ftp 上传与下载代码,Css代码库,德仔网

代码语言

代码分类

【Css】 ftp 上传与下载

作者:思雨 / 发布于2015/3/11/ 861

//上传
ftpmg.Upload("", DateTime.Now.ToString("yyyyMMddhhmmss"));

//下载
ftpmg.Download(@"E:\", "tt.txt", out errorinfo);


	string ftpServerIP;
	 string ftpUserID;
	 string ftpPassword;
	 FtpWebRequest reqFTP;
	 private void Connect(String path)//连接ftp
	 {
	 // 根据uri创建FtpWebRequest对象
	 reqFTP = (FtpWebRequest)FtpWebRequest.Create(new Uri(path));
	 // 指定数据传输类型
	 reqFTP.UseBinary = true;
	 // ftp用户名和密码
	 reqFTP.Credentials = new NetworkCredential(ftpUserID, ftpPassword);
	 }
	 public FtpManager(string ftpServerIP, string ftpUserID, string ftpPassword)
	 {
	 this.ftpServerIP = ftpServerIP;
	 this.ftpUserID = ftpUserID;
	 this.ftpPassword = ftpPassword;

	 }
	

	

	 public void Upload(string path, string filename) //上面的代码实现了向ftp服务器上载文件的功能
	 {
	 FileInfo fileInf = new FileInfo(filename);
	 string uri = "";
	 if (path != "")
	 uri = "ftp://" + ftpServerIP + "/" + path + "/" + fileInf.Name;
	 else
	 uri = "ftp://" + ftpServerIP + "/" + fileInf.Name;

	
	 Connect(uri);//连接

	 // 默认为true，连接不会被关闭
	 // 在一个命令之后被执行
	 reqFTP.KeepAlive = false;

	 // 指定执行什么命令
	 reqFTP.Method = WebRequestMethods.Ftp.UploadFile;

	 // 上传文件时通知服务器文件的大小
	 reqFTP.ContentLength = fileInf.Length;

	 // 缓冲大小设置为kb
	 int buffLength = 2048;

	 byte[] buff = new byte[buffLength];
	 int contentLen;

	 // 打开一个文件流(System.IO.FileStream) 去读上传的文件
	 FileStream fs = fileInf.OpenRead();

	 Stream strm = null;
	 try
	 {
	 // 把上传的文件写入流
	 strm = reqFTP.GetRequestStream();
	 // 每次读文件流的kb
	 contentLen = fs.Read(buff, 0, buffLength);

	 // 流内容没有结束
	 while (contentLen != 0)
	 {
	 // 把内容从file stream 写入upload stream
	 strm.Write(buff, 0, contentLen);

	 contentLen = fs.Read(buff, 0, buffLength);
	 }

	 // 关闭两个流
	 strm.Close();
	 fs.Close();
	 }
	 catch (Exception ex)
	 {
	 Log.WriteLogD("上传出错:" + ex.Message);
	 Console.WriteLine(ex.Message);
	 throw ex;
	 }
	 finally
	 {

	 fs.Close();
	 }
	 }

	 public bool Download(string filePath, string fileName, out string errorinfo)/**/////上面的代码实现了从ftp服务器下载文件的功能
	 {

	
	 try
	 {
	 String onlyFileName = Path.GetFileName(fileName);
	 string newFileName = filePath + "\\" + onlyFileName;
	 if (File.Exists(newFileName))
	 {
	 errorinfo = string.Format("本地文件{0}已存在,无法下载", newFileName);
	 return false;

	 }
	 string url = "ftp://" + ftpServerIP + "/" + fileName;
	 Connect(url);//连接

	 reqFTP.Credentials = new NetworkCredential(ftpUserID, ftpPassword);

	 FtpWebResponse response = (FtpWebResponse)reqFTP.GetResponse();

	 Stream ftpStream = response.GetResponseStream();

	 long cl = response.ContentLength;

	 int bufferSize = 2048;

	 int readCount;

	 byte[] buffer = new byte[bufferSize];

	 readCount = ftpStream.Read(buffer, 0, bufferSize);
	 FileStream outputStream = new FileStream(newFileName, FileMode.Create);

	 while (readCount > 0)
	 {
	 outputStream.Write(buffer, 0, readCount);

	 readCount = ftpStream.Read(buffer, 0, bufferSize);
	 }

	 ftpStream.Close();

	 outputStream.Close();

	 response.Close();
	 errorinfo = "";
	 return true;
	 }
	 catch (Exception ex)
	 {
	 Log.WriteLogD("下载出错:" + ex.Message);
	 errorinfo = string.Format("因{0},无法下载", ex.Message);
	 return false;
	 }
	 }

试试其它关键字

　ftp　　上传　　下载　

同语言下

可能有用的

思雨贡献的其它代码(8)