asp.net微信開發第一篇----開發者接入

 

以上是微信官方后台需要設置的，

 

以下是我們自己的程序頁面對接配置的一些設置：

 

 

 

 

 

 

字段說明：

平台名稱：看圖片，關注公眾號時顯示的歡迎關注（平台名稱）

APPID：這個必須和微信官網的一致

Appsecret:這個必須和微信官網的一致

Token：這個必須和微信官網的一致

授權域名：這個必須是微信官網設置的授權回調頁面地址是一樣的，

功能說明：這個就是關注公眾號時顯示的圖文消息下的那幾段話，

官方網址：這個就是點擊關注公眾號時顯示的圖文消息的跳轉地址

關注時的圖片：這個就是點擊關注公眾號時顯示的圖文消息的圖片

 

 

處理方法：把字段信息保存到本地數據庫，這里呢，我設置了兩個，如果你關注了微信測試號本地測試時使用另外一個，真正的項目就切換到另外一個

設置好以后，還沒有啟用這個配置，只需點擊一下設置默認（只是將狀態更改為1而已）即可，隨后，在頁面調用的時候，調用微信服務類

 

代碼如下：

 

  /// <summary>
        /// 獲取微信公眾號的AppId
        /// </summary>
        public static string GetAppId()
        {
            //獲取使用中的微信配置信息
            WeChatConfigService wcf = new WeChatConfigService();
            WeChatConfigInfo wcfInfo = wcf.GetWeChatConfigInfoByInUse();
            if (wcfInfo != null)
            {
                return wcfInfo.wechat_AppId.ToString();
            }
            return null; ;
        }

        /// <summary>
        /// 獲取微信公眾號的AppSecret
        /// </summary>
        public static string GetAppSecret()
        {
            //獲取使用中的微信配置信息
            WeChatConfigService wcf = new WeChatConfigService();
            WeChatConfigInfo wcfInfo = wcf.GetWeChatConfigInfoByInUse();
            if (wcfInfo != null)
            {
                return wcfInfo.wechat_AppSecret.ToString();
            }
            return null; ;
        }

        /// <summary>
        /// 獲取本地設置的Token
        /// </summary>
        public static string GetToken()
        {
            //獲取使用中的微信配置信息
            WeChatConfigService wcf = new WeChatConfigService();
            WeChatConfigInfo wcfInfo = wcf.GetWeChatConfigInfoByInUse();
            if (wcfInfo != null)
            {
                return wcfInfo.wechat_Token.ToString();
            }
            return null; ;
        }

        /// <summary>
        /// 獲取網頁授權域名
        /// </summary>
        public static string GetpostUrl()
        {
            //獲取使用中的微信配置信息
            WeChatConfigService wcf = new WeChatConfigService();
            WeChatConfigInfo wcfInfo = wcf.GetWeChatConfigInfoByInUse();
            if (wcfInfo != null)
            {
                return wcfInfo.wechat_PostUrl.ToString();
            }
            return null; ;
        }

        /// <summary>
        /// 獲取通行證
        /// </summary>
        /// <returns></returns>
        public  string GetAccessToken()
        {
            //獲取使用中的微信配置信息
            WeChatConfigService wcf = new WeChatConfigService();
            WeChatConfigInfo wcfInfo = wcf.GetWeChatConfigInfoByInUse();
            string appid = "";
            string secret = "";
            if (wcfInfo != null)
            {
                //初始化微信配置信息
                appid = wcfInfo.wechat_AppId.ToString();
                secret = wcfInfo.wechat_AppSecret.ToString();
            }

            string url_token = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid="+appid+"&secret="+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;
        }

 

在項目的根目錄或者特定的文件夾內，創建一個ashx文件(一般處理程序文件)，如圖

 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))
                {
                    ResponseXML(postString);//返回給微信用戶信息
                }

