类似百度文库在线预览文档flash版(支持word、excel、ppt、pdf)

　　　　a.使用flashpaper将需要的文档通过简单的设置转换为SWF格式的Flash,扩展阅读：http://baike.baidu.com/view/917746.htm，不过由于我的电脑室win7，而flashpaper又不支持win7，所以只好

　　　　放弃此种方案。

　　　　b.在网上发现可以使用swftools（http://www.swftools.org/谢天谢地啊，它支持win7）将pdf格式的文件转换为flash，但是不能讲office文档转换为flash，那怎么办呢，难道这种方法又不行，可是仔

　　　　细想一下如果我们能将office文档先转换为pdf文件不就解决问题了吗,突然之间隐隐约约觉得使用office软件就可实现这一功能，于是打开word看一下究竟

　　　　一切准备工作结束以后我们就可以进行编码了

　　　　c.首先说一下swftools使用：在命令行中运行pdf2swf src.pdf des.swf一般能满足需求。然后就行主要的代码的编写（即将office文档转换为pdf文档）

　　　　编写Office2Pdf.cs类

using System;
using System.Data;
using System.Configuration;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using Word = Microsoft.Office.Interop.Word;
using Excel = Microsoft.Office.Interop.Excel;
using PowerPoint = Microsoft.Office.Interop.PowerPoint;
using Microsoft.Office.Core;

/// <summary>
/// Office2Pdf 将Office文档转化为pdf
/// </summary>
public class Office2Pdf
{
    public Office2Pdf()
    {
        //
// TODO: 在此处添加构造函数逻辑
//
    }
    /// <summary>
/// Word转换成pdf
/// </summary>
/// <param name="sourcePath">源文件路径</param>
/// <param name="targetPath">目标文件路径</param>
/// <returns>true=转换成功</returns>
    public bool DOCConvertToPDF(string sourcePath,string targetPath)
    {
        bool result = false;
        Word.WdExportFormat exportFormat = Word.WdExportFormat.wdExportFormatPDF;
        object paramMissing = Type.Missing;
        Word.ApplicationClass wordApplication = new Word.ApplicationClass();
        Word.Document wordDocument = null;
        try
        {
            object paramSourceDocPath = sourcePath;
            string paramExportFilePath = targetPath;
            Word.WdExportFormat paramExportFormat = exportFormat;
            bool paramOpenAfterExport = false;
            Word.WdExportOptimizeFor paramExportOptimizeFor = Word.WdExportOptimizeFor.wdExportOptimizeForPrint;
            Word.WdExportRange paramExportRange = Word.WdExportRange.wdExportAllDocument;
            int paramStartPage = 0;
            int paramEndPage = 0;
            Word.WdExportItem paramExportItem = Word.WdExportItem.wdExportDocumentContent;
            bool paramIncludeDocProps = true;
            bool paramKeepIRM = true;
            Word.WdExportCreateBookmarks paramCreateBookmarks = Word.WdExportCreateBookmarks.wdExportCreateWordBookmarks;
            bool paramDocStructureTags = true;
            bool paramBitmapMissingFonts = true;
            bool paramUseISO19005_1 = false;
            wordDocument = wordApplication.Documents.Open(
                ref paramSourceDocPath,ref paramMissing,ref paramMissing);
            if (wordDocument != null)
                wordDocument.ExportAsFixedFormat(paramExportFilePath,paramExportFormat,paramOpenAfterExport,paramExportOptimizeFor,paramExportRange,paramStartPage,paramEndPage,paramExportItem,paramIncludeDocProps,paramKeepIRM,paramCreateBookmarks,paramDocStructureTags,paramBitmapMissingFonts,paramUseISO19005_1,ref paramMissing);
            result = true;
        }
        catch
        {
            result = false;
        }
        finally
        {
            if (wordDocument != null)
            {
                wordDocument.Close(ref paramMissing,ref paramMissing);
                wordDocument = null;
            }
            if (wordApplication != null)
            {
                wordApplication.Quit(ref paramMissing,ref paramMissing);
                wordApplication = null;
            }
            GC.Collect();
            GC.WaitForPendingFinalizers();
            GC.Collect();
            GC.WaitForPendingFinalizers();
        }
        return result;
    }

