FTP类代码,CSharp代码库,德仔网

代码语言
代码分类
【CSharp】 FTP类
作者:CSDN / 发布于2012/1/11/ 521
<div><span style="color: rgb(0,0,255)">public</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(0,0,255)">class</span><span style="color: rgb(0,0,0)"> FtpFile
 {
 </span><span style="color: rgb(0,0,255)">string</span><span style="color: rgb(0,0,0)"> ftpServerIP;

 </span><span style="color: rgb(0,0,255)">public</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(0,0,255)">string</span><span style="color: rgb(0,0,0)"> FtpServerIP
 {
 </span><span style="color: rgb(0,0,255)">get</span><span style="color: rgb(0,0,0)"> { </span><span style="color: rgb(0,0,255)">return</span><span style="color: rgb(0,0,0)"> ftpServerIP; }
 </span><span style="color: rgb(0,0,255)">set</span><span style="color: rgb(0,0,0)"> { ftpServerIP </span><span style="color: rgb(0,0,0)">=</span><span style="color: rgb(0,0,0)"> value; }
 }
 </span><span style="color: rgb(0,0,255)">string</span><span style="color: rgb(0,0,0)"> ftpUserID;

 </span><span style="color: rgb(0,0,255)">public</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(0,0,255)">string</span><span style="color: rgb(0,0,0)"> FtpUserID
 {
 </span><span style="color: rgb(0,0,255)">get</span><span style="color: rgb(0,0,0)"> { </span><span style="color: rgb(0,0,255)">return</span><span style="color: rgb(0,0,0)"> ftpUserID; }
 </span><span style="color: rgb(0,0,255)">set</span><span style="color: rgb(0,0,0)"> { ftpUserID </span><span style="color: rgb(0,0,0)">=</span><span style="color: rgb(0,0,0)"> value; }
 }
 </span><span style="color: rgb(0,0,255)">string</span><span style="color: rgb(0,0,0)"> ftpPassword;

 </span><span style="color: rgb(0,0,255)">public</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(0,0,255)">string</span><span style="color: rgb(0,0,0)"> FtpPassword
 {
 </span><span style="color: rgb(0,0,255)">get</span><span style="color: rgb(0,0,0)"> { </span><span style="color: rgb(0,0,255)">return</span><span style="color: rgb(0,0,0)"> ftpPassword; }
 </span><span style="color: rgb(0,0,255)">set</span><span style="color: rgb(0,0,0)"> { ftpPassword </span><span style="color: rgb(0,0,0)">=</span><span style="color: rgb(0,0,0)"> value; }
 }
 FtpWebRequest reqFTP;
 </span><span style="color: rgb(0,0,255)">public</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(0,0,255)">static</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(0,0,255)">string</span><span style="color: rgb(0,0,0)"> FtpServer </span><span style="color: rgb(0,0,0)">=</span><span style="color: rgb(0,0,0)"> System.Configuration.ConfigurationSettings.AppSettings[</span><span style="color: rgb(128,0,0)">"</span><span style="color: rgb(128,0,0)">FtpServer</span><span style="color: rgb(128,0,0)">"</span><span style="color: rgb(0,0,0)">];
 </span><span style="color: rgb(0,0,255)">public</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(0,0,255)">static</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(0,0,255)">string</span><span style="color: rgb(0,0,0)"> FtpUser </span><span style="color: rgb(0,0,0)">=</span><span style="color: rgb(0,0,0)"> System.Configuration.ConfigurationSettings.AppSettings[</span><span style="color: rgb(128,0,0)">"</span><span style="color: rgb(128,0,0)">FtpUser</span><span style="color: rgb(128,0,0)">"</span><span style="color: rgb(0,0,0)">];
 </span><span style="color: rgb(0,0,255)">public</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(0,0,255)">static</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(0,0,255)">string</span><span style="color: rgb(0,0,0)"> FtpPwd </span><span style="color: rgb(0,0,0)">=</span><span style="color: rgb(0,0,0)"> System.Configuration.ConfigurationSettings.AppSettings[</span><span style="color: rgb(128,0,0)">"</span><span style="color: rgb(128,0,0)">FtpPwd</span><span style="color: rgb(128,0,0)">"</span><span style="color: rgb(0,0,0)">];
