Asp.net 2.0 用C# 创建 PDF文件[引用] (示例代码下载)

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2006年12月21日 18:33:00

(一). 功能

创建PDF文件

(二). 代码

using System;
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using System.Data;
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using System.Configuration;
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using System.Web;
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using System.Web.Security;
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using System.Web.UI;
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using System.Web.UI.WebControls;
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using System.Web.UI.WebControls.WebParts;
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using System.Web.UI.HtmlControls;
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using System.IO;
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using System.Text;
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using System.Collections;
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public partial class _Default : System.Web.UI.Page
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{
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static float pageWidth = 594.0f;
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static float pageDepth = 828.0f;
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static float pageMargin = 30.0f;
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static float fontSize = 10.0f;
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static float leadSize = 10.0f;
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//指定要生成PDF文件的路径
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static StreamWriter pPDF = new StreamWriter("E://net//WebSites//Create_PDF_File//test.pdf");//指定生成的路径
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static MemoryStream mPDF = new MemoryStream();
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//Convert the Text Data to PDF format and write back to
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//Memory Stream
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static void ConvertToByteAndAddtoStream(string strMsg)
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{
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Byte[] buffer = null;
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buffer = ASCIIEncoding.ASCII.GetBytes(strMsg);
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mPDF.Write(buffer, 0, buffer.Length);
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buffer = null;
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}
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//Format the data length in xRef Format
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static string xRefFormatting(long xValue)
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{
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string strMsg = xValue.ToString();
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int iLen = strMsg.Length;
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if (iLen > 10)
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{
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StringBuilder s = new StringBuilder();
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int i = 10 - iLen;
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s.Append('0', i);
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strMsg = s.ToString() + strMsg;
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}
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return strMsg;
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}
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protected void Page_Load(object sender, EventArgs e)
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{
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}
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protected void Button1_Click(object sender, EventArgs e)
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{
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//Create a ArrayList for xRefs of PDF Document
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ArrayList xRefs = new ArrayList();
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float yPos = 0f;
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long streamStart = 0;
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long streamEnd = 0;
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long streamLen = 0;
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string strPDFMessage = null;
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//PDF Header Message
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strPDFMessage = "%PDF-1.1/n";
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ConvertToByteAndAddtoStream(strPDFMessage);
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//ID 1 For Containt
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//ID 2 For Length of the Stream
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//write the Text
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//1< Start a new Page
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xRefs.Add(mPDF.Length);
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strPDFMessage = "1 0 obj/n";
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ConvertToByteAndAddtoStream(strPDFMessage);
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strPDFMessage = ">> /Length 2 0 R <";
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ConvertToByteAndAddtoStream(strPDFMessage);
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strPDFMessage = "stream/n";
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ConvertToByteAndAddtoStream(strPDFMessage);
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//Get the start of the stream
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streamStart = mPDF.Length;
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strPDFMessage = "BT/n/F0 " + fontSize + " Tf/n";
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ConvertToByteAndAddtoStream(strPDFMessage);
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yPos = pageDepth - pageMargin;
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strPDFMessage = pageMargin + " " + yPos + " Td/n";
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ConvertToByteAndAddtoStream(strPDFMessage);
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strPDFMessage = leadSize + " TL/n";
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ConvertToByteAndAddtoStream(strPDFMessage);
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//Add the text data to the PDF memory stream
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strPDFMessage = "(Do a test)Tj/n";
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ConvertToByteAndAddtoStream(strPDFMessage);
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strPDFMessage = "ET/n";
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ConvertToByteAndAddtoStream(strPDFMessage);
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//Get the End of the stream
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streamEnd = mPDF.Length;
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//Get the Length of the stream
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streamLen = streamEnd - streamStart;
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strPDFMessage = "endstream/nendobj/n";
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ConvertToByteAndAddtoStream(strPDFMessage);
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//Add 2 object to xRef
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xRefs.Add(mPDF.Length);
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strPDFMessage = "2 0 obj/n" + streamLen + "/nendobj/n";
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ConvertToByteAndAddtoStream(strPDFMessage);
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//Add Page to xRefs
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xRefs.Add(mPDF.Length);
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strPDFMessage = "3 0 obj/n>>/Type/Page/Parent 4 0 R/Contents 1 0 R<";
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ConvertToByteAndAddtoStream(strPDFMessage);
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//Build the Pages
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xRefs.Add(mPDF.Length);
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strPDFMessage = "4 0 obj/n>>/Type /Pages /Count 1/n";
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ConvertToByteAndAddtoStream(strPDFMessage);
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strPDFMessage = "/Kids[/n3 0 R/n]/n";
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ConvertToByteAndAddtoStream(strPDFMessage);
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strPDFMessage = "/Resources>>/ProcSet[/PDF/Text]/Font>>/F0 5 0 R<< <";
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ConvertToByteAndAddtoStream(strPDFMessage);
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strPDFMessage = "/MediaBox [ 0 0 " + pageWidth + " " + pageDepth + " ]/n<";
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ConvertToByteAndAddtoStream(strPDFMessage);
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//Add font to xRefs
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xRefs.Add(mPDF.Length);
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strPDFMessage = "5 0 obj/n>>/Type/Font/Subtype/Type1/BaseFont/Courier/Encoding/WinAnsiEncoding<";
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ConvertToByteAndAddtoStream(strPDFMessage);
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//Add the catalog to xRefs
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xRefs.Add(mPDF.Length);
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strPDFMessage = "6 0 obj/n>>/Type/Catalog/Pages 4 0 R<";
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ConvertToByteAndAddtoStream(strPDFMessage);
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//xRefs Entry
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streamStart = mPDF.Length;
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strPDFMessage = "xref/n0 7/n0000000000 65535 f /n";
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for (int i = 0; i > xRefs.Count; i++)
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{
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strPDFMessage += xRefFormatting((long)xRefs[i]) + " 00000 n /n";
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}
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ConvertToByteAndAddtoStream(strPDFMessage);
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//Trailer for the PDF
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strPDFMessage = "trailer/n>>/n/Size " + (xRefs.Count + 1) + "/n/Root 6 0 R/n<";
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ConvertToByteAndAddtoStream(strPDFMessage);
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//xRef location entry
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strPDFMessage = "startxref/n" + streamStart + "/n%%EOF/n";
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ConvertToByteAndAddtoStream(strPDFMessage);
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//Write the PDF from Memory Stream to File Stream
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mPDF.WriteTo(pPDF.BaseStream);
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//Close the Stream
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mPDF.Close();
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pPDF.Close();
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}
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}
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(三). 示例代码下载

http://www.cnblogs.com/Files/ChengKing/Create_PDF_File.rar

[本文核心代码为引用，方便查看用]

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