使字段可访问。

//package com.nowjava;

/* from 
N o w J a v a . c o m*/

import java.lang.reflect.Field;


import java.lang.reflect.Modifier;

import java.security.AccessController;

import java.security.PrivilegedAction;


public class Main {

    /**

     * Make a field accessible.

     *

     * @param field the field

     */

    public static void setAccessible(final Field field) {

        if (Modifier.isPublic(field.getModifiers())) {

            return;

        }


        AccessController.doPrivileged(new PrivilegedAction<Object>() {

            @Override

            public Object run()