 </span><span style="color: rgb(0,0,255)">private</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(0,0,255)">void</span><span style="color: rgb(0,0,0)"> Connect(String path)</span><span style="color: rgb(0,128,0)">//</span><span style="color: rgb(0,128,0)">连接ftp</span><span style="color: rgb(0,128,0)">
</span><span style="color: rgb(0,0,0)"> {
 </span><span style="color: rgb(0,128,0)">//</span><span style="color: rgb(0,128,0)"> 根据uri创建FtpWebRequest对象</span><span style="color: rgb(0,128,0)">
</span><span style="color: rgb(0,0,0)"> reqFTP </span><span style="color: rgb(0,0,0)">=</span><span style="color: rgb(0,0,0)"> (FtpWebRequest)FtpWebRequest.Create(</span><span style="color: rgb(0,0,255)">new</span><span style="color: rgb(0,0,0)"> Uri(path));
 </span><span style="color: rgb(0,128,0)">//</span><span style="color: rgb(0,128,0)"> 指定数据传输类型</span><span style="color: rgb(0,128,0)">
</span><span style="color: rgb(0,0,0)"> reqFTP.UseBinary </span><span style="color: rgb(0,0,0)">=</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(0,0,255)">true</span><span style="color: rgb(0,0,0)">;
 </span><span style="color: rgb(0,128,0)">//</span><span style="color: rgb(0,128,0)"> ftp用户名和密码</span><span style="color: rgb(0,128,0)">
</span><span style="color: rgb(0,0,0)"> reqFTP.Credentials </span><span style="color: rgb(0,0,0)">=</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(0,0,255)">new</span><span style="color: rgb(0,0,0)"> NetworkCredential(ftpUserID, ftpPassword);
 }
 </span><span style="color: rgb(0,0,255)">public</span><span style="color: rgb(0,0,0)"> FtpFile(</span><span style="color: rgb(0,0,255)">string</span><span style="color: rgb(0,0,0)"> ftpServerIP, </span><span style="color: rgb(0,0,255)">string</span><span style="color: rgb(0,0,0)"> ftpUserID, </span><span style="color: rgb(0,0,255)">string</span><span style="color: rgb(0,0,0)"> ftpPassword)
 {
 </span><span style="color: rgb(0,0,255)">this</span><span style="color: rgb(0,0,0)">.ftpServerIP </span><span style="color: rgb(0,0,0)">=</span><span style="color: rgb(0,0,0)"> ftpServerIP;
 </span><span style="color: rgb(0,0,255)">this</span><span style="color: rgb(0,0,0)">.ftpUserID </span><span style="color: rgb(0,0,0)">=</span><span style="color: rgb(0,0,0)"> ftpUserID;
 </span><span style="color: rgb(0,0,255)">this</span><span style="color: rgb(0,0,0)">.ftpPassword </span><span style="color: rgb(0,0,0)">=</span><span style="color: rgb(0,0,0)"> ftpPassword;
 }
 </span><span style="color: rgb(0,0,255)">public</span><span style="color: rgb(0,0,0)"> FtpFile()
 {
 </span><span style="color: rgb(0,0,255)">this</span><span style="color: rgb(0,0,0)">.ftpServerIP </span><span style="color: rgb(0,0,0)">=</span><span style="color: rgb(0,0,0)"> FtpServer;
 </span><span style="color: rgb(0,0,255)">this</span><span style="color: rgb(0,0,0)">.ftpUserID </span><span style="color: rgb(0,0,0)">=</span><span style="color: rgb(0,0,0)"> FtpUser;
 </span><span style="color: rgb(0,0,255)">this</span><span style="color: rgb(0,0,0)">.ftpPassword </span><span style="color: rgb(0,0,0)">=</span><span style="color: rgb(0,0,0)"> FtpPwd;
 }
 </span><span style="color: rgb(0,128,0)">//</span><span style="color: rgb(0,128,0)">都调用这个</span><span style="color: rgb(0,128,0)">
</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(0,0,255)">private</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(0,0,255)">string</span><span style="color: rgb(0,0,0)">[] GetFileList(</span><span style="color: rgb(0,0,255)">string</span><span style="color: rgb(0,0,0)"> path, </span><span style="color: rgb(0,0,255)">string</span><span style="color: rgb(0,0,0)"> WRMethods)</span><span style="color: rgb(0,128,0)">//</span><span style="color: rgb(0,128,0)">上面的代码示例了如何从ftp服务器上获得文件列表</span><span style="color: rgb(0,128,0)">
</span><span style="color: rgb(0,0,0)"> {
 </span><span style="color: rgb(0,0,255)">string</span><span style="color: rgb(0,0,0)">[] downloadFiles;
 StringBuilder result </span><span style="color: rgb(0,0,0)">=</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(0,0,255)">new</span><span style="color: rgb(0,0,0)"> StringBuilder();
