利用java反射机制调用类的私有方法(推荐)

import java.lang.reflect.InvocationTargetException;import java.lang.reflect.Method;/** * @author thomaslwq  * @version 创建时间：Sep 4, 2012 9:53:49 PM * 类说明 */public class ReflectionTest {    public static void setObjectColor(Object obj) throws SecurityException, NoSuchMethodException, IllegalArgumentException, IllegalAcces***ception, InvocationTargetException{    Class cls = obj.getClass();    //获得类的私有方法    Method method = cls.getDeclaredMethod("privateMethod", null);    method.setAccessible(true); //没有设置就会报错    //调用该方法    method.invoke(obj, null);  }  public static void main(String args[]) throws SecurityException, IllegalArgumentException, NoSuchMethodException, IllegalAcces***ception, InvocationTargetException{        setObjectColor(new MyTest());  }} //测试类 class MyTest{      public void setMyTest(){    System.out.println("setMyTest");  }  /**   类的私有方法   **/  private void privateMethod(){    System.out.println("调用了 private Method");  }  }