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相仿百度文库源码

热度：436   发布时间：2013-10-23 11:39:13.0
类似百度文库源码

这段时间想弄一个类似于百度文库的程序，网上查了比较多的资料都没有合适，没办法只能自己动手，现把自己整理的与大家分享，希望能对大家能有帮助[实例下载，在文章最后]

1.下载必备工具

     1>下载swftools[http://www.swftools.org/swftools-2013-04-09-1007.exe]安装

     2>下载flexpager[https://flexpaper.googlecode.com/files/FlexPaper_2.1.5.zip]

2.创建MVC应用程序，在Scripts下新建"flexpager"文件夹,并将解压flexpager_2.1.5.zip文件夹中的"flexpaper.css","flexpaper.js","flexpaper_handlers.js","flexpaper_handlers_debug.js","FlexPaperViewer.swf"复制到刚创建的flexpager下，如下图：

       

然后打开flexpager.js，搜索window[instance] = flashembed，将下面的Src修改为_jsDirectory+"FlexPaperViewer.swf"，expressInstall修改为：/Scripts/flexpager/expressinstall.swf，

修改web.config添加appSettings

    <add key="SwfFilePath" value="D:\UploadFiles\Swf\" />
    <add key="PdfFilePath" value="D:\UploadFiles\Pdf\" />
    <add key="ExtractText" value=""C:\Program Files\SWFTools\swfstrings.exe" "{path.swf}{swffile}"" />
    <add key="SplitPages" value=""C:\Program Files\SWFTools\pdf2swf.exe" "{path.pdf}{pdffile}" -o "{path.swf}{pdffile}%.swf" -f -T 9 -t -s storeallcharacters -s linknameurl" />
    <add key="SingleDoc" value=""C:\Program Files\SWFTools\pdf2swf.exe" "{path.pdf}{pdffile}" -o "{path.swf}{pdffile}.swf" -f -T 9 -t -s storeallcharacters -s linknameurl" />
    <add key="AllowCache" value="1"/>

SwfFilePath转换后的Swf文件存放位置，pdfFilePath上传PDF文件位置,ExtractText查找命令,splitpages生成swf命令,allowCache是否缓存

3.创建类库SwfConvert，将创建三个类，分别为：PdfCommon.cs,PdfToSwf.cs,SwfExtract.cs，如下图所示：

PdfCommon.cs[计算PDF页大小和设置缓存]：

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.IO;
using System.Text.RegularExpressions;
using System.Web;

namespace SwfConvert
{
    public static class PdfCommon
    {
        public static Boolean validPdfParams(String pdfFilePath, String doc, String page)
        {
            return doc != null && !(doc.Length > 255 || page != null && page.Length > 255);
        }

        public static Boolean validSwfParams(String swfFilePath, String doc, String page)
        {
            return doc != null && !(doc.Length > 255 || page != null && page.Length > 255);
        }

        public static int getTotalPages(string fileName)
        {
            using (StreamReader sr = new StreamReader(File.OpenRead(fileName)))
            {
                Regex regex = new Regex(@"/Type\s*/Page[^s]");
                MatchCollection matches = regex.Matches(sr.ReadToEnd());

                return matches.Count;
            }
        }

        public static void setCacheHeaders(HttpContext context)
        {
            context.Response.AddHeader("Cache-Control", "private, max-age=10800, pre-check=10800");
            context.Response.AddHeader("Pragma", "private");
            context.Response.Cache.SetExpires(DateTime.Now.AddDays(2));
        }
    }
}


