网站模拟登录问题~~~~

Question

   我现在要模拟登录网站，从网上找许多代码都不好用   有谁做过详细介绍下啊~~~~   

Answer 1

http://topic.csdn.net/u/20110320/11/0e904c7e-1ae7-4e89-bc3e-26f6e87f8fcc.html

Answer 2

基本方法：public static string RequestUrl(string strUrl, 
                                Dictionary<string, string> postData, 
                                ref CookieContainer objCookieContainer)
{
    HttpWebRequest req = (HttpWebRequest)WebRequest.Create(strUrl);
    req.Method = "POST";
    req.KeepAlive = true;
    req.ContentType = "application/x-www-form-urlencoded";
    //req.Timeout = 20;    if (objCookieContainer == null)
        objCookieContainer = new CookieContainer();    req.CookieContainer = objCookieContainer;
        
    req.ContentLength = 0;
    if (postData != null && postData.Count > 0)
    {
        StringBuilder objEncodedPostDatas = new StringBuilder();
        foreach (var kv in postData)
        {
            objEncodedPostDatas.Append(HttpUtility.UrlEncode(kv.Key));
            objEncodedPostDatas.Append("=");
            objEncodedPostDatas.Append(HttpUtility.UrlEncode(kv.Value));
            objEncodedPostDatas.Append("&");
        }
            
        byte[] byteData = Encoding.UTF8.GetBytes(objEncodedPostDatas.ToString().TrimEnd('&'));
        req.ContentLength = byteData.Length;
        using (Stream reqStream = req.GetRequestStream())
        {
            reqStream.Write(byteData, 0, byteData.Length);
        }
    }    var strResponse = "";
    using (HttpWebResponse res = (HttpWebResponse)req.GetResponse())
    {
        objCookieContainer = req.CookieContainer;
        using (Stream resStream = res.GetResponseStream())
        {
            using (StreamReader sr = new StreamReader(resStream, Encoding.UTF8))
            {
                strResponse = sr.ReadToEnd();
            }
        }
    }
    return strResponse;
}调用：string uriStr = "http://xxxx/login.aspx";
string strId = "用户名";
string strPassword = "密码";var postData = new Dictionary<string, string>();
postData.Add("控件ID1", strId);
postData.Add("控件ID2", strPassword);
CookieContainer cc = new CookieContainer();
var response = RequestUrl(uriStr, postData, ref cc);

Answer 3

fangxinggood您好：
        string uriStr = "http://my.chinahr.com/login.aspx?ReturnUrl=%2findex.aspx";
        string strId = "[email protected]";
        string strPassword = "123456abc";        Dictionary<string, string> postData = new Dictionary<string, string>();
        postData.Add("LoginModule_ascx$tbUserName", strId);
        postData.Add("LoginModule_ascx$tbPassword", strPassword);
        CookieContainer cc = new CookieContainer();
        string response = RequestUrl(uriStr, postData, ref cc);
        Response.Write(response);上面是我调用写的代码，最后还是停留在登录页，帮忙看看啊

Answer 4

再加一个方法，用于GET
public static string RequestUrl(string strUrl, ref CookieContainer objCookieContainer)
{
    HttpWebRequest req = (HttpWebRequest)WebRequest.Create(strUrl);
    req.Method = "GET";
    req.CookieContainer = objCookieContainer;
    using (HttpWebResponse res = (HttpWebResponse)req.GetResponse())
    {
        using (Stream resStream = res.GetResponseStream())
        {
            objCookieContainer = req.CookieContainer;
            using (StreamReader sr = new StreamReader(resStream, Encoding.UTF8))
            {
                return sr.ReadToEnd();
            }
        }
    }
}

Answer 5

调用：
string url = "http://my.chinahr.com/login.aspx?ReturnUrl=%2findex.aspx";
CookieContainer cc = new CookieContainer();
// 第一次GET请求，获取cookie
RequestUrl(url, ref cc);string strId = "[email protected]";
string strPassword = "123456abc";
Dictionary<string, string> postData = new Dictionary<string, string>();
postData.Add("LoginModule_ascx$tbUserName", strId);
postData.Add("LoginModule_ascx$tbPassword", strPassword);
postData.Add("LoginModule_ascx$btnLogin", "登录");string response = RequestUrl(url, postData, ref cc);
if (response.Contains("正在处理中，请您稍等..."))
    Console.WriteLine("login success");string urlIndex = "http://my.chinahr.com/index.aspx";
response = RequestUrl(urlIndex, ref cc);

Answer 6

fangxinggood 非常感谢！！！

Answer 7

登陆之后 如果点击退出按钮 那么 再登陆的时候 就 不能跳转了 就能到 登陆页 是不是 要给 Cookie 设定时间！