Asp.net对文件夹和文件的操作类

来源：AspCool 作者：出处：巧巧读书 2006-05-11 进入讨论组

引用:http://www.qqread.com/aspdotnet/n355109002.html


using System; 


  using System.IO; 


  using System.Web; 


   


  namespace SEC 


  { 


   /**//// 




   /// 对文件和文件夹的操作类 


   /// 




   public class FileControl 


   { 


   public FileControl() 


   { 


   


   } 


   /**//// 




   /// 在根目录下创建文件夹 


   /// 




   /// 

要创建的文件路径




   public void CreateFolder(string FolderPathName) 


   { 


   if(FolderPathName.Trim().Length>
0) 


   { 


   try 


   { 


   string CreatePath = System.Web.HttpContext.Current.Server.MapPath 


   


  ("../../../Images/"+FolderPathName).ToString(); 


   if(!Directory.Exists(CreatePath)) 


   { 


   Directory.CreateDirectory(CreatePath); 


   } 


   } 


   catch 


   { 


   throw; 


   } 


   } 


   } 


   


   /**//// 




   /// 删除一个文件夹下面的字文件夹和文件 


   /// 




   /// 





   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; 


   } 


   } 


   } 


   


   /**//// 




   /// 删除一个文件 


   /// 




   /// 





   public void DeleteFile(string FilePathName) 


   { 


   try 


   { 


   FileInfo DeleFile = new FileInfo(System.Web.HttpContext.Current.Server.MapPath 


   


  (FilePathName).ToString()); 


   DeleFile.Delete(); 


   } 


   catch 


   { 


   } 


   } 


   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 


   { 


   } 


   } 


   /**//// 




   /// 删除整个文件夹及其字文件夹和文件 


   /// 




   /// 





   public void DeleParentFolder(string FolderPathName) 


   { 


   try 


   { 


   DirectoryInfo DelFolder = new DirectoryInfo(System.Web.HttpContext.Current.Server.MapPath 


   


  (FolderPathName).ToString()); 


   if(DelFolder.Exists) 


   { 


   DelFolder.Delete(); 


   } 


   } 


   catch 


   { 


   } 


   } 


   /**//// 




   /// 在文件里追加内容 


   /// 




   /// 





   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; 


   } 


   } 


   


   /**//// 




   /// 在文件里追加内容 


   /// 




   /// 





   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; 


   } 


   } 


   /**//// 




   /// 读取文件夹的文件 


   /// 




   /// 





   /// 





   public DirectoryInfo checkValidSessionPath(string FilePathName) 


   { 


   try 


   { 


   DirectoryInfo MainDir = new DirectoryInfo(System.Web.HttpContext.Current.Server.MapPath 


   


  (FilePathName)); 


   return MainDir; 


   


   } 


   catch 


   { 


   throw; 


   } 


   } 


   } 


  }