C#调用第三方工具完成FTP操作
一、FileZilla
Filezilla分为client和server。其中FileZilla Server是Windows平台下一个小巧的第三方FTP服务器软件,系统资源也占用非常小,可以让你快速简单的建立自己的FTP服务器。
打开FileZilla,进行如下操作
下图红色区域就是linux系统的文件目录,可以直接把windows下的文件直接拖拽进去。
二、WinSCP
跟FileZilla一样,也是一款十分方便的文件传输工具。WinSCP是连接Windows和Linux的。
WinSCP .NET Assembly and SFTP
https://winscp.net/eng/docs/library#csharp
// Setup session options SessionOptions sessionOptions = new SessionOptions { Protocol = Protocol.Sftp, HostName = "example.com", UserName = "user", Password = "mypassword", SshHostKeyFingerprint = "ssh-rsa 2048 xxxxxxxxxxx...=" }; using (Session session = new Session()) { // Connect session.Open(sessionOptions); // Upload files TransferOptions transferOptions = new TransferOptions(); transferOptions.TransferMode = TransferMode.Binary; TransferOperationResult transferResult; transferResult = session.PutFiles(@"d:\toupload\*", "/home/user/", false, transferOptions); // Throw on any error transferResult.Check(); // Print results foreach (TransferEventArgs transfer in transferResult.Transfers) { Console.WriteLine("Upload of {0} succeeded", transfer.FileName); } }
三、FluentFTP
FluentFTP是一款老外开发的基于.Net的支持FTP及的FTPS 的FTP类库,FluentFTP是完全托管的FTP客户端,被设计为易于使用和易于扩展。它支持文件和目录列表,上传和下载文件和SSL / TLS连接。
它底层由Socket实现,可以连接到Unix和Windows IIS建立FTP的服务器,
github:https://github.com/robinrodricks/FluentFTP
举例:
// create an FTP client FtpClient client = new FtpClient("123.123.123.123"); // if you don't specify login credentials, we use the "anonymous" user account client.Credentials = new NetworkCredential("david", "pass123"); // begin connecting to the server client.Connect(); // get a list of files and directories in the "/htdocs" folder foreach (FtpListItem item in client.GetListing("/htdocs")) { // if this is a file if (item.Type == FtpFileSystemObjectType.File){ // get the file size long size = client.GetFileSize(item.FullName); } // get modified date/time of the file or folder DateTime time = client.GetModifiedTime(item.FullName); // calculate a hash for the file on the server side (default algorithm) FtpHash hash = client.GetHash(item.FullName); } // upload a file client.UploadFile(@"C:\MyVideo.mp4", "/htdocs/big.txt"); // rename the uploaded file client.Rename("/htdocs/big.txt", "/htdocs/big2.txt"); // download the file again client.DownloadFile(@"C:\MyVideo_2.mp4", "/htdocs/big2.txt"); // delete the file client.DeleteFile("/htdocs/big2.txt"); // delete a folder recursively client.DeleteDirectory("/htdocs/extras/"); // check if a file exists if (client.FileExists("/htdocs/big2.txt")){ } // check if a folder exists if (client.DirectoryExists("/htdocs/extras/")){ } // upload a file and retry 3 times before giving up client.RetryAttempts = 3; client.UploadFile(@"C:\MyVideo.mp4", "/htdocs/big.txt", FtpExists.Overwrite, false, FtpVerify.Retry); // disconnect! good bye! client.Disconnect();
对FluentFTP部分操作封装类
public class FtpFileMetadata { public long FileLength { get; set; } public string MD5Hash { get; set; } public DateTime LastModifyTime { get; set; } } public class FtpHelper { private FtpClient _client = null; private string _host = "127.0.0.1"; private int _port = 21; private string _username = "Anonymous"; private string _password = ""; private string _workingDirectory = ""; public string WorkingDirectory { get { return _workingDirectory; } } public FtpHelper(string host, int port, string username, string password) { _host = host; _port = port; _username = username; _password = password; } public Stream GetStream(string remotePath) { Open(); return _client.OpenRead(remotePath); } public void Get(string localPath, string remotePath) { Open(); _client.DownloadFile(localPath, remotePath, true); } public void Upload(Stream s, string remotePath) { Open(); _client.Upload(s, remotePath, FtpExists.Overwrite, true); } public void Upload(string localFile, string remotePath) { Open(); using (FileStream fileStream = new FileStream(localFile, FileMode.Open)) { _client.Upload(fileStream, remotePath, FtpExists.Overwrite, true); } } public int UploadFiles(IEnumerable<string> localFiles, string remoteDir) { Open(); List<FileInfo> files = new List<FileInfo>(); foreach (var lf in localFiles) { files.Add(new FileInfo(lf)); } int count = _client.UploadFiles(files, remoteDir, FtpExists.Overwrite, true, FtpVerify.Retry); return count; } public void MkDir(string dirName) { Open(); _client.CreateDirectory(dirName); } public bool FileExists(string remotePath) { Open(); return _client.FileExists(remotePath); } public bool DirExists(string remoteDir) { Open(); return _client.DirectoryExists(remoteDir); } public FtpListItem[] List(string remoteDir) { Open(); var f = _client.GetListing(); FtpListItem[] listItems = _client.GetListing(remoteDir); return listItems; } public FtpFileMetadata Metadata(string remotePath) { Open(); long size = _client.GetFileSize(remotePath); DateTime lastModifyTime = _client.GetModifiedTime(remotePath); return new FtpFileMetadata() { FileLength = size, LastModifyTime = lastModifyTime }; } public bool TestConnection() { return _client.IsConnected; } public void SetWorkingDirectory(string remoteBaseDir) { Open(); if (!DirExists(remoteBaseDir)) MkDir(remoteBaseDir); _client.SetWorkingDirectory(remoteBaseDir); _workingDirectory = remoteBaseDir; } private void Open() { if (_client == null) { _client = new FtpClient(_host, new System.Net.NetworkCredential(_username, _password)); _client.Port = 21; _client.RetryAttempts = 3; if (!string.IsNullOrWhiteSpace(_workingDirectory)) { _client.SetWorkingDirectory(_workingDirectory); } } } }
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