asp.net实现word、excel、ppt、pdf在线预览
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asp.net实现word、excel、ppt、pdf在线预览
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引言
之前項(xiàng)目需要，查找了office文檔在線預(yù)覽的解決方案，順便記錄一下，方便以后查詢。
方案一
直接在瀏覽器中打開Office文檔在頁面上的鏈接。會彈出如下窗口：
?
優(yōu)點(diǎn)：主流瀏覽器都支持。
缺點(diǎn)：Office文檔鏈接在瀏覽器中打開，會有如上圖的提示，需用戶自己選擇打開或者保存功能，如果客戶電腦上安裝迅雷下載軟件，會啟動迅雷下載，用戶體驗(yàn)不好。
方案二
office文檔轉(zhuǎn)html，首先引入com組件中office庫，然后在程序集擴(kuò)展中引入word，excel，ppt的dll。
?
然后F6生成，會報如下錯誤:
解決辦法：
?
?office文檔轉(zhuǎn)換html輔助類：
Office2HtmlHelper.cs
using System; using System.Collections.Generic; using System.Linq; using System.Web; using Microsoft.Office.Core; using Word = Microsoft.Office.Interop.Word; namespace Wolfy.OfficePreview {public class Office2HtmlHelper{/// <summary>/// Word轉(zhuǎn)成Html/// </summary>/// <param name="path">要轉(zhuǎn)換的文檔的路徑</param>/// <param name="savePath">轉(zhuǎn)換成html的保存路徑</param>/// <param name="wordFileName">轉(zhuǎn)換成html的文件名字</param>public static void Word2Html(string path, string savePath, string wordFileName){Word.ApplicationClass word = new Word.ApplicationClass();Type wordType = word.GetType();Word.Documents docs = word.Documents;Type docsType = docs.GetType();Word.Document doc = (Word.Document)docsType.InvokeMember("Open", System.Reflection.BindingFlags.InvokeMethod, null, docs, new Object[] { (object)path, true, true });Type docType = doc.GetType();string strSaveFileName = savePath + wordFileName + ".html";object saveFileName = (object)strSaveFileName;docType.InvokeMember("SaveAs", System.Reflection.BindingFlags.InvokeMethod, null, doc, new object[] { saveFileName, Word.WdSaveFormat.wdFormatFilteredHTML });docType.InvokeMember("Close", System.Reflection.BindingFlags.InvokeMethod, null, doc, null);wordType.InvokeMember("Quit", System.Reflection.BindingFlags.InvokeMethod, null, word, null);}/// <summary>/// Excel轉(zhuǎn)成Html/// </summary>/// <param name="path">要轉(zhuǎn)換的文檔的路徑</param>/// <param name="savePath">轉(zhuǎn)換成html的保存路徑</param>/// <param name="wordFileName">轉(zhuǎn)換成html的文件名字</param>public static void Excel2Html(string path, string savePath, string wordFileName){string str = string.Empty;Microsoft.Office.Interop.Excel.Application repExcel = new Microsoft.Office.Interop.Excel.Application();Microsoft.Office.Interop.Excel.Workbook workbook = null;Microsoft.Office.Interop.Excel.Worksheet worksheet = null;workbook = repExcel.Application.Workbooks.Open(path, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing);worksheet = (Microsoft.Office.Interop.Excel.Worksheet)workbook.Worksheets[1];object htmlFile = savePath + wordFileName + ".html";object ofmt = Microsoft.Office.Interop.Excel.XlFileFormat.xlHtml;workbook.SaveAs(htmlFile, ofmt, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Microsoft.Office.Interop.Excel.XlSaveAsAccessMode.xlNoChange, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing);object osave = false;workbook.Close(osave, Type.Missing, Type.Missing);repExcel.Quit();}/// <summary>/// ppt轉(zhuǎn)成Html/// </summary>/// <param name="path">要轉(zhuǎn)換的文檔的路徑</param>/// <param name="savePath">轉(zhuǎn)換成html的保存路徑</param>/// <param name="wordFileName">轉(zhuǎn)換成html的文件名字</param>public static void