钉钉消息推送

1、获取配置文件内的注册信息

public static string appkey = ConfigurationManager.AppSettings["Appkey"];
public static string appsecret = ConfigurationManager.AppSettings["Appsecret"];
public static string agentId = ConfigurationManager.AppSettings["AgentId"];

2、声明全局变量

public DateTime? datetime = null;//判断token是否过期
public string access_token = null;//会话token
public string chatid = null;//会话Id

3、获取token

/// <summary>
/// 获取会话token
/// </summary>
/// <returns></returns> 
public void GetToKen()
{
    try
    {
        #region 根据微应用的key和secret获取token
        IDingTalkClient gettokenclient = new DefaultDingTalkClient("https://oapi.dingtalk.com/gettoken");
        OapiGettokenRequest gettokenreq = new OapiGettokenRequest();
        gettokenreq.Appkey = appkey;
        gettokenreq.Appsecret = appsecret;
        gettokenreq.SetHttpMethod("GET");
        OapiGettokenResponse gettokenrsp = gettokenclient.Execute(gettokenreq, access_token);
        dynamic jsonModel = JsonConvert.DeserializeObject(gettokenrsp.Body);
        access_token = jsonModel.access_token;
        datetime = DateTime.Now;
        #endregion
    }
    catch (Exception err)
    {
        throw;
    }
}

4、根据会话token获取企业群Id

/// <summary>
/// 根据token获取企业群Id
/// </summary>
public void GetChatIdforToken()
{
    if (string.IsNullOrWhiteSpace(access_token))
       GetToKen();

    IDingTalkClient client = new DefaultDingTalkClient("https://oapi.dingtalk.com/department/get");
    OapiDepartmentGetRequest req = new OapiDepartmentGetRequest();
    req.Id = "1";
    req.SetHttpMethod("GET");
    OapiDepartmentGetResponse rsp = client.Execute(req, access_token);
    //Console.WriteLine(rsp.Body);
    dynamic jsonModel = JsonConvert.DeserializeObject(rsp.Body);
    chatid = jsonModel.deptGroupChatId;
}

5、推送消息

/// <summary>
/// 发送消息
/// </summary>
/// <param name="title">消息标题</param>
/// <param name="msg">消息内容</param>
public void SendMessage(string title,string msg)
{
    DateTime dateTime = DateTime.Now;
    if (datetime == null)//初次加载
    {
        GetToKen();
    }
    else
    {
        TimeSpan sp = dateTime.Subtract(Convert.ToDateTime(datetime));

        if (sp.Seconds > 7000)//token过期
            GetToKen();
    }

    if (string.IsNullOrWhiteSpace(access_token))
        GetToKen();

    if (string.IsNullOrWhiteSpace(chatid))
        GetChatIdforToken();

    #region 推送信息
    IDingTalkClient client = new DefaultDingTalkClient("https://oapi.dingtalk.com/chat/send");
    OapiChatSendRequest req = new OapiChatSendRequest();
    req.Chatid = chatid;
    req.Msgtype = "markdown";
    OapiChatSendRequest.MarkdownDomain obj1 = new OapiChatSendRequest.MarkdownDomain();
    obj1.Title = title;
    obj1.Text = msg;
    req.Markdown_ = obj1;
    OapiChatSendResponse rsp = client.Execute(req, access_token);
    #endregion
}

钉钉消息推送

原文：https://www.cnblogs.com/Worknotes/p/14436261.html