                ///加載自定義菜單
                StringBuilder sb = new StringBuilder();
                sb.Append("{");
                sb.Append("\"button\":[ ");
                sb.Append("{ ");
                sb.Append("\"name\":\"好好學習\",");
                sb.Append("\"sub_button\":[");
                sb.Append("{ ");
                sb.Append("\"type\":\"click\",");
                sb.Append("\"name\":\"微學堂\", ");
                sb.Append("\"key\":\"weixuetang\"");
                sb.Append("},");
                sb.Append("{ ");
                sb.Append("\"type\":\"click\",");
                sb.Append("\"name\":\"大咖說\", ");
                sb.Append("\"key\":\"dakashuo\"");
                sb.Append("},");
                sb.Append("{ ");
                sb.Append("\"type\":\"click\",");
                sb.Append("\"name\":\"好書推薦\", ");
                sb.Append("\"key\":\"haoshutuijian\"");
                sb.Append("},");
                sb.Append("{ ");
                sb.Append("\"type\":\"click\",");
                sb.Append("\"name\":\"講師風采\", ");
                sb.Append("\"key\":\"jiangshifengcai\"");
                sb.Append("}]");
                sb.Append("},");
                sb.Append("{");
                sb.Append("\"name\":\"天天向上\", ");
                sb.Append("\"sub_button\":[");
                sb.Append("{ ");
                sb.Append("\"type\":\"click\",");
                sb.Append("\"name\":\"看見\", ");
                sb.Append("\"key\":\"kanjian\"");
                sb.Append("},");
                sb.Append("{ ");
                sb.Append("\"type\":\"click\",");
                sb.Append("\"name\":\"撩我\", ");
                sb.Append("\"key\":\"liaowo\"");
                sb.Append("},");
                sb.Append("{ ");
                sb.Append("\"type\":\"view\",");
                sb.Append("\"name\":\"文化UP\", ");
                sb.Append("\"url\":\"https://open.weixin.qq.com/connect/oauth2/authorize?appid="+WeiXinServer.GetAppId().ToString()+"&redirect_uri=" + HttpUtility.UrlEncode(""+WeiXinServer.GetpostUrl().ToString()+"/wenhuaup/wenhua_home.aspx") + "&response_type=code&scope=snsapi_base&state=" + new Random().Next(1000, 200000).ToString() + "#wechat_redirect\"");
                sb.Append("},");
                sb.Append("{ ");
                sb.Append("\"type\":\"click\",");
                sb.Append("\"name\":\"蘿卜快來\", ");
                sb.Append("\"key\":\"luobokuailai\"");
                sb.Append("}]");
                sb.Append("},");
                sb.Append("{");
                sb.Append("\"name\":\"員工自助\",");
                sb.Append("\"sub_button\":[");
                sb.Append("{ ");
                sb.Append("\"type\":\"click\",");
                sb.Append("\"name\":\"我的薪資\", ");
                sb.Append("\"key\":\"mysalary\"");
                sb.Append("},");
                sb.Append("{ ");
                sb.Append("\"type\":\"view\",");
                sb.Append("\"name\":\"個人中心\", ");
                sb.Append("\"url\":\"https://open.weixin.qq.com/connect/oauth2/authorize?appid=" + WeiXinServer.GetAppId().ToString() + "&redirect_uri=" + HttpUtility.UrlEncode(""+WeiXinServer.GetpostUrl()+"/UserLogin.aspx") + "&response_type=code&scope=snsapi_base&state=" + new Random().Next(1000, 200000).ToString() + "#wechat_redirect\"");
                sb.Append("},");
                sb.Append("{ ");
                sb.Append("\"type\":\"view\",");
                sb.Append("\"name\":\"在線提問\", ");
                sb.Append("\"url\":\"https://open.weixin.qq.com/connect/oauth2/authorize?appid=" + WeiXinServer.GetAppId().ToString() + "&redirect_uri=" + HttpUtility.UrlEncode(""+WeiXinServer.GetpostUrl()+"/UserCenter/question/MyQuestion.aspx") + "&response_type=code&scope=snsapi_base&state=" + new Random().Next(1000, 200000).ToString() + "#wechat_redirect\"");
                sb.Append("}]");
                sb.Append("}]");
                sb.Append("}");

