C#文件及文件夹操作方法
#region 判断是否存在指定文件
/// <summary>
/// 判断是否存在指定文件
/// </summary>
/// <param name="Path"></param>
/// <param name="FileName"></param>
public void IsCreateFile(string Path)
{
if(Directory.Exists(Path))
{}
else
{
FileInfo CreateFile = new FileInfo(Path); //创建文件
if (!CreateFile.Exists)
{
FileStream FS = CreateFile.Create();
FS.Close();
}
}
}
#endregion
#region 在根目录下创建文件夹
/**//// <summary>
/// 在根目录下创建文件夹
/// </summary>
/// <param name="FolderPath">要创建的文件路径</param>
public void CreateFolder(string FolderPathName)
{
if (FolderPathName.Trim().Length > 0)
{
try
{
string CreatePath = System.Web.HttpContext.Current.Server.MapPath("http://www.cnblogs.com/../Images/" + FolderPathName).ToString();
if (!Directory.Exists(CreatePath))
{
Directory.CreateDirectory(CreatePath);
}
}
catch
{
throw;
}
}
}
#endregion
#region 删除一个文件夹下面的字文件夹和文件
/**//// <summary>
/// 删除一个文件夹下面的字文件夹和文件
/// </summary>
/// <param name="FolderPathName"></param>
public void DeleteChildFolder(string FolderPathName)
{
if (FolderPathName.Trim().Length > 0)
{
try
{
string CreatePath = System.Web.HttpContext.Current.Server.MapPath(FolderPathName).ToString();
if (Directory.Exists(CreatePath))
{
Directory.Delete(CreatePath, true);
}
}
catch
{
throw;
}
}
}
#endregion
#region 删除一个文件
/**//// <summary>
/// 删除一个文件
/// </summary>
/// <param name="FilePathName"></param>
public void DeleteFile(string FilePathName)
{
try
{
FileInfo DeleFile = new FileInfo(System.Web.HttpContext.Current.Server.MapPath(FilePathName).ToString());
DeleFile.Delete();
}
catch
{
}
}
#endregion
#region 在相應的文件夾下創建文件(若路徑不存在,可創建)
/// <summary>
/// 創建文件
/// </summary>
/// <param name="FilePathName"></param>
public void CreateFile(string FilePathName)
{
try
{
//创建文件夹
string[] strPath = FilePathName.Split('/');
CreateFolder(FilePathName.Replace("/" + strPath[strPath.Length - 1].ToString(), "")); //创建文件夹
FileInfo CreateFile = new FileInfo(System.Web.HttpContext.Current.Server.MapPath(FilePathName).ToString()); //创建文件
if (!CreateFile.Exists)
{
FileStream FS = CreateFile.Create();
FS.Close();
}
}
catch
{
}
}
#endregion
#region 删除整个文件夹及其字文件夹和文件
/**//// <summary>
/// 删除整个文件夹及其字文件夹和文件
/// </summary>
/// <param name="FolderPathName"></param>
public void DeleParentFolder(string FolderPathName)
{
try
{
DirectoryInfo DelFolder = new DirectoryInfo(System.Web.HttpContext.Current.Server.MapPath(FolderPathName).ToString());
if (DelFolder.Exists)
{
DelFolder.Delete();
}
}
catch
{
}
}
# endregion
#region 在文件里追加内容
/**//// <summary>
/// 在文件里追加内容
/// </summary>
/// <param name="FilePathName"></param>
public void ReWriteReadinnerText(string FilePathName, string WriteWord)
{
try
{
//建立文件夹和文件
//CreateFolder(FilePathName);
CreateFile(FilePathName);
//得到原来文件的内容
FileStream FileRead = new FileStream(System.Web.HttpContext.Current.Server.MapPath(FilePathName).ToString(), FileMode.Open, FileAccess.ReadWrite);
StreamReader FileReadWord = new StreamReader(FileRead, System.Text.Encoding.Default);
string OldString = FileReadWord.ReadToEnd().ToString();
OldString = OldString + WriteWord;
//把新的内容重新写入
StreamWriter FileWrite = new StreamWriter(FileRead, System.Text.Encoding.Default);
FileWrite.Write(WriteWord);
//关闭
FileWrite.Close();
FileReadWord.Close();
FileRead.Close();
}
catch
{
// throw;
}
}
#endregion
#region 在文件里追加内容
/**//// <summary>