PdfToSwf.cs[PDF转Swf类]：

using System;
using System.Web;
using System.Configuration;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.IO;

namespace SwfConvert
{
    public class PdfToSwf
    {
        public String ConvertToSwf(string doc, String page)
        {
            try
            {
                String output = "";
                String pdfFilePath = ConfigurationManager.AppSettings["PdfFilePath"].ToString() + doc;
                String swfFilePath = ConfigurationManager.AppSettings["SwfFilePath"].ToString() + doc + page + ".swf";
                String command = "";

                if (page != null && page.Length > 0)
                    command = ConfigurationManager.AppSettings["SplitPages"].ToString();
                else
                    command = ConfigurationManager.AppSettings["SingleDoc"].ToString();

                command = command.Replace("{path.pdf}", ConfigurationManager.AppSettings["PdfFilePath"].ToString());
                command = command.Replace("{path.swf}", ConfigurationManager.AppSettings["SwfFilePath"].ToString());
                command = command.Replace("{pdffile}", doc);

                try
                {
                    if (!this.isNotConverted(pdfFilePath, swfFilePath))
                    {
                        return "[Converted]";
                    }
                }
                catch (Exception ex)
                {
                    return "[" + ex.Message + "]";
                }

                int return_var = 0;
                String pagecommand = "";

                if (page != null && page.Length > 0)
                {
                    pagecommand = command.Replace("%", page);
                    pagecommand += " -p " + page;
                }

                System.Diagnostics.Process proc = new System.Diagnostics.Process();
                proc.StartInfo.FileName = command.Substring(0, command.IndexOf(".exe") + 5);
                command = command.Substring(command.IndexOf(".exe") + 5);

                if (page != null && page.Length > 0)
                    proc.StartInfo.Arguments = pagecommand.Substring(pagecommand.IndexOf(".exe") + 5);
                else
                    proc.StartInfo.Arguments = command;

                proc.StartInfo.UseShellExecute = false;
                proc.StartInfo.WindowStyle = System.Diagnostics.ProcessWindowStyle.Hidden;
                proc.StartInfo.CreateNoWindow = true;
                proc.StartInfo.RedirectStandardOutput = true;

                if (proc.Start())
                {
                    output = proc.StandardOutput.ReadToEnd();
                    proc.WaitForExit();
                    proc.Close();
                    return_var = 0;

                    if (page != null && page.Length > 0)
                    {
                        System.Diagnostics.Process proc2 = new System.Diagnostics.Process();
                        proc2.StartInfo.FileName = proc.StartInfo.FileName;
                        proc2.StartInfo.Arguments = command;
                        proc2.StartInfo.UseShellExecute = true;
                        proc2.StartInfo.WindowStyle = System.Diagnostics.ProcessWindowStyle.Hidden;
                        proc2.StartInfo.CreateNoWindow = true;
                        proc2.Start();
                    }
                }
                else
                    return_var = -1;

                if (return_var == 0)
                    return "[Converted]";
                else
                    return "Error converting document, make sure the conversion tool is installed and that correct user permissions are applied to the SWF Path directory";
            }
            catch (Exception ex)
            {
                throw ex;
            }
            return "";
        }

        public Boolean isNotConverted(String pdfFilePath, String swfFilePath)
        {
            if (!File.Exists(pdfFilePath))
                throw new Exception("Document does not exist");

            if (swfFilePath == null)
                throw new Exception("Document output file name not set");
            else
            {
                if (!File.Exists(swfFilePath))
                    return true;
                else
                    if (new System.IO.FileInfo(pdfFilePath).LastWriteTime > new System.IO.FileInfo(swfFilePath).LastWriteTime)
                        return true;
            }

            return false;
        }
    }
}

SwfExtract.cs[PDF内容查找类]:

using System;
using System.Configuration;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.IO;

namespace SwfConvert
{
    public class SwfExtract
    {
        public String FindText(String doc, String page, String searchterm, int numPages = -1)
        {
            try
            {
                String output = "";
                String swfFilePath = ConfigurationManager.AppSettings["SwfFilePath"].ToString() + doc + page + ".swf";
                String command = ConfigurationManager.AppSettings["ExtractText"].ToString() ;
                int pagecount = -1;

                if (numPages == -1)
                {
                    pagecount = Directory.GetFiles(ConfigurationManager.AppSettings["SwfFilePath"].ToString(), doc + "*").Count();
                }
                else
                {
                    pagecount = numPages;
                }

                if (!PdfCommon.validSwfParams(swfFilePath, doc, page))
                    return "[Invalid Parameters]";

                command = command.Replace("{path.swf}", ConfigurationManager.AppSettings["SwfFilePath"].ToString());
                command = command.Replace("{swffile}", doc + page + ".swf");