                //自定義菜單token的獲取 是用 下面的兩個參數 獲取的 不能直接用 公眾平台的token
                string to = GetAccessToken();
                //本人不喜歡 后台 json的操作 直接截取就可以了 得到的就是 token 或者 自己 獲取 json的token
                to = to.Substring(17, to.Length - 37);
                //加載菜單
                string i = GetPage("https://api.weixin.qq.com/cgi-bin/menu/create?access_token=" + to, sb.ToString());
            }
            else
            {
                Auth(); //微信接入的測試
            }
          
        }

 

   /// <summary>
        /// 獲取通行證
        /// </summary>
        /// <returns></returns>
        public string GetAccessToken()
        {
            string url_token = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=" + WeiXinServer.GetAppId().ToString() + "&secret=" + WeiXinServer.GetAppSecret().ToString();
            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>
        /// 加載菜單項
        /// </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);
            // 准備請求...
            try
            {
                // 設置參數
                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();
                //發送請求並獲取相應回應數據
                response = request.GetResponse() as HttpWebResponse;
                //直到request.GetResponse()程序才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;
                return content;
            }
            catch (Exception ex)
            {
                string err = ex.Message;
                return string.Empty;
            }
        }

 

 /// <summary>
        /// 獲取參數進行認證
        /// </summary>
        private void Auth()
        {
             string token = WeiXinServer.GetToken().ToString();//你申請的時候填寫的Token,必須和微信上的保持一致

            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>
        /// 對微信傳入參數進行封裝到數組，拼接字符串，進行加密操作
        /// </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 };//將參數放進數組

            Array.Sort(ArrTmp);//對數組進行排序
            string tmpStr = string.Join("", ArrTmp);//將數組進行拼接
            ///對拼接后的字符串進行加密操作
            tmpStr = FormsAuthentication.HashPasswordForStoringInConfigFile(tmpStr, "SHA1");
            //轉換成小寫形式
            tmpStr = tmpStr.ToLower();
            //比對成功返回
            if (tmpStr == signature)
            {
                return true;
            }
            else
            {
                return false;
            }
        }

 /// <summary>
        /// 點擊關注平台后，主動發送給用戶關注后的消息推送
        /// </summary>
        /// <param name="requestXML"></param>
        private void SendWelComeMsg(RequestXML requestXML)
        {
            String responseContent = String.Empty;

            string newdate = DateTime.Now.Subtract(new DateTime(1970, 1, 1, 8, 0, 0)).TotalSeconds.ToString();

            string PUrlfileName = "";
            string companyName = "";
            string description = "";
            string companywebsite = "";

            //獲取使用中的微信配置信息
            WeChatConfigService wcf = new WeChatConfigService();
            WeChatConfigInfo wcfInfo = wcf.GetWeChatConfigInfoByInUse();
            if (wcfInfo != null)
            {
                //初始化微信配置信息
                PUrlfileName = WeiXinServer.GetpostUrl().ToString() + "/img/focus/" + wcfInfo.focus_Image.ToString();
                companyName = wcfInfo.wechat_Name.ToString();
                description = wcfInfo.description.ToString();
                companywebsite = wcfInfo.company_website.ToString();
            }

            responseContent = string.Format(Message_News_Main, requestXML.FromUserName, requestXML.ToUserName, newdate, "1",
                string.Format(Message_News_Item, "歡迎關注" + companyName, description, PUrlfileName, companywebsite));


            HttpContext.Current.Response.ContentType = "text/xml";
            HttpContext.Current.Response.ContentEncoding = Encoding.UTF8;
            HttpContext.Current.Response.Write(responseContent);
        }