分享一个收集到的文件和目录操作类FileSystemObject

朴灿烈づ我的快乐病毒、 2022-01-05 03:49 174阅读 0赞

using System; 
using System.Collections.Generic; 
using System.Text; 
using System.IO; 
using System.Data; 
using System.Web; 
 
public abstract class FileSystemObject 
\{ 
// Methods 
protected FileSystemObject() 
\{ 
\} 
 
public static string ConvertSizeToShow(int fileSize) 
\{ 
int num = fileSize / 0x400; 
if (num < 1) 
\{ 
return (fileSize.ToString() + "&nbsp;&nbsp;B"); 
\} 
if (num < 0x400) 
\{ 
return (num.ToString() + "&nbsp;KB"); 
\} 
int num2 = num / 0x400; 
if (num2 < 1) 
\{ 
return (num.ToString() + "&nbsp;KB"); 
\} 
if (num2 >= 0x400) 
\{ 
num2 /= 0x400; 
return (num2.ToString() + "&nbsp;GB"); 
\} 
return (num2.ToString() + "&nbsp;MB"); 
\} 
 
public static void CopyDirectory(string oldDir, string newDir) 
\{ 
DirectoryInfo od = new DirectoryInfo(oldDir); 
CopyDirInfo(od, oldDir, newDir); 
\} 
 
private static void CopyDirInfo(DirectoryInfo od, string oldDir, string newDir) 
\{ 
if (!DirIsExist(newDir)) 
\{ 
Create(newDir, FsoMethod.Folder); 
\} 
foreach (DirectoryInfo info in od.GetDirectories()) 
\{ 
CopyDirInfo(info, info.FullName, newDir + info.FullName.Replace(oldDir, "")); 
\} 
foreach (FileInfo info2 in od.GetFiles()) 
\{ 
CopyFile(info2.FullName, newDir + info2.FullName.Replace(oldDir, "")); 
\} 
\} 
 
public static DataTable CopyDT(DataTable parent, DataTable child) 
\{ 
for (int i = 0; i < child.Rows.Count; i++) 
\{ 
DataRow row = parent.NewRow(); 
for (int j = 0; j < parent.Columns.Count; j++) 
\{ 
row\[j\] = child.Rows\[i\]\[j\]; 
\} 
parent.Rows.Add(row); 
\} 
return parent; 
\} 
 
public static void CopyFile(string oldFile, string newFile) 
\{ 
File.Copy(oldFile, newFile, true); 
\} 
 
public static bool CopyFileStream(string oldPath, string newPath) 
\{ 
try 
\{ 
FileStream input = new FileStream(oldPath, FileMode.Open, FileAccess.Read); 
FileStream output = new FileStream(newPath, FileMode.Create, FileAccess.Write); 
BinaryReader reader = new BinaryReader(input); 
BinaryWriter writer = new BinaryWriter(output); 
reader.BaseStream.Seek(0L, SeekOrigin.Begin); 
reader.BaseStream.Seek(0L, SeekOrigin.End); 
while (reader.BaseStream.Position < reader.BaseStream.Length) 
\{ 
writer.Write(reader.ReadByte()); 
\} 
reader.Close(); 
writer.Close(); 
input.Flush(); 
input.Close(); 
output.Flush(); 
output.Close(); 
return true; 
\} 
catch 
\{ 
return false; 
\} 
\} 
 
public static void Create(string file, FsoMethod method) 
\{ 
try 
\{ 
if (method == FsoMethod.File) 
\{ 
WriteFile(file, ""); 
\} 
else if (method == FsoMethod.Folder) 
\{ 
Directory.CreateDirectory(file); 
\} 
\} 
catch 
\{ 
throw new UnauthorizedAccessException("没有权限！"); 
\} 
\} 
 
 
 
 
/// <summary> 
/// 创建目录 
/// </summary> 
/// <param name="dirPath">相对路径</param> 
/// <returns>是否成功</returns> 
public static bool CreateDirectory(string dirPath) 
\{ 
if (string.IsNullOrEmpty(dirPath)) 
return false; 
dirPath = HttpContext.Current.Server.MapPath(dirPath); 
DirectoryInfo dirInfo = new DirectoryInfo(dirPath); 
if (dirInfo.Exists) 
return true; 
try 
\{ 
Directory.CreateDirectory(dirPath); 
return true; 
\} 
catch 
\{ 
return false; 
\} 
\} 
 
 
public static void Delete(string file, FsoMethod method) 
\{ 
if ((method == FsoMethod.File) && File.Exists(file)) 
\{ 
File.Delete(file); 
\} 
if ((method == FsoMethod.Folder) && Directory.Exists(file)) 
\{ 
Directory.Delete(file, true); 
\} 
\} 
 
