类似百度文库在线预览文档flash swf文库预览

清明假期最后一天写点东西吧，明天就要上课了。最近在学习如何进行文档的在线预览。

1.首先上网搜索一下有什么解决方案 （1）.将文档转换为html，只支持支持office文档 （2）.将文档转换为flash,实现类似百度文库的效果，除支持office文档外还支持pdf

　　（1） a.首先添加引用:

using Microsoft.Office.Core;
using Word = Microsoft.Office.Interop.Word;

　　b.其次编写文档转换的方法:

 1     /// <summary>
 2     /// word转成html
 3     /// </summary>
 4     /// <param name="path">要转换的文档的路径</param>
 5     /// <param name="savePath">转换成的html的保存路径</param>
 6     /// <param name="wordFileName">转换后html文件的名字</param>
 7     private static void WordToHtml(string path,string savePath,string wordFileName)
 8     {
 9       Word.ApplicationClass word = new Word.ApplicationClass();
10         Type wordType = word.GetType();
11         Word.Documents docs = word.Documents;
12         Type docsType = docs.GetType();
13         Word.Document doc = (Word.Document)docsType.InvokeMember("Open",System.Reflection.BindingFlags.InvokeMethod,null,docs,new Object[] {(object)path,true,true });
14      Type docType = doc.GetType();
15         string strSaveFileName = savePath + wordFileName + ".html";
16         object saveFileName = (object)strSaveFileName;
17         docType.InvokeMember("SaveAs",doc,new object[] { saveFileName,Word.WdSaveFormat.wdFormatFilteredHTML });
18         docType.InvokeMember("Close",null);
19         wordType.InvokeMember("Quit",word,null);
20     }
21     /// <summary>
22     /// excel 转换为html
23 　　/// </summary>
24 　　/// <param name="path">要转换的文档的路径</param>
25 　　/// <param name="savePath">转换成的html的保存路径</param>
26 　　/// <param name="wordFileName">转换后html文件的名字</param>
27     public static void ExcelToHtml(string path,string wordFileName)
28     {
29         string str = string.Empty;
30         Microsoft.Office.Interop.Excel.Application repExcel = new Microsoft.Office.Interop.Excel.Application();
31         Microsoft.Office.Interop.Excel.Workbook workbook = null;
32         Microsoft.Office.Interop.Excel.Worksheet worksheet = null;
33         workbook = repExcel.Application.Workbooks.Open(path,Type.Missing,Type.Missing);
34         worksheet = (Microsoft.Office.Interop.Excel.Worksheet)workbook.Worksheets[1];
35         object htmlFile = savePath + wordFileName + ".html";
36         object ofmt = Microsoft.Office.Interop.Excel.XlFileFormat.xlHtml;
37         workbook.SaveAs(htmlFile,ofmt,Microsoft.Office.Interop.Excel.XlSaveAsAccessMode.xlNoChange,Type.Missing);
38         object osave = false;
39         workbook.Close(osave,Type.Missing);
40         repExcel.Quit();
41     }
42     /// <summary>
43 　　/// ppt转换为html
44 　　/// </summary>
45 　　/// <param name="path">要转换的文档的路径</param>
46 　　/// <param name="savePath">转换成的html的保存路径</param>
47 　　/// <param name="wordFileName">转换后html文件的名字</param>
48     public static void PPTToHtml(string path,string wordFileName)
49     {
50         Microsoft.Office.Interop.PowerPoint.Application ppApp = new Microsoft.Office.Interop.PowerPoint.Application();
51         string strSourceFile = path;
52         string strDestinationFile = savePath + wordFileName + ".html";
53         Microsoft.Office.Interop.PowerPoint.Presentation prsPres = ppApp.Presentations.Open(strSourceFile,Microsoft.Office.Core.MsoTriState.msoTrue,Microsoft.Office.Core.MsoTriState.msoFalse,Microsoft.Office.Core.MsoTriState.msoFalse);
54         prsPres.SaveAs(strDestinationFile,Microsoft.Office.Interop.PowerPoint.PpSaveAsFileType.ppSaveAsHTML,MsoTriState.msoTrue);
55         prsPres.Close();
56         ppApp.Quit();
57     }

　　c.接下来就是调用方法:WordToHtml(string path,string savePath,string wordFileName);ExcelToHtml(string path,string wordFileName);PPTToHtml(string path,string wordFileName)实现相应文档的转换

　　然后就可以看见效果了

WORD

PPT

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大家看一下这样的效果确实感觉挺丑的，特别是word，excel格式都没有了，这样的效果是难以满足要求的，那接下来我们就学习第二种方案。。。。

?

