<%@ WebHandler Language="C#" Class="WeixinInterface" %>using System;using System.Web;public class WeixinInterface : IHttpHandler{    HttpContext context = null;    string postStr = "";    public void ProcessRequest(HttpContext param_context)    {        context = param_context;        //以写日志为荣,以打断点为耻.        //WriteLog("before valid \n");        //valid();//用于验证        //WriteLog("after valid, before post \n");        if (context.Request.HttpMethod.ToLower() == "post")        {            System.IO.Stream s = context.Request.InputStream;            byte[] b = new byte[s.Length];            s.Read(b, 0, (int)s.Length);            postStr = System.Text.Encoding.UTF8.GetString(b);            if (!string.IsNullOrEmpty(postStr))            {                responseMsg(postStr);            }            //WriteLog("-------AfterResponseMsg:-------\n" + postStr);        }    }    public void valid()    {        var echostr = context.Request["echoStr"].ToString();        if (checkSignature() && !string.IsNullOrEmpty(echostr))        {            context.Response.Write(echostr);            context.Response.End();//推送...不然微信平台无法验证token        }    }    public bool checkSignature()    {        var signature = context.Request["signature"].ToString();        var timestamp = context.Request["timestamp"].ToString();        var nonce = context.Request["nonce"].ToString();        var token = "faketoken";        string[] ArrTmp = { token, timestamp, nonce };        Array.Sort(ArrTmp);     //字典排序        string tmpStr = string.Join("", ArrTmp);        tmpStr = System.Web.Security.FormsAuthentication.HashPasswordForStoringInConfigFile(tmpStr, "SHA1");        tmpStr = tmpStr.ToLower();        if (tmpStr == signature)        {            return true;        }        else        {            return false;        }    }    public string GetSha1(System.Collections.Generic.List
    
      codelist)    {        codelist.Sort();        var combostr = string.Empty;        for (int i = 0; i < codelist.Count; i++)        {            combostr += codelist[i];        }        return EncryptToSHA1(combostr);    }    public string EncryptToSHA1(string str)    {        System.Security.Cryptography.SHA1CryptoServiceProvider sha1 = new System.Security.Cryptography.SHA1CryptoServiceProvider();        byte[] str1 = System.Text.Encoding.UTF8.GetBytes(str);        byte[] str2 = sha1.ComputeHash(str1);        sha1.Clear();        (sha1 as IDisposable).Dispose();        return Convert.ToBase64String(str2);    }    public void responseMsg(string postStr)    {        System.Xml.XmlDocument postObj = new System.Xml.XmlDocument();        postObj.LoadXml(postStr);        WriteLog("responseMsg:-------" + postStr);        var FromUserNameList = postObj.GetElementsByTagName("FromUserName");        string FromUserName = string.Empty;        for (int i = 0; i < FromUserNameList.Count; i++)        {            if (FromUserNameList[i].ChildNodes[0].NodeType == System.Xml.XmlNodeType.CDATA)            {                FromUserName = FromUserNameList[i].ChildNodes[0].Value;            }        }        var toUsernameList = postObj.GetElementsByTagName("ToUserName");        string ToUserName = string.Empty;        for (int i = 0; i < toUsernameList.Count; i++)        {            if (toUsernameList[i].ChildNodes[0].NodeType == System.Xml.XmlNodeType.CDATA)            {                ToUserName = toUsernameList[i].ChildNodes[0].Value;            }        }        var keywordList = postObj.GetElementsByTagName("Content");        string Content = string.Empty;        for (int i = 0; i < keywordList.Count; i++)        {            if (keywordList[i].ChildNodes[0].NodeType == System.Xml.XmlNodeType.CDATA)            {                Content = keywordList[i].ChildNodes[0].Value;            }        }        var time = DateTime.Now;        var textpl = "
     
      
      " +            "
      
      " +            "
      
       " + ConvertDateTimeInt(DateTime.Now) + "
      
      
      " +            "
      
      
      
       0
      
      ";        context.Response.Write(textpl);        context.Response.End();    }        private DateTime UnixTimeToTime(string timeStamp)    {        DateTime dtStart = TimeZone.CurrentTimeZone.ToLocalTime(new DateTime(1970, 1, 1));        long lTime = long.Parse(timeStamp + "0000000");        TimeSpan toNow = new TimeSpan(lTime);        return dtStart.Add(toNow);    }    private int ConvertDateTimeInt(System.DateTime time)    {        System.DateTime startTime = TimeZone.CurrentTimeZone.ToLocalTime(new System.DateTime(1970, 1, 1));        return (int)(time - startTime).TotalSeconds;    }    private void WriteLog(string strMemo)    {        string filename = "D:/WEBHOME/logs/log.txt";        if (!System.IO.Directory.Exists("D:/WEBHOME/logs/"))            System.IO.Directory.CreateDirectory("D:/WEBHOME/logs/");        System.IO.StreamWriter sr = null;        try        {            if (!System.IO.File.Exists(filename))            {                sr = System.IO.File.CreateText(filename);            }            else            {                sr = System.IO.File.AppendText(filename);            }            sr.WriteLine(strMemo);        }        catch        {        }        finally        {            if (sr != null)                sr.Close();        }    }    public bool IsReusable    {        get        {            return false;        }    }}
    

 

1.如果是为了验证微信接口的token是否通过, 将valid注释去掉

2.如果要返回给用户值, 注释掉valid