ftp

1.url的确定

string ftpServerIP = "29.184.249.98";

string path=new Uri("ftp://"+ftpServerIP+"/").ToString();

2. 创建连接

FtpWebRequest reqFTP;

public void Connection(string path)

{

try

{

//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;

// 指定数据传输类型

reqFTP.UsePassive = false;
reqFTP.KeepAlive = false;
reqFTP.Credentials = new NetworkCredential(username, password);

}

catch(Exception ex)

{

Console.WriteLine(ex.Message);

}

}

3

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

namespace ftptest
{
class FtpMathod
{
const string username = "spc";
const string password = "iscxans9750";
FtpWebRequest reqFTP;

public string[] GetDeleteFolderArray(string path)
{
FtpDirInfo ftpDirInfo = new FtpDirInfo();
string[] deleteFolders;
// StringBuilder 字符串变量（非线程安全）
StringBuilder result = new StringBuilder();
try
{
Connecion(path);
reqFTP.Method = WebRequestMethods.Ftp.ListDirectoryDetails;
FtpWebResponse response = (FtpWebResponse)reqFTP.GetResponse();
Encoding encoding = Encoding.GetEncoding("GB2312");
StreamReader reader = new StreamReader(response.GetResponseStream(), encoding);
String line = reader.ReadLine();
bool flag = false;
while (line != null)
{
FileStruct f = new FileStruct();
f = ftpDirInfo.GetList(line);
String fileName = f.Name;
if (f.IsDirectory)
{
result.Append(fileName);
result.Append("\n");
flag = true;
line = reader.ReadLine();
continue;
}
line = reader.ReadLine();
}
reader.Close();
response.Close();
if (flag)
{
result.Remove(result.ToString().LastIndexOf("\n"), 1);
return result.ToString().Split('\n');
}
else
{
deleteFolders = null;
return deleteFolders;
}
}
catch (Exception ex)
{
Console.WriteLine(ex.ToString(), "获取文件夹数组过程中出现异常");
deleteFolders = null;
return deleteFolders;
}
}

//获取子文件数组
public string[] GetDeleteFileArray(string path)
{
FtpDirInfo ftpDirInfo = new FtpDirInfo();
List<string> ftpList = new List<string>();
string[] DeleteFiles;
StringBuilder result = new StringBuilder();
try
{
Connecion(path);
reqFTP.Method = WebRequestMethods.Ftp.ListDirectoryDetails;
FtpWebResponse response = (FtpWebResponse)reqFTP.GetResponse();
Encoding encoding = Encoding.GetEncoding("GB2312");
StreamReader reader = new StreamReader(response.GetResponseStream(), encoding);
string line = reader.ReadLine();
bool flag = false;
while (line != null)
{
ftpList.Add(line);
FileStruct f = new FileStruct();
f = ftpDirInfo.GetList(line);
String fileName = f.Name;
//排除非文件夹
if (!f.IsDirectory)
{
result.Append(fileName);
result.Append("\n");
flag = true;
line = reader.ReadLine();
continue;
}
line = reader.ReadLine();
}
reader.Close();
response.Close();
if (flag)
{
result.Remove(result.ToString().LastIndexOf("\n"), 1);
return result.ToString().Split('\n');
}
else
{
DeleteFiles = null;
return DeleteFiles;
}

}
catch (Exception ex)
{
Console.WriteLine(ex.ToString(), "获取文件数组过程中出现异常");
DeleteFiles = null;
return DeleteFiles;
}
}
public void DeleteFile(string path)
{
try
{
Connecion(path);

reqFTP.Method = WebRequestMethods.Ftp.DeleteFile;
FtpWebResponse response = (FtpWebResponse)reqFTP.GetResponse();
response.Close();
}
catch (Exception ex)
{
Console.WriteLine(ex.ToString(), "删除文件过程中出现错误");
}
}
public void DeleteDir(string path)
{
try
{
string[] folderArray = GetDeleteFolderArray(path);
string[] fileArray = GetDeleteFileArray(path);

ArrayList folderArrayList = new ArrayList();
ArrayList fileArrayList = new ArrayList();

//重新构造存放文件夹的数组(用动态数组实现)
for (int i = 0; i < folderArray.Length; i++)
{
if (folderArray[i] == "." || folderArray[i] == ".." || folderArray[i] == "")
{
}
else
{
folderArrayList.Add(folderArray[i]);
}
}

