ftpclient..doc

using System;
using System.Collections.Generic;
using System.Net;
using System.IO;

namespace FTP操作
{
/// / 默认不使用SSL,使用二进制传输方式,使用被动模式
///
/// s(host, userId, password, 21, null, false, true, true)
{
}

/// aram name="port">端口
/// 允许Ssl
/// 代理
/// 允许二进制
/// 允许被动模式
public FtpClient(string host, string userId, string password, int port, IWebProxy proxy, bool enableSsl, bool useBinary, bool usePassive)
{
this.userId = userId;
this.password = password;
if (host.ToLower().StartsWith("ftp://"))
{
this.host = host;
}
else
{
this.host = "ftp://" + host;
}
this.port = port;
this.proxy = proxy;
this.enableSsl = enableSsl;
this.useBinary = useBinary;
this.usePassive = usePassive;
}
#endregion

#region 主机
private string host = string.Empty;
/// #region 登录用户名
private string userId = string.Empty;
/// on 密码
private string password = string.Empty;
///
IWebProxy proxy = null;
/// }
}
#endregion

#region 端口
private int port = 21;
/// this.port = value;
}
}
#endregion

#region 设置是否允许Ssl
private bool enableSsl = false;
/// return enableSsl;
}
}
#endregion

#region 使用被动模式
private bool usePassive = true;
/// return usePassive;
}
set
{
this.usePassive = value;
}
}
#endregion

#region 二进制方式
private bool useBinary = true;
/// c bool UseBinary
{
get
{
return useBinary;
}
set
{
this.useBinary = value;
}
}
#endregion

#region 远端路径
private string remotePath = "/";
/// {
string result = "/";
if (!string.IsNullOrEmpty(value) && value != "/")
{
result = "/" + value.TrimStart('/').TrimEnd('/') + "/";
}
this.remotePath = result;
}
}
#endregion

#region 创建一个FTP连接
/// g url, string method)
{
//建立连接
FtpWebRequest request = (FtpWebRequest)WebRequest.Create(url);
request.Credentials = new NetworkCredential(this.userId, this.password);
request.Proxy = this.proxy;
request.KeepAlive = false;//命令执行完毕之后关闭连接
request.UseBinary = useBinary;
request.UsePassive = usePassive;
request.EnableSsl = enableSsl;
request.Method = method;
return request;
}
#endregion

#region 上传一个文件到远端路径下
/// /// 把文件上传到FTP服务器的RemotePath下
/// if (localFile.Exists)
{
string url = Host.TrimEnd('/') + RemotePath + remoteFileName;
FtpWebRequest request = CreateRequest(url, WebRequestMethods.Ftp.UploadFile);

//上传数据
using (Stream rs = request.GetRequestStream())
using (FileStream fs = localFile.OpenRead())
{
byte[] buffer = new byte[4096];//4K
int count = fs.Read(buffer, 0, buffer.Length);
while (count > 0)
{
rs.Write(buffer, 0, count);
count = fs.Read(buffer, 0, buffer.Length);
}
fs.Close();
result = true;
}
return result;
}
throw new Exception(string.Format("本地文件不存在,文件路径:{0}", localFile.FullName));
}
#endregion

#region 从FTP服务器上下载文件
/// 的文件名称
/// 本地文件名称
/// 返回一个值,指示是否下载成功
public bool Download(string serverName, string localName)
{
bool result = false;
using (FileStream fs = new FileStream(localName, FileMode.OpenOrCreate)) //创建或打开本地文件
{
//建立连接
string url = Host.TrimEnd('/') + RemotePath + serverName;
FtpWebRequest request = CreateRequest(url, WebRequestMethods.Ftp.DownloadFile);
request.ContentOffset = fs.Length;
using (FtpWebResponse response = (FtpWebResponse)request.GetResponse())
{
fs.Position = fs.Length;
byte[] buffer = new byte[4096];//4K
int count = response.GetResponseStream().Read(buffer, 0, buffer.Length);
while (count > 0)
{
fs.Write(buffer, 0, count);
count = response.GetResponseStream().Read(buffer, 0, buffer.Length);
}
response.GetResponseStream().Close();
}
result = true;
}
return result;
}
#endregion