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　　(2).在网上搜索如何和将office文档的pdf文档转换为flash，实现在线预览，你会发现有好几种解决方案

　　　　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

　　　　

哈哈果然有，不过要先装一个插件　　　　　　　　　　　　　　　　　　

　　　　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

  1 using System;
  2 using System.Data;
  3 using System.Configuration;
  4 using System.Web;
  5 using System.Web.Security;
  6 using System.Web.UI;
  7 using System.Web.UI.WebControls;
  8 using System.Web.UI.WebControls.WebParts;
  9 using System.Web.UI.HtmlControls;
 10 using Word = Microsoft.Office.Interop.Word;
 11 using Excel = Microsoft.Office.Interop.Excel;
 12 using PowerPoint = Microsoft.Office.Interop.PowerPoint;
 13 using Microsoft.Office.Core;
 14 
 15 /// <summary>
 16 /// Office2Pdf 将Office文档转化为pdf
 17 /// </summary>
 18 public class Office2Pdf
 19 {
 20     public Office2Pdf()
 21     {
 22         //
 23 // TODO: 在此处添加构造函数逻辑
 24 //
 25     }
 26     /// <summary>
 27 /// Word转换成pdf
 28 /// </summary>
 29 /// <param name="sourcePath">源文件路径</param>
 30 /// <param name="targetPath">目标文件路径</param>
 31 /// <returns>true=转换成功</returns>
 32     public bool DOCConvertToPDF(string sourcePath,string targetPath)
 33     {
 34         bool result = false;
 35         Word.WdExportFormat exportFormat = Word.WdExportFormat.wdExportFormatPDF;
 36         object paramMissing = Type.Missing;
 37         Word.ApplicationClass wordApplication = new Word.ApplicationClass();
 38         Word.Document wordDocument = null;
 39         try
 40         {
 41             object paramSourceDocPath = sourcePath;
 42             string paramExportFilePath = targetPath;
 43             Word.WdExportFormat paramExportFormat = exportFormat;
 44             bool paramOpenAfterExport = false;
 45             Word.WdExportOptimizeFor paramExportOptimizeFor = Word.WdExportOptimizeFor.wdExportOptimizeForPrint;
 46             Word.WdExportRange paramExportRange = Word.WdExportRange.wdExportAllDocument;
 47             int paramStartPage = 0;
 48             int paramEndPage = 0;
 49             Word.WdExportItem paramExportItem = Word.WdExportItem.wdExportDocumentContent;
 50             bool paramIncludeDocProps = true;
 51             bool paramKeepIRM = true;
 52             Word.WdExportCreateBookmarks paramCreateBookmarks = Word.WdExportCreateBookmarks.wdExportCreateWordBookmarks;
 53             bool paramDocStructureTags = true;
 54             bool paramBitmapMissingFonts = true;
 55             bool paramUseISO19005_1 = false;
 56             wordDocument = wordApplication.Documents.Open(
 57                 ref paramSourceDocPath,ref paramMissing, 58                 ref paramMissing, 59                 ref paramMissing, 60                 ref paramMissing, 61                 ref paramMissing, 62                 ref paramMissing);
 63             if (wordDocument != null)
 64                 wordDocument.ExportAsFixedFormat(paramExportFilePath, 65                     paramExportFormat,paramOpenAfterExport, 66                     paramExportOptimizeFor,paramExportRange,paramStartPage, 67                     paramEndPage,paramExportItem,paramIncludeDocProps, 68                     paramKeepIRM,paramCreateBookmarks,paramDocStructureTags, 69                     paramBitmapMissingFonts,paramUseISO19005_1, 70                     ref paramMissing);
 71             result = true;
 72         }
 73         catch
 74         {
 75             result = false;
 76         }
 77         finally
 78         {
 79             if (wordDocument != null)
 80             {
 81                 wordDocument.Close(ref paramMissing,ref paramMissing);
 82                 wordDocument = null;
 83             }
 84             if (wordApplication != null)
 85             {
 86                 wordApplication.Quit(ref paramMissing,ref paramMissing);
 87                 wordApplication = null;
 88             }
 89             GC.Collect();
 90             GC.WaitForPendingFinalizers();
 91             GC.Collect();
 92             GC.WaitForPendingFinalizers();
 93         }
 94         return result;
 95     }
 96 
 97     /// <summary>
 98 /// 把Excel文件转换成PDF格式文件  
 99 /// </summary>
100 /// <param name="sourcePath">源文件路径</param>
101 /// <param name="targetPath">目标文件路径</param>
102 /// <returns>true=转换成功</returns>
103     public bool XLSConvertToPDF(string sourcePath,string targetPath)
104     {
105         bool result = false;
106         Excel.XlFixedFormatType targetType = Excel.XlFixedFormatType.xlTypePDF;
107         object missing = Type.Missing;
108         Excel.ApplicationClass application = null;
109         Excel.Workbook workBook = null;
110         try
111         {
112             application = new Excel.ApplicationClass();
113             object target = targetPath;
114             object type = targetType;
115             workBook = application.Workbooks.Open(sourcePath,missing,116                 missing,missing);
117             workBook.ExportAsFixedFormat(targetType,target,Excel.XlFixedFormatQuality.xlQualityStandard,false,missing);
118             result = true;
119         }
120         catch
121         {
122             result = false;
123         }
124         finally
125         {
126             if (workBook != null)
127             {
128                 workBook.Close(true,missing);
129                 workBook = null;
130             }
131             if (application != null)
132             {
133                 application.Quit();
134                 application = null;
135             }
136             GC.Collect();
137             GC.WaitForPendingFinalizers();
138             GC.Collect();
139             GC.WaitForPendingFinalizers();
140         }
141         return result;
142     }
143     ///<summary>        
144 /// 把PowerPoint文件转换成PDF格式文件       
145 ///</summary>        
146 ///<param name="sourcePath">源文件路径</param>     
147 ///<param name="targetPath">目标文件路径</param> 
148 ///<returns>true=转换成功</returns> 
149     public bool PPTConvertToPDF(string sourcePath,string targetPath)
150     {
151         bool result;
152         PowerPoint.PpSaveAsFileType targetFileType = PowerPoint.PpSaveAsFileType.ppSaveAsPDF;
153         object missing = Type.Missing;
154         PowerPoint.ApplicationClass application = null;
155         PowerPoint.Presentation persentation = null;
156         try
157         {
158             application = new PowerPoint.ApplicationClass();
159             persentation = application.Presentations.Open(sourcePath,MsoTriState.msoTrue,MsoTriState.msoFalse,MsoTriState.msoFalse); persentation.SaveAs(targetPath,targetFileType,Microsoft.Office.Core.MsoTriState.msoTrue);
160             result = true;
161         }
162         catch
163         {
164             result = false;
165         }
166         finally
167         {
168             if (persentation != null)
169             {
170                 persentation.Close();
171                 persentation = null;
172             }
173             if (application != null)
174             {
175                 application.Quit();
176                 application = null;
177             }
178             GC.Collect();
179             GC.WaitForPendingFinalizers();
180             GC.Collect();
181             GC.WaitForPendingFinalizers();
182         }
183         return result;
184     }
185 }

