FTP是File Transfer Protocol(文件传输协议)的英文简称,而中文简称为“文本协议”。用于Internet上的控制文件的双向传输。同时,它也是一个应用程序(Application)。基于不同的操作系统有不同的FTP应用程序,而所有这些应用程序都遵守同一种协议以传输文件。在ftp的使用当中,用户经常遇到两个概念:“下载”(Download)和“上传”(upload)。“下载”文件就是从远程主机拷贝文件至自己的计算机上;“上传”文件就是将文件从自己的计算机中拷贝至远程主机上。用Internet语言来说,用户可通过客户机程序向(从)远程主机上传(下载)文件。
-
- /// <summary>
- /// FTP的服务器地址,格式为ftp://192.168.1.234:8021/。
- /// </summary>
- public string FTPCONSTR { get; set; }
- /// <summary>
- /// //FTP服务器的用户名
- /// </summary>
- private string FTPUSERID { get; set; }
- /// <summary>
- /// //FTP服务器的密码
- /// </summary>
- private string FTPPASSWORD { get; set; }
- private string ftpIP { get; set; }
- private string ftpPort { get; set; }
- public FTPHelper(string ip = "IP", string username = "登录用户名", string password = "用户密码", string port = "端口")
- {
- FTPCONSTR = string.Format("{0}://{1}:{2}/", "ftp", ip, port);
- FTPUSERID = username;
- FTPPASSWORD = password;
- }
- /// <summary>
- /// 上传文件到远程ftp
- /// </summary>
- /// <param name="path">本地的文件目录</param>
- /// <param name="name">文件名称</param>
- /// <returns></returns>
- public bool UploadFile(string path, string name)
- {
- FileInfo f = new FileInfo(path);
- path = FTPCONSTR + name;//这个路径是我要传到ftp目录下的这个目录下
- FtpWebRequest reqFtp = (FtpWebRequest)FtpWebRequest.Create(new Uri(path));
- reqFtp.Method = WebRequestMethods.Ftp.UploadFile;
- reqFtp.UsePassive = false;//只需要添加这一句话
- reqFtp.UseBinary = true;
- reqFtp.Credentials = new NetworkCredential(FTPUSERID, FTPPASSWORD);
- reqFtp.KeepAlive = false;
- reqFtp.Method = WebRequestMethods.Ftp.UploadFile;
- reqFtp.ContentLength = f.Length;
- int buffLength = 2048;
- byte[] buff = new byte[buffLength];
- int contentLen;
- FileStream fs = f.OpenRead();
- try
- {
- Stream strm = reqFtp.GetRequestStream();
- contentLen = fs.Read(buff, 0, buffLength);
- while (contentLen != 0)
- {
- strm.Write(buff, 0, contentLen);
- contentLen = fs.Read(buff, 0, buffLength);
- }
- strm.Close();
- fs.Close();
- return true;
- }
- catch (Exception ex)
- {
- return false;
- }
- }
- string txtFilePath="";
- try
- {
- OpenFileDialog openFileDialogTemp = new OpenFileDialog();
- openFileDialogTemp.Title = "选择要上传的文件";
- DialogResult dr = openFileDialogTemp.ShowDialog();
- if (!File.Exists(openFileDialogTemp.FileName))
- {
- GLOBALS.msgbox("内容为空,请选择文件");
- return;
- }
- if (dr == DialogResult.OK)
- {
- txtFilePath= openFileDialogTemp.FileName;
- string filePath = this.txtFilePath.Text;
-
- }
- }
- catch (Exception ex)
- {
-
- }
- string id = DateTime.Now.ToString("yyyyMMddHHmmss");
- string isPath = DateTime.Now.ToString("yyyy-MM-dd");
- string filePath = txtFilePath;
- string uploadUrl = isPath + "\\" + id + ".jpg";
- FTPHelper FTPHelper = new FTPHelper();
- bool uploadresult = FTPHelper.UploadFile(filePath, uploadUrl);