }
 
 
 public static void main(String[] args) throws Exception {
  Car car = initDefaultConst();
  car.instence();
 }
}