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ASP.NET MVC在线预览Excel、Word、TXT、PDF文件

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代码：

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                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>///<param name="url">例：/uploads/......XXX.xls</param>public ActionResult Index(string url)
        {
            string physicalPath = Server.MapPath(Server.UrlDecode(url));
            string extension = Path.GetExtension(physicalPath);

            string htmlUrl = "";
            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;
            }

            return Redirect(Url.Content(htmlUrl));
        }
        #endregion#region 预览Excel
        ///<summary>/// 预览Excel
        ///</summary>publicstring PreviewExcel(string physicalPath, string url)
        {
            Microsoft.Office.Interop.Excel.Application application = null;
            Microsoft.Office.Interop.Excel.Workbook workbook = null;
            application = new Microsoft.Office.Interop.Excel.Application();
            object missing = Type.Missing;
            object trueObject = 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 Excel to Htmlobject format = Microsoft.Office.Interop.Excel.XlFileFormat.xlHtml;
            string htmlName = Path.GetFileNameWithoutExtension(physicalPath) + ".html";
            String outputFile = Path.GetDirectoryName(physicalPath) + "\\" + htmlName;
            workbook.SaveAs(outputFile, format, missing, missing, missing,
                              missing, XlSaveAsAccessMode.xlNoChange, missing,
                              missing, missing, missing, missing);
            workbook.Close();
            application.Quit();
            return Path.GetDirectoryName(Server.UrlDecode(url)) + "\\" + htmlName;
        }
        #endregion#region 预览Word
        ///<summary>/// 预览Word
        ///</summary>publicstring PreviewWord(string physicalPath, string url)
        {
            Microsoft.Office.Interop.Word._Application application = null;
            Microsoft.Office.Interop.Word._Document doc = null;
            application = new Microsoft.Office.Interop.Word.Application();
            object missing = Type.Missing;
            object trueObject = 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 Excel to Htmlobject format = Microsoft.Office.Interop.Word.WdSaveFormat.wdFormatHTML;
            string htmlName = Path.GetFileNameWithoutExtension(physicalPath) + ".html";
            String outputFile = Path.GetDirectoryName(physicalPath) + "\\" + htmlName;
            doc.SaveAs(outputFile, format, missing, missing, missing,
                              missing, XlSaveAsAccessMode.xlNoChange, missing,
                              missing, missing, missing, missing);
            doc.Close();
            application.Quit();
            return Path.GetDirectoryName(Server.UrlDecode(url)) + "\\" + htmlName;
        }
        #endregion#region 预览Txt
        ///<summary>/// 预览Txt
        ///</summary>publicstring PreviewTxt(string physicalPath, string url)
        {
            return Server.UrlDecode(url);
        }
        #endregion#region 预览Pdf
        ///<summary>/// 预览Pdf
        ///</summary>publicstring PreviewPdf(string physicalPath, string url)
        {
            return Server.UrlDecode(url);
        }
        #endregion

    }
}
View Code

 

原文：http://www.cnblogs.com/s0611163/p/4699948.html

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