Question

foreach(DriveInfo d in DriveInfo.GetDrives().Where(x => x.IsReady == true))
{
    try
    {
        string[] files = Directory.GetFiles(d.RootDirectory.ToString(), fileName, SearchOption.AllDirectories);

        foreach(string file in files)
        {
            Console.WriteLine(file);
        }
    }
    catch(exception ex)
    {

    }
}

看起来很简单，除了我不断获得System.unauthorizedaccessexception。

所以我尝试编写一个linq语句来检查所有没有系统标志的文件并将其返回到列表中。

var folderFound = new DirectoryInfo(d.RootDirectory.ToString())
   .GetFiles()
   .Where(f => !f.Attributes.HasFlag(FileAttributes.System) && f.Name == fileName)
   .Select(f => f.Name)
   .ToList();

但它的工作不正常。它也不会检查所有目录。我如何解决我的问题？

我没有解决我的问题无法使用linq语句

foreach(DriveInfo d in DriveInfo.GetDrives().Where(x => x.IsReady == true))
                    {

                        Stack<DirectoryInfo> dirstack = new Stack<DirectoryInfo>();

                        dirstack.Push(new DirectoryInfo(d.RootDirectory.ToString()));

                        while(dirstack.Count > 0)
                        {
                            DirectoryInfo current = dirstack.Pop();

                            foreach (DirectoryInfo di in current.GetDirectories())
                            {
                                if((di.Attributes & FileAttributes.System) != FileAttributes.System)
                                {
                                    dirstack.Push(di);
                                }
                            }


                            foreach (FileInfo f in current.GetFiles())
                            {
                                if (f.Name == fileName)
                                {
                                    fList.Add(f);
                                }
                            }
                        }

我正在尝试下面评论中的那个，但是一击到

var dirs = di.EnumerateDirectories();

它正在抛出System.UnauthorizedAccessException。如果我有能力操作，我甚至没有能力阅读。我猜测是怎么回事。

Answer 1

var folderFound = new DirectoryInfo(d.RootDirectory.ToString())
   .GetFiles("*",SearchOption.AllDirectories)
   .Where(f => !f.Attributes.HasFlag(FileAttributes.System) && f.Name == fileName)
   .Select(f => f.Name)
   .ToList();

更新尝试这种递归方法。在stackoverflow上找到了某个地方。这会抓住并继续留下来。

public static List<string> GetAllAccessibleFiles(string rootPath, List<string> alreadyFound = null)
    {
        if (alreadyFound == null)
            alreadyFound = new List<string>();
        DirectoryInfo di = new DirectoryInfo(rootPath);
        var dirs = di.EnumerateDirectories();
        foreach (DirectoryInfo dir in dirs)
        {
            if (!((dir.Attributes & FileAttributes.Hidden) == FileAttributes.Hidden))
            {
                alreadyFound = GetAllAccessibleFiles(dir.FullName, alreadyFound);
            }
        }

        var files = Directory.GetFiles(rootPath);
        foreach (string s in files)
        {
            alreadyFound.Add(s);                
        }

        return alreadyFound;
    }

无法在所有文件中搜索具有特定名称的文件

1 个答案: