ZipFile.CreateFromDirectory引发System.IO.IOException:进程无法访问文件X
本文关键字:访问 文件 进程 引发 CreateFromDirectory System IO IOException ZipFile | 更新日期: 2023-09-27 18:00:15
实际上我正在尝试创建一个目录的zip文件,但ZipFile.CreateFromDirectory()
给出了以下异常。
System.IO.IOException:进程无法访问该文件PATH_TO_CREATE_ZIP/file.ZIP',因为它正被另一个用户使用过程
以下是它的代码段。:
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。提前感谢。:)
只有得到这个异常才有意义。让我们一步一步地研究您的代码:
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);
}
不过,即使删除了文件,也可能会遇到同样的错误。问题是,当你尝试将文件夹C:''Temp
压缩到文件C:''Temp''myZipFile.zip
中时,你也会尝试压缩文件本身。这实际上就是你得到文件被使用错误的地方。
所以,
将Directory.Exists()替换为File.Exists()
在另一个文件夹中压缩
只是一个友好的警告,如果我是你的话,我会对Directory.Delete()持谨慎态度:)
我的问题是,输出文件夹和压缩文件夹是相同的
移动到不同的文件夹,现在工作正常。
正确代码:
这段代码经过一点修改后对我有效。
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);