Asp.net对文件夹和文件的操作类

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

}
 
}
 
}
 
}
 

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