//重新构造存放文件的数组(用动态数组实现)
for (int i = 0; i < fileArray.Length; i++)
{
if (fileArray[i] == "")
{
}
else
{
fileArrayList.Add(fileArray[i]);
}
}

if (folderArrayList.Count == 0 && fileArrayList.Count == 0)
{
DeleteFolder(path);
}
else if (folderArrayList.Count == 0 && fileArrayList.Count != 0)
{
for (int i = 0; i < fileArrayList.Count; i++)
{
string fileUri = path + "/" + fileArrayList[i];
DeleteFile(fileUri);
}
DeleteFolder(path);
}
else if (folderArrayList.Count != 0 && fileArrayList.Count != 0)
{
for (int i = 0; i < fileArrayList.Count; i++)
{
string fileUri = path + "/" + fileArrayList[i];
DeleteFile(fileUri);
}
for (int i = 0; i < folderArrayList.Count; i++)
{
string dirUri = path + "/" + folderArrayList[i];
DeleteDir(dirUri);
}
DeleteFolder(path);
}
else if (folderArrayList.Count != 0 && fileArrayList.Count == 0)
{
for (int i = 0; i < folderArrayList.Count; i++)
{
string dirUri = path + "/" + folderArrayList[i];
DeleteDir(dirUri);
}
DeleteFolder(path);
}
}
catch (Exception ex)
{
Console.WriteLine(ex.ToString(), "删除目录过程中出现异常");
}
}
public void DeleteFolder(string path) //path为所要删除的文件夹的全路径
{
try
{
Connecion(path);

reqFTP.Method = WebRequestMethods.Ftp.RemoveDirectory;
FtpWebResponse response = (FtpWebResponse)reqFTP.GetResponse();
response.Close();
}
catch (Exception ex)
{
Console.WriteLine(ex.ToString(), "删除文件夹过程中出现错误");
}
}

public void CreateFolder(string path) //path为所要删除的文件夹的全路径
{
try
{
Connecion(path);

reqFTP.Method = WebRequestMethods.Ftp.MakeDirectory;
FtpWebResponse response = (FtpWebResponse)reqFTP.GetResponse();
response.Close();
}
catch (Exception ex)
{
Console.WriteLine(ex.ToString(), "删除文件夹过程中出现错误");
}
}
public void Connecion(string path)
{
try
{ // 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;
// 指定数据传输类型
reqFTP.UsePassive = false;
reqFTP.KeepAlive = false;
reqFTP.Credentials = new NetworkCredential(username, password);
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
}
}

public void UploadFile(string path, string dir) //path为所要删除的文件夹的全路径
{

try
{
Connecion(path);
reqFTP.Method = WebRequestMethods.Ftp.UploadFile;
FtpWebResponse response = (FtpWebResponse)reqFTP.GetResponse();

reqFTP.Credentials = new NetworkCredential(username, password);

// Copy the contents of the file to the request stream.
StreamReader sourceStream = new StreamReader(dir);
byte[] fileContents = Encoding.UTF8.GetBytes(sourceStream.ReadToEnd());
sourceStream.Close();
reqFTP.ContentLength = fileContents.Length;

Stream requestStream = reqFTP.GetRequestStream();
requestStream.Write(fileContents, 0, fileContents.Length);
requestStream.Close();

response = (FtpWebResponse)reqFTP.GetResponse();

Console.WriteLine("Upload File Complete, status {0}", response.StatusDescription);

response.Close();
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
}
}

public void GetFileListArray(string path, string dir)
{
try
{
GetFtpFileList(path);

if (!GetFtpFileList(path).Contains("ass"))
{
path += "ass";
CreateFolder(path);
}
else
{
path += "ass";
}
if (!GetFtpFileList(path).Contains("20101002"))
{
path += "/" +"20101002";
CreateFolder(path);
}
else
{
path += "/" + "20101002";
}
path += "/" + "1.html";

UploadFile(path, dir);

}
catch (Exception ex)
{
Console.WriteLine(ex.ToString(), "获取文件数组过程中出现异常");
}
}
public List<string> GetFtpFileList(string path)
{
List<string> ftpList = new List<string>();

try
{

FtpDirInfo ftpDirInfo = new FtpDirInfo();

StringBuilder result = new StringBuilder();

Connecion(path);
reqFTP.Method = WebRequestMethods.Ftp.ListDirectory;

FtpWebResponse response = (FtpWebResponse)reqFTP.GetResponse();
Encoding encoding = Encoding.GetEncoding("GB2312");
StreamReader reader = new StreamReader(response.GetResponseStream(), encoding);
string line = reader.ReadLine();

while (line != null)
{
ftpList.Add(line);
FileStruct f = new FileStruct();
f = ftpDirInfo.GetList(line);
String fileName = f.Name;
//排除非文件夹
if (!f.IsDirectory)
{
line = reader.ReadLine();
continue;
}
line = reader.ReadLine();
}
reader.Close();
response.Close();
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
}
return ftpList;

}
}
}