C#微信接口之推送模板消息功能示例

public string SendTempletMessge()
{
   string strReturn = string.Empty;
   try
   {
     #region 获取access_token
     string apiurl = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=你的appid&secret=你的secret";
     WebRequest request = WebRequest.Create(@apiurl);
     request.Method = "POST";
     WebResponse response = request.GetResponse();
     Stream stream = response.GetResponseStream();
     Encoding encode = Encoding.UTF8;
     StreamReader reader = new StreamReader(stream, encode);
     string detail = reader.ReadToEnd();
     var jd = JsonConvert.DeserializeObject<WXApi>(detail);
     string token = (String)jd.access_token;
     #endregion
     #region 组装信息推送，并返回结果（其它模版消息于此类似）
     string url = "https://api.weixin.qq.com/cgi-bin/message/template/send?access_token=" + token;
     string temp = "{"touser": "" + UserInfo.OpenID + ""," +
            ""template_id": "f3kRRjJeyLDf4tndtg-OJeRvgEdgjjDxCy4T9kuwM70", " +
            ""topcolor": "#FF0000", " +
            ""data": " +
            "{"first": {"value": "您好，您有一条回款通知信息"}," +
            ""keyword1": { "value": "单位名称"}," +
            ""keyword2": { "value": "日期"}," +
            ""keyword3": { "value": "金额"}," +
            ""keyword4": { "value": "业务员"}," +
            ""remark": {"value": "" }}}";
     #endregion
   //核心代码
   GetResponseData(temp, @url);
     strReturn = "推送成功";
   }
   catch (Exception ex)
   {
    strReturn = ex.Message;
   }
   return strReturn;
}
/// <summary>
/// 返回JSon数据
/// </summary>
/// <param name="JSONData">要处理的JSON数据</param>
/// <param name="Url">要提交的URL</param>
/// <returns>返回的JSON处理字符串</returns>
public string GetResponseData(string JSONData, string Url)
{
   byte[] bytes = Encoding.UTF8.GetBytes(JSONData);
   HttpWebRequest request = (HttpWebRequest)WebRequest.Create(Url);
   request.Method = "POST";
   request.ContentLength = bytes.Length;
   request.ContentType = "json";
   Stream reqstream = request.GetRequestStream();
   reqstream.Write(bytes, 0, bytes.Length);
   //声明一个HttpWebRequest请求
   request.Timeout = 90000;
   //设置连接超时时间
   request.Headers.Set("Pragma", "no-cache");
   HttpWebResponse response = (HttpWebResponse)request.GetResponse();
   Stream streamReceive = response.GetResponseStream();
   Encoding encoding = Encoding.UTF8;
   StreamReader streamReader = new StreamReader(streamReceive, encoding);
   string strResult = streamReader.ReadToEnd();
   streamReceive.Dispose();
   streamReader.Dispose();
   return strResult;
}

public class WXApi
{
  public string access_token { set; get; }
}