微信公共平台开发2 .net

 成功的走出第一步后,我们紧接着趁热打铁开始下一步: 

  成为了开发者之后微信平台会给您AppId和AppSecret,在订阅号中是没有的,所以因该申请一下服务号,

  若没有请注意上一篇http://www.cnblogs.com/QLJ1314/p/3837952.html  成为开发者

    有了ACCESSTOKEN才能做添加菜单,上传/下载图片等功能

    所以这次还要借用一下大哥的代码了,上代码:

 原文出处: http://blog.csdn.net/hemeng1980/article/details/19502455

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private string GetToken() 
     
   
         // 也可以这样写: 
         //return  GetPage("https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=你的appid&secret=你的secret", ""); 
          
         string res = ""
         HttpWebRequest req = (HttpWebRequest)HttpWebRequest.Create("https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential 
&appid=你的appid&secret=你的secret"); 
 req.Method = "GET"
         using (WebResponse wr = req.GetResponse()) 
         
             HttpWebResponse myResponse = (HttpWebResponse)req.GetResponse(); 
   
   
             StreamReader reader = new StreamReader(myResponse.GetResponseStream(), Encoding.UTF8); 
   
   
             string content = reader.ReadToEnd(); 
      
             List<ACCESSTOKEN> myACCESSTOKEN = Json.JSONStringToList<ACCESSTOKEN>(content); 
             res = myACCESSTOKEN[0].access_token; 
    
         }      
   
         return res; 
     
     public string GetPage(string posturl, string postData) 
     
         Stream outstream = null
         Stream instream = null
         StreamReader sr = null
         HttpWebResponse response = null
         HttpWebRequest request = null
         Encoding encoding = Encoding.UTF8; 
         byte[] data = encoding.GetBytes(postData); 
         // 准备请求... 
         try 
         
             // 设置参数 
             request = WebRequest.Create(posturl) as HttpWebRequest; 
             CookieContainer cookieContainer = new CookieContainer(); 
             request.CookieContainer = cookieContainer; 
             request.AllowAutoRedirect = true
             request.Method = "POST"
             request.ContentType = "application/x-www-form-urlencoded"
             request.ContentLength = data.Length; 
             outstream = request.GetRequestStream(); 
             outstream.Write(data, 0, data.Length); 
             outstream.Close(); 
             //发送请求并获取相应回应数据 
             response = request.GetResponse() as HttpWebResponse; 
             //直到request.GetResponse()程序才开始向目标网页发送Post请求 
             instream = response.GetResponseStream(); 
             sr = new StreamReader(instream, encoding); 
             //返回结果网页(html)代码 
             string content = sr.ReadToEnd(); 
             string err = string.Empty; 
             return content; 
         
         catch (Exception ex) 
         
             string err = ex.Message; 
             Response.Write(err); 
             return string.Empty; 
         
     }  
原文地址:https://www.cnblogs.com/klsw/p/4790197.html