获取文件递归：跳过无法读取的文件/目录？ [英] Getting files recursively: skip files/directories that cannot be read?

问题描述

我想获得的所有目录中的文件的一个数组（包括子文件夹中的文件）

I want to get all of the files in a directory in an array (including the files in subfolders)

string[] filePaths = Directory.GetFiles(@"c:\",SearchOption.AllDirectories);     

这里的问题是：如果抛出一个异常，整个命令停止。有没有更好的办法做到这一点，这样，如果一个文件夹不能访问它只是跳过了吗？

The problem with this is: If an exception is thrown the entire command stops. Is there a better way to do this so that if a folder cannot be accessed it will just skip over it?

推荐答案

您可能不得不多做一点打字自己，那么，写一个目录漫步者像这样的：

You'd probably have to do a bit more typing yourself then, and write a directory walker like this one:

    public static string[] FindAllFiles(string rootDir) {
        var pathsToSearch = new Queue<string>();
        var foundFiles = new List<string>();

        pathsToSearch.Enqueue(rootDir);

        while (pathsToSearch.Count > 0) {
            var dir = pathsToSearch.Dequeue();

            try {
                var files = Directory.GetFiles(dir);
                foreach (var file in Directory.GetFiles(dir)) {
                    foundFiles.Add(file);
                }

                foreach (var subDir in Directory.GetDirectories(dir)) {
                    pathsToSearch.Enqueue(subDir);
                }

            } catch (Exception /* TODO: catch correct exception */) {
                // Swallow.  Gulp!
            }
        }

        return foundFiles.ToArray();
    }

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