private static long\[\] DirInfo(DirectoryInfo d) 
\{ 
long\[\] numArray = new long\[3\]; 
long num = 0L; 
long num2 = 0L; 
long num3 = 0L; 
FileInfo\[\] files = d.GetFiles(); 
num3 += files.Length; 
foreach (FileInfo info in files) 
\{ 
num += info.Length; 
\} 
DirectoryInfo\[\] directories = d.GetDirectories(); 
num2 += directories.Length; 
foreach (DirectoryInfo info2 in directories) 
\{ 
num += DirInfo(info2)\[0\]; 
num2 += DirInfo(info2)\[1\]; 
num3 += DirInfo(info2)\[2\]; 
\} 
numArray\[0\] = num; 
numArray\[1\] = num2; 
numArray\[2\] = num3; 
return numArray; 
\} 
 
private static DataTable GetDirectoryAllInfo(DirectoryInfo d, FsoMethod method) 
\{ 
DataRow row; 
DataTable parent = new DataTable(); 
parent.Columns.Add("name"); 
parent.Columns.Add("rname"); 
parent.Columns.Add("content\_type"); 
parent.Columns.Add("type"); 
parent.Columns.Add("path"); 
parent.Columns.Add("creatime", typeof(DateTime)); 
parent.Columns.Add("size", typeof(int)); 
foreach (DirectoryInfo info in d.GetDirectories()) 
\{ 
if (method == FsoMethod.File) 
\{ 
parent = CopyDT(parent, GetDirectoryAllInfo(info, method)); 
\} 
else 
\{ 
row = parent.NewRow(); 
row\[0\] = info.Name; 
row\[1\] = info.FullName; 
row\[2\] = ""; 
row\[3\] = 1; 
row\[4\] = info.FullName.Replace(info.Name, ""); 
row\[5\] = info.CreationTime; 
row\[6\] = ""; 
parent.Rows.Add(row); 
parent = CopyDT(parent, GetDirectoryAllInfo(info, method)); 
\} 
\} 
if (method != FsoMethod.Folder) 
\{ 
foreach (FileInfo info2 in d.GetFiles()) 
\{ 
row = parent.NewRow(); 
row\[0\] = info2.Name; 
row\[1\] = info2.FullName; 
row\[2\] = info2.Extension.Replace(".", ""); 
row\[3\] = 2; 
row\[4\] = info2.DirectoryName + @"\\"; 
row\[5\] = info2.CreationTime; 
row\[6\] = info2.Length; 
parent.Rows.Add(row); 
\} 
\} 
return parent; 
\} 
 
public static DataTable GetDirectoryAllInfos(string dir, FsoMethod method) 
\{ 
DataTable directoryAllInfo; 
try 
\{ 
DirectoryInfo d = new DirectoryInfo(dir); 
directoryAllInfo = GetDirectoryAllInfo(d, method); 
\} 
catch (Exception exception) 
\{ 
throw new FileNotFoundException(exception.ToString()); 
\} 
return directoryAllInfo; 
\} 
 
public static DataTable GetDirectoryInfos(string dir, FsoMethod method) 
\{ 
DataRow row; 
DataTable table = new DataTable(); 
table.Columns.Add("name", typeof(string)); 
table.Columns.Add("type"); 
table.Columns.Add("size", typeof(int)); 
table.Columns.Add("content\_type"); 
table.Columns.Add("createTime", typeof(DateTime)); 
table.Columns.Add("lastWriteTime", typeof(DateTime)); 
if (method != FsoMethod.File) 
\{ 
for (int i = 0; i < getDirs(dir).Length; i++) 
\{ 
row = table.NewRow(); 
DirectoryInfo d = new DirectoryInfo(getDirs(dir)\[i\]); 
long\[\] numArray = DirInfo(d); 
row\[0\] = d.Name; 
row\[1\] = 1; 
row\[2\] = numArray\[0\]; 
row\[3\] = ""; 
row\[4\] = d.CreationTime; 
row\[5\] = d.LastWriteTime; 
table.Rows.Add(row); 
\} 
\} 
if (method != FsoMethod.Folder) 
\{ 
for (int j = 0; j < getFiles(dir).Length; j++) 
\{ 
row = table.NewRow(); 
FileInfo info2 = new FileInfo(getFiles(dir)\[j\]); 
row\[0\] = info2.Name; 
row\[1\] = 2; 
row\[2\] = info2.Length; 
row\[3\] = info2.Extension.Replace(".", ""); 
row\[4\] = info2.CreationTime; 
row\[5\] = info2.LastWriteTime; 
table.Rows.Add(row); 
\} 
\} 
return table; 
\} 
 
