C#开发微信门户及应用(19)-微信企业号的消息发送（文本、图片、文件、语音、视频、图文消息等）
2021-07-22 17:56:14

    touser": "UserID1|UserID2|UserID3",
   "toparty": " PartyID1 | PartyID2 ",
   "totag": " TagID1 | TagID2 ",
   "msgtype": "text",
   "agentid": "1",

    /// <summary>
    /// 企业号发送消息的基础消息内容
    /// </summary>
    public class CorpSendBase
    {      
        /// <summary>
        /// UserID列表（消息接收者，多个接收者用‘|’分隔）。特殊情况：指定为@all，则向关注该企业应用的全部成员发送
        /// </summary>
        public string touser { get; set; }

        /// <summary>
        /// PartyID列表，多个接受者用‘|’分隔。当touser为@all时忽略本参数
        /// </summary>
        public string toparty { get; set; }

        /// <summary>
        /// TagID列表，多个接受者用‘|’分隔。当touser为@all时忽略本参数
        /// </summary>
        public string totag { get; set; }

        /// <summary>
        /// 消息类型
        /// </summary>
        public string msgtype { get; set; }

        /// <summary>
        /// 企业应用的id，整型。可在应用的设置页面查看
        /// </summary>
        public string agentid { get; set; }

        /// <summary>
        /// 表示是否是保密消息，0表示否，1表示是，默认0
        /// </summary>
        [JsonProperty(NullValueHandling = NullValueHandling.Ignore)]
        public string safe { get; set; }

    }

    /// <summary>
    /// 企业号消息管理接口定义
    /// </summary>
    public interface ICorpMessageApi
    {        
        /// <summary>
        /// 发送消息。
        /// 需要管理员对应用有使用权限，对收件人touser、toparty、totag有查看权限，否则本次调用失败。
        /// </summary>
        /// <param name="accessToken"></param>
        /// <returns></returns>
        CommonResult SendMessage(string accessToken, CorpSendBase data);
    }

    /// <summary>
    /// 企业号消息管理实现类
    /// </summary>
    public class CorpMessageApi : ICorpMessageApi
    {
        /// <summary>
        /// 发送消息。
        /// 需要管理员对应用有使用权限，对收件人touser、toparty、totag有查看权限，否则本次调用失败。
        /// </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();

            //数据不用加密发送
            CorpSendResult sendResult = CorpJsonHelper<CorpSendResult>.ConvertJson(url, postData);
            if (sendResult != null)
            {
                result.Success = (sendResult.errcode == CorpReturnCode.请求成功);
                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)
        {
            //发送文本内容
            ICorpMessageApi bll = new CorpMessageApi();

            CorpSendText text = new CorpSendText("API 中文测试(http://www.iqidi.com)");
            text.touser = "wuhuacong";
            text.toparty = "4";//部门ID
            text.totag = "0";

            text.safe = "0";
            text.agentid = "0";

            CommonResult result = bll.SendMessage(token, text);
            if (result != null)
            {
                Console.WriteLine("发送消息:{0} {1} {2}", text.text.content, (result.Success ? "成功" : "失败"), result.ErrorMessage);
            }
        }
        private void btnSendImage_Click(object sender, EventArgs e)
        {
            btnUpload_Click(sender, e);

            if (!string.IsNullOrEmpty(image_mediaId))
            {
                //发送图片内容
                ICorpMessageApi bll = new CorpMessageApi();

                CorpSendImage image = new CorpSendImage(image_mediaId);
                CommonResult result = bll.SendMessage(token, image);
                if (result != null)
                {
                    Console.WriteLine("发送图片消息:{0} {1} {2}", image_mediaId, (result.Success ? "成功" : "失败"), result.ErrorMessage);
                }
            }
        }