ASP.NET MVC在线预览Excel、Word、TXT、PDF文件

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Mvc;
using Microsoft.Office.Interop.Excel;
using System.Diagnostics;
using System.IO;
using Microsoft.Office.Interop.Word;

namespace Suya.Web.Apps.Areas.PMP.Controllers
{
/// <summary>
/// 在线预览Office文件
/// </summary>
public class OfficeViewController : Controller
{
#region Index页面
/// <summary>
/// Index页面
/// </summary>
/// <paramname="url">例：/uploads/......XXX.xls</param>
public ActionResult Index(stringurl)
{
stringphysicalPath = Server.MapPath(Server.UrlDecode(url));
stringextension = Path.GetExtension(physicalPath);

stringhtmlUrl = "";
switch(extension.ToLower())
{
case ".xls":
case ".xlsx":
htmlUrl = PreviewExcel(physicalPath, url);
break;
case ".doc":
case ".docx":
htmlUrl = PreviewWord(physicalPath, url);
break;
case ".txt":
htmlUrl = PreviewTxt(physicalPath, url);
break;
case ".pdf":
htmlUrl = PreviewPdf(physicalPath, url);
break;
case ".jpg":
case ".jpeg":
case ".bmp":
case ".gif":
case ".png":
htmlUrl = PreviewImg(physicalPath, url);
break;
default:
htmlUrl = PreviewOther(physicalPath, url);
break;
}

returnRedirect(Url.Content(htmlUrl));
}
#endregion

#region 预览Excel
/// <summary>
/// 预览Excel
/// </summary>
public string PreviewExcel(stringphysicalPath, string url)
{
Microsoft.Office.Interop.Excel.Application application = null;
Microsoft.Office.Interop.Excel.Workbook workbook = null;
application= new Microsoft.Office.Interop.Excel.Application();
objectmissing = Type.Missing;
objecttrueObject = true;
application.Visible = false;
application.DisplayAlerts = false;
workbook =application.Workbooks.Open(physicalPath, missing, trueObject, missing, missing,missing,
missing, missing, missing, missing, missing, missing, missing, missing,missing);
//Save Excelto Html
objectformat = Microsoft.Office.Interop.Excel.XlFileFormat.xlHtml;
stringhtmlName = Path.GetFileNameWithoutExtension(physicalPath) + ".html";
StringoutputFile = Path.GetDirectoryName(physicalPath) + "\\" + htmlName;
workbook.SaveAs(outputFile, format, missing, missing, missing,
missing, XlSaveAsAccessMode.xlNoChange, missing,
missing, missing, missing, missing);
workbook.Close();
application.Quit();
returnPath.GetDirectoryName(Server.UrlDecode(url)) + "\\" + htmlName;
}
#endregion

#region 预览Word
/// <summary>
/// 预览Word
/// </summary>
public string PreviewWord(stringphysicalPath, string url)
{
Microsoft.Office.Interop.Word._Application application = null;
Microsoft.Office.Interop.Word._Document doc = null;
application= new Microsoft.Office.Interop.Word.Application();
objectmissing = Type.Missing;
objecttrueObject = true;
application.Visible= false;
application.DisplayAlerts = WdAlertLevel.wdAlertsNone;
doc =application.Documents.Open(physicalPath, missing, trueObject, missing, missing,missing,
missing, missing, missing, missing, missing, missing, missing, missing,missing, missing);
//Save Excelto Html
objectformat = Microsoft.Office.Interop.Word.WdSaveFormat.wdFormatHTML;
stringhtmlName = Path.GetFileNameWithoutExtension(physicalPath) + ".html";
StringoutputFile = Path.GetDirectoryName(physicalPath) + "\\" + htmlName;
doc.SaveAs(outputFile, format, missing, missing, missing,
missing, XlSaveAsAccessMode.xlNoChange, missing,
missing, missing, missing, missing);
doc.Close();
application.Quit();
returnPath.GetDirectoryName(Server.UrlDecode(url)) + "\\" + htmlName;
}
#endregion

#region 预览Txt
/// <summary>
/// 预览Txt
/// </summary>
public string PreviewTxt(stringphysicalPath, string url)
{
returnServer.UrlDecode(url);
}
#endregion

#region 预览Pdf
/// <summary>
/// 预览Pdf
/// </summary>
public string PreviewPdf(stringphysicalPath, string url)
{
returnServer.UrlDecode(url);
}
#endregion

#region 预览图片
/// <summary>
/// 预览图片
/// </summary>
public string PreviewImg(stringphysicalPath, string url)
{
returnServer.UrlDecode(url);
}
#endregion

#region 预览其他文件
/// <summary>
/// 预览其他文件
/// </summary>
public string PreviewOther(stringphysicalPath, string url)
{
returnServer.UrlDecode(url);
}
#endregion
}
}