PPT2Html(string path, string savePath, string wordFileName){Microsoft.Office.Interop.PowerPoint.Application ppApp = new Microsoft.Office.Interop.PowerPoint.Application();string strSourceFile = path;string strDestinationFile = savePath + wordFileName + ".html";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);prsPres.SaveAs(strDestinationFile, Microsoft.Office.Interop.PowerPoint.PpSaveAsFileType.ppSaveAsHTML, MsoTriState.msoTrue);prsPres.Close();ppApp.Quit();}} }Office2Html.aspx
<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Office2Html.aspx.cs" Inherits="Wolfy.OfficePreview.Office2Html" %><!DOCTYPE html><html xmlns="http://www.w3.org/1999/xhtml"> <head runat="server"><meta http-equiv="Content-Type" content="text/html; charset=utf-8" /><title></title> </head> <body><form id="form1" runat="server"><div><asp:Button Text="Word轉(zhuǎn)Html" ID="btnWord" runat="server" CommandArgument="docx" OnClick="btnWord_Click" /><asp:Button ID="btnExcel" Text="Excel轉(zhuǎn)Html" runat="server" CommandArgument="xlsx" OnClick="btnWord_Click" /><asp:Button ID="btnPPT" Text="PPT轉(zhuǎn)Html" runat="server" CommandArgument="ppt" OnClick="btnWord_Click" /></div></form> </body> </html>?Office2Html.aspx.cs
using System; using System.Collections.Generic; using System.Linq; using System.Web; using System.Web.UI; using System.Web.UI.WebControls;namespace Wolfy.OfficePreview {public partial class Office2Html : System.Web.UI.Page{protected void Page_Load(object sender, EventArgs e){}protected void btnWord_Click(object sender, EventArgs e){Button btn = sender as Button;switch (btn.CommandArgument){case "docx":Office2HtmlHelper.Word2Html(MapPath("/Doc/分析某網(wǎng)站的SEO策略(外鏈篇).doc"), MapPath("/Html/"), "分析某網(wǎng)站的SEO策略(外鏈篇)");break;case "xlsx":Office2HtmlHelper.Excel2Html(MapPath("/Excel/1994-2013北京市歷年最低工資標(biāo)準(zhǔn).xlsx"), MapPath("/Html/"), "1994-2013北京市歷年最低工資標(biāo)準(zhǔn)");break;case "ppt":Office2HtmlHelper.PPT2Html(MapPath("/PPT/23種設(shè)計模式詳解.ppt"), MapPath("/Html/"), "23種設(shè)計模式詳解");break;default:break;}}} }?
測試結(jié)果：
這里為了測試特找了含有圖片的office文檔，瀏覽正常：
?要求：機(jī)器需安裝office，并且office環(huán)境是純凈的，所謂純凈就是不能有多個版本，lz曾經(jīng)在電腦上安裝過wps，被害苦了總是報如下錯誤：
報這個錯誤，只能哭了，網(wǎng)上的關(guān)于00046的解決辦法都嘗試了，不行。然后不得不重新安裝office，然后笑了。最好安裝office完整版，因?yàn)樵瓉硌b的不是完整版，不知道有沒有這方面的原因，也沒有測試，建議完整版。
方案三
office文檔轉(zhuǎn)PDF，PDF轉(zhuǎn)swf，使用flexpaper+swftools實(shí)現(xiàn)在線瀏覽。
在操作office2007時，需安裝SaveAsPDFandXPS.exe?，安裝成功后，如圖所示：
只有安裝了SaveAsPDFandXPS.exe，程序操作office文檔，才有office文檔另存為pdf文件。office2010不需要安裝了，內(nèi)置有這個功能。
?核心代碼：
Office2PDFHelper.cs
using System; using System.Collections.Generic; using System.Linq; using System.Web; using Word = Microsoft.Office.Interop.Word; using Excel = Microsoft.Office.Interop.Excel; using PowerPoint = Microsoft.Office.Interop.PowerPoint; using Microsoft.Office.Core; namespace Wolfy.OfficePreview {/// <summary>/// Office2Pdf 將Office文檔轉(zhuǎn)化為pdf/// </summary>public class Office2PDFHelper{public Office2PDFHelper(){//// TODO: 在此處添加構(gòu)造函數(shù)邏輯//}/// <summary>/// Word轉(zhuǎn)換成pdf/// </summary>/// <param name="sourcePath">源文件路徑</param>/// <param name="targetPath">目標(biāo)文件路徑</param>/// <returns>true=轉(zhuǎn)換成功</returns>public static 