    /// <summary>
/// 把Excel文件转换成PDF格式文件  
/// </summary>
/// <param name="sourcePath">源文件路径</param>
/// <param name="targetPath">目标文件路径</param>
/// <returns>true=转换成功</returns>
    public bool XLSConvertToPDF(string sourcePath,string targetPath)
    {
        bool result = false;
        Excel.XlFixedFormatType targetType = Excel.XlFixedFormatType.xlTypePDF;
        object missing = Type.Missing;
        Excel.ApplicationClass application = null;
        Excel.Workbook workBook = null;
        try
        {
            application = new Excel.ApplicationClass();
            object target = targetPath;
            object type = targetType;
            workBook = application.Workbooks.Open(sourcePath,missing,missing);
            workBook.ExportAsFixedFormat(targetType,target,Excel.XlFixedFormatQuality.xlQualityStandard,true,false,missing);
            result = true;
        }
        catch
        {
            result = false;
        }
        finally
        {
            if (workBook != null)
            {
                workBook.Close(true,missing);
                workBook = null;
            }
            if (application != null)
            {
                application.Quit();
                application = null;
            }
            GC.Collect();
            GC.WaitForPendingFinalizers();
            GC.Collect();
            GC.WaitForPendingFinalizers();
        }
        return result;
    }
    ///<summary>        
/// 把PowerPoint文件转换成PDF格式文件       
///</summary>        
///<param name="sourcePath">源文件路径</param>     
///<param name="targetPath">目标文件路径</param> 
///<returns>true=转换成功</returns> 
    public bool PPTConvertToPDF(string sourcePath,string targetPath)
    {
        bool result;
        PowerPoint.PpSaveAsFileType targetFileType = PowerPoint.PpSaveAsFileType.ppSaveAsPDF;
        object missing = Type.Missing;
        PowerPoint.ApplicationClass application = null;
        PowerPoint.Presentation persentation = null;
        try
        {
            application = new PowerPoint.ApplicationClass();
            persentation = application.Presentations.Open(sourcePath,MsoTriState.msoTrue,MsoTriState.msoFalse,MsoTriState.msoFalse); persentation.SaveAs(targetPath,targetFileType,Microsoft.Office.Core.MsoTriState.msoTrue);
            result = true;
        }
        catch
        {
            result = false;
        }
        finally
        {
            if (persentation != null)
            {
                persentation.Close();
                persentation = null;
            }
            if (application != null)
            {
                application.Quit();
                application = null;
            }
            GC.Collect();
            GC.WaitForPendingFinalizers();
            GC.Collect();
            GC.WaitForPendingFinalizers();
        }
        return result;
    }
}

然后编写Pdf2Swf.cs类调用命令行将pdf转换为swf格式的flash

using System;
using System.Data;
using System.Configuration;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.Diagnostics;
using System.IO;

/// <summary>
/// Pdf2Swf 将pdf转化为swf
/// </summary>
public class Pdf2Swf
{
    public Pdf2Swf()
    {
        //
// TODO: 在此处添加构造函数逻辑
//
    }
    public void PDFConvertToSWF(string sourcePath,string targetPath)
    {
        Process p = new Process();
        p.StartInfo.FileName = "cmd.exe ";
        p.StartInfo.UseShellExecute = false;
        p.StartInfo.RedirectStandardInput = true;
        p.StartInfo.RedirectStandardOutput = true;
        p.StartInfo.RedirectStandardError = true;
        p.StartInfo.CreateNoWindow = true;
        p.Start();
        string cmd = "pdf2swf.exe" + " " + sourcePath + " -o " + targetPath;
        p.StandardInput.WriteLine(cmd);
        p.Close();
    }
}

