C# webBrowser 获取cookies 设置cookies

C# webBrowser 获取cookies 设置cookies

[DllImport("wininet.dll", CharSet = CharSet.Auto, SetLastError = true)]
internal static extern bool InternetGetCookieEx(string pchURL, string pchCookieName, StringBuilder pchCookieData, ref System.UInt32 pcchCookieData, int dwFlags, IntPtr lpReserved);

[DllImport("wininet.dll", CharSet = CharSet.Auto, SetLastError = true)]
internal static extern int InternetSetCookieEx(string lpszURL, string lpszCookieName, string lpszCookieData, int dwFlags, IntPtr dwReserved);

public static string GetCookies(string url)
{
    uint datasize = 256;
    StringBuilder cookieData = new StringBuilder((int)datasize);
    if (!InternetGetCookieEx(url, null, cookieData, ref datasize, 0x2000, IntPtr.Zero))
    {
        if (datasize < 0)
            return null;
        cookieData = new StringBuilder((int)datasize);
        if (!InternetGetCookieEx(url, null, cookieData, ref datasize, 0x00002000, IntPtr.Zero))
            return null;
    }
    return cookieData.ToString();
}

//获取cookies
private void WebBrowser1_DocumentCompleted(object sender, WebBrowserDocumentCompletedEventArgs e)
{
    if (webBrowser1.DocumentText.Contains(str))
    {
        string cookies = GetCookies(url);
    }
}

//设置cookies
InternetSetCookie(url, null, new Cookie(HttpUtility.UrlEncode("JSESSIONID"), JSESSIONID, "", "/").ToString());