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,ref paramMissing, ref paramMissing, ref paramMissing,ref paramMissing, ref paramMissing, ref paramMissing,ref paramMissing, ref paramMissing, ref paramMissing,ref paramMissing, ref paramMissing, 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, ref paramMissing);wordDocument = null;}if (wordApplication != null){wordApplication.Quit(ref paramMissing, ref paramMissing, ref paramMissing);wordApplication = null;}GC.Collect();GC.WaitForPendingFinalizers();GC.Collect();GC.WaitForPendingFinalizers();}return result;}/// <summary>/// 把Excel文件轉(zhuǎn)換成PDF格式文件 /// </summary>/// <param name="sourcePath">源文件路徑</param>/// <param name="targetPath">目標(biāo)文件路徑</param>/// <returns>true=轉(zhuǎn)換成功</returns>public static 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, missing, missing, missing,missing, missing, missing, missing, missing, missing, missing, missing, missing);workBook.ExportAsFixedFormat(targetType, target, Excel.XlFixedFormatQuality.xlQualityStandard, true, false, missing, missing, missing, missing);result = true;}catch{result = false;}finally{if (workBook != null){workBook.Close(true, missing, missing);workBook = null;}if (application != null){application.Quit();application = null;}GC.Collect();GC.WaitForPendingFinalizers();GC.Collect();GC.WaitForPendingFinalizers();}return result;}///<summary> /// 把PowerPoint文件轉(zhuǎn)換成PDF格式文件 ///</summary> ///<param name="sourcePath">源文件路徑</param> ///<param name="targetPath">目標(biāo)文件路徑</param> ///<returns>true=轉(zhuǎn)換成功</returns> public static 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;}} }?Office2PDF.aspx
<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Office2PDF.aspx.cs" Inherits="Wolfy.OfficePreview.Office2PDF" %><!DOCTYPE html><html xmlns="http://www.w3.org/1999/xhtml"> <head runat="server"> <meta http-equiv="Content-Type" content="text/html; charset=utf-8"/><title></title> </head> <body><form id="form1" runat="server"><div><asp:Button Text="Word轉(zhuǎn)PDF" ID="btnWord" runat="server" CommandArgument="docx" OnClick="btnWord_Click" /><asp:Button ID="btnExcel" Text="Excel轉(zhuǎn)PDF" runat="server" CommandArgument="xlsx" OnClick="btnWord_Click" /><asp:Button ID="btnPPT" Text="PPT轉(zhuǎn)PDF" runat="server" CommandArgument="ppt" OnClick="btnWord_Click" /></div></form> </body> </html>?
Office2PDF.aspx.cs
using System; using System.Collections.Generic; using System.Linq; using System.Web; using System.Web.UI; using System.Web.UI.WebControls;namespace Wolfy.OfficePreview {public partial class Office2PDF : System.Web.UI.Page{protected void Page_Load(object sender, EventArgs e){}protected void btnWord_Click(object sender, EventArgs e){Button btn = sender as Button;switch (btn.CommandArgument){case "docx":Office2PDFHelper.DOCConvertToPDF(MapPath("/Doc/分析某網(wǎng)站的SEO策略(外鏈篇).doc"), MapPath("/PDF/分析某網(wǎng)站的SEO策略(外鏈篇).pdf"));break;case "xlsx":Office2PDFHelper.XLSConvertToPDF(MapPath("/Excel/1994-2013北京市歷年最低工資標(biāo)準(zhǔn).xlsx"), MapPath("/PDF/1994-2013北京市歷年最低工資標(biāo)準(zhǔn).pdf"));break;case "ppt":Office2PDFHelper.PPTConvertToPDF(MapPath("/PPT/23種設(shè)計模式詳解.ppt"), MapPath("/PDF/23種設(shè)計模式詳解.pdf"));break;default:break;}}} }?
測試結(jié)果：
?