然后只需要调用这两个类就可以实现将office转换为pdf再转换为flash的功能了

　（3）最后就是实现flash的显示：这时我们还要借助工具来实现功能，那就是flexpaper,首先在网上下载所需要的flash文件、javascript文件，然后编写html代码：

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> 
<!-- saved from url=(0014)about:internet --> 
<html xmlns="http://www.w3.org/1999/xhtml" lang="en" xml:lang="en">    
    <head> 
        <title>中勤文库-Flash版</title>         
        <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> 
        <style type="text/css" media="screen"> 
            html,body    { height:100%; }
            body { margin:0; padding:0; overflow:auto; }   
            #flashContent { display:none; }
</style> 
        
        <script type="text/javascript" src="js/swfobject/swfobject.js"></script>
        <script type="text/javascript" src="js/flexpaper_flash_debug.js"></script>
        <script type="text/javascript" src="js/jquery.js"></script>
        <script>
//获得参数的方法
var request =
        {
        QueryString : function(val)
        {
var uri = window.location.search;
var re = new RegExp("" +val+ "=([^&?]*)","ig");
return ((uri.match(re))?(uri.match(re)[0].substr(val.length+1)):null);
        }
        }
</script> 
        <script type="text/javascript"> 
<!-- For version detection,set to min. required Flash Player version,or 0 (or 0.0.0),for no version detection. --> 
var swfVersionStr = "10.0.0";
<!-- To use express install,set to playerProductInstall.swf,otherwise the empty string. -->
var xiSwfUrlStr = "playerProductInstall.swf";
var swfFile = emotion;//这填写文档转换成的flash文件的路径
            
var flashvars = { 
                  SwfFile : escape(swfFile),Scale : 0.6,ZoomTransition : "eaSEOut",ZoomTime : 0.5,ZoomInterval : 0.2,FitPageOnLoad : true,FitWidthOnLoad : false,PrintEnabled : true,FullScreenAsMaxWindow : false,ProgressiveLoading : true,PrintToolsVisible : true,ViewModeToolsVisible : true,ZoomToolsVisible : true,FullScreenVisible : true,NavToolsVisible : true,CursorToolsVisible : true,SearchToolsVisible : true,localeChain: "en_US"
                  };
                  
var params = {
                
                }
            params.quality = "high";
            params.bgcolor = "#ffffff";
            params.allowscriptaccess = "sameDomain";
            params.allowfullscreen = "true";
var attributes = {};
            attributes.id = "FlexPaperViewer";
            attributes.name = "FlexPaperViewer";
            swfobject.embedSWF(
"FlexPaperViewer.swf","flashContent","730","580",swfVersionStr,xiSwfUrlStr,flashvars,params,attributes);
            swfobject.createCSS("#flashContent","display:block;text-align:left;");
            
</script>

        
    </head> 
    <body> 
        <div align="center">
            <div id="flashContent"> 
                <p> 
                    To view this page ensure that Adobe Flash Player version 
                    10.0.0 or greater is installed. 
                </p> 
                <script type="text/javascript"> 
var pageHost = ((document.location.protocol == "https:") ? "https://" :    "http://"); 
                    document.write("<a href='http://www.adobe.com/go/getflashplayer'><img src='" 
+ pageHost + "www.adobe.com/images/shared/download_buttons/get_flash_player.gif' alt='Get Adobe Flash player' /></a>" ); 
                    
</script> 
            </div>
        </div>
        
   </body> 
</html>

效果就这样：

至此为止，所有工作全部结束，大家只需要将这些代码进行整合，配合数据库使用，编写管理后台，就可以实现百度文库的效果，甚至可以投入实际使用。

源码下载：http://files.cnblogs.com/expectszc/Web.zip