废话不说,直接上代码,一目了然
class FtpClient { private string host = null; private string user = null; private string pass = null; private FtpWebRequest ftpRequest = null; private FtpWebResponse ftpResponse = null; private Stream ftpStream = null; private int bufferSize = 8192; public bool BinaryMode = true; /* Construct Object */ public FtpClient(string hostIP, string userName, string password) { host = hostIP; user = userName; pass = password; } /* FTP Get */ public void get(string remoteFile, string localFile) { try { /* Create an FTP Request */ ftpRequest = (FtpWebRequest)FtpWebRequest.Create(host + "/" + remoteFile); /* Log in to the FTP Server with the User Name and Password Provided */ ftpRequest.Credentials = new NetworkCredential(user, pass); /* When in doubt, use these options */ ftpRequest.UseBinary = BinaryMode; ftpRequest.UsePassive = true; ftpRequest.KeepAlive = true; /* Specify the Type of FTP Request */ ftpRequest.Method = WebRequestMethods.Ftp.DownloadFile; /* Establish Return Communication with the FTP Server */ ftpResponse = (FtpWebResponse)ftpRequest.GetResponse(); /* Get the FTP Server's Response Stream */ ftpStream = ftpResponse.GetResponseStream(); /* Open a File Stream to Write the Downloaded File */ FileStream localFileStream = new FileStream(localFile, FileMode.Create); /* Buffer for the Downloaded Data */ byte[] byteBuffer = new byte[bufferSize]; int bytesRead = ftpStream.Read(byteBuffer, 0, bufferSize); /* Download the File by Writing the Buffered Data Until the Transfer is Complete */ try { while (bytesRead > 0) { localFileStream.Write(byteBuffer, 0, bytesRead); bytesRead = ftpStream.Read(byteBuffer, 0, bufferSize); } } catch (Exception ex) { Console.WriteLine(ex.ToString()); } /* Resource Cleanup */ localFileStream.Close(); ftpStream.Close(); ftpResponse.Close(); ftpRequest = null; } catch (Exception ex) { Console.WriteLine(ex.ToString()); } return; } /* FTP Put */ public void put(string remoteFile, string localFile) { try { /* Create an FTP Request */ ftpRequest = (FtpWebRequest)FtpWebRequest.Create(host + "/" + remoteFile); /* Log in to the FTP Server with the User Name and Password Provided */ ftpRequest.Credentials = new NetworkCredential(user, pass); /* When in doubt, use these options */ ftpRequest.UseBinary = BinaryMode; ftpRequest.UsePassive = true; ftpRequest.KeepAlive = true; /* Specify the Type of FTP Request */ ftpRequest.Method = WebRequestMethods.Ftp.UploadFile; /* Establish Return Communication with the FTP Server */ ftpStream = ftpRequest.GetRequestStream(); /* Open a File Stream to Read the File for Upload */ FileStream localFileStream = new FileStream(localFile, FileMode.Open); /* Buffer for the Downloaded Data */ byte[] byteBuffer = new byte[bufferSize]; int bytesSent = localFileStream.Read(byteBuffer, 0, bufferSize); /* Upload the File by Sending the Buffered Data Until the Transfer is Complete */ try { while (bytesSent != 0) { ftpStream.Write(byteBuffer, 0, bytesSent); bytesSent = localFileStream.Read(byteBuffer, 0, bufferSize); } } catch (Exception ex) { Console.WriteLine(ex.ToString()); } /* Resource Cleanup */ localFileStream.Close(); ftpStream.Close(); ftpRequest = null; } catch (Exception ex) { Console.WriteLine(ex.ToString()); } return; } /* Delete File */ public void delete(string remoteFile) { try { /* Create an FTP Request */ ftpRequest = (FtpWebRequest)WebRequest.Create(host + "/" + remoteFile); /* Log in to the FTP Server with the User Name and Password Provided */ ftpRequest.Credentials = new NetworkCredential(user, pass); /* When in doubt, use these options */ ftpRequest.UseBinary = BinaryMode; ftpRequest.UsePassive = true; ftpRequest.KeepAlive = true; /* Specify the Type of FTP Request */ ftpRequest.Method = WebRequestMethods.Ftp.DeleteFile; /* Establish Return Communication with the FTP Server */ ftpResponse = (FtpWebResponse)ftpRequest.GetResponse(); /* Resource Cleanup */ ftpResponse.Close(); ftpRequest = null; } catch (Exception ex) { Console.WriteLine(ex.ToString()); } return; } /* Rename File */ public void rename(string currentFileNameAndPath, string newFileName) { try { /* Create an FTP Request */ ftpRequest = (FtpWebRequest)WebRequest.Create(host + "/" + currentFileNameAndPath); /* Log in to the FTP Server with the User Name and Password Provided */ ftpRequest.Credentials = new NetworkCredential(user, pass); /* When in doubt, use these options */ ftpRequest.UseBinary = true; ftpRequest.UsePassive = true; ftpRequest.KeepAlive = true; /* Specify the Type of FTP Request */ ftpRequest.Method = WebRequestMethods.Ftp.Rename; /* Rename the File */ ftpRequest.RenameTo = newFileName; /* Establish Return Communication with the FTP Server */ ftpResponse = (FtpWebResponse)ftpRequest.GetResponse(); /* Resource Cleanup */ ftpResponse.Close(); ftpRequest = null; } catch (Exception ex) { Console.WriteLine(ex.ToString()); } return; } /* Create a New Directory on the FTP Server */ public void createDirectory(string newDirectory) { try { /* Create an FTP Request */ ftpRequest = (FtpWebRequest)WebRequest.Create(host + "/" + newDirectory); /* Log in to the FTP Server with the User Name and Password Provided */ ftpRequest.Credentials = new NetworkCredential(user, pass); /* When in doubt, use these options */ ftpRequest.UseBinary = true; ftpRequest.UsePassive = true; ftpRequest.KeepAlive = true; /* Specify the Type of FTP Request */ ftpRequest.Method = WebRequestMethods.Ftp.MakeDirectory; /* Establish Return Communication with the FTP Server */ ftpResponse = (FtpWebResponse)ftpRequest.GetResponse(); /* Resource Cleanup */ ftpResponse.Close(); ftpRequest = null; } catch (Exception ex) { Console.WriteLine(ex.ToString()); } return; } /* Remove a Directory on the FTP Server */ public void removeDirectory(string directory) { try { /* Create an FTP Request */ ftpRequest = (FtpWebRequest)WebRequest.Create(host + "/" + directory); /* Log in to the FTP Server with the User Name and Password Provided */ ftpRequest.Credentials = new NetworkCredential(user, pass); /* When in doubt, use these options */ ftpRequest.UseBinary = true; ftpRequest.UsePassive = true; ftpRequest.KeepAlive = true; /* Specify the Type of FTP Request */ ftpRequest.Method = WebRequestMethods.Ftp.RemoveDirectory; /* Establish Return Communication with the FTP Server */ ftpResponse = (FtpWebResponse)ftpRequest.GetResponse(); /* Resource Cleanup */ ftpResponse.Close(); ftpRequest = null; } catch (Exception ex) { Console.WriteLine(ex.ToString()); } return; } }
使用方法:
... FtpClient ftpClient = new FtpClient(@"ftp://127.0.0.1", "username", "password"); ftpClient.put(@"ftptest.dat", @"c:\temp\ftptest.dat"); ftpClient.get(@"ftptest.dat", @"c:\temp\ftptest.loopback");