 </span><span style="color: rgb(0,0,255)">try</span><span style="color: rgb(0,0,0)">
 {
 Connect(path);
 reqFTP.Method </span><span style="color: rgb(0,0,0)">=</span><span style="color: rgb(0,0,0)"> WRMethods;
 WebResponse response </span><span style="color: rgb(0,0,0)">=</span><span style="color: rgb(0,0,0)"> reqFTP.GetResponse();
 StreamReader reader </span><span style="color: rgb(0,0,0)">=</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(0,0,255)">new</span><span style="color: rgb(0,0,0)"> StreamReader(response.GetResponseStream(), System.Text.Encoding.UTF8);</span><span style="color: rgb(0,128,0)">//</span><span style="color: rgb(0,128,0)">中文文件名</span><span style="color: rgb(0,128,0)">
</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(0,0,255)">string</span><span style="color: rgb(0,0,0)"> line </span><span style="color: rgb(0,0,0)">=</span><span style="color: rgb(0,0,0)"> reader.ReadLine();
 </span><span style="color: rgb(0,0,255)">while</span><span style="color: rgb(0,0,0)"> (line </span><span style="color: rgb(0,0,0)">!=</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(0,0,255)">null</span><span style="color: rgb(0,0,0)">)
 {
 result.Append(line);
 result.Append(</span><span style="color: rgb(128,0,0)">"</span><span style="color: rgb(128,0,0)">\n</span><span style="color: rgb(128,0,0)">"</span><span style="color: rgb(0,0,0)">);
 line </span><span style="color: rgb(0,0,0)">=</span><span style="color: rgb(0,0,0)"> reader.ReadLine();
 }
 </span><span style="color: rgb(0,128,0)">//</span><span style="color: rgb(0,128,0)"> to remove the trailing '\n'</span><span style="color: rgb(0,128,0)">
</span><span style="color: rgb(0,0,0)"> result.Remove(result.ToString().LastIndexOf(</span><span style="color: rgb(128,0,0)">'</span><span style="color: rgb(128,0,0)">\n</span><span style="color: rgb(128,0,0)">'</span><span style="color: rgb(0,0,0)">), </span><span style="color: rgb(128,0,128)">1</span><span style="color: rgb(0,0,0)">);
 reader.Close();
 response.Close();
 </span><span style="color: rgb(0,0,255)">return</span><span style="color: rgb(0,0,0)"> result.ToString().Split(</span><span style="color: rgb(128,0,0)">'</span><span style="color: rgb(128,0,0)">\n</span><span style="color: rgb(128,0,0)">'</span><span style="color: rgb(0,0,0)">);
 }
 </span><span style="color: rgb(0,0,255)">catch</span><span style="color: rgb(0,0,0)"> (Exception ex)
 {
 System.Windows.Forms.MessageBox.Show(ex.Message);
 downloadFiles </span><span style="color: rgb(0,0,0)">=</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(0,0,255)">null</span><span style="color: rgb(0,0,0)">;
 </span><span style="color: rgb(0,0,255)">return</span><span style="color: rgb(0,0,0)"> downloadFiles;
 }
 }
 </span><span style="color: rgb(0,0,255)">public</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(0,0,255)">string</span><span style="color: rgb(0,0,0)">[] GetFileList(</span><span style="color: rgb(0,0,255)">string</span><span style="color: rgb(0,0,0)"> path)</span><span style="color: rgb(0,128,0)">//</span><span style="color: rgb(0,128,0)">上面的代码示例了如何从ftp服务器上获得文件列表</span><span style="color: rgb(0,128,0)">
</span><span style="color: rgb(0,0,0)"> {
 </span><span style="color: rgb(0,0,255)">return</span><span style="color: rgb(0,0,0)"> GetFileList(</span><span style="color: rgb(128,0,0)">"</span><span style="color: rgb(128,0,0)">ftp://</span><span style="color: rgb(128,0,0)">"</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(0,0,0)">+</span><span style="color: rgb(0,0,0)"> ftpServerIP </span><span style="color: rgb(0,0,0)">+</span><span style="color: rgb(0,0,0)"> path, WebRequestMethods.Ftp.ListDirectory);
 }
 </span><span style="color: rgb(0,0,255)">public</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(0,0,255)">string</span><span style="color: rgb(0,0,0)">[] GetFileList()</span><span style="color: rgb(0,128,0)">//</span><span style="color: rgb(0,128,0)">上面的代码示例了如何从ftp服务器上获得文件列表</span><span style="color: rgb(0,128,0)">