#region 重命名FTP服务器上的文件
///
/// 返回一个值,指示更名是否成功
public bool Rename(string oldFileName, string newFileName)
{
bool result = false;
//建立连接
string url = Host.TrimEnd('/') + RemotePath + oldFileName;
FtpWebRequest request = CreateRequest(url, WebRequestMethods.Ftp.Rename);
request.RenameTo = newFileName;
using (FtpWebResponse response = (FtpWebResponse)request.GetResponse())
{
result = true;
}
return result;
}
#endregion

#region 从当前目录下获取文件列表
/// End('/') + RemotePath;
FtpWebRequest request = CreateRequest(url, WebRequestMethods.Ftp.ListDirectory);
using (FtpWebResponse response = (FtpWebResponse)request.GetResponse())
{
StreamReader reader = new StreamReader(response.GetResponseStream(), System.Text.Encoding.Default);//中文文件名
string line = reader.ReadLine();
while (line != null)
{
result.Add(line);
line = reader.ReadLine();
}
}
return result;
}
#endregion

#region 从FTP服务器上获取文件和文件夹列表
/// string url = Host.TrimEnd('/') + RemotePath;
FtpWebRequest request = CreateRequest(url, WebRequestMethods.Ftp.ListDirectoryDetails);
using (FtpWebResponse response = (FtpWebResponse)request.GetResponse())
{
StreamReader reader = new StreamReader(response.GetResponseStream(), System.Text.Encoding.Default);//中文文件名
string line = reader.ReadLine();
while (line != null)
{
result.Add(line);
line = reader.ReadLine();
}
}
return result;
}
#endregion

#region 从FTP服务器上删除文件
/// tring fileName)
{
bool result = false;
//建立连接
string url = Host.TrimEnd('/') + RemotePath + fileName;
FtpWebRequest request = CreateRequest(url, WebRequestMethods.Ftp.DeleteFile);
using (FtpWebResponse response = (FtpWebResponse)request.GetResponse())
{
result = true;
}

return result;
}
#endregion

#region 在FTP服务器上创建目录
/// >
/// 返回一个值,指示是否创建成功
public bool MakeDirectory(string dirName)
{
bool result = false;
//建立连接
string url = Host.TrimEnd('/') + RemotePath + dirName;
FtpWebRequest request = CreateRequest(url, WebRequestMethods.Ftp.MakeDirectory);
using (FtpWebResponse response = (FtpWebResponse)request.GetResponse())
{
result = true;
}
return result;
}
#endregion

#region 从FTP服务器上删除目录
/// 删除文件夹
/// h + dirName;
FtpWebRequest request = CreateRequest(url, WebRequestMethods.Ftp.RemoveDirectory);
using (FtpWebResponse response = (FtpWebResponse)request.GetResponse())
{
result = true;
}
return result;
}
#endregion

#region 从FTP服务器上获取文件大小
/// 建立连接
string url = Host.TrimEnd('/') + RemotePath + fileName;
FtpWebRequest request = CreateRequest(url, WebRequestMethods.Ftp.GetFileSize);
using (FtpWebResponse response = (FtpWebResponse)request.GetResponse())
{
result = responseContentLength;
}

return result;
}
#endregion

#region 给FTP服务器上的文件追加内容
/// 器上的文件
/// 返回一个值,指示是否追加成功
public bool Append(FileInfo localFile, string remoteFileName)
{
if (localFile.Exists)
{
using (FileStream fs = new FileStream(localFile.FullName, FileMode.Open))
{
return Append(fs, remoteFileName);
}
}
throw new Exception(string.Format("本地文件不存在,文件路径:{0}", localFile.FullName));
}

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