高分巨型疑难问题，关于Office与PDF

[cejay]

这个是真的遇到难题了，
现在需要一个功能，我作为一个小程序猿实在搞不定了，特来程序猿社区求助，救救小猿吧。

需求：

用asp.net做的项目，有一个功能要求是 上传word、excel、ppt、pdf 的时候需要在服务器生成一张文档的截图，
截图是截取文档第一页的一半。这个功能搞了两天了还没搞定。

求助

[以专业开发人员为伍]

程序猿就算了。一个团队如果不用外人，那么只能干个OA项目而已。

[cejay]

还有，就是office 是有2003版和2007版的

[cejay]

[Quote=引用 1 楼 sp1234 的回复:]

程序猿就算了。一个团队如果不用外人，那么只能干个OA项目而已。
[/Quote]
唉。。。

[一片冰心在玉壶]

到这看看
http://topic.csdn.net/u/20090304/14/833e7d98-07bf-4b72-a344-ef91bfa6812a.html

[cejay]

[Quote=引用 4 楼 mockqi 的回复:]

到这看看
http://topic.csdn.net/u/20090304/14/833e7d98-07bf-4b72-a344-ef91bfa6812a.html
[/Quote]
谢啦，看过了，这个是截取屏幕，我怕服务器同时上传好多文档的时候会出问题，我再试试看

[xiuyer]

关注。。。。帮顶。我也很想知道这个该怎么做。

[War3_Fan]

截图？真能折磨人

[心灵彩虹]

幽默很[Quote=引用 1 楼 sp1234 的回复:]
程序猿就算了。一个团队如果不用外人，那么只能干个OA项目而已。
[/Quote]

[baobingbing2]

这想法不错啊，关注、、

[cejay]

已经成功生成出word 第一页图片：
代码：

using System;
using System.Drawing.Printing;
using System.Management;

namespace CatchOffice
{
    public partial class _Default : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {

        }
        private void setprinter()
        {
            if (new PrintDocument().PrinterSettings.PrinterName != "Microsoft Office Document Image Writer")
            {
                query = new ManagementObjectSearcher(_classname);
                queryCollection = query.Get();
                foreach (ManagementObject mo in queryCollection)
                {
                    if (string.Compare(mo["Name"].ToString(), @"Microsoft Office Document Image Writer", true) == 0)
                    {
                        mo.InvokeMethod("SetDefaultPrinter", null);
                        break;
                    }
                }
            }
        }

        private ManagementObjectSearcher query;
        private ManagementObjectCollection queryCollection;
        string _classname = "SELECT * FROM Win32_Printer";


        /// <summary>
        /// word
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        protected void Button1_Click(object sender, EventArgs e)
        {
            setprinter();

            Microsoft.Office.Interop.Word.ApplicationClass wordApp = new Microsoft.Office.Interop.Word.ApplicationClass();
            object file = "E:\\XXXXX.docx";
            object nullobj = System.Reflection.Missing.Value;
            Microsoft.Office.Interop.Word.Document doc = wordApp.Documents.Open(
                ref file, ref nullobj, ref nullobj
                , ref nullobj, ref nullobj, ref nullobj, ref nullobj
                , ref nullobj, ref nullobj, ref nullobj, ref nullobj
                , ref nullobj, ref nullobj, ref nullobj, ref nullobj, ref nullobj);


            object outtiffile = "C:\\1.tif";

            object copies = "1";
            object pages = "1";
            object range = Microsoft.Office.Interop.Word.WdPrintOutRange.wdPrintCurrentPage;
            object items = Microsoft.Office.Interop.Word.WdPrintOutItem.wdPrintDocumentContent;
            object pageType = Microsoft.Office.Interop.Word.WdPrintOutPages.wdPrintAllPages;
            object oTrue = true;
            object oFalse = false;
            object missing = System.Reflection.Missing.Value;

            doc.PrintOut(
                ref oTrue, ref oFalse, ref range, ref outtiffile, ref missing, ref missing,
                ref items, ref copies, ref pages, ref pageType, ref oTrue, ref oTrue,
                ref missing, ref oFalse, ref missing, ref missing, ref missing, ref missing);
            GC.Collect();
        }





        /// <summary>
        /// excel
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        protected void Button2_Click(object sender, EventArgs e)
        {

        }


        /// <summary>
        /// ppt
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        protected void Button3_Click(object sender, EventArgs e)
        {

        }

    }

}

除了引用office之外 还要引用System.Management

[cejay]

对了还需要安装Microsoft Office Document Imaging
方法：http://support.microsoft.com/kb/926198/zh-cn