                System.Diagnostics.Process proc = new System.Diagnostics.Process();
                proc.StartInfo.FileName = command.Substring(0, command.IndexOf(".exe") + 5);
                proc.StartInfo.UseShellExecute = false;
                proc.StartInfo.WindowStyle = System.Diagnostics.ProcessWindowStyle.Hidden;
                proc.StartInfo.CreateNoWindow = true;
                proc.StartInfo.RedirectStandardOutput = true;
                proc.StartInfo.Arguments = command.Substring(command.IndexOf(".exe") + 5);

                if (proc.Start())
                {
                    output = proc.StandardOutput.ReadToEnd();
                    int strpos = output.ToLower().IndexOf(searchterm.ToLower());
                    if (strpos > 0)
                    {
                        return "[{\"page\":" + page + ", \"position\":" + strpos + "}]";
                    }
                    else
                    {
                        int npage = Convert.ToInt32(page);

                        if (npage < pagecount)
                        {
                            return this.FindText(doc, (npage + 1).ToString(), searchterm, pagecount);
                        }
                        else
                        {
                            return "[{\"page\":-1, \"position\":-1}]";
                        }
                    }
                }
                else
                    return "[Error Extracting]";
            }
            catch (Exception ex)
            {
                return "[Error Extracting]";
            }
        }
    }
}

4.MVC应用程序引用SwfConvert类库，创建ReadPdfController,创建视图FileListWin.cshtml,如下图所示：

 

ReadPdfController.cs代码：

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Mvc;
using System.Configuration;
using SwfConvert;
using System.Data;
using System.IO;

namespace MvcReadPdfApp.Controllers
{
    public class ReadPdfController : Controller
    {
        //
        // GET: /ReadPdf/
        public ActionResult Index(string doc)
        {
            ViewBag.PdfFilePath = ConfigurationManager.AppSettings["PdfFilePath"].ToString() + doc;
            ViewBag.SwfFilePath = ConfigurationManager.AppSettings["SwfFilePath"].ToString();
            ViewBag.Numbers = PdfCommon.getTotalPages(ViewBag.PdfFilePath);
            ViewBag.Doc = doc;
            return View();
        }

        /// <summary>
        /// 文件列表
        /// </summary>
        /// <returns></returns>
        public ActionResult FileListWin()
        {
            ViewBag.FileList = FindFileList();
            return View();
        }

        /// <summary>
        /// 上传文件
        /// </summary>
        /// <param name="file"></param>
        /// <returns></returns>
        [HttpPost]
        public ActionResult UploadFile(HttpPostedFileBase file)
        {
            var pdfFilePath = ConfigurationManager.AppSettings["PdfFilePath"].ToString() + Path.GetFileName(file.FileName);
            file.SaveAs(pdfFilePath);
            ViewBag.FileList = FindFileList();

            return View("~/Views/ReadPdf/FileListWin.cshtml");
        }

        private IList<string> FindFileList()
        {
            var list = new List<string>();
            var pdfFilePath = ConfigurationManager.AppSettings["PdfFilePath"].ToString();
            DirectoryInfo dir = new DirectoryInfo(pdfFilePath);
            foreach (FileInfo f in dir.GetFiles())
            {
                var dict = new Dictionary<string, string>();
                if (Path.GetExtension(f.Name).ToLower() == ".pdf")
                {
                    list.Add(f.Name);
                }
            }
            return list;
        }
    }
}