</span><span style="color: rgb(0,0,0)"> {
 </span><span style="color: rgb(0,0,255)">return</span><span style="color: rgb(0,0,0)"> GetFileList(</span><span style="color: rgb(128,0,0)">"</span><span style="color: rgb(128,0,0)">ftp://</span><span style="color: rgb(128,0,0)">"</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(0,0,0)">+</span><span style="color: rgb(0,0,0)"> ftpServerIP </span><span style="color: rgb(0,0,0)">+</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(128,0,0)">"</span><span style="color: rgb(128,0,0)">/</span><span style="color: rgb(128,0,0)">"</span><span style="color: rgb(0,0,0)">, WebRequestMethods.Ftp.ListDirectory);
 }

 </span><span style="color: rgb(0,0,255)">public</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(0,0,255)">string</span><span style="color: rgb(0,0,0)"> Upload(</span><span style="color: rgb(0,0,255)">string</span><span style="color: rgb(0,0,0)"> filedir,</span><span style="color: rgb(0,0,255)">string</span><span style="color: rgb(0,0,0)"> filename) </span><span style="color: rgb(0,128,0)">//</span><span style="color: rgb(0,128,0)">上面的代码实现了从ftp服务器上载文件的功能</span><span style="color: rgb(0,128,0)">
</span><span style="color: rgb(0,0,0)"> {
 FileInfo fileInf </span><span style="color: rgb(0,0,0)">=</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(0,0,255)">new</span><span style="color: rgb(0,0,0)"> FileInfo(filename);
 </span><span style="color: rgb(0,0,255)">string</span><span style="color: rgb(0,0,0)"> uri </span><span style="color: rgb(0,0,0)">=</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(128,0,0)">"</span><span style="color: rgb(128,0,0)">ftp://</span><span style="color: rgb(128,0,0)">"</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(0,0,0)">+</span><span style="color: rgb(0,0,0)"> ftpServerIP </span><span style="color: rgb(0,0,0)">+</span><span style="color: rgb(0,0,0)"> filedir </span><span style="color: rgb(0,0,0)">+</span><span style="color: rgb(0,0,0)"> fileInf.Name;
 
 Connect(uri);</span><span style="color: rgb(0,128,0)">//</span><span style="color: rgb(0,128,0)">连接 
 </span><span style="color: rgb(0,128,0)">//</span><span style="color: rgb(0,128,0)"> 默认为true，连接不会被关闭
 </span><span style="color: rgb(0,128,0)">//</span><span style="color: rgb(0,128,0)"> 在一个命令之后被执行</span><span style="color: rgb(0,128,0)">
</span><span style="color: rgb(0,0,0)"> reqFTP.KeepAlive </span><span style="color: rgb(0,0,0)">=</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(0,0,255)">false</span><span style="color: rgb(0,0,0)">;
 </span><span style="color: rgb(0,128,0)">//</span><span style="color: rgb(0,128,0)"> 指定执行什么命令</span><span style="color: rgb(0,128,0)">
</span><span style="color: rgb(0,0,0)"> reqFTP.Method </span><span style="color: rgb(0,0,0)">=</span><span style="color: rgb(0,0,0)"> WebRequestMethods.Ftp.UploadFile;
 </span><span style="color: rgb(0,128,0)">//</span><span style="color: rgb(0,128,0)"> 上传文件时通知服务器文件的大小</span><span style="color: rgb(0,128,0)">
</span><span style="color: rgb(0,0,0)"> reqFTP.ContentLength </span><span style="color: rgb(0,0,0)">=</span><span style="color: rgb(0,0,0)"> fileInf.Length;
 </span><span style="color: rgb(0,128,0)">//</span><span style="color: rgb(0,128,0)"> 缓冲大小设置为kb</span><span style="color: rgb(0,128,0)">
</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(0,0,255)">int</span><span style="color: rgb(0,0,0)"> buffLength </span><span style="color: rgb(0,0,0)">=</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(128,0,128)">2048</span><span style="color: rgb(0,0,0)">*</span><span style="color: rgb(128,0,128)">5</span><span style="color: rgb(0,0,0)">;
 </span><span style="color: rgb(0,0,255)">byte</span><span style="color: rgb(0,0,0)">[] buff </span><span style="color: rgb(0,0,0)">=</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(0,0,255)">new</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(0,0,255)">byte</span><span style="color: rgb(0,0,0)">[buffLength];