[子夜__]

PDF呢？

[cejay]

[Quote=引用 12 楼 wxr0323 的回复:]

PDF呢？
[/Quote]
PDF还没开始弄。。。

[weike021996]

学习学习

[myhope88]

感觉不太好弄啊，帮顶下

[失去乐山贼]

[Quote=引用 1 楼 sp1234 的回复:]

程序猿就算了。一个团队如果不用外人，那么只能干个OA项目而已。
[/Quote]
+1

[crackdung]

轉換到flash，非常簡單，而且通用。。。

網站


my blog
http://ufo-crackerx.blog.163.com/

[cejay]

自己解决了：附上完整方案
前台页面：

<asp:Button ID="Button1" runat="server" OnClick="Button1_Click" Text="生成word缩略图" />
        <asp:Button ID="Button2" runat="server" OnClick="Button2_Click" Text="生成excel缩略图" />
        <asp:Button ID="Button3" runat="server" OnClick="Button3_Click" Text="生成ppt缩略图" /> 
        <asp:Button ID="Button4" runat="server" Text="转换tif图片为jpg" 
            onclick="Button4_Click" />
        <asp:Button ID="Button5" runat="server" Text="生成pdf缩略图" 
            onclick="Button5_Click" />

后台代码：

using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.Drawing;
using System.Drawing.Imaging;
using System.Drawing.Printing;
using System.IO;
using System.Management;
using Microsoft.Office.Interop.Excel;
using Microsoft.Office.Interop.PowerPoint;

namespace CatchOffice
{
    public partial class _Default : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {

        }
        private void setprinter()
        {
            if (new PrintDocument().PrinterSettings.PrinterName != "Microsoft Office Document Image Writer")
            {
                bool isfindprinter = false;
                query = new ManagementObjectSearcher(_classname);
                queryCollection = query.Get();
                foreach (ManagementObject mo in queryCollection)
                {
                    if (string.Compare(mo["Name"].ToString(), @"Microsoft Office Document Image Writer", true) == 0)
                    {
                        mo.InvokeMethod("SetDefaultPrinter", null);
                        isfindprinter = true;
                        break;
                    }
                }
                if (!isfindprinter)
                {
                    throw new Exception("没有发现Microsoft Office Document Image Writer虚拟打印机  终止");
                }
            }
        }

        private ManagementObjectSearcher query;
        private ManagementObjectCollection queryCollection;
        string _classname = "SELECT * FROM Win32_Printer";


        /// <summary>
        /// word
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        protected void Button1_Click(object sender, EventArgs e)
        {
            setprinter();



            Microsoft.Office.Interop.Word.ApplicationClass wordApp = new Microsoft.Office.Interop.Word.ApplicationClass();



            object file = "E:\\自学资料\\ASP.NET_MVC_完全解析篇.docx";
            object nullobj = System.Reflection.Missing.Value;
            object oreadonly = true;


            Microsoft.Office.Interop.Word.Document doc = wordApp.Documents.Open(
                ref file, ref nullobj, ref oreadonly
                , ref nullobj, ref nullobj, ref nullobj, ref nullobj
                , ref nullobj, ref nullobj, ref nullobj, ref nullobj
                , ref nullobj, ref nullobj, ref nullobj, ref nullobj, ref nullobj);


            object outtiffile = "C:\\1.tif";

            object copies = "1";
            object pages = "1";
            object range = Microsoft.Office.Interop.Word.WdPrintOutRange.wdPrintCurrentPage;
            object items = Microsoft.Office.Interop.Word.WdPrintOutItem.wdPrintDocumentContent;
            object pageType = Microsoft.Office.Interop.Word.WdPrintOutPages.wdPrintAllPages;
            object oTrue = true;
            object oFalse = false;
            object missing = System.Reflection.Missing.Value;
            object from = missing;
            object to = missing;

            doc.PrintOut(
                ref oTrue, ref oFalse, ref range, ref outtiffile, ref from, ref to,
                ref items, ref copies, ref pages, ref pageType, ref oTrue, ref oTrue,
                ref missing, ref oFalse, ref missing, ref missing, ref missing, ref missing);
            doc.Close(ref missing, ref missing, ref missing);
            GC.Collect();
        }





        /// <summary>
        /// excel
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        protected void Button2_Click(object sender, EventArgs e)
        {
            Microsoft.Office.Interop.Excel.ApplicationClass excel = new Microsoft.Office.Interop.Excel.ApplicationClass();
            Workbook mybook = excel.Workbooks.Add("G:\\Book1.xlsx");


