touser": "UserID1|UserID2|UserID3",

   "toparty": " PartyID1 | PartyID2 ",

   "totag": " TagID1 | TagID2 ",

   "msgtype": "text",

   "agentid": "1",

    /// <summary>

    /// 企業(yè)號發(fā)送消息的基礎(chǔ)消息內(nèi)容

    /// </summary>

    public class CorpSendBase

    {      

        /// <summary>

        /// UserID列表（消息接收者，多個接收者用‘|’分隔）。特殊情況：指定為@all，則向關(guān)注該企業(yè)應(yīng)用的全部成員發(fā)送

        /// </summary>

        public string touser { get; set; }

        /// <summary>

        /// PartyID列表，多個接受者用‘|’分隔。當(dāng)touser為@all時忽略本參數(shù)

        /// </summary>

        public string toparty { get; set; }

        /// <summary>

        /// TagID列表，多個接受者用‘|’分隔。當(dāng)touser為@all時忽略本參數(shù)

        /// </summary>

        public string totag { get; set; }

        /// <summary>

        /// 消息類型

        /// </summary>

        public string msgtype { get; set; }

        /// <summary>

        /// 企業(yè)應(yīng)用的id，整型。可在應(yīng)用的設(shè)置頁面查看

        /// </summary>

        public string agentid { get; set; }

        /// <summary>

        /// 表示是否是保密消息，0表示否，1表示是，默認0

        /// </summary>

        [JsonProperty(NullValueHandling = NullValueHandling.Ignore)]

        public string safe { get; set; }

    }

    /// <summary>

    /// 企業(yè)號消息管理接口定義

    /// </summary>

    public interface ICorpMessageApi

    {        

        /// <summary>

        /// 發(fā)送消息。

        /// 需要管理員對應(yīng)用有使用權(quán)限，對收件人touser、toparty、totag有查看權(quán)限，否則本次調(diào)用失敗。

        /// </summary>

        /// <param name="accessToken"></param>

        /// <returns></returns>

        CommonResult SendMessage(string accessToken, CorpSendBase data);

    }

    /// <summary>

    /// 企業(yè)號消息管理實現(xiàn)類

    /// </summary>

    public class CorpMessageApi : ICorpMessageApi

    {

        /// <summary>

        /// 發(fā)送消息。

        /// 需要管理員對應(yīng)用有使用權(quán)限，對收件人touser、toparty、totag有查看權(quán)限，否則本次調(diào)用失敗。

        /// </summary>

        /// <param name="accessToken"></param>

        /// <returns></returns>

        public CommonResult SendMessage(string accessToken, CorpSendBase data)

        {        

            CommonResult result = new CommonResult();

            string urlFormat = "https://qyapi.weixin.qq.com/cgi-bin/message/send?access_token={0}";

            var url = string.Format(urlFormat, accessToken);

            var postData = data.ToJson();

            //數(shù)據(jù)不用加密發(fā)送

            CorpSendResult sendResult = CorpJsonHelper<CorpSendResult>.ConvertJson(url, postData);

            if (sendResult != null)

            {

                result.Success = (sendResult.errcode == CorpReturnCode.請求成功);

                result.ErrorMessage = string.Format("invaliduser:{0},invalidparty:{1},invalidtag:{2}",

                    sendResult.invaliduser, sendResult.invalidparty, sendResult.invalidtag);

            }

            return result;

        }

    }

        private void btnSendText_Click(object sender, EventArgs e)

        {

            //發(fā)送文本內(nèi)容

            ICorpMessageApi bll = new CorpMessageApi();

            CorpSendText text = new CorpSendText("API 中文測試(http://www.iqidi.com)");

            text.touser = "wuhuacong";

            text.toparty = "4";//部門ID

            text.totag = "0";

            text.safe = "0";

            text.agentid = "0";

            CommonResult result = bll.SendMessage(token, text);

            if (result != null)

            {

                Console.WriteLine("發(fā)送消息:{0} {1} {2}", text.text.content, (result.Success ? "成功" : "失敗"), result.ErrorMessage);

            }

        }

        private void btnSendImage_Click(object sender, EventArgs e)

        {

            btnUpload_Click(sender, e);

            if (!string.IsNullOrEmpty(image_mediaId))

            {

                //發(fā)送圖片內(nèi)容

                ICorpMessageApi bll = new CorpMessageApi();

                CorpSendImage image = new CorpSendImage(image_mediaId);

                CommonResult result = bll.SendMessage(token, image);

                if (result != null)

                {

                    Console.WriteLine("發(fā)送圖片消息:{0} {1} {2}", image_mediaId, (result.Success ? "成功" : "失敗"), result.ErrorMessage);

                }

            }

        }