<赞>asp.net实现在线查看(预览)pdf，ppt，word,exc...

using Aspose.Cells;using Aspose.Slides.Pptx;using System;using System.Collections.Generic;using System.Data;using System.IO;using System.Linq;using System.Net;using System.Net.Http;using System.Text;using System.Web.Http;namespace DocOnlineView.UI.Controllers.MVCAPI{ public class HomeController : ApiController { [HttpGet] public DataTable CourseViewOnLine(string fileName) { DataTable dtlist = new DataTable(); dtlist.Columns.Add("TempDocHtml", typeof(string)); string fileDire = "/Files"; string sourceDoc = Path.Combine(fileDire, fileName); string saveDoc = ""; string docExtendName = System.IO.Path.GetExtension(sourceDoc).ToLower(); bool result = false; if (docExtendName == ".pdf") { //pdf模板文件 string tempFile = Path.Combine(fileDire, "temppdf.html"); saveDoc = Path.Combine(fileDire, "viewFiles/onlinepdf.html"); result = PdfToHtml( sourceDoc, System.Web.HttpContext.Current.Server.MapPath(tempFile), System.Web.HttpContext.Current.Server.MapPath(saveDoc)); } else { saveDoc = Path.Combine(fileDire, "viewFiles/onlineview.html"); result = OfficeDocumentToHtml( System.Web.HttpContext.Current.Server.MapPath(sourceDoc), System.Web.HttpContext.Current.Server.MapPath(saveDoc)); } if (result) { dtlist.Rows.Add(saveDoc); } return dtlist; } private bool OfficeDocumentToHtml(string sourceDoc, string saveDoc) { bool result = false; //获取文件扩展名 string docExtendName = System.IO.Path.GetExtension(sourceDoc).ToLower(); switch (docExtendName) { case ".doc": case ".docx": Aspose.Words.Document doc = new Aspose.Words.Document(sourceDoc); doc.Save(saveDoc, Aspose.Words.SaveFormat.Html); result = true; break; case ".xls": case ".xlsx": Workbook workbook = new Workbook(sourceDoc); workbook.Save(saveDoc, SaveFormat.Html); result = true; break; case ".ppt": case ".pptx": //templateFile = templateFile.Replace("/", "\\"); //string templateFile = sourceDoc; //templateFile = templateFile.Replace("/", "\\"); PresentationEx pres = new PresentationEx(sourceDoc); pres.Save(saveDoc, Aspose.Slides.Export.SaveFormat.Html); result = true; break; default: break; } return result; } private bool PdfToHtml(string fileName, string tempFile, string saveDoc) { //---------------------读html模板页面到stringbuilder对象里---- StringBuilder htmltext = new StringBuilder(); using (StreamReader sr = new StreamReader(tempFile)) //模板页路径 { String line; while ((line = sr.ReadLine()) != null) { htmltext.Append(line); } sr.Close(); } fileName = fileName.Replace("\\", "/"); //----------替换htm里的标记为你想加的内容 htmltext.Replace("$PDFFILEPATH", fileName); //----------生成htm文件------------------―― using (StreamWriter sw = new StreamWriter(saveDoc, false, System.Text.Encoding.GetEncoding("utf-8"))) //保存地址 { sw.WriteLine(htmltext); sw.Flush(); sw.Close(); } return true; } }}