微信开发之（五）微信获取自定义菜单

在处理请求的方法上，判断是post的提交方式后加载代码：

 ///加载自定义菜单
                string postData = "{" + "
";
                postData += ""button":[ " + "
";
                postData += "{ " + "
";
                postData += ""name":"简单查"," + "
";
                postData += ""sub_button":[" + "
";
                postData += "{ " + "
";
                postData += " "type":"click"," + "
";
                postData += " "name":"我的薪资", " + "
";
                postData += " "key":"mypay"" + "
";
                postData += "}," + "
";
                postData += "{ " + "
";
                postData += " "type":"click"," + "
";
                postData += " "name":"天气预报", " + "
";
                postData += " "key":"tianqiyubao"" + "
";
                postData += "}," + "
";
                postData += "{ " + "
";
                postData += " "type":"view"," + "
";
                postData += " "name":"火车票查询", " + "
";
                postData += " "url":"http://www.baidu.com"" + "
";
                postData += "}," + "
";
                postData += "{ " + "
";
                postData += " "type":"click"," + "
";
                postData += " "name":"开心一刻", " + "
";
                postData += " "key":"kaixinyixiao"" + "
";
                postData += " }]" + "
";
                postData += "}," + "
";
                postData += "{" + "
";
                postData += ""name":"会员管理", " + "
";
                postData += ""sub_button":[" + "
";
                postData += "{ " + "
";
                postData += " "type":"view"," + "
";
                postData += " "name":"会员注册", " + "
";
                postData += " "url":"http://www.vip.com"" + "
";
                postData += "}," + "
";
                postData += "{ " + "
";
                postData += " "type":"view"," + "
";
                postData += " "name":"重置密码", " + "
";
                postData += " "url":"http://www.taobao.com"" + "
";
                postData += "}," + "
";
                postData += "{ " + "
";
                postData += " "type":"click"," + "
";
                postData += " "name":"修改资料", " + "
";
                postData += " "key":"updateMessage"" + "
";
                postData += "}," + "
";
                postData += "{ " + "
";
                postData += " "type":"click"," + "
";
                postData += " "name":"我的提问", " + "
";
                postData += " "key":"mywen"" + "
";
                postData += "}," + "
";
                postData += "{ " + "
";
                postData += " "type":"click"," + "
";
                postData += " "name":"联系客服", " + "
";
                postData += " "key":"PhoneSerices"" + "
";
                postData += " }]" + "
";
                postData += "}," + "
";
                postData += "{" + "
";
                postData += ""name":"活动通知"," + "
";
                postData += ""sub_button":[" + "
";
                postData += "{ " + "
";
                postData += " "type":"click"," + "
";
                postData += " "name":"近期活动", " + "
";
                postData += " "key":"yuangonghuodong"" + "
";
                postData += "}," + "
";
                postData += "{ " + "
";
                postData += " "type":"click"," + "
";
                postData += " "name":"近期通知", " + "
";
                postData += " "key":"yuangongtongzhi"" + "
";
                postData += "}," + "
";
                postData += "{ " + "
";
                postData += " "type":"click"," + "
";
                postData += " "name":"有问必答", " + "
";
                postData += " "key":"youwenbida"" + "
";
                postData += " }]" + "
";
                postData += "}]" + "
";
                postData += "}" + "
";

                //自定义菜单token的获取 是用 下面的两个参数 获取的 不能直接用 公众平台的token
                string to = GetAccessToken();
                //本人不喜欢 后台 json的操作 直接截取就可以了 得到的就是 token 或者 自己 获取 json的token
                to = to.Substring(17, to.Length - 37);
                //加载菜单
                string i = GetPage("https://api.weixin.qq.com/cgi-bin/menu/create?access_token=" + to, postData);

 /// <summary>
        /// 加载菜单项
        /// </summary>
        /// <param name="p"></param>
        /// <param name="postData"></param>
        /// <returns></returns>
        private string GetPage(string p, 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(p) 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;
                return content;
            }
            catch (Exception ex)
            {
                string err = ex.Message;
                return string.Empty;
            }
        }

        /// <summary>
        /// 获取通行证
        /// </summary>
        /// <returns></returns>
        private string GetAccessToken()
        {
            string url_token = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=wx114078ffd1a092d5&secret=c76fc416e4d029e33e9c9ddb2d4bc9e3";
            HttpWebRequest myRequest = (HttpWebRequest)WebRequest.Create(url_token);
            myRequest.Method = "GET";
            HttpWebResponse myResponse = (HttpWebResponse)myRequest.GetResponse();
            StreamReader reader = new StreamReader(myResponse.GetResponseStream(), Encoding.UTF8);
            string content = reader.ReadToEnd(); 
            reader.Close();
            return content;
        }