使用凭据从 Windows 窗体打开 URL答案

【问题标题】：Open a URL from a windows form with credentials使用凭据从 Windows 窗体打开 URL
【发布时间】：2013-02-07 22:22:07
【问题描述】：

我正在尝试使用用户名和密码打开一个外部网站。我有正确的凭据，但是当我尝试以下代码时，我收到“登录失败：未知用户名或密码错误”错误。

        Dim username As String = "username"
        Dim password As New System.Security.SecureString

        'Set value for SecureString type variable   
        Dim plainPassword As String = "pass"
        For Each c As String In plainPassword.ToCharArray
            password.AppendChar(c)
        Next c

        Dim IEprocess As System.Diagnostics.Process = New System.Diagnostics.Process
        IEprocess.StartInfo.FileName = "http://www.website.com/"
        IEprocess.StartInfo.UserName = username
        IEprocess.StartInfo.Password = password
        IEprocess.StartInfo.UseShellExecute = False
        IEprocess.Start()

有什么建议吗？

【问题讨论】：

标签： vb.net winforms

【解决方案1】：

如果你想登录网站，我认为最好使用 HTTP 的 POST 方法，并且你必须定义你的登录页面参数用户和密码（Php、ASP.Net、JAVA 推荐可以使用操作方法）。

Dim PostData As String = "define your action login" 'example https://login.yahoo.com/config/login_verify2?&.src=ym,username and Password parameters
    Dim bytes() As Byte = ASCIIEncoding.UTF8.GetBytes(PostData)
    Dim httpReg As HttpWebRequest = WebRequest.Create("http://www.website.com/")
    httpReg.Method = "POST"
    httpReg.KeepAlive = True
    httpReg.CookieContainer = mainCookie
    httpReg.ContentType = "application/x-www-form-urlencoded"
    httpReg.Referer = "http://www.website.com/index.html"
    httpReg.ContentLength = bytes.Length
    Dim DtStream As Stream = httpReg.GetRequestStream()
    DtStream.Write(bytes, 0, bytes.Length)
    DtStream.Close()
    Dim httpResponse As HttpWebResponse
    httpResponse = httpReg.GetResponse()
    mainCookie.Add(httpResponse.Cookies)
    Dim reader As New StreamReader(httpResponse.GetResponseStream())
    Dim strSource As String = reader.ReadToEnd
    If strSource.Contains("Selamat Datang") Then
        MessageBox.Show("Sukses Login")
    Else
        MessageBox.Show("Gagal Login")
    End If

参考文章：http://tech.reboot.pro/showthread.php?tid=61

【讨论】：