//对密码进行MD5加密  static string GetMd5Str32(string str)     {         MD5CryptoServiceProvider md5Hasher = new MD5CryptoServiceProvider();         // Convert the input string to a byte array and compute the hash.          char[] temp = str.ToCharArray();         byte[] buf = new byte[temp.Length];         for (int i = 0; i < temp.Length; i++)         {             buf[i] = (byte)temp[i];         }         byte[] data = md5Hasher.ComputeHash(buf);         // Create a new Stringbuilder to collect the bytes          // and create a string.          StringBuilder sBuilder = new StringBuilder();         // Loop through each byte of the hashed data           // and format each one as a hexadecimal string.          for (int i = 0; i < data.Length; i++)         {             sBuilder.Append(data[i].ToString("x2"));         }         // Return the hexadecimal string.          return sBuilder.ToString();     } //执行登陆操作     public static bool ExecLogin(string name,string pass)     {         bool result = false;         string password = GetMd5Str32(pass).ToUpper();         string padata = "username=" + name + "&pwd=" + password + "&imgcode=&f=json";         string url = "http://mp.weixin.qq.com/cgi-bin/login?lang=zh_CN ";//请求登录的URL         try         {             CookieContainer cc = new CookieContainer();//接收缓存             byte[] byteArray = Encoding.UTF8.GetBytes(padata); // 转化             HttpWebRequest webRequest2 = (HttpWebRequest)WebRequest.Create(url);  //新建一个WebRequest对象用来请求或者响应url             webRequest2.CookieContainer = cc;                                      //保存cookie              webRequest2.Method = "POST";                                          //请求方式是POST             webRequest2.ContentType = "application/x-www-form-urlencoded";       //请求的内容格式为application/x-www-form-urlencoded             webRequest2.ContentLength = byteArray.Length;             Stream newStream = webRequest2.GetRequestStream();           //返回用于将数据写入 Internet 资源的 Stream。             // Send the data.             newStream.Write(byteArray, 0, byteArray.Length);    //写入参数             newStream.Close();             HttpWebResponse response2 = (HttpWebResponse)webRequest2.GetResponse();             StreamReader sr2 = new StreamReader(response2.GetResponseStream(), Encoding.Default);             string text2 = sr2.ReadToEnd();             //此处用到了newtonsoft来序列化             WeiXinRetInfo retinfo = Newtonsoft.Json.JsonConvert.DeserializeObject<WeiXinRetInfo>(text2);             string token = string.Empty;             if (retinfo.ErrMsg.Length > 0)             {                 token = retinfo.ErrMsg.Split(new char[] { '&' })[2].Split(new char[] { '=' })[1].ToString();//取得令牌                 LoginInfo.LoginCookie = cc;                 LoginInfo.CreateDate = DateTime.Now;                 LoginInfo.Token = token;                 result = true;             }         }         catch (Exception ex)         {             throw new Exception(ex.StackTrace);         }         return result;     }     public static class LoginInfo     {         /// <summary>         /// 登录后得到的令牌         /// </summary>                public static string Token { get; set; }         /// <summary>         /// 登录后得到的cookie         /// </summary>         public static CookieContainer LoginCookie { get; set; }         /// <summary>         /// 创建时间         /// </summary>         public static DateTime CreateDate { get; set; }     }

public static bool SendMessage(string Message, string fakeid)     {         bool result = false;         CookieContainer cookie = null;         string token = null;         cookie = WeiXinLogin.LoginInfo.LoginCookie;//取得cookie         token =  WeiXinLogin.LoginInfo.Token;//取得token         string strMsg = System.Web.HttpUtility.UrlEncode(Message);  //对传递过来的信息进行url编码         string padate = "type=1&content=" + strMsg + "&error=false&tofakeid=" + fakeid + "&token=" + token + "&ajax=1";         string url = "https://mp.weixin.qq.com/cgi-bin/singlesend?t=ajax-response&lang=zh_CN";         byte[] byteArray = Encoding.UTF8.GetBytes(padate); // 转化         HttpWebRequest webRequest2 = (HttpWebRequest)WebRequest.Create(url);         webRequest2.CookieContainer = cookie; //登录时得到的缓存         webRequest2.Referer = "https://mp.weixin.qq.com/cgi-bin/singlemsgpage?token=" + token + "&fromfakeid=" + fakeid + "&msgid=&source=&count=20&t=wxm-singlechat&lang=zh_CN";         webRequest2.Method = "POST";         webRequest2.UserAgent = "Mozilla/5.0 (Windows NT 5.1; rv:2.0.1) Gecko/20100101 Firefox/4.0.1";         webRequest2.ContentType = "application/x-www-form-urlencoded";         webRequest2.ContentLength = byteArray.Length;         Stream newStream = webRequest2.GetRequestStream();         // Send the data.                    newStream.Write(byteArray, 0, byteArray.Length);    //写入参数            newStream.Close();         HttpWebResponse response2 = (HttpWebResponse)webRequest2.GetResponse();         StreamReader sr2 = new StreamReader(response2.GetResponseStream(), Encoding.Default);         string text2 = sr2.ReadToEnd();         if (text2.Contains("ok"))         {             result = true;         }         return result;     }

public static ArrayList SubscribeMP()     {         try         {             CookieContainer cookie = null;             string token = null;             cookie = WeiXinLogin.LoginInfo.LoginCookie;//取得cookie             token = WeiXinLogin.LoginInfo.Token;//取得token             /*获取用户信息的url，这里有几个参数给大家讲一下，1.token此参数为上面的token 2.pagesize此参数为每一页显示的记录条数             3.pageid为当前的页数，4.groupid为微信公众平台的用户分组的组id，当然这也是我的猜想不一定正确*/             string Url = "https://mp.weixin.qq.com/cgi-bin/contactmanagepage?t=wxm-friend&token=" + token + "&lang=zh_CN&pagesize=10&pageidx=0&type=0&groupid=0";             HttpWebRequest webRequest2 = (HttpWebRequest)WebRequest.Create(Url);             webRequest2.CookieContainer = cookie;             webRequest2.ContentType = "text/html; charset=UTF-8";             webRequest2.Method = "GET";             webRequest2.UserAgent = "Mozilla/5.0 (Windows NT 5.1; rv:2.0.1) Gecko/20100101 Firefox/4.0.1";             webRequest2.ContentType = "application/x-www-form-urlencoded";             HttpWebResponse response2 = (HttpWebResponse)webRequest2.GetResponse();             StreamReader sr2 = new StreamReader(response2.GetResponseStream(), Encoding.Default);             string text2 = sr2.ReadToEnd();             MatchCollection mc;             //由于此方法获取过来的信息是一个html网页所以此处使用了正则表达式，注意：（此正则表达式只是获取了fakeid的信息如果想获得一些其他的信息修改此处的正则表达式就可以了。）              Regex r = new Regex("\"fakeId\"\\s\\:\\s\"\\d+\""); //定义一个Regex对象实例             mc = r.Matches(text2);             Int32 friendSum = mc.Count;          //好友总数             string fackID ="";             ArrayList fackID1 = new ArrayList();             for (int i = 0; i < friendSum; i++)             {                 fackID = mc[i].Value.Split(new char[] { ':' })[1];                 fackID = fackID.Replace("\"", "").Trim();                 fackID1.Add(fackID);             }             return fackID1;    }         catch (Exception ex)         {             throw new Exception(ex.StackTrace);         }     }