C#微信公众号——自定义菜单

自定义菜单最多包括3个一级菜单，每个一级菜单最多包含5个二级菜单。一级菜单最多4个汉字，二级菜单最多7个汉字，多出来的部分将会以“...”代替。
自定义菜单的介绍，可以看官方开发文档http://mp.weixin.qq.com/wiki/home/index.html
下面是我自己写的一个实现自定义菜单的小Dome
一、先定义了一个Json字符串，格式要按照微信提供的Json格式

        //创建微信菜单JSON字符串
        private string GetWXMenuStr()
        {
            string weixin1 = "";
            weixin1 += "{\n";
            weixin1 += "\"button\":[\n";
            weixin1 += "{\n";
            // weixin1 += "\"type\":\"click\",\n";
            //第一个菜单
            weixin1 += "\"name\":\"公共信息\",\n";
            weixin1 += "\"sub_button\":[\n";

            weixin1 += "{\n";
            weixin1 += "\"type\":\"click\",\n";
            weixin1 += "\"name\":\"通知公告\",\n";
            weixin1 += "\"key\":\"11\"\n";
            weixin1 += "},\n";

            weixin1 += "{\n";
            weixin1 += "\"type\":\"click\",\n";
            weixin1 += "\"name\":\"工作动态\",\n";
            weixin1 += "\"key\":\"12\"\n";
            weixin1 += "},\n";

            weixin1 += "{\n";
            weixin1 += "\"type\":\"click\",\n";
            weixin1 += "\"name\":\"政策法规\",\n";
            weixin1 += "\"key\":\"13\"\n";
            weixin1 += "},\n";

            weixin1 += "{\n";
            weixin1 += "\"type\":\"click\",\n";
            weixin1 += "\"name\":\"经济视野\",\n";
            weixin1 += "\"key\":\"14\"\n";
            weixin1 += "},\n";

            weixin1 += "{\n";
            weixin1 += "\"type\":\"click\",\n";
            weixin1 += "\"name\":\"专题报道\",\n";
            weixin1 += "\"key\":\"15\"\n";
            weixin1 += "}]\n";
            weixin1 += "},\n";
            //第二个菜单
            weixin1 += "{\n";
            //weixin1 += "\"type\":\"click\",\n";
            weixin1 += "\"name\":\"公共服务\",\n";
            weixin1 += "\"sub_button\":[\n";
            weixin1 += "{\n";
            weixin1 += "\"type\":\"click\",\n";
            weixin1 += "\"name\":\"企业之窗\",\n";
            weixin1 += "\"key\":\"21\"\n";
            weixin1 += "},\n";

            weixin1 += "{\n";
            weixin1 += "\"type\":\"click\",\n";
            weixin1 += "\"name\":\"金融服务\",\n";
            weixin1 += "\"key\":\"22\"\n";
            weixin1 += "},\n";

            weixin1 += "{\n";
            weixin1 += "\"type\":\"click\",\n";
            weixin1 += "\"name\":\"创业指导\",\n";
            weixin1 += "\"key\":\"23\"\n";
            weixin1 += "},\n";

            weixin1 += "{\n";
            weixin1 += "\"type\":\"click\",\n";
            weixin1 += "\"name\":\"管理服务\",\n";
            weixin1 += "\"key\":\"24\"\n";
            weixin1 += "},\n";

            weixin1 += "{\n";
            weixin1 += "\"type\":\"click\",\n";
            weixin1 += "\"name\":\"法律服务\",\n";
            weixin1 += "\"key\":\"25\"\n";
            weixin1 += "}]\n";
            weixin1 += "},\n";
            //第三个菜单(view类型的)
            weixin1 += "{\n";
            weixin1 += "\"name\":\"互动交流\",\n";
            weixin1 += "\"sub_button\":[\n";
            weixin1 += "{\n";
            weixin1 += "\"type\":\"view\",\n";
            weixin1 += "\"name\":\"注册\",\n";
            weixin1 += "\"url\":\"http://1532618rl0.iok.la/Register.aspx\"\n";
            weixin1 += "},\n";

            weixin1 += "{\n";
            weixin1 += "\"type\":\"view\",\n";
            weixin1 += "\"name\":\"登录\",\n";
            weixin1 += "\"url\":\"http://1532618rl0.iok.la\"\n";
            weixin1 += "}]\n";
            weixin1 += "}\n";
            weixin1 += "}]\n";

            weixin1 += "}\n";
            return weixin1;
        }

二、定义执行菜单请求方法

        /// <summary>
        /// 执行菜单请求
        /// </summary>
        /// <param name="url">微信提供的自定义菜单接口地址</param>
        /// <param name="postData">实现自定义菜单的Json字符串</param>
        public void PostMenuData(string url, string postData)
        {
            Stream outstream = null;
            Stream instream = null;
            StreamReader sr = null;
            HttpWebResponse response = null;
            HttpWebRequest request = null;
            Encoding encoding = Encoding.UTF8;
            byte[] data = encoding.GetBytes(postData);
            // 准备请求...
            try
            {
                // 设置参数
                request = WebRequest.Create(url) as HttpWebRequest;
                CookieContainer cookieContainer = new CookieContainer();
                request.CookieContainer = cookieContainer;
                request.AllowAutoRedirect = true;
                request.Method = "POST";
                request.ContentType = "application/x-www-form-urlencoded";
                request.ContentLength = data.Length;
                outstream = request.GetRequestStream();
                outstream.Write(data, 0, data.Length);
                outstream.Close();
                //发送请求并获取相应回应数据
                response = request.GetResponse() as HttpWebResponse;
                //直到request.GetResponse()程序才开始向目标网页发送Post请求
                instream = response.GetResponseStream();
                sr = new StreamReader(instream, encoding);
                //返回结果网页（html）代码
                string content = sr.ReadToEnd();
                string err = string.Empty;
            }
            catch (Exception ex)
            {
                string err = ex.Message;
            }
        }

三、实现自定义菜单

       private string postUrl = "https://api.weixin.qq.com/cgi-bin/menu/create?access_token=";
        //创建自定义菜单
        public void CreateWxMenu()
        {
            string weixin1 = GetWXMenuStr();//获取菜单Json字符串
            string AccessToken = Helper.IsExistAccess_Token();//获取AccessToken
            PostMenuData(postUrl + AccessToken, weixin1);//通过接口实现自定义菜单
        }

四、在程序运行的起始页调用CreateWxMenu()方法即可。

其中获取AccessToken的方法是调用前面写的文章封装的一个Helper方法实现的，地址http://www.cnblogs.com/zhangjd/p/5694737.html