FileListWin.cshtml代码：

@{
    Layout = null;
}

<!DOCTYPE html>

<html>
<head>
    <meta name="viewport" content="width=device-width" />
    <title>FileListWin</title>
    <style type="text/css">
        ul { margin:0px;padding:0px;}
    </style>
</head>
<body style="padding:50px;">
    <div>
        @using (Html.BeginForm("UploadFile", "ReadPdf", FormMethod.Post, new { enctype = "multipart/form-data" }))
        {
            <span>选择上传文件：</span><input name="file" type="file" id="file" />
            <span><input type="submit" name="Upload" value="Upload" /></span>
        }
    </div>
    <div>
        <ul>
            @foreach (var f in (ViewBag.FileList as List<string>))
            {
                <li><a href="@Url.Action("Index","ReadPdf")?doc=@f" target="_blank">@f</a></li>    
            }            
        </ul>
    </div>
</body>
</html>


Index.cshtml代码：

@{
    Layout = null;
}

<!DOCTYPE html>

<html>
<head>
    <meta name="viewport" content="width=device-width" />
    <title>Index</title>
    <link type="text/css" rel="Stylesheet" href="@Url.Content("~/Scripts/flexpager/flexpaper.css")" />
    <script type="text/javascript" src="@Url.Content("~/Scripts/jquery.min.js")"></script>
    <script type="text/javascript" src="@Url.Content("~/Scripts/flexpager/flexpaper.js")"></script>
    <script type="text/javascript" src="@Url.Content("~/Scripts/flexpager/flexpaper_handlers.js")"></script>
    <script type="text/javascript">
        var numPages = "@ViewBag.Numbers";
        var doc = '@ViewBag.Doc';
        var swfFileUrl = escape('{@Url.Action("View.ashx","PdfServices")?doc=' + doc + '&page=[*,0],' + numPages + '}');
        var searchServiceUrl = escape('@Url.Action("Containstext.ashx","PdfServices")?doc=' + doc + '&page=[page]&searchterm=[searchterm]');

        function getDocumentUrl(document) {
            var url = "{@Url.Action("View.ashx","PdfServices")?doc={doc}&format={format}&page=[*,0],{numPages}}";
            url = url.replace("{doc}", document);
            url = url.replace("{numPages}", numPages);
            return url;            
        }
        $(function () {
            $("#documentViewer").css("height", $(window).height());
            $('#documentViewer').FlexPaperViewer(
              {
                  config: {
                      DOC: escape(getDocumentUrl("@ViewBag.Doc")),
                      Scale: 0.6,
                      ZoomTransition: 'easeOut',
                      ZoomTime: 0.5,
                      ZoomInterval: 0.2,
                      FitPageOnLoad: true,
                      FitWidthOnLoad: false,
                      FullScreenAsMaxWindow: false,
                      ProgressiveLoading: false,
                      MinZoomSize: 0.2,
                      MaxZoomSize: 5,
                      SearchMatchAll: false,
                      SearchServiceUrl: searchServiceUrl,
                      InitViewMode: 'Portrait',

                      ViewModeToolsVisible: true,
                      ZoomToolsVisible: true,
                      NavToolsVisible: true,
                      CursorToolsVisible: true,
                      SearchToolsVisible: true,
                      cssDirectory: '@Url.Content("~/Scripts/flexpager/")',
                      jsDirectory: '@Url.Content("~/Scripts/flexpager/")',
                      JSONDataType: 'jsonp',

                      localeChain: 'zh_CN'
                  }
              }
        );
        });
    </script>
    <style type="text/css">
        body {margin:0px; padding:0px;}
        #documentViewer {width:800px; margin:0 auto;}
    </style>
</head>
<body>
    <div id="documentViewer" class="flexpaper_viewer"></div>
</body>
</html>


5.更改路由：MVC4修改App_Start/RouteConfig.cs,MVC3修改Global.asax,修改如下

            routes.MapRoute(
                name: "Default",
                url: "{controller}/{action}/{id}",
                defaults: new { controller = "ReadPdf", action = "FileListWin", id = UrlParameter.Optional },
                namespaces: new[] { "MvcReadPdfApp.Controllers" }
            );

 

实例代码，请点击这里


下面大家可以运行一下，看一下效果了：


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