/// <summary>

 /// 获取access_token

 /// </summary>

 /// <returns></returns>

 public static string GetAccessToken()

 {

     string token = string.Empty;

     try

     {

         # 微信小程序接口

         string wechatapi = ConfigurationManager.AppSettings["wechatapi"].ToString();

         string appID = ConfigurationManager.AppSettings["AppID"].ToString();

         string appSecret = ConfigurationManager.AppSettings["AppSecret"].ToString();

         //获取微信token

         string token_url = "cgi-bin/token?grant_type=client_credential&appid=" + appID + "&secret=" + appSecret;

         var operateResult = LzWebAPICaller.Get<obxxxxject>(wechatapi token_url).ToString();

         HttpWebRequest myRequest = (HttpWebRequest)WebRequest.Create(token_url);

         //请求方式

         myRequest.Method = "GET";

         HttpWebResponse myResponse = (HttpWebResponse)myRequest.GetResponse();

         StreamReader reader = new StreamReader(myResponse.GetResponseStream() Encoding.UTF8);

         string content = reader.ReadToEnd();

         myResponse.Close();

         reader.Dispose();

         javascriptSerializer serializer = new javascriptSerializer();

         token = serializer.Deserialize<string>(content);

     }

     catch (Exception ex)

     {

         token = "";

         ExceptionPolicy.HandleException(ex LZExceptionType.System

           "获取token失败!源:Lz.Product.LJXQJGF.BLL.Resident.ResidentLogic.GetAccessToken方法出错 ");

     }

     return token;

 }