网页快照
HtmlToImg.cs
using System;
using System.Drawing;
using System.Threading;
using System.Windows.Forms;
/// <summary>
/// 生成网页快照
/// </summary>
{
Bitmap m_Bitmap;
string m_Url;
int m_BrowserWidth, m_BrowserHeight, m_ThumbnailWidth, m_ThumbnailHeight;
public HtmlToImg(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;
}
publicstaticBitmap GetHtmlToImg(string Url, int BrowserWidth, int BrowserHeight, int ThumbnailWidth, int ThumbnailHeight)
{
HtmlToImg thumbnailGenerator = newHtmlToImg(Url, BrowserWidth, BrowserHeight, ThumbnailWidth, ThumbnailHeight);
return thumbnailGenerator.GenerateHtmlToImgImage();
}
publicBitmap GenerateHtmlToImgImage()
{
Thread m_thread = newThread(newThreadStart(_GenerateHtmlToImgImage));
m_thread.SetApartmentState(ApartmentState.STA);
m_thread.Start();
m_thread.Join();
return m_Bitmap;
}
privatevoid _GenerateHtmlToImgImage()
{
WebBrowser m_WebBrowser = newWebBrowser();
m_WebBrowser.ScrollBarsEnabled = false;
m_WebBrowser.Navigate(m_Url);
m_WebBrowser.DocumentCompleted += newWebBrowserDocumentCompletedEventHandler(WebBrowser_DocumentCompleted);
while (m_WebBrowser.ReadyState != WebBrowserReadyState.Complete)
Application.DoEvents();
搜企业(www.soqiye.cn)
m_WebBrowser.Dispose();
}
privatevoid WebBrowser_DocumentCompleted(object sender, WebBrowserDocumentCompletedEventArgs e)
{
WebBrowser m_WebBrowser = (WebBrowser)sender;
m_WebBrowser.ClientSize = newSize(this.m_BrowserWidth, this.m_BrowserHeight);
m_WebBrowser.ScrollBarsEnabled = false;
m_Bitmap = newBitmap(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);
}
}
调用方法:
Bitmap bmp = HtmlToImg.GetHtmlToImg("http://www.baidu.com/", 800, 600, 800, 600);
MemoryStream stream = newMemoryStream();
bmp.Save(stream, System.Drawing.Imaging.ImageFormat.Jpeg);
byte[] buff = stream.ToArray();
//直接显示图片
//Response.ContentType = "image/Jpeg";
//Response.BinaryWrite(buff);
//Response.End();
//保存图片
FileStream fs = newFileStream(Server.MapPath(DateTime.Now.Date.ToShortDateString() + ".jpg"), FileMode.Create);
stream.WriteTo(fs);
stream.Close();
fs.Close();