• http://www.cnblogs.com/freeliver54/p/3725979.html
• http://www.it165.net/pro/html/201402/9459.html

• 这些代码也就开始认证的时候用一次，以后就不用了：

  view sourceprint?

  01.const string Token = "XXXXX";//你的token

  02.protected void Page_Load(object sender, EventArgs e)

  03.{

  04.string postStr = "";

  05.if (Request.HttpMethod.ToLower() == "post")

  06.{

  07.System.IO.Stream s = System.Web.HttpContext.Current.Request.InputStream;

  08.byte[] b = new byte[s.Length];

  09.s.Read(b, 0, (int)s.Length);

  10.postStr = System.Text.Encoding.UTF8.GetString(b);

  11.if (!string.IsNullOrEmpty(postStr))

  12.{

  13.//ResponseMsg(postStr);

  14.Response.Write(ResponseMsg(postStr));

  15.Response.End();

  16.}

  17.//WriteLog("postStr:" + postStr);

  18.}

  19.else

  20.{

  21.Valid();

  22.}

  23.}    

  24. 

  25./// <summary>

  26./// 验证微信签名

  27./// </summary>

  28./// * 将token、timestamp、nonce三个参数进行字典序排序

  29./// * 将三个参数字符串拼接成一个字符串进行sha1加密

  30./// * 开发者获得加密后的字符串可与signature对比，标识该请求来源于微信。

  31./// <returns></returns>

  32.private bool CheckSignature()

  33.{

  34.string signature = Request.QueryString["signature"].ToString();

  35.string timestamp = Request.QueryString["timestamp"].ToString();

  36.string nonce = Request.QueryString["nonce"].ToString();

  37.string[] ArrTmp = { Token, timestamp, nonce };

  38.Array.Sort(ArrTmp);     //字典排序

  39.string tmpStr = string.Join("", ArrTmp);

  40.tmpStr = FormsAuthentication.HashPass<a href=http://www.mamicode.com/"http://www.it165.net/edu/ebg/" target="_blank" class="keylink">word</a>ForStoringInConfigFile(tmpStr, "SHA1");

  41.tmpStr = tmpStr.ToLower();

  42.if (tmpStr == signature)

  43.{

  44.return true;

  45.}

  46.else

  47.{

  48.return false;

  49.}

  50.}

  51. 

  52. 

  53.private void Valid()

  54.{

  55.string echoStr = Request.QueryString["echoStr"].ToString();

  56.if (CheckSignature())

  57.{

  58.if (!string.IsNullOrEmpty(echoStr))

  59.{

  60.Response.Write(echoStr);

  61.Response.End();

  62.}

  63.}

  64.}    

  65. 

  66. 

  67./// <summary>

  68./// 写日志(用于跟踪)

  69./// </summary>

  70.private void WriteLog(string strMemo)

  71.{

  72.string filename = Server.MapPath("/logs/log.txt");

  73.if (!Directory.Exists(Server.MapPath("//logs//")))

  74.Directory.CreateDirectory("//logs//");

  75.StreamWriter sr = null;

  76.try

  77.{

  78.if (!File.Exists(filename))

  79.{

  80.sr = File.CreateText(filename);

  81.}

  82.else

  83.{

  84.sr = File.AppendText(filename);

  85.}

  86.sr.WriteLine(strMemo);

  87.}

  88.catch

  89.{

  90. 

  91.}

  92.finally

  93.{

  94.if (sr != null)

  95.sr.Close();

  96.}

  97.}
  
  

微信公共服务平台开发（.Net的实现）1 认证“成为开发者”