C#WPF做FTP上传下载获取文件列表

Xaml.cs:

using Microsoft.Win32;
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;

namespace ConvertData
{
///

/// MainWindow.xaml 的交互逻辑
///

public partial class MainWindow : Window
{
string ftpServerIP = "192.168.20.249";
string ftpUserID = "simed";
string ftpPassword = "simed";

public MainWindow()
{
InitializeComponent();
}

//获取文件列表
private void Button_Click_1(object sender, RoutedEventArgs e)
{
FtpUpDown ftpUpDown = new FtpUpDown(ftpServerIP, ftpUserID, ftpPassword);
Paragraph pa = new Paragraph();
Run r = new Run();
string[] str = ftpUpDown.GetFileList("Test");
foreach (string item in str)
{
r.Text = item;
richTextBox1.AppendText(r.Text+"\n");
}
}
//上传
private void Button_Click_2(object sender, RoutedEventArgs e)
{
FtpUpDown ftp = new FtpUpDown(ftpServerIP, ftpUserID, ftpPassword);
string localpath = @"D:\image\5.txt";
string ftppath = ftpServerIP+@"\Test";
bool bol = ftp.Upload(localpath, ftppath);
if (bol == true)
MessageBox.Show("长传成功");
else
MessageBox.Show("上传失败");
}
//下载
private void Button_Click_3(object sender, RoutedEventArgs e)
{
string errorinfo;
string localpath = @"D:\image";
string filename="3.txt";
FtpUpDown ftp = new FtpUpDown(ftpServerIP, ftpUserID, ftpPassword);
bool bol = ftp.Download(localpath, filename, out errorinfo);
if (bol == true)
MessageBox.Show("下载成功");
else
MessageBox.Show("下载失败：" + errorinfo + "");
}
//退出
private void Button_Click_4(object sender, RoutedEventArgs e)
{
this.Close();
}

private void Button_Click_5(object sender, RoutedEventArgs e)
{
richTextBox1.Document.Blocks.Clear();
}
}
}

FtpUpDown.cs:

using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Net;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Documents;

namespace ConvertData
{
public class FtpUpDown
{
string ftpServerIP;
string ftpUserID;
string ftpPassword;
FtpWebRequest reqFTP;//FTP请求
private void Connect(String path)//连接ftp
{
// 根据uri创建FtpWebRequest对象
reqFTP = (FtpWebRequest)FtpWebRequest.Create(new Uri(path));
// 指定数据传输类型
reqFTP.UseBinary = true;
// ftp用户名和密码
reqFTP.Credentials = new NetworkCredential(ftpUserID, ftpPassword);
}
public FtpUpDown(string ftpServerIP, string ftpUserID, string ftpPassword)
{
this.ftpServerIP = ftpServerIP;
this.ftpUserID = ftpUserID;
this.ftpPassword = ftpPassword;
}

//三个重载函数从ftp服务器上获得文件列表
private string[] GetFileList(string path, string WRMethods)
{
string[] downloadFiles;
StringBuilder result = new StringBuilder();
try
{
Connect(path);
reqFTP.Method = WRMethods;
WebResponse response = reqFTP.GetResponse();
StreamReader reader = new StreamReader(response.GetResponseStream(), System.Text.Encoding.Default);//中文文件名
string line = reader.ReadLine();
while (line != null)
{
result.Append(line);
result.Append("\n");
line = reader.ReadLine();
}
result.Remove(result.ToString().LastIndexOf('\n'), 1);
reader.Close();
response.Close();
return result.ToString().Split('\n');
}
catch (Exception ex)
{
//Console.Write(ex.Message);
MessageBox.Show(ex.Message);
downloadFiles = null;
return downloadFiles;
}
}
public string[] GetFileList(string path)
{
return GetFileList("ftp://" + ftpServerIP + "/" + path, WebRequestMethods.Ftp.ListDirectory);
}
public string[] GetFileList()
{
return GetFileList("ftp://" + ftpServerIP + "/", WebRequestMethods.Ftp.ListDirectory);
}
//上传文件
public bool Upload(string localpath,string ftppath)
{
bool bol = false;
try
{
FileInfo fileInf = new FileInfo(localpath);
ftppath = ftppath.Replace("\\", "/");
string uri = "ftp://" + ftppath + "/" + fileInf.Name;
Connect(uri);//连接
// 默认为true，连接不会被关闭
// 在一个命令之后被执行
reqFTP.KeepAlive = false;
// 指定执行什么命令
reqFTP.Method = WebRequestMethods.Ftp.UploadFile;
// 上传文件时通知服务器文件的大小
reqFTP.ContentLength = fileInf.Length;
// 缓冲大小设置为kb
int buffLength = 2048;
byte[] buff = new byte[buffLength];
int contentLen;
// 打开一个文件流(System.IO.FileStream) 去读上传的文件
FileStream fs = fileInf.OpenRead();
try
{
// 把上传的文件写入流
Stream strm = reqFTP.GetRequestStream();
// 每次读文件流的kb
contentLen = fs.Read(buff, 0, buffLength);
// 流内容没有结束
while (contentLen != 0)
{
// 把内容从file stream 写入upload stream
strm.Write(buff, 0, contentLen);
contentLen = fs.Read(buff, 0, buffLength);
bol = true;
}
// 关闭两个流
strm.Close();
fs.Close();
}
catch (Exception ex)
{
MessageBox.Show(ex.Message, "Upload Error");
}
}
catch (Exception ex)
{
MessageBox.Show(ex.Message, "Upload Error");
}
return bol;
}
//下载文件
public bool Download(string localpath, string fileName, out string errorinfo)
{
try
{
String onlyFileName = Path.GetFileName(fileName);
string newFileName = localpath + "\\" + onlyFileName;

