如何利用反射去访问一个私有的方法

package com.java.lesson.reflect;

public class PrivateTest {

 private String name = "zhang";

 public String getName() {   return name;  }

 private String sayTo(String name) {   return " hello ----- " + name;  }

}

 

===================

package com.java.lesson.reflect;

import java.lang.reflect.Field;

import java.lang.reflect.Method;

 public class TestPrivate {

 public static void main(String[] args) throws Exception {

  PrivateTest p = new PrivateTest();

  Class<?> classType = p.getClass();

  Method method = classType.getDeclaredMethod("sayTo",     new Class[] { String.class });

  method.setAccessible(true);

  Object object = method.invoke(p, new Object[] { "sxz" });

  System.out.println(object);

  // =========================================================  

 Field field = classType.getDeclaredField("name");  

 field.setAccessible(true);  

 field.set(p,"lisi");  

 System.out.println(p.getName());   

  }

}