WPF使用WinSCP实现FTP下载

wpF 使用 WinSCP 做 FTP 下载

Nuget 安装 WinSCP

当安装完成后进入安装后的目录 packages\WinSCP.5.21.6\tools 将两个编程客栈文件拷贝 Debug 调试（运行）目录下。

下面开始代码实现使用 WinSCP FTP 下载。

示例代码

1） xaml 代码如下：

<wpfdev:Windowx:Class="WpfApp1.Window1"
XMLns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
xmlns:wpfdev="https://github.com/WPFDevelopersOrg/WPFDevelopers"
xmlns:local="clr-namespace:WpfApp1"
mc:Ignorable="d"Windowstyle="ToolWindow"
Title="WinSCP-FTP"Height="450"Width="800">
<Grid>
<WrapPanelVerticalAlignment="Center"
HorizontalAlignment="Center">
<TextblockName="myTextBlock"Margin="10,0"VerticalAlignment="Center"/>
<wpfdev:CircularProgressBarName="myCircularProgressBar"
BrushStrokeThickness="2"
StrokeThickness="5"
Size="20,20"
BorderBrush="#42ABAC"
Background="#E14D5F"
Value="0"/>
<ButtonStyle="{StaticResourcePrimaryButton}"Margin="10,0"Content="Download"Click="Button_Click"/>
</W编程客栈rapPanel>
</Grid>
</wpfdev:Window>

2） cs 代码如下：

usingSystem;
usingSystem.IO;
usingSystem.Threading.Tasks;
usingSystem.Windows;
usingWinSCP;

namespaceWpfApp1
{
///<summary>
///Window1.xaml的交互逻辑
///</summary>
publicpartialclassWindow1
{
publicWindow1()
{
InitializeComponent();
}

privatevoidButton_Click(objectsender,RoutedEventArgse)
{
myCircularProgressBar.Value=0;
Task.Run(()=>
{
Download();
});
}
boolDownload()
{
try
{

SessionOptionssessionOptions=newSessionOptions
{
Protocol=Protocol.Ftp,
HostName="127.0.0.1",
UserName="wpfdevelopers",
Password="wpfdevelopers",

};
stringlocalPath=System.IO.Path.Combine(AppDomain.CurrentDomain.BaseDirectory,"packages");
if(Directory编程.Exists(localPath))
DeleteDirectory(localPath);
stringremotePath="packages";
using(Sessionsession=newSession())
{
session.FileTransferProgress+=Session_FileTransferProgress;
session.Open(sessionOptions);
TransferOptionstransferOptions=newTransferOptions();
transferOptions.TransferMode=TransferMode.Binary;
TransferOperationResulttransferResult=session.GetFiles(remotePath,localPath,false,transferOptions);
transferResult.Check();
}
returntrue;
}
catch(Exception)
{
returnfalse;
}
}
voidDeleteDirectory(stringtarget_dir)
{
string[]files=Dwww.devze.comirectory.GetFiles(target_dir);
string[]dirs=Directory.GetDirectories(target_dir);
foreach(stringfileinfiles)
{
File.SetAttributes编程客栈(file开发者_JS培训,FileAttributes.Normal);
File.Delete(file);
}
foreach(stringdirindirs)
{
DeleteDirectory(dir);
}
Directory.Delete(target_dir,false);
}
privatevoidSession_FileTransferProgress(objectsender,FileTransferProgressEventArgse)
{
Dispatcher.BeginInvoke(newAction(()=>
{

varvalue=(int)(e.OverallProgress*100);
myCircularProgressBar.Value=value;
if(value==100)
myTextBlock.Text="文件已经全部下载完成";
else
myTextBlock.Text=$"正在下载文件{System.IO.Path.GetFileName(e.FileName)}";
}));

}
}
}

效果图

下载完成的文件

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