.net自动获取token，

 .NET自动获取Token，

我就直接上图片了，后面是完整代码，可以复制到你的项目，

我这个方法有点笨，但是没有任何问题

   

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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 获取Access_token

        /// <summary>         /// Token         /// </summary>         private static string _access_token { get; set; }         /// <summary>         /// 时间,用来判断是否该更新了         /// </summary>         private static int _datetime = 0;

        /// <summary>         /// Access_token,每个小时获取一次         /// </summary>         private static string Access_token         {             get             {                 //第二次判断防止多次申请                 if (_datetime != DateTime.Now.Hour)                 {                     _datetime = DateTime.Now.Hour;                     if (GetAccess_token())                         return _access_token;                     else                         return null;                 }                 else                     return _access_token;             }         }         #endregion

        #region 获取Access_token         /// <summary>         /// 返回Access_token         /// </summary>         /// <returns></returns>         private static string ReturnAccess_token()         {             //第一次判断，每小时刷新一次Token，此处带锁             if (_datetime != DateTime.Now.Hour)             {                 lock (Access_token)                 {                     return Access_token;                 }             }             return _access_token;

        }

        /// <summary>         /// 获取GetAccess_token         /// </summary>         /// <returns>Access_token</returns>         private static bool GetAccess_token()         { string Secret = "";             string APPID = "";             //url             string uri =string.Format( @"https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid={0}&secret={1}",APPID,Secret);

            //初始化http请求             HttpWebRequest request = HttpWebRequest.Create(uri) as HttpWebRequest;             request.Method = "GET";//请求方法             request.AllowAutoRedirect = false;//禁止重定向

            //获取返回的信息             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     } }

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