基于ASP.NET MVC 利用(Aspose+Pdfobject.js) 实现在线预览Word、Excel、PPT、PDF文件

本文介绍了一种在线预览多种格式文档的方法，包括Word、Excel、PPT及PDF等，通过将这些文档转换成HTML格式来实现网页上的直接查看。

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详细链接：https://shop499704308.taobao.com/?spm=a1z38n.10677092.card.11.594c1debsAGeak

VS2010版本以及以上版本源码下载地址：http://download.youkuaiyun.com/download/u012949335/10231812

VS2012版本以及以上版本源码下载地址：http://download.youkuaiyun.com/download/u012949335/10232057

#region MyRegion
        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;
        }

        
        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.Open(sourceDoc);
                    //workbook.Save(saveDoc, FileFormatType.AsposePdf);
                    workbook.Save(saveDoc, Aspose.Cells.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;
        }

        #endregion

[HttpGet]
        public string CourseViewOnLine(string fileName) 
        {
            //DataTable dtlist = new DataTable();
            //dtlist.Columns.Add("TempDocHtml", typeof(string));
            string json = "";
            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)
            {
                json = "{\"TempDocHtml\":\"" + saveDoc.Replace("\\","/") + "\"}";
                //dtlist.Rows.Add(saveDoc);
            }

            return json;
        }

$(function () {
    SexyLightbox.initialize({ color: 'white' });
});

var viewDoc = function (fileName) {
    showLoading("body", "正在生成预览");

    //生成html文件  
    $.ajax({
        url: "CourseViewOnLine?fileName=" + fileName,
        type: "GET",
        dataType: "json",
        success: function (data) {
            closeLoading();
 
            //alert(JSON.stringify(data));
            //alert(data[0].TempDocHtml);
            var diag = new Dialog();
            diag.Width = 10000;
            diag.Height = 6000;
            diag.Title = "内容页为外部连接的窗口";
            diag.URL = data.TempDocHtml + "?ver=" + Math.random() * 10;
            diag.show();

            //$("#hidePopupDialog").attr('href', '' + data[0].TempDocHtml + '?TB_iframe=true&height=450&width=920');
            //$("#hidePopupDialog").click();
        },
        error: function () {
            closeLoading();
            alert('生成失败');
        }
    });
}

// 加载遮罩
var showLoading = function (elementTag, message) {
    var msg = message ? message : "加载数据，请稍候...";
    $("<div class=\"datagrid-mask\"></div>").css({
        display: "block", width: "100%",
        height: $(elementTag).height()
    }).appendTo(elementTag);
    $("<div class=\"datagrid-mask-msg\"></div>")
        .html(msg)
        .appendTo(elementTag).css({ display: "block", left: "30%", top: ($(elementTag).height() - 45) / 2 });
};

//关闭遮罩
var closeLoading = function () {
    $('.datagrid-mask').remove();
    $('.datagrid-mask-msg').remove();
};

<%@ Page Title="" Language="C#" MasterPageFile="~/Views/Shared/Site.Master" Inherits="System.Web.Mvc.ViewPage<dynamic>" %>

<asp:Content ID="Content1" ContentPlaceHolderID="TitleContent" runat="server">
	IndexOnline
</asp:Content>

<asp:Content ID="Content2" ContentPlaceHolderID="MainContent" runat="server">

    <h2>IndexOnline</h2>
    <script src="../Scripts/jquery-1.8.2.js" type="text/javascript"></script>
    <script src="../Scripts/Js/pdfobject/pdfobject.js" type="text/javascript"></script>
    <script src="../Scripts/Js/index.js" type="text/javascript"></script>
    <script src="../Scripts/Js/PopupDialog/jquery.easing.1.3.js" type="text/javascript"></script>
    <script src="../Scripts/Js/PopupDialog/sexylightbox.v2.3.jquery.min.js" type="text/javascript"></script>
    <script src="../Scripts/Js/zDialog/zDrag.js" type="text/javascript"></script>
    <script src="../Scripts/Js/zDialog/zDialog.js" type="text/javascript"></script>


     <a  class="docViewDownload" 
                onclick="viewDoc('wordtest1.doc');">Word 预 览
            </a>

            <a  class="docViewDownload" 
                onclick="viewDoc('exceltest.xls');">Excel 预 览
            </a>

            <a  class="docViewDownload" 
                onclick="viewDoc('ppttest.pptx');">PPT 预 览
            </a>
            <a  class="docViewDownload" 
                onclick="viewDoc('pdftest.pdf');">PDF 预 览
            </a>
</asp:Content>