 </span><span style="color: rgb(0,0,255)">int</span><span style="color: rgb(0,0,0)"> contentLen;
 </span><span style="color: rgb(0,128,0)">//</span><span style="color: rgb(0,128,0)"> 打开一个文件流(System.IO.FileStream) 去读上传的文件</span><span style="color: rgb(0,128,0)">
</span><span style="color: rgb(0,0,0)"> FileStream fs </span><span style="color: rgb(0,0,0)">=</span><span style="color: rgb(0,0,0)"> fileInf.OpenRead();
 </span><span style="color: rgb(0,0,255)">try</span><span style="color: rgb(0,0,0)">
 {
 </span><span style="color: rgb(0,128,0)">//</span><span style="color: rgb(0,128,0)"> 把上传的文件写入流</span><span style="color: rgb(0,128,0)">
</span><span style="color: rgb(0,0,0)"> Stream strm </span><span style="color: rgb(0,0,0)">=</span><span style="color: rgb(0,0,0)"> reqFTP.GetRequestStream();
 </span><span style="color: rgb(0,128,0)">//</span><span style="color: rgb(0,128,0)"> 每次读文件流的kb</span><span style="color: rgb(0,128,0)">
</span><span style="color: rgb(0,0,0)"> contentLen </span><span style="color: rgb(0,0,0)">=</span><span style="color: rgb(0,0,0)"> fs.Read(buff, </span><span style="color: rgb(128,0,128)">0</span><span style="color: rgb(0,0,0)">, buffLength);
 </span><span style="color: rgb(0,128,0)">//</span><span style="color: rgb(0,128,0)"> 流内容没有结束</span><span style="color: rgb(0,128,0)">
</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(0,0,255)">while</span><span style="color: rgb(0,0,0)"> (contentLen </span><span style="color: rgb(0,0,0)">!=</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(128,0,128)">0</span><span style="color: rgb(0,0,0)">)
 {
 </span><span style="color: rgb(0,128,0)">//</span><span style="color: rgb(0,128,0)"> 把内容从file stream 写入upload stream</span><span style="color: rgb(0,128,0)">
</span><span style="color: rgb(0,0,0)"> strm.Write(buff, </span><span style="color: rgb(128,0,128)">0</span><span style="color: rgb(0,0,0)">, contentLen);
 contentLen </span><span style="color: rgb(0,0,0)">=</span><span style="color: rgb(0,0,0)"> fs.Read(buff, </span><span style="color: rgb(128,0,128)">0</span><span style="color: rgb(0,0,0)">, buffLength);
 }
 </span><span style="color: rgb(0,128,0)">//</span><span style="color: rgb(0,128,0)"> 关闭两个流</span><span style="color: rgb(0,128,0)">
</span><span style="color: rgb(0,0,0)"> strm.Close();
 fs.Close();
 </span><span style="color: rgb(0,0,255)">return</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(128,0,0)">""</span><span style="color: rgb(0,0,0)">;
 }
 </span><span style="color: rgb(0,0,255)">catch</span><span style="color: rgb(0,0,0)"> (Exception ex)
 {
 </span><span style="color: rgb(0,0,255)">return</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(128,0,0)">"</span><span style="color: rgb(128,0,0)">Upload Error</span><span style="color: rgb(128,0,0)">"</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(0,0,0)">+</span><span style="color: rgb(0,0,0)"> ex.Message;
 }
 }
 </span><span style="color: rgb(128,128,128)">///</span><span style="color: rgb(0,128,0)"> </span><span style="color: rgb(128,128,128)"><summary></span><span style="color: rgb(0,128,0)">
 </span><span style="color: rgb(128,128,128)">///</span><span style="color: rgb(0,128,0)"> 下载文件
 </span><span style="color: rgb(128,128,128)">///</span><span style="color: rgb(0,128,0)"> </span><span style="color: rgb(128,128,128)"></summary></span><span style="color: rgb(0,128,0)">
 </span><span style="color: rgb(128,128,128)">///</span><span style="color: rgb(0,128,0)"> </span><span style="color: rgb(128,128,128)"><param name="filedir"></span><span style="color: rgb(0,128,0)">文件夹地址：必须是服务器根级相对地址，比如"/ftpFiles/images"</span><span style="color: rgb(128,128,128)"></param></span><span style="color: rgb(0,128,0)">
 </span><span style="color: rgb(128,128,128)">///</span><span style="color: rgb(0,128,0)"> </span><span style="color: rgb(128,128,128)"><param name="filePath"></span><span style="color: rgb(0,128,0)">下载文件新路径，但不包含文件名，如：D:\Photo</span><span style="color: rgb(128,128,128)"></param></span><span style="color: rgb(0,128,0)">
