Directory.Move不起作用(文件已经存在) [英] Directory.Move doesn't work (file already exist)
问题描述
我有主文件夹:
C:\\测试
和有我有2个文件夹:电影和照片
照片与具有相同结构的文件三个文件夹:人物,动物和建筑物。我想这code:
Directory.Move(@C:\\测试\\电影,@C:\\测试\\测试);
我得到异常:
文件已存在
此方法将移动递归文件夹的内容,并覆盖现有文件。
你应该添加一些异常处理。
编辑:
这种方法是用while循环和堆栈代替递归实现。
公共静态无效MoveDirectory(字符串源,目标字符串)
{
VAR堆栈=新的堆栈<&文件夹GT;();
stack.Push(新文件夹(源,目标)); 而(stack.Count大于0)
{
变种夹= stack.Pop();
Directory.CreateDirectory(folders.Target);
的foreach(在Directory.GetFiles(folders.Source,var文件*。*))
{
字符串的TargetFile = Path.Combine(folders.Target,Path.GetFileName(文件));
如果(File.Exists(的TargetFile))File.Delete(的TargetFile);
File.Move(文件的TargetFile);
} 的foreach(在Directory.GetDirectories VAR文件夹(folders.Source))
{
stack.Push(新文件夹(文件夹,Path.Combine(folders.Target,Path.GetFileName(文件夹))));
}
}
Directory.Delete(源,真正的);
}
公共类文件夹
{
公共字符串源{搞定;私人集; }
公共字符串目标{搞定;私人集; } 公共文件夹(源字符串,目标字符串)
{
来源=来源;
目标=目标;
}
}
更新:结果
这是一个简单的版本与使用 Directory.EnumerateFiles
递归而不是使用堆栈。结果
这只会在.NET 4中工作或更高版本,我们将其与.NET变化的早期版本 Directory.EnumerateFiles
到 Directory.GetFiles
。
公共静态无效MoveDirectory(字符串源,目标字符串)
{
VAR SOURCEPATH = source.TrimEnd('\\\\','');
VAR TARGETPATH = target.TrimEnd('\\\\','');
var中的文件= Directory.EnumerateFiles(SOURCEPATH,*,SearchOption.AllDirectories)
.GroupBy(S => Path.GetDirectoryName(S));
的foreach(在文件夹VAR)
{
VAR targetFolder = folder.Key.Replace(SOURCEPATH,TARGETPATH);
Directory.CreateDirectory(targetFolder);
的foreach(文件夹var文件)
{
变种的TargetFile = Path.Combine(targetFolder,Path.GetFileName(文件));
如果(File.Exists(的TargetFile))File.Delete(的TargetFile);
File.Move(文件的TargetFile);
}
}
Directory.Delete(源,真正的);
}
I've got main folder:
c:\test
And there I have 2 folders: Movies and Photos.
Photos has three folders with files with the same structure: People, Animals and Buildings. I'm trying this code:
Directory.Move(@"c:\test\Movies", @"c:\test\Test");
I get exception:
File already exists
This method will move content of a folder recursively and overwrite existing files.
You should add some exception handling.
Edit:
This method is implemented with a while loop and a stack instead of recursion.
public static void MoveDirectory(string source, string target)
{
var stack = new Stack<Folders>();
stack.Push(new Folders(source, target));
while (stack.Count > 0)
{
var folders = stack.Pop();
Directory.CreateDirectory(folders.Target);
foreach (var file in Directory.GetFiles(folders.Source, "*.*"))
{
string targetFile = Path.Combine(folders.Target, Path.GetFileName(file));
if (File.Exists(targetFile)) File.Delete(targetFile);
File.Move(file, targetFile);
}
foreach (var folder in Directory.GetDirectories(folders.Source))
{
stack.Push(new Folders(folder, Path.Combine(folders.Target, Path.GetFileName(folder))));
}
}
Directory.Delete(source, true);
}
public class Folders
{
public string Source { get; private set; }
public string Target { get; private set; }
public Folders(string source, string target)
{
Source = source;
Target = target;
}
}
Update:
This is a simpler version with the use of Directory.EnumerateFiles
recursively instead of using a stack.
This will only work with .net 4 or later, to us it with an earlier version of .net change Directory.EnumerateFiles
to Directory.GetFiles
.
public static void MoveDirectory(string source, string target)
{
var sourcePath = source.TrimEnd('\\', ' ');
var targetPath = target.TrimEnd('\\', ' ');
var files = Directory.EnumerateFiles(sourcePath, "*", SearchOption.AllDirectories)
.GroupBy(s=> Path.GetDirectoryName(s));
foreach (var folder in files)
{
var targetFolder = folder.Key.Replace(sourcePath, targetPath);
Directory.CreateDirectory(targetFolder);
foreach (var file in folder)
{
var targetFile = Path.Combine(targetFolder, Path.GetFileName(file));
if (File.Exists(targetFile)) File.Delete(targetFile);
File.Move(file, targetFile);
}
}
Directory.Delete(source, true);
}
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