微信公共平台开发-（.net实现）2--ACCESSTOKEN值获得

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

    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;
             }
         }

因为后边的大部分操作基本都要根据你的值来操作的。暂时先写这么多吧，明天继续