 </span><span style="color: rgb(128,128,128)">///</span><span style="color: rgb(0,128,0)"> </span><span style="color: rgb(128,128,128)"><param name="fileName"></span><span style="color: rgb(0,128,0)">ftp文件绝对路径,如:ftp://127.0.0.1/Photo/1.bmp</span><span style="color: rgb(128,128,128)"></param></span><span style="color: rgb(0,128,0)">
 </span><span style="color: rgb(128,128,128)">///</span><span style="color: rgb(0,128,0)"> </span><span style="color: rgb(128,128,128)"><returns></returns></span><span style="color: rgb(128,128,128)">
</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(0,0,255)">public</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(0,0,255)">string</span><span style="color: rgb(0,0,0)"> Download(</span><span style="color: rgb(0,0,255)">string</span><span style="color: rgb(0,0,0)"> filedir,</span><span style="color: rgb(0,0,255)">string</span><span style="color: rgb(0,0,0)"> filePath, </span><span style="color: rgb(0,0,255)">string</span><span style="color: rgb(0,0,0)"> fileName)</span><span style="color: rgb(128,128,128)">///</span><span style="color: rgb(0,128,0)">/上面的代码实现了从ftp服务器下载文件的功能</span><span style="color: rgb(128,128,128)">
</span><span style="color: rgb(0,0,0)"> {
 </span><span style="color: rgb(0,0,255)">try</span><span style="color: rgb(0,0,0)">
 {
 String onlyFileName </span><span style="color: rgb(0,0,0)">=</span><span style="color: rgb(0,0,0)"> Path.GetFileName(fileName);
 </span><span style="color: rgb(0,0,255)">string</span><span style="color: rgb(0,0,0)"> newFileName </span><span style="color: rgb(0,0,0)">=</span><span style="color: rgb(0,0,0)"> filePath </span><span style="color: rgb(0,0,0)">+</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(128,0,0)">"</span><span style="color: rgb(128,0,0)">\\</span><span style="color: rgb(128,0,0)">"</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(0,0,0)">+</span><span style="color: rgb(0,0,0)"> onlyFileName;
 </span><span style="color: rgb(0,0,255)">if</span><span style="color: rgb(0,0,0)"> (File.Exists(newFileName))
 {
 </span><span style="color: rgb(0,0,255)">return</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(128,0,0)">"</span><span style="color: rgb(128,0,0)">本地文件</span><span style="color: rgb(128,0,0)">"</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(0,0,0)">+</span><span style="color: rgb(0,0,0)"> newFileName </span><span style="color: rgb(0,0,0)">+</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(128,0,0)">"</span><span style="color: rgb(128,0,0)">已存在,无法下载</span><span style="color: rgb(128,0,0)">"</span><span style="color: rgb(0,0,0)">;
 }
 </span><span style="color: rgb(0,0,255)">string</span><span style="color: rgb(0,0,0)"> url </span><span style="color: rgb(0,0,0)">=</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(128,0,0)">"</span><span style="color: rgb(128,0,0)">ftp://</span><span style="color: rgb(128,0,0)">"</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(0,0,0)">+</span><span style="color: rgb(0,0,0)"> ftpServerIP </span><span style="color: rgb(0,0,0)">+</span><span style="color: rgb(0,0,0)"> filedir </span><span style="color: rgb(0,0,0)">+</span><span style="color: rgb(0,0,0)"> onlyFileName;
 Connect(url);</span><span style="color: rgb(0,128,0)">//</span><span style="color: rgb(0,128,0)">连接 </span><span style="color: rgb(0,128,0)">
</span><span style="color: rgb(0,0,0)"> reqFTP.Credentials </span><span style="color: rgb(0,0,0)">=</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(0,0,255)">new</span><span style="color: rgb(0,0,0)"> NetworkCredential(ftpUserID, ftpPassword);
 FtpWebResponse response </span><span style="color: rgb(0,0,0)">=</span><span style="color: rgb(0,0,0)"> (FtpWebResponse)reqFTP.GetResponse();
 Stream ftpStream </span><span style="color: rgb(0,0,0)">=</span><span style="color: rgb(0,0,0)"> response.GetResponseStream();
