C#微信公衆號——自定義菜單

自定義菜單最多包括3個一級菜單，每一個一級菜單最多包含5個二級菜單。一級菜單最多4個漢字，二級菜單最多7個漢字，多出來的部分將會以「...」代替。
自定義菜單的介紹，能夠看官方開發文檔http://mp.weixin.qq.com/wiki/home/index.html
下面是我本身寫的一個實現自定義菜單的小Dome
1、先定義了一個Json字符串，格式要按照微信提供的Json格式

        //建立微信菜單JSON字符串
        private string GetWXMenuStr()
        {
            string weixin1 = "";
            weixin1 += "{\n";
            weixin1 += "\"button\":[\n";
            weixin1 += "{\n";
            // weixin1 += "\"type\":\"click\",\n";
            //第一個菜單
            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\":\"工做動態\",\n";
            weixin1 += "\"key\":\"12\"\n";
            weixin1 += "},\n";

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

            weixin1 += "{\n";
            weixin1 += "\"type\":\"click\",\n";
            weixin1 += "\"name\":\"經濟視野\",\n";
            weixin1 += "\"key\":\"14\"\n";
            weixin1 += "},\n";

            weixin1 += "{\n";
            weixin1 += "\"type\":\"click\",\n";
            weixin1 += "\"name\":\"專題報道\",\n";
            weixin1 += "\"key\":\"15\"\n";
            weixin1 += "}]\n";
            weixin1 += "},\n";
            //第二個菜單
            weixin1 += "{\n";
            //weixin1 += "\"type\":\"click\",\n";
            weixin1 += "\"name\":\"公共服務\",\n";
            weixin1 += "\"sub_button\":[\n";
            weixin1 += "{\n";
            weixin1 += "\"type\":\"click\",\n";
            weixin1 += "\"name\":\"企業之窗\",\n";
            weixin1 += "\"key\":\"21\"\n";
            weixin1 += "},\n";

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

            weixin1 += "{\n";
            weixin1 += "\"type\":\"click\",\n";
            weixin1 += "\"name\":\"創業指導\",\n";
            weixin1 += "\"key\":\"23\"\n";
            weixin1 += "},\n";

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

            weixin1 += "{\n";
            weixin1 += "\"type\":\"click\",\n";
            weixin1 += "\"name\":\"法律服務\",\n";
            weixin1 += "\"key\":\"25\"\n";
            weixin1 += "}]\n";
            weixin1 += "},\n";
            //第三個菜單(view類型的)
            weixin1 += "{\n";
            weixin1 += "\"name\":\"互動交流\",\n";
            weixin1 += "\"sub_button\":[\n";
            weixin1 += "{\n";
            weixin1 += "\"type\":\"view\",\n";
            weixin1 += "\"name\":\"註冊\",\n";
            weixin1 += "\"url\":\"http://1532618rl0.iok.la/Register.aspx\"\n";
            weixin1 += "},\n";



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

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

2、定義執行菜單請求方法

        /// <summary>
        /// 執行菜單請求
        /// </summary>
        /// <param name="url">微信提供的自定義菜單接口地址</param>
        /// <param name="postData">實現自定義菜單的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);
            // 準備請求...
            try
            {
                // 設置參數
                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();
                //發送請求並獲取相應迴應數據
                response = request.GetResponse() as HttpWebResponse;
                //直到request.GetResponse()程序纔開始向目標網頁發送Post請求
                instream = response.GetResponseStream();
                sr = new StreamReader(instream, encoding);
                //返回結果網頁（html）代碼
                string content = sr.ReadToEnd();
                string err = string.Empty;
            }
            catch (Exception ex)
            {
                string err = ex.Message;
            }
        }

3、實現自定義菜單

       private string postUrl = "https://api.weixin.qq.com/cgi-bin/menu/create?access_token=";
        //建立自定義菜單
        public void CreateWxMenu()
        {
            string weixin1 = GetWXMenuStr();//獲取菜單Json字符串
            string AccessToken = Helper.IsExistAccess_Token();//獲取AccessToken
            PostMenuData(postUrl + AccessToken, weixin1);//經過接口實現自定義菜單
        }

4、在程序運行的起始頁調用CreateWxMenu()方法便可。

其中獲取AccessToken的方法是調用前面寫的文章封裝的一個Helper方法實現的，地址http://www.cnblogs.com/zhangjd/p/5694737.html