Question

我有几个由文件夹路径组成的文件，看起来像

//Fs1/userA/
//Fs1/userA/documents/
//Fs1/userB/
//Fs2/userC/documents

我想分析哪些文件夹有x个直接子文件夹。例如。 userD直接在其下有120个子文件夹，不包括更深层的文件夹。

我收集了大量此类文件，其中一些文件包含几百k行。

我曾想过使用基数树，但如果我必须遍历所有子项以查找直接子文件夹的数量，它就不会执行。

还考虑将其放入数据库服务器进行查询，这可能更容易实现，但我想尝试使用.Net进行分析而不使用sql server。有什么帮助吗？

Answer 1

我接受了我的xml项目并删除了xml。现在我得到总数。也许这对你有用。代码检查所有文件的文件夹和子文件夹，当文件大小或数量超过限制时，将结果放入树视图中。

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.IO;

namespace CheckFileSizes
{
    public partial class Form1 : Form
    {
        const int FILE_SIZE_CHECK = 10000000;
        const int FILE_COUNT_CHECK = 1000;
        public Form1()
        {
            InitializeComponent();

            folderBrowserDialog1.SelectedPath = @"c:\temp";
            textBoxTotalFolderSizeMin.Text = FILE_SIZE_CHECK.ToString();
            textBoxNumberOfFilesMin.Text = FILE_COUNT_CHECK.ToString();

        }
        private void buttonBrowseForFolder_Click(object sender, EventArgs e)
        {
            folderBrowserDialog1.ShowDialog();
            textBoxFolderName.Text = folderBrowserDialog1.SelectedPath;
        }

        private void buttonMakeTree_Click(object sender, EventArgs e)
        {
            if (Directory.Exists(textBoxFolderName.Text))
            {
                MyDirectory root = MyDirectory.root;

                TreeNode rootNode = MakeTreeRecursive(textBoxFolderName.Text, root);
                textBoxTotalNumberOfFiles.Text = root.totalNumberOfFiles.ToString();
                textBoxTotalSize.Text = ((long)root.totalSize).ToString();

                if (rootNode == null)
                {
                    string rootNodeText = string.Format("Folder: '{0}', Number of Files: '{1}', File Size: '{2}'",
                        textBoxFolderName.Text,
                        textBoxTotalNumberOfFiles.Text,
                        textBoxTotalSize.Text
                    );
                    rootNode = new TreeNode(rootNodeText);
                }
                treeView1.Nodes.Add(rootNode);
                treeView1.ExpandAll();


            }
        }
        private TreeNode MakeTreeRecursive(string folder, MyDirectory myDirectory)
        {
            TreeNode node = null;

            myDirectory.name = folder.Substring(folder.LastIndexOf("\\") + 1);

            DirectoryInfo dInfo = new DirectoryInfo(folder);

            myDirectory.numberOfFiles = 0;
            myDirectory.size = 0.0f;

            foreach (FileInfo fInfo in dInfo.GetFiles())
            {
                try
                {
                    float fSize = fInfo.Length;
                    myDirectory.size += fSize;
                    myDirectory.numberOfFiles += 1;
                }
                catch (Exception e)
                {
                    Console.WriteLine("Error : CAnnot Access File '{0}'", fInfo.Name);
                }
            }
            myDirectory.totalSize = myDirectory.size;
            myDirectory.totalNumberOfFiles = myDirectory.numberOfFiles;
            foreach (string subFolder in Directory.GetDirectories(folder))
            {
                if (myDirectory.children == null) myDirectory.children = new List<MyDirectory>();
                MyDirectory childDirectory = new MyDirectory();
                myDirectory.children.Add(childDirectory);

                TreeNode childNode = MakeTreeRecursive(subFolder, childDirectory);
                if (childNode != null)
                {
                    if (node == null)
                    {
                        node = new TreeNode();
                    }
                    node.Nodes.Add(childNode);
                }

                myDirectory.totalSize += childDirectory.totalSize;
                myDirectory.totalNumberOfFiles += childDirectory.totalNumberOfFiles;
            }

            if ((myDirectory.totalNumberOfFiles >= long.Parse(textBoxNumberOfFilesMin.Text)) || myDirectory.totalSize >= float.Parse(textBoxTotalFolderSizeMin.Text))
            {
                if (node == null)
                {
                    node = new TreeNode();
                }
                string childNodeText = string.Format("Folder: '{0}', Number of Files: '{1}', File Size: '{2}'",
                    folder,
                    myDirectory.totalNumberOfFiles,
                    myDirectory.totalSize
                );
                node.Text =  childNodeText;
            }
            return node;
        }

    }
    public class MyDirectory
    {
        public static MyDirectory root = new MyDirectory();
        public List<MyDirectory> children { get; set; }

        public string name { get; set; }
        public long totalNumberOfFiles = 0;
        public int numberOfFiles = 0;
        public float size = 0.0f;
        public float totalSize = 0.0f;
    }
}

导入目录文本以创建树结构

1 个答案: