Question

此代码（chunk.feeddata）返回流不可读错误。我不知道为什么会发生。文件具有所有权限。有没有办法解决它。欢迎所有建议。代码只是尝试将第一个文件复制到输出文件，然后将下一个文件追加到输出文件的末尾。

public  void Merge()
{  
    try
    {
        string Temps = Server.MapPath(...);    //create folder

        if (!Directory.Exists(Temps))
        {
            Directory.CreateDirectory(Temps);
        }

        string output = Path.Combine(Temps + ....+ ".doc");
        string sid = Request.QueryString["id"];
        string stud = sid.ToString();

        string ds = HttpContext.Current.Request.MapPath(......);
        DirectoryInfo dinfo = new DirectoryInfo(ds);
        DirectorySecurity dSecurity = dinfo.GetAccessControl();
        dSecurity.AddAccessRule(new FileSystemAccessRule(new SecurityIdentifier(WellKnownSidType.WorldSid, null), FileSystemRights.FullControl, InheritanceFlags.ObjectInherit | InheritanceFlags.ContainerInherit, PropagationFlags.NoPropagateInherit, AccessControlType.Allow));
        dinfo.SetAccessControl(dSecurity);
        if (Directory.Exists(ds))
        {
            DirectoryInfo d = new DirectoryInfo(ds);
            FileInfo[] Files = d.GetFiles("*" + stud + "*.docx");


            string[] filepaths = new string[Files.Length];
            int index = 0;

            foreach (FileInfo file in Files)
            {
                filepaths[index] = file.FullName;
                index++;
            }


            File.Delete(output);
            File.Copy(filepaths[0], output);
            for (int i = 1; i < filepaths.Length; i++)
            {
               using (WordprocessingDocument myDoc = WordprocessingDocument.Open(output, true))
                {
                    string altChunkId = "AltChunkId1_" + i;
                    MainDocumentPart mainPart = myDoc.MainDocumentPart;
                    AlternativeFormatImportPart chunk = mainPart.AddAlternativeFormatImportPart(AlternativeFormatImportPartType.WordprocessingML, altChunkId); 

                    FileStream fileStream = File.Open(@filepaths[i], FileMode.Append);
                    {
                        chunk.FeedData(fileStream);
                    } 
                    DocumentFormat.OpenXml.Wordprocessing.AltChunk altChunk = new DocumentFormat.OpenXml.Wordprocessing.AltChunk();
                    altChunk.Id = altChunkId;
                    mainPart.Document
                            .Body
                            .InsertAfter(altChunk, mainPart.Document.Body
                            .Elements<DocumentFormat.OpenXml.Wordprocessing.Paragraph>().Last());
                    mainPart.Document.Save();
                   if(fileStream!=null)
                     fileStream.Dispose();
                }


            }
        }
    }
    catch (Exception ex)
    {
    }
}

Answer 1

你看过这些文章了吗？ http://www.c-sharpcorner.com/forums/merge-multiple-word-documents-in-c-sharp-with-same-format

https://www.codeproject.com/Articles/7582/Merging-Word-Documents-with-C

using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace FileAppending
{
    class Program
    {
        static void Main(string[] args)
        {


            string[] doc1 =             File.ReadAllLines("C:\\FileAppending\\FileAppending\\Doc1.Docx");
        string[] doc2 =     File.ReadAllLines("C:\\FileAppending\\FileAppending\\Doc2.Docx");


               File.WriteAllLines("C:\\FileAppending\\FileAppending\\Doc3.Docx", doc1);
               File.AppendAllLines("C:\\FileAppending\\FileAppending\\Doc3.Docx", doc2);



        }
    }
}

Answer 2

我认为文件末尾的所有文件都有EOF（文件结尾）标记。可能这是没有附加的原因。

流不可读错误

2 个答案: