ftp

最近做了一个关于ftp的小程序，欢迎批评指正。

1）首先我现在本机模拟了一个服务器。

  a）需要下载一个Ser-U的软件的软件，现在本地设置一个服务器。

      下载地址：http://www.cnd8.com/zt/ServU/

       设置域：http://jingyan.baidu.com/article/3065b3b6d66dd8becff8a482.html（注意版本的选择）

2）核心代码如下：

public class FtpWeb
{
string ftpServerIP;
string ftpRemotePath;
string ftpUserID;
string ftpPassword;
string ftpURI;
/// <summary>
/// 连接FTP
/// </summary>
/// <param name="FtpServerIP">FTP连接地址</param>
/// <param name="FtpRemotePath">指定FTP连接成功后的当前目录, 如果不指定即默认为根目录</param>
/// <param name="FtpUserID">用户名</param>
/// <param name="FtpPassword">密码</param>
public FtpWeb(string FtpServerIP, string FtpRemotePath, string FtpUserID, string FtpPassword)
{
ftpServerIP = FtpServerIP;
ftpRemotePath = FtpRemotePath;
ftpUserID = FtpUserID;
ftpPassword = FtpPassword;
ftpURI = "ftp://" + ftpServerIP + "/" + ftpRemotePath + "/";
}
public void Upload(string filename)
{
FileInfo fileInf = new FileInfo(filename);
string uri = ftpURI + fileInf.Name;
FtpWebRequest reqFTP;

reqFTP = (FtpWebRequest)FtpWebRequest.Create(new Uri(uri));
reqFTP.Credentials = new NetworkCredential(ftpUserID, ftpPassword);
reqFTP.KeepAlive = false;
reqFTP.Method = WebRequestMethods.Ftp.UploadFile;
reqFTP.UseBinary = true;
reqFTP.ContentLength = fileInf.Length;
int buffLength = 2048;
byte[] buff = new byte[buffLength];
int contentLen;
FileStream fs = fileInf.OpenRead();
try
{
Stream strm = reqFTP.GetRequestStream();
contentLen = fs.Read(buff, 0, buffLength);
while (contentLen != 0)
{
strm.Write(buff, 0, contentLen);
contentLen = fs.Read(buff, 0, buffLength);
}
strm.Close();
fs.Close();
}
catch (Exception ex)
{
MessageBox.Show("FtpWeb" + "Upload Error --> " + ex.Message);
return;
}

}
/// <summary>
/// 下载
/// </summary>
/// <param name="filePath"></param>
/// <param name="fileName"></param>
public bool Download(string filePath, string fileName)
{
FtpWebRequest reqFTP;
try
{
//要下载的服务器的文件路径
FileStream outputStream = new FileStream(filePath + "\" + fileName, FileMode.Create);
//,FileAccess.Read,FileShare.ReadWrite

reqFTP = (FtpWebRequest)FtpWebRequest.Create(new Uri(ftpURI + fileName));
reqFTP.Method = WebRequestMethods.Ftp.DownloadFile;
reqFTP.UseBinary = true;
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);
while (readCount > 0)
{
outputStream.Write(buffer, 0, readCount);
readCount = ftpStream.Read(buffer, 0, bufferSize);
}

ftpStream.Close();
outputStream.Close();
response.Close();
return true;
}
catch (Exception ex)
{
MessageBox.Show("FtpWeb" + "Download Error --> " + ex.Message);
return false;
}
}
/// <summary>
/// 从ftp服务器上获得文件列表
/// </summary>
/// <param name="RequedstPath">服务器下的相对路径</param>
/// <returns></returns>
public List<string> GetFile(string RequedstPath, string username, string password, string path)
{
List<string> strs = new List<string>();
try
{
string uri = "ftp://" + path + "/" + RequedstPath; //目标路径 path为服务器地址
//"ftp://" + ftpServerIP + "/" + ftpRemotePath + "/";
FtpWebRequest reqFTP = (FtpWebRequest)FtpWebRequest.Create(new Uri(uri));
// ftp用户名和密码
reqFTP.Credentials = new NetworkCredential(username, password);
reqFTP.Method = WebRequestMethods.Ftp.ListDirectoryDetails;
WebResponse response = reqFTP.GetResponse();
StreamReader reader = new StreamReader(response.GetResponseStream());//中文文件名

string line = reader.ReadLine();
while (line != null)
{
if (!line.Contains("<DIR>"))
{
//string msg = line.Substring(39).Trim();
string msg = line.Split().Last();
if (msg.Length > 1 && msg.Split('.').Length == 2)
{
strs.Add(msg);
}
}
line = reader.ReadLine();
}
reader.Close();
response.Close();
return strs;
}
catch (Exception ex)
{
Console.WriteLine("获取文件出错：" + ex.Message);
}
return strs;
}
/// <summary>
/// 创建文件夹
/// </summary>
/// <param name="dirName"></param>
public void MakeDir(string dirName)
{
FtpWebRequest reqFTP;
try
{
// dirName = name of the directory to create.
reqFTP = (FtpWebRequest)FtpWebRequest.Create(new Uri(ftpURI + dirName));
reqFTP.Method = WebRequestMethods.Ftp.MakeDirectory;
reqFTP.UseBinary = true;
reqFTP.Credentials = new NetworkCredential(ftpUserID, ftpPassword);
FtpWebResponse response = (FtpWebResponse)reqFTP.GetResponse();
Stream ftpStream = response.GetResponseStream();
ftpStream.Close();
response.Close();
}
catch (Exception ex)
{
MessageBox.Show("FtpWeb" + "MakeDir Error --> " + ex.Message);
}
}
}