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  • ASP.NET html转图片(转http://www.cnblogs.com/imluzhi/p/5038021.html)

    using System.IO;
    using System.Drawing;
    using System.Threading;
    using System.Windows.Forms;

    public class WebSiteThumbnail
    {
    Bitmap m_Bitmap;
    string m_Url;
    int m_BrowserWidth, m_BrowserHeight, m_ThumbnailWidth, m_ThumbnailHeight;
    public WebSiteThumbnail(string Url, int BrowserWidth, int BrowserHeight, int ThumbnailWidth, int ThumbnailHeight)
    {
    m_Url = Url;
    m_BrowserHeight = BrowserHeight;
    m_BrowserWidth = BrowserWidth;
    m_ThumbnailWidth = ThumbnailWidth;
    m_ThumbnailHeight = ThumbnailHeight;
    }
    public static Bitmap GetWebSiteThumbnail(string Url, int BrowserWidth, int BrowserHeight, int ThumbnailWidth, int ThumbnailHeight)
    {
    WebSiteThumbnail thumbnailGenerator = new WebSiteThumbnail(Url, BrowserWidth, BrowserHeight, ThumbnailWidth, ThumbnailHeight);
    return thumbnailGenerator.GenerateWebSiteThumbnailImage();
    }
    public Bitmap GenerateWebSiteThumbnailImage()
    {
    Thread m_thread = new Thread(new ThreadStart(_GenerateWebSiteThumbnailImage));
    m_thread.SetApartmentState(ApartmentState.STA);
    m_thread.Start();
    m_thread.Join();
    return m_Bitmap;
    }
    private void _GenerateWebSiteThumbnailImage()
    {
    WebBrowser m_WebBrowser = new WebBrowser();
    m_WebBrowser.ScrollBarsEnabled = false;
    m_WebBrowser.Navigate(m_Url);
    m_WebBrowser.DocumentCompleted += new WebBrowserDocumentCompletedEventHandler(WebBrowser_DocumentCompleted);
    while (m_WebBrowser.ReadyState != WebBrowserReadyState.Complete)
    Application.DoEvents();
    m_WebBrowser.Dispose();
    }
    private void WebBrowser_DocumentCompleted(object sender, WebBrowserDocumentCompletedEventArgs e)
    {
    WebBrowser m_WebBrowser = (WebBrowser)sender;
    m_WebBrowser.ClientSize = new Size(this.m_BrowserWidth, this.m_BrowserHeight);
    m_WebBrowser.ScrollBarsEnabled = false;
    m_Bitmap = new Bitmap(m_WebBrowser.Bounds.Width, m_WebBrowser.Bounds.Height);
    m_WebBrowser.BringToFront();
    m_WebBrowser.DrawToBitmap(m_Bitmap, m_WebBrowser.Bounds);
    m_Bitmap = (Bitmap)m_Bitmap.GetThumbnailImage(m_ThumbnailWidth, m_ThumbnailHeight, null, IntPtr.Zero);
    }

    }


    Bitmap m_Bitmap = WebSiteThumbnail.GetWebSiteThumbnail("这里是html的连接地址", 990, 2798, 990, 2798);
    MemoryStream ms = new MemoryStream();
    m_Bitmap.Save(ms, System.Drawing.Imaging.ImageFormat.Png);//JPG、GIF、PNG等均可
    byte[] buff = ms.ToArray();
    Response.BinaryWrite(buff);

    System.Drawing.Image img = byteArrayToImage(buff);
    string url = "图片保存路径.png";
    img.Save(HttpContext.Current.Server.MapPath(url));

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  • 原文地址:https://www.cnblogs.com/hbh123/p/5102466.html
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