1、前提條件
1）公眾號是服務號，不是訂閱號
2）開通消息模板（功能-->添加功能插件-->消息模板）
3）打開消息模板，在模板庫添加模板到我的模板，也可以自定義模板（可支持3個）
2、發送微信模板消息給用戶（用戶需關注公眾號）
2.1）http請求方法
/// <summary> /// 后台發送POST請求 /// </summary> /// <param name="url">服務器地址</param> /// <param name="data">發送的數據</param> /// <returns></returns> public string HttpPost(string url, string data) { try { //創建post請求 HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url); request.Method = "POST"; request.ContentType = "application/json;charset=UTF-8"; byte[] payload = Encoding.UTF8.GetBytes(data); request.ContentLength = payload.Length; //發送post的請求 Stream writer = request.GetRequestStream(); writer.Write(payload, 0, payload.Length); writer.Close(); //接受返回來的數據 HttpWebResponse response = (HttpWebResponse)request.GetResponse(); Stream stream = response.GetResponseStream(); StreamReader reader = new StreamReader(stream, Encoding.UTF8); string value = reader.ReadToEnd(); reader.Close(); stream.Close(); response.Close(); return value; } catch (Exception) { return ""; } } /// <summary> /// 后台發送GET請求 /// </summary> /// <param name="url">服務器地址</param> /// <param name="data">發送的數據</param> /// <returns></returns> public string HttpGet(string url, string data) { try { //創建Get請求 url = url + (data == "" ? "" : "?") + data; HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url); request.Method = "GET"; request.ContentType = "text/html;charset=UTF-8"; //接受返回來的數據 HttpWebResponse response = (HttpWebResponse)request.GetResponse(); Stream stream = response.GetResponseStream(); StreamReader streamReader = new StreamReader(stream, Encoding.GetEncoding("utf-8")); string retString = streamReader.ReadToEnd(); streamReader.Close(); stream.Close(); response.Close(); return retString; } catch (Exception) { return ""; } }
2.2）微信接口方法
/// <summary> /// 獲取基礎支持的accessToken /// </summary> /// <param name="appid">公眾號憑證ID</param> /// <param name="secret">公眾號憑證密碼</param> /// <returns></returns> public string GetBaseAcccessToken(string appid, string secret) { string accessToken = string.Empty; string reqUrl = string.Format(@"https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid={0}&secret={1}", appid, secret); string resultStr = HttpGet(reqUrl,""); dynamic data = JsonConvert.DeserializeObject(resultStr); if (data["access_token"] != null) { accessToken = data["access_token"].ToString(); } else { accessToken = ""; } return accessToken; } /// <summary> /// 發送微信的模板信息到用戶的Openid(用戶關注公眾號的唯一標識) /// </summary> /// <param name="msgTempId">消息模板Id</param> /// <param name="openId">微信OpenId</param> /// <param name="firstInfo">提示信息</param> /// <param name="keyword1">參數1信息</param> /// <param name="keyword2">參數2信息</param> /// <param name="keyword3">參數3信息</param> /// <param name="keyword4">參數4信息</param> /// <param name="keyword5">參數5信息</param> /// <param name="endInfo">備注信息</param> public bool SendWxMessageToUser(string msgTempId,string openId, string firstInfo,string keyword1, string keyword2, string keyword3, string keyword4, string keyword5, string endInfo) { bool IsSuccess = false; //獲取配置文件中參數（公眾號ID,密碼， 發送模板消息ID） var appid = ConfigurationManager.AppSettings["AppID"].ToString(); var secret = ConfigurationManager.AppSettings["AppSecret"].ToString(); // var msgTempId = ConfigurationManager.AppSettings["MsgTemplateId"].ToString(); //獲取基礎支持的accessToken string reqAccessToken = GetBaseAcccessToken(appid,secret); //找不到aceessToken(調用失敗) if (string.IsNullOrEmpty(reqAccessToken)) { IsSuccess = false; SynLog.Info(string.Format(ErrorLogMsg, "SendWxMessageToUser", "微信發送消息失敗，原因：未找到微信令牌accessToken！")); } else { //組成請求的json數據 JObject reqObj = new JObject( new JProperty("touser", openId), new JProperty("template_id",msgTempId), new JProperty("data",new JObject( new JProperty("first",new JObject { new JProperty("value", firstInfo),new JProperty("color", "#173177") }), new JProperty("keyword1", new JObject { new JProperty("value", keyword1), new JProperty("color", "#173177") }), new JProperty("keyword2", new JObject { new JProperty("value", keyword2), new JProperty("color", "#173177") }), new JProperty("keyword3", new JObject { new JProperty("value", keyword3), new JProperty("color", "#173177") }), new JProperty("keyword4", new JObject { new JProperty("value", keyword4), new JProperty("color", "#173177") }), new JProperty("keyword5", new JObject { new JProperty("value", keyword5), new JProperty("color", "#173177") }), new JProperty("remark", new JObject { new JProperty("value", endInfo), new JProperty("color", "#173177") }) )) ); //序列化轉成json格式字符串 var jsonStr = JsonConvert.SerializeObject(reqObj); //請求url string reqUrl = string.Format(@"https://api.weixin.qq.com/cgi-bin/message/template/send?access_token={0}", reqAccessToken); string resultStr = HttpPost(reqUrl,jsonStr); //反序列化成對象 dynamic result = JsonConvert.DeserializeObject(resultStr); if (result["errmsg"].ToString() == "ok") { IsSuccess = true; SynLog.Info(string.Format(SuccessLogMsg, "SendWxMessageToUser", "微信發送消息成功！")); } else { IsSuccess = false; SynLog.Info(string.Format(ErrorLogMsg, "SendWxMessageToUser", "微信發送消息失敗！")); } } return IsSuccess; }
2.3）調用微信接口方法
2.4）發送消息結果（在公眾號查看）
注明：由於用模板庫中的模板，列的值可能對不上，因為申請自定義模板（未審批），先用有的模板測試。