/// 在文件里追加内容
/// </summary>
/// <param name="FilePathName"></param>
public string ReaderFileData(string FilePathName)
{
try
{
FileStream FileRead = new FileStream(System.Web.HttpContext.Current.Server.MapPath(FilePathName).ToString(), FileMode.Open, FileAccess.Read);
StreamReader FileReadWord = new StreamReader(FileRead, System.Text.Encoding.Default);
string TxtString = FileReadWord.ReadToEnd().ToString();
//关闭
FileReadWord.Close();
FileRead.Close();
return TxtString;
}
catch
{
throw;
}
}
# endregion
#region 读取文件夹的文件
/**//// <summary>
/// 读取文件夹的文件
/// </summary>
/// <param name="FilePathName"></param>
/// <returns></returns>
public DirectoryInfo checkValidSessionPath(string FilePathName)
{
try
{
DirectoryInfo MainDir = new DirectoryInfo(System.Web.HttpContext.Current.Server.MapPath(FilePathName));
return MainDir;
}
catch
{
throw;
}
}
#endregion
#region 创建文件夹
/// <summary>
/// 创建文件夹
/// </summary>
/// <param name="Path"></param>
public static void FolderCreate(string Path)
{
// 判断目标目录是否存在如果不存在则新建之
if (!Directory.Exists(Path))
Directory.CreateDirectory(Path);
}
#endregion
#region 创建目录
public static void FileCreate(string Path)
{
FileInfo CreateFile = new FileInfo(Path); //创建文件
if (!CreateFile.Exists)
{
FileStream FS = CreateFile.Create();
FS.Close();
}
}
#endregion
#region 递归删除文件夹目录及文件
/****************************************
* 函数名称：DeleteFolder
* 功能说明：递归删除文件夹目录及文件
* 参 数：dir:文件夹路径
* 调用示列：
* string dir = Server.MapPath("test/");
* EC.FileObj.DeleteFolder(dir);
*****************************************/
/// <summary>
/// 递归删除文件夹目录及文件
/// </summary>
/// <param name="dir"></param>
/// <returns></returns>
public static void DeleteFolder(string dir)
{
if (Directory.Exists(dir)) //如果存在这个文件夹删除之
{
foreach (string d in Directory.GetFileSystemEntries(dir))
{
if (File.Exists(d))
File.Delete(d); //直接删除其中的文件
else
DeleteFolder(d); //递归删除子文件夹
}
Directory.Delete(dir, true); //删除已空文件夹
}
}
#endregion
#region 将指定文件夹下面的所有内容copy到目标文件夹下面 果目标文件夹为只读属性就会报错。
/****************************************
* 函数名称：CopyDir
* 功能说明：将指定文件夹下面的所有内容copy到目标文件夹下面 果目标文件夹为只读属性就会报错。
* 参 数：srcPath:原始路径,aimPath:目标文件夹
* 调用示列：
* string srcPath = Server.MapPath("test/");
* string aimPath = Server.MapPath("test1/");
* EC.FileObj.CopyDir(srcPath,aimPath);
*****************************************/
/// <summary>
/// 指定文件夹下面的所有内容copy到目标文件夹下面
/// </summary>
/// <param name="srcPath">原始路径</param>
/// <param name="aimPath">目标文件夹</param>
public static void CopyDir(string srcPath, string aimPath)
{
try
{
// 检查目标目录是否以目录分割字符结束如果不是则添加之
if (aimPath[aimPath.Length - 1] != Path.DirectorySeparatorChar)
aimPath += Path.DirectorySeparatorChar;
// 判断目标目录是否存在如果不存在则新建之
if (!Directory.Exists(aimPath))
Directory.CreateDirectory(aimPath);
// 得到源目录的文件列表，该里面是包含文件以及目录路径的一个数组
//如果你指向copy目标文件下面的文件而不包含目录请使用下面的方法
//string[] fileList = Directory.GetFiles(srcPath);
string[] fileList = Directory.GetFileSystemEntries(srcPath);
//遍历所有的文件和目录
foreach (string file in fileList)
{
//先当作目录处理如果存在这个目录就递归Copy该目录下面的文件
if (Directory.Exists(file))
CopyDir(file, aimPath + Path.GetFileName(file));
//否则直接Copy文件
else
File.Copy(file, aimPath + Path.GetFileName(file), true);
}
}
catch (Exception ee)
{
throw new Exception(ee.ToString());
}
}
#endregion
#region 获取指定文件夹下所有子目录及文件(树形)
/****************************************
* 函数名称：GetFoldAll(string Path)
