. NET automatically acquires tokens,

. NET to get tokens automatically,

I'll just slice it, and the whole code behind it can be copied to your project,

I'm a little stupid, but I don't have any problems.

--------------------------------------------------------------Copy from below---------------------------------------------------- --

Using System; Using System.Collections.Generic; Using System.IO; Using System.Linq; Using System.Net; Using System.Text; Using System.Web; Using System.Web.Script.Serialization; Using Wechat.models;

Namespace Wechat.dal {

public class Wechatcommon {#region get Access_token

<summary>//Token//</summary> private static string _access_token {get; set; }///<summary>///time, used to determine whether or not to update the///</summary> private static int _datetime = 0;

       //<summary>        // Access_token, get once per hour        //</summary>          private static string Access_token         {             Get              {               // Second judgment prevents multiple applications                 if (_ DateTime! = DateTime.Now.Hour)                  {                     _datetime = DateTime.Now.Hour;                     if (Getaccess_token ())                          return _access_ Token                      Else                          return null;                }                  Else                      return _access_token;            }        }         #endregion

        #region Get Access_token        // <summary>        //return Access_token         //</summary>        //<returns></returns>          private static string Returnaccess_token ()          {           //first time judgment, token is refreshed once per hour, with lock              if (_datetime! = DateTime.Now.Hour)              {                 Lock (Access_token)                  {                    return access_token;                }             }              return _access_token;

}

<summary>//Get Getaccess_token//</summary>//<returns>Access_token<             /returns> private static bool Getaccess_token () {String Secret = "";             String APPID = ""; The URL string Uri =string. Format (@ "Https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid={0}&secret={1}", Appid,secret);

           //initializing HTTP requests              HttpWebRequest request = Httpwebrequest.create (URI) as HttpWebRequest;             request. method = "GET";//Request Methods             requests. AllowAutoRedirect = false;//Prohibit redirection

           //Get the information returned              using (WebResponse web = Request. GetResponse ())             {                 StreamReader reader = new StreamReader (web. GetResponseStream (), Encoding.UTF8);                 string json = reader. ReadToEnd ();                 JavaScriptSerializer JS = new JavaScriptSerializer ();                 Access_token Access_ token = js. Deserialize<access_token> (JSON);

                if (access_ Token.errcode! = "41004" && access_token.errcode! = null)                  {                     _access_token = Access_token.access_token;                      return true;                }                  Else                      return false;

}         }

#endregion}}

-------------------------------------------------------------------------------------------------------

. NET automatically acquires tokens,