如何使用拆分逻辑批量删除文件名中带有逗号的文件

问题描述：

我们正在使用逗号(，)分隔的逻辑在物理路径中保存和删除多个文件.因此，保存时我没有任何问题，但是由于逻辑拆分，文件没有从物理路径中删除.

We are saving and deleting multiple files in a physical path with comma(,) separated logic. So, I am not getting any issue while saving but files are not deleting from the physical path due to split logic.

public ContentResult RemoveFiles(RequestModel reqModel)
    {
        var physicalPath = GetPhysicalPath(reqModel);
        var removeGroupPageId = reqModel.Get(ParamTypes.RouteData, "itemId");
        if (removeGroupPageId != "")
        {
            physicalPath = String.Concat(reqModel.Get(ParamTypes.Config, "RootDirectoryPhysical"), SessionWrapper.HomeDirectory, @"\Group", removeGroupPageId);
        }
        var files = reqModel.Get(ParamTypes.Form, "files", "").Split(",".ToCharArray(), StringSplitOptions.RemoveEmptyEntries);

        foreach (var path in files.Select(file => String.Concat(physicalPath, @"\", file)).Where(System.IO.File.Exists))
        {
            System.IO.File.Delete(path);
        }
        return Content("{ \"success\": true }", "application/json");
    }

那么，有谁知道我该如何消除这个问题?

我尝试过的事情:

我尚未尝试任何操作，但我正在寻找拆分的解决方案.

So, does anyone know how can I eliminate this issue?

What I have tried:

I''ve not tried anything yet but I am looking for a solution for splitting.

答

简单:请勿使用任何合法的字符分隔项目文件路径.如果这样做，您正在寻求问题，将很难解决.

因此，不要使用逗号分隔路径，而应使用竖线字符"|"，因为根本不允许在路径中使用该字符: ^ ]

Simple: don''t separate items with any character which is legal in a file path. If you do, you are asking for problems, which will be very difficult to resolve.

So instead of separating paths with commas, use the vertical bar character ''|'' as that is not allowed in paths at all: Naming Files, Paths, and Namespaces (Windows)[^]

public static List<string> GetFileNames(string path, string data)
{

    List<string> filenames = new List<string>();
    if (!string.IsNullOrEmpty(data))
    {
        List<string> parts = data.Split(',').ToList();
        string filename = string.Empty;
        do
        {
            filename = string.Format("{0}{1}{2}", filename, (filename.Length > 0)?",":"", parts[0]);
            if (File.Exists(System.IO.Path.Combine(path, filename)))
            {
                filenames.Add(filename);
                filename = string.Empty;
            }
            parts.RemoveAt(0);
        } while(parts.Count > 0);
    }
    return filenames;
}

用法示例:

Sample usage:

var files = "blah blah,a.xyz,blahblah.xyz";
List<string> filenames = GetFileNames(@"C:\mypath", files);
// now, do something with the resulting valid filenames (you know they're valid 
// because they wouldn't be in the list if they weren't.

注意-文件必须存在才能建立适当的名称，事后看来可能不合适.

您的替代方法-将分隔符更改为不是有效的文件名字符，例如星号，管道符号，问号等.此时，您可以简单地使用string.Split方法.

Caveat - the files must exist in order to establish the appropriate names, which, on hind sight, may not be appropriate.

Alternative for you - CHANGE the delimiter character to something that isn''t a valid filename character, such as an asterisk, pipe symbol, question mark, etc. At that point, you can simply use the string.Split method.

如何使用拆分逻辑批量删除文件名中带有逗号的文件

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