* 功能说明：获取指定文件夹下所有子目录及文件(树形)
* 参 数：Path:详细路径
* 调用示列：
* string strDirlist = Server.MapPath("templates");
* this.Literal1.Text = EC.FileObj.GetFoldAll(strDirlist);
*****************************************/
/// <summary>
/// 获取指定文件夹下所有子目录及文件
/// </summary>
/// <param name="Path">详细路径</param>
public static string GetFoldAll(string Path)
{
string str = "";
DirectoryInfo thisOne = new DirectoryInfo(Path);
str = ListTreeShow(thisOne, 0, str);
return str;
}
/// <summary>
/// 获取指定文件夹下所有子目录及文件函数
/// </summary>
/// <param name="theDir">指定目录</param>
/// <param name="nLevel">默认起始值,调用时,一般为0</param>
/// <param name="Rn">用于迭加的传入值,一般为空</param>
/// <returns></returns>
public static string ListTreeShow(DirectoryInfo theDir, int nLevel, string Rn)//递归目录 文件
{
DirectoryInfo[] subDirectories = theDir.GetDirectories();//获得目录
foreach (DirectoryInfo dirinfo in subDirectories)
{
if (nLevel == 0)
{
Rn += "├";
}
else
{
string _s = "";
for (int i = 1; i <= nLevel; i++)
{
_s += "│ ";
}
Rn += _s + "├";
}
Rn += "<b>" + dirinfo.Name.ToString() + "</b><br />";
FileInfo[] fileInfo = dirinfo.GetFiles(); //目录下的文件
foreach (FileInfo fInfo in fileInfo)
{
if (nLevel == 0)
{
Rn += "│ ├";
}
else
{
string _f = "";
for (int i = 1; i <= nLevel; i++)
{
_f += "│ ";
}
Rn += _f + "│ ├";
}
Rn += fInfo.Name.ToString() + " <br />";
}
Rn = ListTreeShow(dirinfo, nLevel + 1, Rn);
}
return Rn;
}
/****************************************
* 函数名称：GetFoldAll(string Path)
* 功能说明：获取指定文件夹下所有子目录及文件(下拉框形)
* 参 数：Path:详细路径
* 调用示列：
* string strDirlist = Server.MapPath("templates");
* this.Literal2.Text = EC.FileObj.GetFoldAll(strDirlist,"tpl","");
*****************************************/
/// <summary>
/// 获取指定文件夹下所有子目录及文件(下拉框形)
/// </summary>
/// <param name="Path">详细路径</param>
///<param name="DropName">下拉列表名称</param>
///<param name="tplPath">默认选择模板名称</param>
public static string GetFoldAll(string Path,string DropName,string tplPath)
{
string strDrop = "<select name=\"" + DropName + "\" id=\"" + DropName + "\"><option value=\"\">--请选择详细模板--</option>";
string str = "";
DirectoryInfo thisOne = new DirectoryInfo(Path);
str = ListTreeShow(thisOne, 0, str,tplPath);
return strDrop+str+"</select>";
}
/// <summary>
/// 获取指定文件夹下所有子目录及文件函数
/// </summary>
/// <param name="theDir">指定目录</param>
/// <param name="nLevel">默认起始值,调用时,一般为0</param>
/// <param name="Rn">用于迭加的传入值,一般为空</param>
/// <param name="tplPath">默认选择模板名称</param>
/// <returns></returns>
public static string ListTreeShow(DirectoryInfo theDir, int nLevel, string Rn,string tplPath)//递归目录 文件
{
DirectoryInfo[] subDirectories = theDir.GetDirectories();//获得目录
foreach (DirectoryInfo dirinfo in subDirectories)
{
Rn += "<option value=\"" + dirinfo.Name.ToString() + "\"";
if (tplPath.ToLower() == dirinfo.Name.ToString().ToLower())
{
Rn += " selected ";
}
Rn += ">";
if (nLevel == 0)
{
Rn += "┣";
}
else
{
string _s = "";
for (int i = 1; i <= nLevel; i++)
{
_s += "│ ";
}
Rn += _s + "┣";
}
Rn += "" + dirinfo.Name.ToString() + "</option>";
FileInfo[] fileInfo = dirinfo.GetFiles(); //目录下的文件
foreach (FileInfo fInfo in fileInfo)
{
Rn += "<option value=\"" + dirinfo.Name.ToString()+"/"+fInfo.Name.ToString() + "\"";
if (tplPath.ToLower() == fInfo.Name.ToString().ToLower())
{
Rn += " selected ";
}
Rn += ">";
if (nLevel == 0)
{
Rn += "│ ├";
}
else
{