 </span><span style="color: rgb(0,0,255)">long</span><span style="color: rgb(0,0,0)"> cl </span><span style="color: rgb(0,0,0)">=</span><span style="color: rgb(0,0,0)"> response.ContentLength;
 </span><span style="color: rgb(0,0,255)">int</span><span style="color: rgb(0,0,0)"> bufferSize </span><span style="color: rgb(0,0,0)">=</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(128,0,128)">2048</span><span style="color: rgb(0,0,0)">*</span><span style="color: rgb(128,0,128)">5</span><span style="color: rgb(0,0,0)">;
 </span><span style="color: rgb(0,0,255)">int</span><span style="color: rgb(0,0,0)"> readCount;
 </span><span style="color: rgb(0,0,255)">byte</span><span style="color: rgb(0,0,0)">[] buffer </span><span style="color: rgb(0,0,0)">=</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(0,0,255)">new</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(0,0,255)">byte</span><span style="color: rgb(0,0,0)">[bufferSize];

 readCount </span><span style="color: rgb(0,0,0)">=</span><span style="color: rgb(0,0,0)"> ftpStream.Read(buffer, </span><span style="color: rgb(128,0,128)">0</span><span style="color: rgb(0,0,0)">, bufferSize);
 FileStream outputStream </span><span style="color: rgb(0,0,0)">=</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(0,0,255)">new</span><span style="color: rgb(0,0,0)"> FileStream(newFileName, FileMode.Create);
 </span><span style="color: rgb(0,0,255)">while</span><span style="color: rgb(0,0,0)"> (readCount </span><span style="color: rgb(0,0,0)">></span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(128,0,128)">0</span><span style="color: rgb(0,0,0)">)
 {
 outputStream.Write(buffer, </span><span style="color: rgb(128,0,128)">0</span><span style="color: rgb(0,0,0)">, readCount);
 readCount </span><span style="color: rgb(0,0,0)">=</span><span style="color: rgb(0,0,0)"> ftpStream.Read(buffer, </span><span style="color: rgb(128,0,128)">0</span><span style="color: rgb(0,0,0)">, bufferSize);
 }
 ftpStream.Close();
 outputStream.Close();
 response.Close();

 </span><span style="color: rgb(0,0,255)">return</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(128,0,0)">""</span><span style="color: rgb(0,0,0)">;
 }
 </span><span style="color: rgb(0,0,255)">catch</span><span style="color: rgb(0,0,0)"> (Exception ex)
 {
 </span><span style="color: rgb(0,0,255)">return</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(128,0,0)">"</span><span style="color: rgb(128,0,0)">因</span><span style="color: rgb(128,0,0)">"</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(0,0,0)">+</span><span style="color: rgb(0,0,0)"> ex.Message </span><span style="color: rgb(0,0,0)">+</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(128,0,0)">"</span><span style="color: rgb(128,0,0)">,无法下载</span><span style="color: rgb(128,0,0)">"</span><span style="color: rgb(0,0,0)">;
 }
 }
 </span><span style="color: rgb(0,128,0)">//</span><span style="color: rgb(0,128,0)">删除文件</span><span style="color: rgb(0,128,0)">
</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(0,0,255)">public</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(0,0,255)">void</span><span style="color: rgb(0,0,0)"> DeleteFileName(</span><span style="color: rgb(0,0,255)">string</span><span style="color: rgb(0,0,0)"> filedir,</span><span style="color: rgb(0,0,255)">string</span><span style="color: rgb(0,0,0)"> fileName)
 {
 </span><span style="color: rgb(0,0,255)">try</span><span style="color: rgb(0,0,0)">
 {
 </span><span style="color: rgb(0,0,255)">string</span><span style="color: rgb(0,0,0)"> fName</span><span style="color: rgb(0,0,0)">=</span><span style="color: rgb(0,0,0)"> Path.GetFileName(fileName);
 </span><span style="color: rgb(0,0,255)">string</span><span style="color: rgb(0,0,0)"> uri </span><span style="color: rgb(0,0,0)">=</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(128,0,0)">"</span><span style="color: rgb(128,0,0)">ftp://</span><span style="color: rgb(128,0,0)">"</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(0,0,0)">+</span><span style="color: rgb(0,0,0)"> ftpServerIP </span><span style="color: rgb(0,0,0)">+</span><span style="color: rgb(0,0,0)"> filedir</span><span style="color: rgb(0,0,0)">+</span><span style="color: rgb(0,0,0)">fName;
