public async Task <string> Post(string uriname, string title, string content, string deviceId = "UnkownDevice") { try { for (int i = 0; i < RepeatQueryCount; i++) { var handler = new HtmlCharSetHandler(); String url = IpAddress; httpClient.DefaultRequestHeaders.Accept.Clear(); httpClient.DefaultRequestHeaders.Accept.Add(new System.Net.Http.Headers.MediaTypeWithQualityHeaderValue("application/json")); //httpClient.BaseAddress = new Uri(url); url = IpAddress + uriname; List <KeyValuePair <String, String> > paramList = new List <KeyValuePair <String, String> >(); paramList.Add(new KeyValuePair <string, string>("GpContent", content)); paramList.Add(new KeyValuePair <string, string>("GpType", "类型")); paramList.Add(new KeyValuePair <string, string>("SendTime", DateTime.Now.ToString("yyyyMMddHHmmss"))); paramList.Add(new KeyValuePair <string, string>("GpTitle", title)); var response = await httpClient.PostAsync(new Uri(url), new FormUrlEncodedContent(paramList)); if (response.IsSuccessStatusCode) { string responseString = await response.Content.ReadAsStringAsync(); // 判断是否成功 if (responseString.IndexOf("GpSuccess") != -1) { return(responseString); } else { // 失败了 return(responseString); } } } } catch (Exception ex) { throw ex; } return("未知原因失败"); }