string _f = "";
for (int i = 1; i <= nLevel; i++)
{
_f += "│ ";
}
Rn += _f + "│ ├";
}
Rn += fInfo.Name.ToString() + "</option>";
}
Rn = ListTreeShow(dirinfo, nLevel + 1, Rn, tplPath);
}
return Rn;
}
#endregion
#region 获取文件夹大小
/****************************************
* 函数名称：GetDirectoryLength(string dirPath)
* 功能说明：获取文件夹大小
* 参 数：dirPath:文件夹详细路径
* 调用示列：
* string Path = Server.MapPath("templates");
* Response.Write(EC.FileObj.GetDirectoryLength(Path));
*****************************************/
/// <summary>
/// 获取文件夹大小
/// </summary>
/// <param name="dirPath">文件夹路径</param>
/// <returns></returns>
public static long GetDirectoryLength(string dirPath)
{
if (!Directory.Exists(dirPath))
return 0;
long len = 0;
DirectoryInfo di = new DirectoryInfo(dirPath);
foreach (FileInfo fi in di.GetFiles())
{
len += fi.Length;
}
DirectoryInfo[] dis = di.GetDirectories();
if (dis.Length > 0)
{
for (int i = 0; i < dis.Length; i++)
{
len += GetDirectoryLength(dis[i].FullName);
}
}
return len;
}
#endregion
#region 获取指定文件详细属性
/****************************************
* 函数名称：GetFileAttibe(string filePath)
* 功能说明：获取指定文件详细属性
* 参 数：filePath:文件详细路径
* 调用示列：
* string file = Server.MapPath("robots.txt");
* Response.Write(EC.FileObj.GetFileAttibe(file));
*****************************************/
/// <summary>
/// 获取指定文件详细属性
/// </summary>
/// <param name="filePath">文件详细路径</param>
/// <returns></returns>
public static string GetFileAttibe(string filePath)
{
string str = "";
System.IO.FileInfo objFI = new System.IO.FileInfo(filePath);
str += "详细路径:" + objFI.FullName + "<br>文件名称:" + objFI.Name + "<br>文件长度:" + objFI.Length.ToString() + "字节<br>创建时间" + objFI.CreationTime.ToString() + "<br>最后访问时间:" + objFI.LastAccessTime.ToString() + "<br>修改时间:" + objFI.LastWriteTime.ToString() + "<br>所在目录:" + objFI.DirectoryName + "<br>扩展名:" + objFI.Extension;
return str;
}
#endregion
#region 遍历文件夹中的文件和子文件夹并显示其属性
public void ReadFolrder()
{
if(Directory.Exists(Server.MapPath("a")))
{
//所有子文件夹
foreach(string item in Directory.GetDirectories(Server.MapPath("a")))
{
Response.Write("<b>文件夹：" + item + "</b><br/>");
DirectoryInfo directoryinfo = new DirectoryInfo(item);
Response.Write("名称：" + directoryinfo.Name + "<br/>");
Response.Write("路径：" + directoryinfo.FullName + "<br/>");
Response.Write("创建时间：" + directoryinfo.CreationTime + "<br/>");
Response.Write("上次访问时间：" + directoryinfo.LastAccessTime + "<br/>");
Response.Write("上次修改时间：" + directoryinfo.LastWriteTime + "<br/>");
Response.Write("父文件夹：" + directoryinfo.Parent + "<br/>");
Response.Write("所在根目录：" + directoryinfo.Root + "<br/>");
Response.Write("<br/>");
}
//所有子文件
foreach (string item in Directory.GetFiles(Server.MapPath("a")))
{
Response.Write("<b>文件：" + item + "</b><br/>");
FileInfo fileinfo = new FileInfo(item);
Response.Write("名称：" + fileinfo.Name + "<br/>");
Response.Write("扩展名：" + fileinfo.Extension +"<br/>");
Response.Write("路径：" + fileinfo.FullName +"<br/>");
Response.Write("大小：" + fileinfo.Length +"<br/>");
Response.Write("创建时间：" + fileinfo.CreationTime +"<br/>");
Response.Write("上次访问时间：" + fileinfo.LastAccessTime +"<br/>");
Response.Write("上次修改时间：" + fileinfo.LastWriteTime +"<br/>");
Response.Write("所在文件夹：" + fileinfo.DirectoryName +"<br/>");
Response.Write("文件属性：" + fileinfo.Attributes +"<br/>");
Response.Write("<br/>");
}
}
}
