總體思路：
1.首先必須要在微信公眾平臺上申請一個公眾號。
2.然后進行模擬登陸。（由于我對http傳輸原理和編程不是特別懂，在模擬登陸的地方，不是特別清楚，希望有大神指教）
3.模擬登陸后會獲得一個token（令牌）和cookie。
4.因為模擬登陸后相當于就進入了微信公眾平臺，在這個里面就可以抓取到需要的數據，如公眾好友的昵稱，fakeId。其中的fakeid非常重要，因為傳輸數據必須要知道對方的fakeid。
5.知道對方的fakeid就可以進行數據的發送了。
這里是整個項目的源碼下載：http://http://xiazai.VeVB.COm/201309/yuanma/webchat.rar
不過里面還有一些小問題，希望有人繼續修改和討論！也有人說這樣會被封號，所以請謹慎操作
講一下我項目里面的主要內容
1.WeiXinLogin.cs類是用來執行登陸功能的
//對密碼進行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();
}
//執行登陸操作
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 ";//請求登錄的URL
try
{
CookieContainer cc = new CookieContainer();//接收緩存
byte[] byteArray = Encoding.UTF8.GetBytes(padata); // 轉化
HttpWebRequest webRequest2 = (HttpWebRequest)WebRequest.Create(url); //新建一個WebRequest對象用來請求或者響應url
webRequest2.CookieContainer = cc; //保存cookie
webRequest2.Method = "POST"; //請求方式是POST
webRequest2.ContentType = "application/x-www-form-urlencoded"; //請求的內容格式為application/x-www-form-urlencoded
webRequest2.ContentLength = byteArray.Length;
Stream newStream = webRequest2.GetRequestStream(); //返回用于將數據寫入 Internet 資源的 Stream。
// Send the data.
newStream.Write(byteArray, 0, byteArray.Length); //寫入參數
newStream.Close();
HttpWebResponse response2 = (HttpWebResponse)webRequest2.GetResponse();
StreamReader sr2 = new StreamReader(response2.GetResponseStream(), Encoding.Default);
string text2 = sr2.ReadToEnd();
//此處用到了newtonsoft來序列化
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>
/// 登錄后得到的令牌
/// </summary>
public static string Token { get; set; }
/// <summary>
/// 登錄后得到的cookie
/// </summary>
public static CookieContainer LoginCookie { get; set; }
/// <summary>
/// 創建時間
/// </summary>
public static DateTime CreateDate { get; set; }
}
2.在WeiXin.cs類中實現發送數據
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); //對傳遞過來的信息進行url編碼
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); // 轉化
HttpWebRequest webRequest2 = (HttpWebRequest)WebRequest.Create(url);
webRequest2.CookieContainer = cookie; //登錄時得到的緩存
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); //寫入參數
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;
}
3.SendMessage.aspx.cs中主要實現獲取fakeid
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
/*獲取用戶信息的url，這里有幾個參數給大家講一下，1.token此參數為上面的token 2.pagesize此參數為每一頁顯示的記錄條數
3.pageid為當前的頁數，4.groupid為微信公眾平臺的用戶分組的組id，當然這也是我的猜想不一定正確*/
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;
//由于此方法獲取過來的信息是一個html網頁所以此處使用了正則表達式，注意：（此正則表達式只是獲取了fakeid的信息如果想獲得一些其他的信息修改此處的正則表達式就可以了。）
Regex r = new Regex("/"fakeId/"http://s//://s/"http://d+/""); //定義一個Regex對象實例
mc = r.Matches(text2);
Int32 friendSum = mc.Count; //好友總數
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);
}
}