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

 1 using System;
 2 using System.Data;
 3 using System.Configuration;
 4 using System.Web;
 5 using System.Web.Security;
 6 using System.Web.UI;
 7 using System.Web.UI.WebControls;
 8 using System.Web.UI.WebControls.WebParts;
 9 using System.Web.UI.HtmlControls;
10 using System.Diagnostics;
11 using System.IO;
12 
13 /// <summary>
14 /// Pdf2Swf 将pdf转化为swf
15 /// </summary>
16 public class Pdf2Swf
17 {
18     public Pdf2Swf()
19     {
20         //
21 // TODO: 在此处添加构造函数逻辑
22 //
23     }
24     public void PDFConvertToSWF(string sourcePath,string targetPath)
25     {
26         Process p = new Process();
27         p.StartInfo.FileName = "cmd.exe ";
28         p.StartInfo.UseShellExecute = false;
29         p.StartInfo.RedirectStandardInput = true;
30         p.StartInfo.RedirectStandardOutput = true;
31         p.StartInfo.RedirectStandardError = true;
32         p.StartInfo.CreateNoWindow = true;
33         p.Start();
34         string cmd = "pdf2swf.exe" + " " + sourcePath + " -o " + targetPath;
35         p.StandardInput.WriteLine(cmd);
36         p.Close();
37     }
38 }

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　　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：

View Code

效果就这样：

还不错吧，上面的工具栏也可以实现各种功能

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