.NET Core FTP CoreFtp使用方法及示例(demo)代码

本文主要介绍.NET Core 中操作ftp的库CoreFtp的使用方法，CoreFTP是一个完全用C＃编写的简单开源.NET FTP库，它针对netstandard 1.6，这意味着它将在.NET Core（也就是它的名称）和完整的.NET框架下运行。这个软件包的启发是由于缺少提供FTP功能的软件包，并且支持netstandard API。

1、引用CoreFtp的方法

1）下载代码引用

下载地址：https://github.com/sparkeh9/CoreFTP/releases

2）使用Nuget引用

在Nuget管理程序中，搜索'CoreFtp' =》选中然后点击'安装'。

相关文档：VS(Visual Studio)中Nuget的使用

2、连接FTP/S server

using ( var ftpClient = new FtpClient( new FtpClientConfiguration                                             {                                                 Host = "localhost",                                                 Username = "user",                                                 Password = "password",                                                 Port = 990,                                                 EncryptionType = FtpEncryption.Implicit,                                                 IgnoreCertificateErrors = true                                             } ) ){    await ftpClient.LoginAsync();}

3、从FTP/S server下载文件到本地

using ( var ftpClient = new FtpClient( new FtpClientConfiguration                                             {                                                 Host = "localhost",                                                 Username = "user",                                                 Password = "password"                                             } ) ){var tempFile = new FileInfo( "C:\\test.png" );    await ftpClient.LoginAsync();    using ( var ftpReadStream = await ftpClient.OpenFileReadStreamAsync( "test.png" ) )    {        using ( var fileWriteStream = tempFile.OpenWrite() )        {            await ftpReadStream.CopyToAsync( fileWriteStream );        }    }}

4、上传文件到FTP Server

using ( var ftpClient = new FtpClient( new FtpClientConfiguration                                    {                                        Host = "localhost",                                        Username = "user",                                        Password = "password"                                    } ) ){var fileinfo = new FileInfo( "C:\\test.png" );    await ftpClient.LoginAsync();        using ( var writeStream = await ftpClient.OpenFileWriteStreamAsync( "test.png" ) )    {        var fileReadStream = fileinfo.OpenRead();        await fileReadStream.CopyToAsync( writeStream );    }}

5、改变FTP Server当前目录、创建目录、删除文件，删除目录

using (var ftpClient = new FtpClient(new FtpClientConfiguration           {               Host = "localhost",               Username = "user",               Password = "password"            }))           {               var fileinfo = new FileInfo("C:\\test.png");               await ftpClient.LoginAsync();               //改变目录               await ftpClient.ChangeWorkingDirectoryAsync("work");               //创建目录               await ftpClient.CreateDirectoryAsync("abc");               //删除目录               await ftpClient.DeleteDirectoryAsync("abc");               //删除文件               await ftpClient.DeleteFileAsync("test.png");           }

官方文档：https://github.com/sparkeh9/CoreFTP