手机小米文件管理器的ftp怎样用

发布网友发布时间：2022-04-21 06:33

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懂视网时间：2022-04-20 14:47

这次给大家带来FTP的文件管理，对FTP文件进行管理的注意事项有哪些，下面就是实战案例，一起来看一下。

因为网站有下载文件需要和网站分离，使用到了FTP管理文件，这里做一个简单的整理。

1.安装FTP

和安装iis一样。全部勾选。

设置站点名称和路径。

设置ip。

身份授权选择所有用户，可以读写。

完成之后 IIS就会出现：

2.添加FTP用户

计算机-->管理-->本地用户和组。添加用户，描述为FTP。

这里要设置用户的密码方式，去掉“用户下次登录时必须更改密码”的选项。

不然会登录不成功。报530错误。

3.测试登录

ftp ip 就可以访问。显示230 user logged in 表示登录成功。

4.上传下载

FtpHelper:

 public static class FtpHelper
 { //基本设置
 private const string Path = @"ftp://192.168.253.4:21/"; //目标路径
 private const string Ftpip = "192.168.253.4"; // GetAppConfig("obj"); //ftp IP地址
 private const string Username = "stone"; //GetAppConfig("username"); //ftp用户名
 private const string Password = "111111"; //GetAppConfig("password"); //ftp密码 // 2M 可能不够
 private const int bufferSize = 2048; /// <summary>
 /// 获取自定义配置的值 /// </summary>
 /// <param name="strKey">键值</param>
 /// <returns>键值对应的值</returns>
 public static string GetAppConfig(string strKey)
 {  foreach (string key in ConfigurationManager.AppSettings)
  {  if (key == strKey)
  {   return ConfigurationManager.AppSettings[strKey];
  }
  }  return null;
 } //获取ftp上面的文件和文件夹
 public static string[] GetFileList(string dir)
 {  var result = new StringBuilder();  try
  {  var ftpRequest = FtpRequest(Path, WebRequestMethods.Ftp.ListDirectory);
  WebResponse response = ftpRequest.GetResponse();  var reader = new StreamReader(response.GetResponseStream());  string line = reader.ReadLine();  while (line != null)
  {
   result.Append(line);
   result.Append("
");
   Console.WriteLine(line);
   line = reader.ReadLine();
  }  // to remove the trailing '
'
  result.Remove(result.ToString().LastIndexOf('
'), 1);
  reader.Close();
  response.Close();  return result.ToString().Split('
');
  }  catch (Exception ex)
  {
  Console.WriteLine("获取ftp上面的文件和文件夹：" + ex.Message);  return new[] {""};
  }
 } /// <summary>
 /// 获取文件大小 /// </summary>
 /// <param name="file">ip服务器下的相对路径</param>
 /// <returns>文件大小</returns>
 public static int GetFileSize(string file)
 {  var result = new StringBuilder();
  FtpWebRequest request;  try
  {
  request = (FtpWebRequest) WebRequest.Create(new Uri(Path + file));
  request.UseBinary = true;
  request.Credentials = new NetworkCredential(Username, Password); //设置用户名和密码
  request.Method = WebRequestMethods.Ftp.GetFileSize;  var dataLength = (int) request.GetResponse().ContentLength;  return dataLength;
  }  catch (Exception ex)
  {
  Console.WriteLine("获取文件大小出错：" + ex.Message);  return -1;
  }
 } /// <summary>
 /// 文件上传 /// </summary>
 /// <param name="localFile">原路径（绝对路径）包括文件名</param>
 /// <param name="remoteFile">目标文件夹：服务器下的相对路径 不填为根目录</param>
 public static bool UpLoad(string localFile, string remoteFile = "")
 {  try
  {  string url = Path;  if (remoteFile != "")
   url += remoteFile + "/";  try
  {   //待上传的文件 （全路径）
   try
   {   var fileInfo = new FileInfo(localFile);   using (FileStream fs = fileInfo.OpenRead())
   {    long length = fs.Length;
    FtpWebRequest reqFtp = FtpRequest(url + fileInfo.Name,WebRequestMethods.Ftp.UploadFile);    using (Stream stream = reqFtp.GetRequestStream())
    {    //设置缓冲大小
    int BufferLength = 5120;    var b = new byte[BufferLength];    int i;    while ((i = fs.Read(b, 0, BufferLength)) > 0)
    {
     stream.Write(b, 0, i);
    }
    Console.WriteLine("上传文件成功");    return true;
    }
   }
   }   catch (Exception ex)
   {
   Console.WriteLine("上传文件失败错误为" + ex.Message);
   }   finally
   {
   }
  }  catch (Exception ex)
  {
   Console.WriteLine("上传文件失败错误为" + ex.Message);
  }  finally
  {
  }
  }  catch (Exception ex)
  {
  Console.WriteLine("上传文件失败错误为" + ex.Message);
  }  return false;
 } public static bool UpLoad(Stream localFileStream, string remoteFile)
 {  bool result = true;  try
  {  var ftpRequest = FtpRequest(Path + remoteFile, WebRequestMethods.Ftp.UploadFile);  var ftpStream = ftpRequest.GetRequestStream();  var byteBuffer = new byte[bufferSize];  int bytesSent = localFileStream.Read(byteBuffer, 0, bufferSize);  try
  {   while (bytesSent != 0)
   {
   ftpStream.Write(byteBuffer, 0, bytesSent);
   bytesSent = localFileStream.Read(byteBuffer, 0, bufferSize);
   }
  }  catch (Exception ex)
  {
   Console.WriteLine(ex.ToString());
   result = false;
  }
  localFileStream.Close();
