直接上代码：
以下代码为公众号发送模板消息的后台处理：
public RequestResult SendMessage(string body) { //获取公众号token string serviceAddress = "https://api.weixin.qq.com/cgi-bin/token?appid=&secret=&grant_type=client_credential"; HttpWebRequest request = (HttpWebRequest)WebRequest.Create(serviceAddress); request.Method = "GET"; request.ContentType = "application/json"; HttpWebResponse response = (HttpWebResponse)request.GetResponse(); Stream myResponseStream = response.GetResponseStream(); StreamReader myStreamReader = new StreamReader(myResponseStream, Encoding.UTF8); string retString = myStreamReader.ReadToEnd(); myStreamReader.Close(); myResponseStream.Close(); //公众号接口返回的参数转换到WeChatToken类（WeChatToken是自己定义的一个类） WeChatToken weChatToken = JsonConvert.DeserializeObject<WeChatToken>(retString); //发送模板消息 Encoding encoding = Encoding.UTF8; string sendAddress = "https://api.weixin.qq.com/cgi-bin/message/template/send?access_token=" + weChatToken.access_token; HttpWebRequest sendrequest = (HttpWebRequest)WebRequest.Create(sendAddress); sendrequest.Method = "POST"; sendrequest.ContentType = "application/json"; //body为模板消息的模板内容，格式一定要正确 byte[] buffer = encoding.GetBytes(body); sendrequest.ContentLength = buffer.Length; sendrequest.GetRequestStream().Write(buffer, 0, buffer.Length); HttpWebResponse sendresponse = (HttpWebResponse)sendrequest.GetResponse(); Stream sendmyResponseStream = sendresponse.GetResponseStream(); StreamReader sendmyStreamReader = new StreamReader(sendmyResponseStream, Encoding.UTF8); string sendretString = sendmyStreamReader.ReadToEnd(); sendmyStreamReader.Close(); sendmyResponseStream.Close(); return new RequestResult() { IsSucceed = true, Message = "SUCCESS", Data = sendretString }; }