/// <summary>/// 获取accessToken/// </summary>/// <param name="corpid">ID</param>/// <param name="corpsecret">密钥</param>/// <returns></returns>static string GetQYAccessToken(string corpid, string corpsecret){string getAccessTokenUrl = "https://qyapi.weixin.qq.com/cgi-bin/gettoken?corpid={0}&corpsecret={1}";string accessToken = "";string respText = "";//获取josn数据string url = string.Format(getAccessTokenUrl, corpid, corpsecret);HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url);HttpWebResponse response = (HttpWebResponse)request.GetResponse();using (Stream resStream = response.GetResponseStream()){StreamReader reader = new StreamReader(resStream, Encoding.Default);respText = reader.ReadToEnd();resStream.Close();}try{JavaScriptSerializer Jss = new JavaScriptSerializer();Dictionary<string, object> respDic = (Dictionary<string, object>)Jss.DeserializeObject(respText);//通过键access_token获取值accessToken = respDic["access_token"].ToString();}catch (Exception ex) { }return accessToken;}

/// <summary>/// Post数据接口/// </summary>/// <param name="postUrl">接口地址</param>/// <param name="paramData">提交json数据</param>/// <param name="dataEncode">编码方式</param>/// <returns></returns>static string PostWebRequest(string postUrl, string paramData, Encoding dataEncode){string ret = string.Empty;try{byte[] byteArray = dataEncode.GetBytes(paramData); //转化HttpWebRequest webReq = (HttpWebRequest)WebRequest.Create(new Uri(postUrl));webReq.Method = "POST";webReq.ContentType = "application/x-www-form-urlencoded";webReq.ContentLength = byteArray.Length;Stream newStream = webReq.GetRequestStream();newStream.Write(byteArray, 0, byteArray.Length);//写入参数newStream.Close();HttpWebResponse response = (HttpWebResponse)webReq.GetResponse();StreamReader sr = new StreamReader(response.GetResponseStream(), Encoding.UTF8);ret = sr.ReadToEnd();sr.Close();response.Close();newStream.Close();}catch (Exception ex){return ex.Message;}return ret;}