  ftpStream.Close();
  }  catch (Exception ex)
  {
  Console.WriteLine(ex.ToString());
  result = false;
  }  return result;
 } public static FtpWebRequest FtpRequest(string requstUrl,string method,bool closedResponse=false)
 {  var reqFtp = (FtpWebRequest) WebRequest.Create(new Uri(requstUrl));  //设置连接到FTP的帐号密码
  reqFtp.Credentials = new NetworkCredential(Username, Password);  //设置请求完成后是否保持连接
  reqFtp.KeepAlive = false;  //指定执行命令
  reqFtp.Method = method;  //指定数据传输类型
  reqFtp.UseBinary = true;  if (closedResponse)
  {  var resp=reqFtp.GetResponse();
  resp.Close();
  }  return reqFtp;
 } /// <summary>
 /// 下载 /// </summary>
 /// <param name="localFile">目的位置</param>
 /// <param name="remoteFile">服务器相对位置</param>
 /// <returns></returns>
 public static bool Download(string localFile,string remoteFile)
 {  bool check = true;  try
  {  var outputStream = new FileStream(localFile, FileMode.Create);  var ftpRequest = FtpRequest(Path + remoteFile, WebRequestMethods.Ftp.DownloadFile);  var response = (FtpWebResponse)ftpRequest.GetResponse();
  Stream ftpStream = response.GetResponseStream();  long cl = response.ContentLength;  int bufferSize = 2048;  int readCount;  var buffer = new byte[bufferSize];
  readCount = ftpStream.Read(buffer, 0, bufferSize);  while (readCount > 0)
  {
   outputStream.Write(buffer, 0, readCount); 
   readCount = ftpStream.Read(buffer, 0, bufferSize);
  }
  ftpStream.Close();
  outputStream.Close();
  response.Close();
  }  catch (Exception err)
  {
  check = false;
  }  return check;
 } public static Stream Download(string remoteFile)
 {  var ftpRequest = FtpRequest(Path + remoteFile, WebRequestMethods.Ftp.DownloadFile);  var response = (FtpWebResponse)ftpRequest.GetResponse();
  Stream ftpStream = response.GetResponseStream();  return ftpStream;
 } /// <summary>
 /// 删除文件 /// </summary>
 /// <param name="fileName">服务器下的相对路径 包括文件名</param>
 public static void DeleteFileName(string fileName)
 {  try
  {
  FtpRequest(Path + fileName, WebRequestMethods.Ftp.DeleteFile,true);
  }  catch (Exception ex)
  {
  Console.WriteLine("删除文件出错：" + ex.Message);
  }
 } /// <summary>
 /// 新建目录 上一级必须先存在 /// </summary>
 /// <param name="dirName">服务器下的相对路径</param>
 public static void MakeDir(string dirName)
 {  try
  {
  FtpRequest(Path + dirName, WebRequestMethods.Ftp.MakeDirectory, true);
  }  catch (Exception ex)
  {
  Console.WriteLine("创建目录出错：" + ex.Message);
  }
 } /// <summary>
 /// 删除目录 上一级必须先存在 /// </summary>
 /// <param name="dirName">服务器下的相对路径</param>
 public static void DelDir(string dirName)
 {  try
  {
  FtpRequest(Path + dirName, WebRequestMethods.Ftp.RemoveDirectory,true);
  }  catch (Exception ex)
  {
  Console.WriteLine("删除目录出错：" + ex.Message);
  }
 } /// <summary>
 /// 从ftp服务器上获得文件夹列表 /// </summary>
 /// <param name="requedstPath">服务器下的相对路径</param>
 /// <returns></returns>
 public static List<string> GetDirctory(string requedstPath)
 {  var strs = new List<string>();  try
  {  var reqFtp = FtpRequest(Path + requedstPath, WebRequestMethods.Ftp.ListDirectoryDetails);
  WebResponse response = reqFtp.GetResponse();  var reader = new StreamReader(response.GetResponseStream()); //中文文件名
  string line = reader.ReadLine();  while (line != null)
  {   if (line.Contains("<DIR>"))
   {   string msg = line.Substring(line.LastIndexOf("<DIR>") + 5).Trim();
   strs.Add(msg);
   }
   line = reader.ReadLine();
  }
  reader.Close();
  response.Close();  return strs;
  }  catch (Exception ex)
  {
  Console.WriteLine("获取目录出错：" + ex.Message);
  }  return strs;
 } /// <summary>
 /// 从ftp服务器上获得文件列表 /// </summary>
 /// <param name="requedstPath">服务器下的相对路径</param>
 /// <returns></returns>
 public static List<string> GetFile(string requedstPath)
 {  var strs = new List<string>();  try
  {  var reqFtp = FtpRequest(Path + requedstPath, WebRequestMethods.Ftp.ListDirectoryDetails);
  WebResponse response = reqFtp.GetResponse();  var reader = new StreamReader(response.GetResponseStream()); //中文文件名
  string line = reader.ReadLine();  while (line != null)
  {   if (!line.Contains("<DIR>"))
   {   string msg = line.Substring(39).Trim();
   strs.Add(msg);
   }
   line = reader.ReadLine();
  }
  reader.Close();
  response.Close();  return strs;
  }  catch (Exception ex)
  {
  Console.WriteLine("获取文件出错：" + ex.Message);
  }  return strs;
 }
 }

