HTML轉PDF頁面內容太大怎么分頁？
public void writeLog(string sMessage)
{
//FileStream fs = new FileStream(Server.MapPath("pagetohtml.htm"), FileMode.Append);
try
{
StreamWriter swriter = File.CreateText(Server.MapPath("pagetohtml.htm"));
swriter.WriteLine(sMessage);
swriter.Close();
}
catch
{ }
}
private System.Drawing.Bitmap bitmap;
private string url;
private int w = 760, h = 900;
public void setBitmap()
{
using (WebBrowser wb = new WebBrowser())
{
wb.Width = w;
wb.Height = h;
wb.ScrollBarsEnabled = false;
wb.Navigate(url);
//確保頁面被解析完全
while (wb.ReadyState != WebBrowserReadyState.Complete)
{
System.Windows.Forms.Application.DoEvents();
}
bitmap = new System.Drawing.Bitmap(w, h);
wb.DrawToBitmap(bitmap, new System.Drawing.Rectangle(0, 0, w, h));
wb.Dispose();
}
}
private void CreatPdf()
{
Document doc = new Document(PageSize.A4, 9, 18, 36, 36);//左右上下
MemoryStream ms = new MemoryStream();
try
{
PdfWriter writer = PdfWriter.GetInstance(doc, ms);
writer.CloseStream = false;
doc.Open();
url = Server.MapPath("pagetohtml.htm");
Thread thread = new Thread(new ThreadStart(setBitmap));
thread.SetApartmentState(ApartmentState.STA);
thread.Start();
while (thread.IsAlive)
Thread.Sleep(100);
bitmap.Save(Server.MapPath("pagetohtml.bmp"));
iTextSharp.text.Image img = iTextSharp.text.Image.GetInstance(bitmap, System.Drawing.Imaging.ImageFormat.Bmp);
img.ScalePercent(75);//560 630
doc.Add(img);
}
catch (Exception err)
{
throw new Exception(err.Message);
}
finally
{
doc.Close();
using (FileStream fs = new FileStream(Server.MapPath("pagetohtml.pdf"), FileMode.Create))
{
ms.Position = 0;
byte[] bit = new byte[ms.Length];
ms.Read(bit, 0, (int)ms.Length);
fs.Write(bit, 0, bit.Length);
}
ViewPdf(ms);
}
}
private void ViewPdf(Stream fs)
{
Response.Clear();
//中文名的話
//Response.AppendHeader("Content-Disposition", "attachment;filename=" +
// HttpUtility.UrlEncode(fileName, System.Text.Encoding.UTF8) + ";charset=GB2312");
Response.AddHeader("Content-Disposition", "attachment;FileName=pagetohtml.pdf");
Response.AddHeader("Content-Length", fs.Length.ToString());
Response.ContentType = "application/pdf";
long fileLength = fs.Length;
int size = 10240;
byte[] readData = new byte[size];
if (size > fileLength)
size = Convert.ToInt32(fileLength);
long fPos = 0;
bool isEnd = false;
while (!isEnd)
{
if ((fPos + size) >= fileLength)
{
size = Convert.ToInt32(fileLength - fPos);
isEnd = true;
}
readData = new byte[size];
fs.Position = fPos;
fs.Read(readData, 0, size);
Response.BinaryWrite(readData);
Response.OutputStream.Flush();
fPos += size;
}
fs.Close();
Response.OutputStream.Close();
Response.End();
Response.Close();
}