if (File.Exists(newFileName))
{
errorinfo = string.Format("本地文件{0}已存在,无法下载", newFileName);
return false;
}
string url = "ftp://" + ftpServerIP + "/Test/" + fileName;
Connect(url);//连接
reqFTP.Credentials = new NetworkCredential(ftpUserID, ftpPassword);
FtpWebResponse response = (FtpWebResponse)reqFTP.GetResponse();
Stream ftpStream = response.GetResponseStream();
long cl = response.ContentLength;
int bufferSize = 2048;
int readCount;
byte[] buffer = new byte[bufferSize];
readCount = ftpStream.Read(buffer, 0, bufferSize);

FileStream outputStream = new FileStream(newFileName, FileMode.Create);
while (readCount > 0)
{
outputStream.Write(buffer, 0, readCount);
readCount = ftpStream.Read(buffer, 0, bufferSize);
}
ftpStream.Close();
outputStream.Close();
response.Close();
errorinfo = "";
return true;
}
catch (Exception ex)
{
errorinfo = string.Format("因{0},无法下载", ex.Message);
return false;
}
}
//删除文件
public void DeleteFileName(string fileName)
{
try
{
FileInfo fileInf = new FileInfo(fileName);
string uri = "ftp://" + ftpServerIP + "/" + fileInf.Name;
Connect(uri);//连接
// 默认为true，连接不会被关闭
// 在一个命令之后被执行
reqFTP.KeepAlive = false;
// 指定执行什么命令
reqFTP.Method = WebRequestMethods.Ftp.DeleteFile;
FtpWebResponse response = (FtpWebResponse)reqFTP.GetResponse();
response.Close();
}
catch (Exception ex)
{
//Console.Write(ex.Message, "删除错误");
MessageBox.Show(ex.Message, "删除错误");
}
}
//创建目录

public void MakeDir(string dirName)
{
try
{
string uri = "ftp://" + ftpServerIP + "/" + dirName;
Connect(uri);//连接
reqFTP.Method = WebRequestMethods.Ftp.MakeDirectory;
FtpWebResponse response = (FtpWebResponse)reqFTP.GetResponse();
response.Close();
}
catch (Exception ex)
{
//Console.Write(ex.Message);
MessageBox.Show(ex.Message);
}
}
//删除目录
public void delDir(string dirName)
{
try
{
string uri = "ftp://" + ftpServerIP + "/" + dirName;
Connect(uri);//连接
reqFTP.Method = WebRequestMethods.Ftp.RemoveDirectory;
FtpWebResponse response = (FtpWebResponse)reqFTP.GetResponse();
response.Close();
}
catch (Exception ex)
{
//MessageBox.Show()
//Console.Write(ex.Message);
MessageBox.Show(ex.Message);
}
}
//获得文件大小
public long GetFileSize(string filename)
{
long fileSize = 0;
try
{
FileInfo fileInf = new FileInfo(filename);
string uri = "ftp://" + ftpServerIP + "/" + fileInf.Name;
Connect(uri);//连接
reqFTP.Method = WebRequestMethods.Ftp.GetFileSize;
FtpWebResponse response = (FtpWebResponse)reqFTP.GetResponse();
fileSize = response.ContentLength;
response.Close();
}
catch (Exception ex)
{
//Console.Write(ex.Message);
MessageBox.Show(ex.Message);
}
return fileSize;
}
//文件改名
public void Rename(string currentFilename, string newFilename)
{
try
{
FileInfo fileInf = new FileInfo(currentFilename);
string uri = "ftp://" + ftpServerIP + "/" + fileInf.Name;
Connect(uri);//连接
reqFTP.Method = WebRequestMethods.Ftp.Rename;
reqFTP.RenameTo = newFilename;
FtpWebResponse response = (FtpWebResponse)reqFTP.GetResponse();
response.Close();
}
catch (Exception ex)
{
//Console.Write(ex.Message);
MessageBox.Show(ex.Message);
}
}
//获得文件明晰
public string[] GetFilesDetailList()
{
return GetFileList("ftp://" + ftpServerIP + "/", WebRequestMethods.Ftp.ListDirectoryDetails);
}
//获得文件明晰
public string[] GetFilesDetailList(string path)
{
return GetFileList("ftp://" + ftpServerIP + "/" + path, WebRequestMethods.Ftp.ListDirectoryDetails);
}
}
}

转载于:https://www.cnblogs.com/len0031/p/3492258.html