public static long\[\] GetDirInfos(string dir) 
\{ 
long\[\] numArray = new long\[3\]; 
DirectoryInfo d = new DirectoryInfo(dir); 
return DirInfo(d); 
\} 
 
private static string\[\] getDirs(string dir) 
\{ 
return Directory.GetDirectories(dir); 
\} 
 
private static string\[\] getFiles(string dir) 
\{ 
return Directory.GetFiles(dir); 
\} 
 
public static string GetFileSize(string filePath) 
\{ 
FileInfo info = new FileInfo(filePath); 
float num = info.Length / 0x400L; 
return (num.ToString() + "KB"); 
\} 
 
 
/// <summary> 
/// 返回文件是否存在 
/// </summary> 
/// <param name="filename">文件名</param> 
/// <returns>是否存在</returns> 
public static bool FileExists(string filename) 
\{ 
return File.Exists(filename); 
\} 
/// <summary> 
/// 返回目录是否存在 
/// </summary> 
/// <param name="filename">文件目录</param> 
/// <returns>是否存在</returns> 
public static bool DirIsExist(string file) 
\{ 
return Directory.Exists(file); 
\} 
 
 
public static bool IsExistCategoryDirAndCreate(string categorDir, HttpContext context) 
\{ 
if (context != null) 
\{ 
string file = Path.Combine(context.Request.PhysicalApplicationPath, categorDir); 
if (DirIsExist(file)) 
\{ 
return true; 
\} 
Create(file, FsoMethod.Folder); 
\} 
return false; 
\} 
 
public static void Move(string oldFile, string newFile, FsoMethod method) 
\{ 
if (method == FsoMethod.File) 
\{ 
File.Move(oldFile, newFile); 
\} 
if (method == FsoMethod.Folder) 
\{ 
Directory.Move(oldFile, newFile); 
\} 
\} 
 
public static string ReadFile(string file) 
\{ 
string str = ""; 
using (FileStream stream = new FileStream(file, FileMode.Open, FileAccess.Read)) 
\{ 
StreamReader reader = new StreamReader(stream, Encoding.Default); 
try 
\{ 
return reader.ReadToEnd(); 
\} 
catch 
\{ 
return str; 
\} 
finally 
\{ 
if (reader != null) 
\{ 
reader.Dispose(); 
\} 
\} 
\} 
\} 
 
public static void ReplaceFileContent(string dir, string originalContent, string newContent) 
\{ 
DirectoryInfo info = new DirectoryInfo(dir); 
foreach (FileInfo info2 in info.GetFiles("\*.\*", SearchOption.AllDirectories)) 
\{ 
StreamReader reader = info2.OpenText(); 
string str = reader.ReadToEnd(); 
reader.Dispose(); 
if (str.Contains(originalContent)) 
\{ 
WriteFile(info2.FullName, str.Replace(originalContent, newContent)); 
\} 
\} 
\} 
 
public static DataTable SearchFileContent(string dir, string searchPattern) 
\{ 
DataTable table = new DataTable(); 
DirectoryInfo info = new DirectoryInfo(dir); 
table.Columns.Add("name"); 
table.Columns.Add("type"); 
table.Columns.Add("size", typeof(int)); 
table.Columns.Add("content\_type"); 
table.Columns.Add("createTime", typeof(DateTime)); 
table.Columns.Add("lastWriteTime", typeof(DateTime)); 
foreach (FileInfo info2 in info.GetFiles("\*.\*", SearchOption.AllDirectories)) 
\{ 
DataRow row = table.NewRow(); 
StreamReader reader = info2.OpenText(); 
string str = reader.ReadToEnd(); 
reader.Dispose(); 
if (str.Contains(searchPattern)) 
\{ 
row\[0\] = info2.FullName.Remove(0, info.FullName.Length); 
row\[1\] = 2; 
row\[2\] = info2.Length; 
row\[3\] = info2.Extension.Replace(".", ""); 
row\[4\] = info2.CreationTime; 
row\[5\] = info2.LastWriteTime; 
table.Rows.Add(row); 
\} 
\} 
return table; 
\} 
 
