ZipFile.CreateFromDirectory throws System.IO.IOException : 该进程无法访问文件 X，因为它正被另一个进程使用

Question

实际上我正在尝试创建一个目录的 zip 文件，但是 ZipFile.CreateFromDirectory() 给出以下异常。

System.IO.IOException : The process cannot access the file PATH_TO_CREATE_ZIP/file.zip' because it is being used by another process.

以下是它的代码片段。 :

public void createZipFile(string zipPath, string archiveFileName)
{
    string DirectoryToBeArchive = zipPath + "\" + archiveFileName;

    if (Directory.Exists(DirectoryToBeArchive + ".zip"))
    {
        File.Delete(DirectoryToBeArchive);
        ZipFile.CreateFromDirectory(zipPath, DirectoryToBeArchive + ".zip", CompressionLevel.Fastest, false);
    }
    else
        ZipFile.CreateFromDirectory(zipPath, DirectoryToBeArchive + ".zip", CompressionLevel.Fastest, false);

    Directory.Delete(DirectoryToBeArchive);
}

非常感谢您的帮助。提前致谢。 :)

Answer 1

你得到这个异常才有意义。让我们逐步研究您的代码：

createZipFile("C:\Temp", "myZipFile");

public void createZipFile(string zipPath, string archiveFileName)
{
    //DirectoryToBeArchive = "C:\Temp\myZipFile"
    string DirectoryToBeArchive = zipPath + "\" + archiveFileName;

    //Some logical error here, you probably meant to use File.Exists()
    //Basically, as you can't find a directory with name C:\Temp\myZipFile.zip, you always jump into else
    if (Directory.Exists(DirectoryToBeArchive + ".zip"))
    {
        File.Delete(DirectoryToBeArchive);
        ZipFile.CreateFromDirectory(zipPath, DirectoryToBeArchive + ".zip", CompressionLevel.Fastest, false);
    }
    else
        //It will try to overwrite your existing "DirectoryToBeArchive".zip file 
        ZipFile.CreateFromDirectory(zipPath, DirectoryToBeArchive + ".zip", CompressionLevel.Fastest, false);

    //This won't work as well btw, as there probably is no directory 
    //with name C:\Temp\myZipFile
    Directory.Delete(DirectoryToBeArchive);
}

虽然，即使你删除文件，你也可能会遇到同样的错误。问题是，当您尝试将文件夹 C:\Temp 压缩到文件 C:\Temp\myZipFile.zip 中时，您也会尝试压缩文件本身。这实际上是您获取文件正在使用错误的地方。

所以，

将Directory.Exists()替换为File.Exists()
压缩到另一个文件夹
只是一个友好的警告，如果我是你的话，我会对 Directory.Delete() 保持谨慎:)

Answer 2

正确代码：

这段代码经过少量修改后对我有用..

string DirectoryToBeArchive = zipPath + "\" + archiveFileName;

            if (File.Exists(DirectoryToBeArchive + ".zip"))
            {
                File.Delete(DirectoryToBeArchive + ".zip");
                ZipFile.CreateFromDirectory(DirectoryToBeArchive, DirectoryToBeArchive + ".zip", CompressionLevel.Fastest, false);
            }
            else
                ZipFile.CreateFromDirectory(DirectoryToBeArchive, DirectoryToBeArchive + ".zip", CompressionLevel.Fastest, false);

            Directory.Delete(DirectoryToBeArchive , true);

Answer 3

我的问题是，输出文件夹和压缩文件夹相同。
移动到单独的文件夹，现在工作正常。

ZipFile.CreateFromDirectory throws System.IO.IOException : 该进程无法访问文件 X，因为它正被另一个进程使用

ZipFile.CreateFromDirectory throws System.IO.IOException : The process cannot access the file X because it is being used by another process

c#

directory

ioexception

zip