 Connect(uri);</span><span style="color: rgb(0,128,0)">//</span><span style="color: rgb(0,128,0)">连接 
 </span><span style="color: rgb(0,128,0)">//</span><span style="color: rgb(0,128,0)"> 默认为true，连接不会被关闭
 </span><span style="color: rgb(0,128,0)">//</span><span style="color: rgb(0,128,0)"> 在一个命令之后被执行</span><span style="color: rgb(0,128,0)">
</span><span style="color: rgb(0,0,0)"> reqFTP.KeepAlive </span><span style="color: rgb(0,0,0)">=</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(0,0,255)">false</span><span style="color: rgb(0,0,0)">;
 </span><span style="color: rgb(0,128,0)">//</span><span style="color: rgb(0,128,0)"> 指定执行什么命令</span><span style="color: rgb(0,128,0)">
</span><span style="color: rgb(0,0,0)"> reqFTP.Method </span><span style="color: rgb(0,0,0)">=</span><span style="color: rgb(0,0,0)"> WebRequestMethods.Ftp.DeleteFile;
 FtpWebResponse response </span><span style="color: rgb(0,0,0)">=</span><span style="color: rgb(0,0,0)"> (FtpWebResponse)reqFTP.GetResponse();
 response.Close();
 }
 </span><span style="color: rgb(0,0,255)">catch</span><span style="color: rgb(0,0,0)"> (Exception ex)
 {
 MessageBox.Show(ex.Message, </span><span style="color: rgb(128,0,0)">"</span><span style="color: rgb(128,0,0)">删除错误</span><span style="color: rgb(128,0,0)">"</span><span style="color: rgb(0,0,0)">);
 }
 }
 </span><span style="color: rgb(0,128,0)">//</span><span style="color: rgb(0,128,0)">创建目录</span><span style="color: rgb(0,128,0)">
</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(0,0,255)">public</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(0,0,255)">string</span><span style="color: rgb(0,0,0)"> MakeDir(</span><span style="color: rgb(0,0,255)">string</span><span style="color: rgb(0,0,0)"> dirName)
 {
 </span><span style="color: rgb(0,0,255)">try</span><span style="color: rgb(0,0,0)">
 {
 </span><span style="color: rgb(0,0,255)">string</span><span style="color: rgb(0,0,0)"> uri </span><span style="color: rgb(0,0,0)">=</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(128,0,0)">"</span><span style="color: rgb(128,0,0)">ftp://</span><span style="color: rgb(128,0,0)">"</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(0,0,0)">+</span><span style="color: rgb(0,0,0)"> ftpServerIP </span><span style="color: rgb(0,0,0)">+</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(128,0,0)">"</span><span style="color: rgb(128,0,0)">/</span><span style="color: rgb(128,0,0)">"</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(0,0,0)">+</span><span style="color: rgb(0,0,0)"> dirName;
 Connect(uri);</span><span style="color: rgb(0,128,0)">//</span><span style="color: rgb(0,128,0)">连接 </span><span style="color: rgb(0,128,0)">
</span><span style="color: rgb(0,0,0)"> reqFTP.Method </span><span style="color: rgb(0,0,0)">=</span><span style="color: rgb(0,0,0)"> WebRequestMethods.Ftp.MakeDirectory;
 FtpWebResponse response </span><span style="color: rgb(0,0,0)">=</span><span style="color: rgb(0,0,0)"> (FtpWebResponse)reqFTP.GetResponse();
 response.Close();
 </span><span style="color: rgb(0,0,255)">return</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(128,0,0)">""</span><span style="color: rgb(0,0,0)">;
 }
 </span><span style="color: rgb(0,0,255)">catch</span><span style="color: rgb(0,0,0)"> (WebException ex)
 {
 </span><span style="color: rgb(0,0,255)">return</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(128,0,0)">"</span><span style="color: rgb(128,0,0)">[Make Dir]</span><span style="color: rgb(128,0,0)">"</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(0,0,0)">+</span><span style="color: rgb(0,0,0)"> ex.Message;
 }
 }
</span></div>
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