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[ASP.net教程]微信开发第一篇


在项目的根目录或者特定的文件夹内,创建一个ashx文件(一般处理程序文件),如图

 public void ProcessRequest(HttpContext context)
        {
            context.Response.ContentType = "text/plain";
          
            string postString = string.Empty;
            if (HttpContext.Current.Request.HttpMethod.ToUpper() == "POST")
            {
                using (Stream stream = HttpContext.Current.Request.InputStream)
                {
                    Byte[] postBytes = new Byte[stream.Length];
                    stream.Read(postBytes, 0, (Int32)stream.Length);
                    postString = Encoding.UTF8.GetString(postBytes);
                }

                if (!string.IsNullOrEmpty(postString))
                {
                    Response                }

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

                //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);

            }
            else
            {
                Auth(); //微信接入的测试
            }
          
        }

 

  /// <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=********&secret=*********";
            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;
        }

 

 /// <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>
        /// 获取参数进行认证
        /// </summary>
        private void Auth()
        {
            string token = "*****";//你申请的时候填写的Token

            string echoString = HttpContext.Current.Request.QueryString["echoStr"];
            string signature = HttpContext.Current.Request.QueryString["signature"];
            string timestamp = HttpContext.Current.Request.QueryString["timestamp"];
            string nonce = HttpContext.Current.Request.QueryString["nonce"];

            if (CheckSignature(token, signature, timestamp, nonce))
            {
                if (!string.IsNullOrEmpty(echoString))
                {
                    HttpContext.Current.Response.Write(echoString);
                    HttpContext.Current.Response.End();
                }
            }

        }
        /// <summary>
        /// 对微信传入参数进行封装到数组,拼接字符串,进行加密操作
        /// </summary>
        /// <param name="token"></param>
        /// <param name="signature"></param>
        /// <param name="timestamp"></param>
        /// <param name="nonce"></param>
        /// <returns></returns>
        private bool CheckSignature(string token, string signature, string timestamp, string nonce)
        {
            string[] ArrTmp = { token, timestamp, nonce };//将参数放进数组

            Array.Sort(ArrTmp);//对数组进行排序
            string tmpStr = string.Join("", ArrTmp);//将数组进行拼接
            ///对拼接后的字符串进行加密操作
            tmpStr = FormsAuthentication.HashPasswordForStoringInConfigFile(tmpStr, "SHA1");
            //转换成小写形式
            tmpStr = tmpStr.ToLower();
            //比对成功返回
            if (tmpStr == signature)
            {
                return true;
            }
            else
            {
                return false;
            }
        }