Asp.net对文件夹和文件的操作类


using System;
using System.IO;
using System.Web;
  
namespace SEC
{
  /**//// <summary>
  /// 对文件和文件夹的操作类
  /// </summary>
  public class FileControl
  {
    public FileControl()
    {
    }
    /**//// <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
  
("../../../Images/"+FolderPathName).ToString();
          if(!Directory.Exists(CreatePath))
          {
            Directory.CreateDirectory(CreatePath);
          }   
        }
        catch
        {
          throw;
        }
      }
    }
  
    /**//// <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;
        }
      }
    }
  
    /**//// <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
      {
      }
    }
    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
  

        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
      {
      }
    }
    /**//// <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
      {
      }
    }
    /**//// <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;
      }
    }
  
    /**//// <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;
      }
    }
    /**//// <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;
      }
    }
  }
} 本文作者:
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