public static DataTable SearchFiles(string dir, string searchPattern) 
\{ 
DataTable table = new DataTable(); 
DirectoryInfo info = new DirectoryInfo(dir); 
table.Columns.Add("name"); 
table.Columns.Add("type"); 
table.Columns.Add("size", typeof(int)); 
table.Columns.Add("content\_type"); 
table.Columns.Add("createTime", typeof(DateTime)); 
table.Columns.Add("lastWriteTime", typeof(DateTime)); 
foreach (FileInfo info2 in info.GetFiles(searchPattern, SearchOption.AllDirectories)) 
\{ 
DataRow row = table.NewRow(); 
row\[0\] = info2.FullName.Remove(0, info.FullName.Length); 
row\[1\] = 2; 
row\[2\] = info2.Length; 
row\[3\] = info2.Extension.Replace(".", ""); 
row\[4\] = info2.CreationTime; 
row\[5\] = info2.LastWriteTime; 
table.Rows.Add(row); 
\} 
return table; 
\} 
 
public static DataTable SearchTemplateFiles(string dir, string searchPattern) 
\{ 
DataTable table = new DataTable(); 
DirectoryInfo info = new DirectoryInfo(dir); 
string str = searchPattern; 
string str2 = searchPattern.ToLower(); 
int length = searchPattern.Length; 
if (length < 4) 
\{ 
str = "\*" + str + "\*.html"; 
\} 
else if ((str2.Substring(length - 4, 4) != ".html") || (str2.Substring(length - 3, 3) != ".htm")) 
\{ 
str = "\*" + str + "\*.html"; 
\} 
table.Columns.Add("name"); 
table.Columns.Add("type"); 
table.Columns.Add("size", typeof(int)); 
table.Columns.Add("content\_type"); 
table.Columns.Add("createTime", typeof(DateTime)); 
table.Columns.Add("lastWriteTime", typeof(DateTime)); 
try 
\{ 
foreach (FileInfo info2 in info.GetFiles(str, SearchOption.AllDirectories)) 
\{ 
DataRow row = table.NewRow(); 
row\[0\] = info2.FullName.Remove(0, info.FullName.Length).Replace("/", "\\""); 
row\[1\] = 2; 
row\[2\] = info2.Length; 
row\[3\] = info2.Extension.Replace(".", ""); 
row\[4\] = info2.CreationTime; 
row\[5\] = info2.LastWriteTime; 
table.Rows.Add(row); 
\} 
\} 
catch (ArgumentException) 
\{ 
\} 
return table; 
\} 
 
public static string WriteAppend(string file, string fileContent) 
\{ 
string str; 
FileInfo info = new FileInfo(file); 
if (!Directory.Exists(info.DirectoryName)) 
\{ 
Directory.CreateDirectory(info.DirectoryName); 
\} 
FileStream stream = new FileStream(file, FileMode.Append, FileAccess.Write); 
StreamWriter writer = new StreamWriter(stream, Encoding.GetEncoding("utf-8")); 
try 
\{ 
writer.Write(fileContent); 
str = fileContent; 
\} 
catch (Exception exception) 
\{ 
throw new FileNotFoundException(exception.ToString()); 
\} 
finally 
\{ 
writer.Flush(); 
stream.Flush(); 
writer.Close(); 
stream.Close(); 
\} 
return str; 
\} 
 
public static string WriteFile(string file, string fileContent) 
\{ 
string str; 
FileInfo info = new FileInfo(file); 
if (!Directory.Exists(info.DirectoryName)) 
\{ 
Directory.CreateDirectory(info.DirectoryName); 
\} 
FileStream stream = new FileStream(file, FileMode.Create, FileAccess.Write); 
StreamWriter writer = new StreamWriter(stream, Encoding.UTF8); 
try 
\{ 
writer.Write(fileContent); 
str = fileContent; 
\} 
catch (Exception exception) 
\{ 
throw new FileNotFoundException(exception.ToString()); 
\} 
finally 
\{ 
writer.Flush(); 
stream.Flush(); 
writer.Close(); 
stream.Close(); 
\} 
return str; 
\} 
 
public static void WriteFile(string file, string fileContent, bool append) 
\{ 
FileInfo info = new FileInfo(file); 
if (!Directory.Exists(info.DirectoryName)) 
\{ 
Directory.CreateDirectory(info.DirectoryName); 
\} 
StreamWriter writer = new StreamWriter(file, append, Encoding.GetEncoding("utf-8")); 
try 
\{ 
writer.Write(fileContent); 
\} 
catch (Exception exception) 
\{ 
throw new FileNotFoundException(exception.ToString()); 
\} 
finally 
\{ 
writer.Flush(); 
writer.Close(); 
\} 
\} 
\} 
 
public enum FsoMethod 
\{ 
Folder, 
File, 
All 
\}

转载于:https://www.cnblogs.com/kevinGao/archive/2012/01/15/2323340.html