View Code

主要是通过创建FtpRequest来处理Ftp相关请求。

 public static FtpWebRequest FtpRequest(string requstUrl,string method,bool closedResponse=false)
 {  var reqFtp = (FtpWebRequest) WebRequest.Create(new Uri(requstUrl));  //设置连接到FTP的帐号密码
  reqFtp.Credentials = new NetworkCredential(Username, Password);  //设置请求完成后是否保持连接
  reqFtp.KeepAlive = false;  //指定执行命令
  reqFtp.Method = method;  //指定数据传输类型
  reqFtp.UseBinary = true;  if (closedResponse)
  {  var resp=reqFtp.GetResponse();
  resp.Close();
  }  return reqFtp;
 }

因为在MVC网站中使用的文件流的方式。

下载：

 public static Stream Download(string remoteFile)
 {  var ftpRequest = FtpRequest(Path + remoteFile, WebRequestMethods.Ftp.DownloadFile);  var response = (FtpWebResponse)ftpRequest.GetResponse();
  Stream ftpStream = response.GetResponseStream();  return ftpStream;
 }

调用：

 public ActionResult DownloadFileFromFtp()
 {  var filepath = "DIAView//simple.png";  var stream = FtpHelper.Download(filepath);  return File(stream, FileHelper.GetContentType(".png"),"test.png");
 }

上传：

 public static bool UpLoad(Stream localFileStream, string remoteFile)
 {  bool result = true;  try
  {  var ftpRequest = FtpRequest(Path + remoteFile, WebRequestMethods.Ftp.UploadFile);  var ftpStream = ftpRequest.GetRequestStream();  var byteBuffer = new byte[bufferSize];  int bytesSent = localFileStream.Read(byteBuffer, 0, bufferSize);  try
  {   while (bytesSent != 0)
   {
   ftpStream.Write(byteBuffer, 0, bytesSent);
   bytesSent = localFileStream.Read(byteBuffer, 0, bufferSize);
   }
  }  catch (Exception ex)
  {
   Console.WriteLine(ex.ToString());
   result = false;
  }
  localFileStream.Close();
  ftpStream.Close();
  }  catch (Exception ex)
  {
  Console.WriteLine(ex.ToString());
  result = false;
  }  return result;
 }

调用：

 [HttpPost] public JsonResult UploadFile(HttpPostedFileBase fileData)
 {  if (fileData != null)
  {  string fileName = Path.GetFileName(fileData.FileName);// 原始文件名称
  string saveName = Encrypt.GenerateOrderNumber() +"_"+fileName; 
  FtpHelper.UpLoad(fileData.InputStream, "DIAView" + "/" + saveName);  return Json(new { Success = true, FileName = fileName, SaveName = saveName}, JsonRequestBehavior.AllowGet);
  }  return Json(new { Success = false, Message = "请选择要上传的文件！" }, JsonRequestBehavior.AllowGet);
 }

Ftp还可以设置不同用户有不同的目录，是以为记

相信看了本文案例你已经掌握了方法，更多精彩请关注Gxl网其它相关文章！