直接在线预览Word、Excel、TXT文件之ASP.NET

发布：2020/1/15 10:23:29作者：管理员来源：本站浏览次数：1109

		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>
	
		    public string 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 Html
	
		      object 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>
	
		    public string 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 Html
	
		      object 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>
	
		    public string PreviewTxt(string physicalPath, string url)
	
		    {
	
		      return Server.UrlDecode(url);
	
		    }
	
		    #endregion
	
		    #region 预览Pdf
	
		    /// <summary>
	
		    /// 预览Pdf
	
		    /// </summary>
	
		    public string PreviewPdf(string physicalPath, string url)
	
		    {
	
		      return Server.UrlDecode(url);
	
		    }
	
		    #endregion
	
		  }
	
		}

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