            Worksheet mysheet = (Microsoft.Office.Interop.Excel.Worksheet)mybook.Worksheets[1];
            object oTrue = true;
            object oFalse = false;
            object outtiffile = "C:\\2.tif";
            object missing = System.Reflection.Missing.Value;

            mysheet.PrintOut(missing, missing, missing, oFalse, Type.Missing, oTrue, oFalse, outtiffile);//打印文件
            mybook.Close(false, Type.Missing, Type.Missing);
            excel.Quit();
            mybook = null;
            mysheet = null;
            excel = null;
            System.GC.Collect();
        }


        /// <summary>
        /// ppt
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        protected void Button3_Click(object sender, EventArgs e)
        {
            string sourceFile = "G:\\演示文稿2.pptx";

            string outfile = "C:\\3.tif";
            //定义powerpoint实例对象
            Microsoft.Office.Interop.PowerPoint.Application varppt = new Microsoft.Office.Interop.PowerPoint.ApplicationClass();

            //定义powerpoint文档实例对象


            Microsoft.Office.Interop.PowerPoint.Presentation ppt = varppt.Presentations.Open((string)sourceFile, Microsoft.Office.Core.MsoTriState.msoFalse,
            Microsoft.Office.Core.MsoTriState.msoFalse,
            Microsoft.Office.Core.MsoTriState.msoFalse);
            ppt.PrintOptions.PrintInBackground = Microsoft.Office.Core.MsoTriState.msoTrue;
            ppt.PrintOptions.OutputType = PpPrintOutputType.ppPrintOutputSlides; ppt.PrintOut(
                 1,
                 1,
                 outfile,
                 1, Microsoft.Office.Core.MsoTriState.msoTriStateMixed);
            ppt.Close();
            varppt.Quit();
            System.GC.Collect();
        }

        protected void Button4_Click(object sender, EventArgs e)
        {
            string tifpath = "C:\\3.tif";
            string jpgpath = "C:\\3.jpg";

            System.IO.FileStream stream;

            stream = File.OpenRead(tifpath);

            Bitmap bmp = new Bitmap(stream);

            System.Drawing.Image image = bmp;//得到原图

            //创建指定大小的图

            //System.Drawing.Image newImage = image.GetThumbnailImage(bmp.Width, bmp.Height, null, new IntPtr());
            System.Drawing.Image newImage = image.GetThumbnailImage(50, 60, null, new IntPtr());


            Graphics g = Graphics.FromImage(newImage);

            g.DrawImage(newImage, 0, 0, newImage.Width, newImage.Height); //将原图画到指定的图上

            g.Dispose();

            stream.Close();

            newImage.Save(jpgpath, ImageFormat.Jpeg);
            newImage.Dispose();
        }

        protected void Button5_Click(object sender, EventArgs e)
        {
            IList<string> list = GenerateThumbnailImage("C:\\1.pdf", false, "C:\\pdf.jpg");
        }

        public IList<string> GenerateThumbnailImage(string InputFile, bool deletePDF, string filename)
        {
            return GenerateImage(InputFile, deletePDF, filename, "-dSAFER -dBATCH -dNOPAUSE -dFirstPage=1 -dLastPage=1 -r150 -sDEVICE=jpeg -dGraphicsAlphaBits=4");
        }



        private IList<string> GenerateImage(string InputFile, bool deletePDF, string OutputFile, string Arguments)
        {
            IList<string> result = new List<string>();
            string ExtOut = Path.GetExtension(OutputFile);
            string partOut = OutputFile.Remove(OutputFile.Length - ExtOut.Length, ExtOut.Length);

            OutputFile = partOut + ".jpg";
            result.Add(OutputFile);
            if (File.Exists(OutputFile))
            {
                File.Delete(OutputFile);
            }

            ProcessStartInfo info = new ProcessStartInfo();
            info.CreateNoWindow = true;
            info.WindowStyle = ProcessWindowStyle.Normal;
            //http://sourceforge.net/projects/ghostscript/files/
            //info.WorkingDirectory = System.Configuration.ConfigurationManager.AppSettings["GhostScriptView"];
            info.WorkingDirectory = @"C:\Program Files\gs\gs9.02\bin";
            info.Arguments = Arguments + @" -sOutputFile=" + OutputFile + "  " + InputFile;
            info.FileName = @"gswin32c.exe";
            Process subProcess = new Process();
            subProcess.StartInfo = info;
            subProcess.Start();
            subProcess.WaitForExit(int.MaxValue);
            if (deletePDF)
            {
                System.IO.File.Delete(InputFile);
            }
            return result;

        }

    }

}

office与pdf 截取第一页图片终于好了，哈