此方案office轉(zhuǎn)pdf文件的過程的要求與方案二要求相同。
pdf轉(zhuǎn)換完成后，就可以將pdf轉(zhuǎn)換為swf，使用flexpaper+swftools實(shí)現(xiàn)在線瀏覽了，可參考我之前的一篇文章：
FlexPaper+SWFTool+操作類=在線預(yù)覽PDF
方案四
office文檔直接轉(zhuǎn)換為swf，使用flexpaper+swftool實(shí)現(xiàn)在先瀏覽。
office直接轉(zhuǎn)換為swf，這里使用flashpaper來實(shí)現(xiàn)：
FlashPaper是一個虛擬打印機(jī)，可將word文件直接轉(zhuǎn)化成swf格式文件(.doc.xls .txt .pdf等文件都可以正常生成SWF格式)。
這里只貼出核心代碼：
Office2Swf.aspx.cs
using System; using System.Collections.Generic; using System.Diagnostics; using System.Linq; using System.Web; using System.Web.UI; using System.Web.UI.WebControls;namespace Wolfy.OfficePreview {public partial class Office2Swf : System.Web.UI.Page{protected void Page_Load(object sender, EventArgs e){}protected void btnWord_Click(object sender, EventArgs e){Button btn = sender as Button;switch (btn.CommandArgument){case "docx":ConvertOffice2Swf(MapPath("/Doc/分析某網(wǎng)站的SEO策略(外鏈篇).doc"), MapPath("/SWF/分析某網(wǎng)站的SEO策略(外鏈篇).swf"));break;case "xlsx":Office2PDFHelper.XLSConvertToPDF(MapPath("/Excel/1994-2013北京市歷年最低工資標(biāo)準(zhǔn).xlsx"), MapPath("/SWF/1994-2013北京市歷年最低工資標(biāo)準(zhǔn).swf"));break;case "ppt":Office2PDFHelper.PPTConvertToPDF(MapPath("/PPT/23種設(shè)計模式詳解.ppt"), MapPath("/SWF/23種設(shè)計模式詳解.swf"));break;default:break;}}/// <summary>/// office 轉(zhuǎn)swf/// </summary>/// <param name="officePath">要轉(zhuǎn)換的office文檔路徑</param>/// <param name="swfPath">轉(zhuǎn)換后swf的路徑</param>private void ConvertOffice2Swf(string officePath, string swfPath){Process process = new Process(); //創(chuàng)建進(jìn)程對象 ProcessStartInfo startInfo = new ProcessStartInfo();string paperroot = @"C:\Program Files\Macromedia\FlashPaper 2\FlashPrinter.exe";//這里是FlashPrinter的路徑string docFile = officePath;string swfFile = swfPath;startInfo.FileName = paperroot;startInfo.Arguments = docFile + " -o " + swfFile;startInfo.UseShellExecute = false; //不使用系統(tǒng)外殼程序啟動 startInfo.RedirectStandardInput = false; //不重定向輸入 startInfo.RedirectStandardOutput = false; //重定向輸出 startInfo.CreateNoWindow = true; //不創(chuàng)建窗口 process.StartInfo = startInfo;process.Start(); if (process != null)process.Close();}} }鑒于測試時，flashpaper在將office文檔轉(zhuǎn)換為swf的時候，在使用flexpaper的瀏覽時，出現(xiàn)轉(zhuǎn)換的內(nèi)容為空，猜測：flexpaper能打開的swf文件與flashpaper轉(zhuǎn)的swf文件不兼容。最后使用flashpaper將office文檔轉(zhuǎn)換為pdf，然后走方案三，pdf轉(zhuǎn)swf的步驟。另外本地測試時，沒問題。將項(xiàng)目部署在IIS上，不能瀏覽，出現(xiàn)卡死的情況，調(diào)試發(fā)現(xiàn)，文件太大，在office還沒完全轉(zhuǎn)換為pdf的情況下，swftool工具就去尋找pdf文件，出現(xiàn)錯誤。
IIS上，無法瀏覽，查詢網(wǎng)上解決方案，和權(quán)限這塊有關(guān)，按照步驟設(shè)置了，未果，有點(diǎn)遺憾。
方案五
使用點(diǎn)聚公司的weboffice控件，測試后發(fā)現(xiàn)兼容性較差，放棄。有興趣的可以研究一下。
方案六
office轉(zhuǎn)pdf后，直接瀏覽器打開，此方案鑒于目前主流瀏覽器都集成adobe reader功能，可實(shí)現(xiàn)直接打開PDF文件。將pdf文件鏈接可直接打開。
必要條件：本地需安裝adobe reader類似軟件。
方案七
http://blogs.office.com/2013/04/10/office-web-viewer-view-office-documents-in-a-browser/
方案八
web在線打印，打印閱覽，打印維護(hù)，打印設(shè)計
總結(jié)
鑒于項(xiàng)目情況選擇一個適合的方案，其中有方案只是曲線救國，但是同樣能達(dá)到要求。如果您覺得對你有所幫助，不妨推薦一下，讓更多的人都能看到，謝謝你能看到文章最后。
demo:
鏈接：https://pan.baidu.com/s/1hqEpx5a?密碼：gupg
參考文章：
http://www.cnblogs.com/expectszc/archive/2012/04/04/2432149.html
http://www.cnblogs.com/lexlin/articles/2478027.html
http://www.cnblogs.com/gossip/p/3473024.html
http://www.cnblogs.com/expectszc/archive/2012/04/04/2432149.html
- 博客地址：http://www.cnblogs.com/wolf-sun/?
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