import java.io.File;    import java.io.FileInputStream;    import java.io.FileNotFoundException;    import java.io.FileOutputStream;    import java.io.IOException;    import java.io.InputStream;    import java.io.OutputStream;    import org.apache.commons.net.ftp.FTP;    import org.apache.commons.net.ftp.FTPClient;   import org.apache.commons.net.ftp.FTPFile;    import org.apache.commons.net.ftp.FTPReply;     public class JFtpApche    {        privatestatic FTPClient ftpClient = new FTPClient();         privatestatic String encoding = System.getProperty("file.encoding");         publicstatic boolean uploadFile(String url, int port, String username,String password, String path, String filename, InputStream input)       {          boolean result = false;           try           {               int reply;               // 如果采用默认端口，可以使用ftp.connect(url)的方式直接连接FTP服务器              ftpClient.connect(url);               // ftp.connect(url, port);// 连接FTP服务器               // 登录               ftpClient.login(username, password);               ftpClient.setControlEncoding(encoding);               // 检验是否连接成功               reply = ftpClient.getReplyCode();               if (!FTPReply.isPositiveCompletion(reply))               {                   System.out.println("连接失败");                   ftpClient.disconnect();                   return result;               }               // 转移工作目录至指定目录下               boolean change = ftpClient.changeWorkingDirectory(path);              ftpClient.setFileType(FTP.BINARY_FILE_TYPE);              if (change)               {                   result = ftpClient.storeFile(newString(filename.getBytes(encoding), "iso-8859-1"), input);                  if (result)                   {                       System.out.println("上传成功!");                   }               }               input.close();               ftpClient.logout();           } catch (IOException e)           {               e.printStackTrace();           } finally           {               if (ftpClient.isConnected())               {                   try                   {                       ftpClient.disconnect();                   } catch (IOException ioe)                   {                   }               }           }           return result;        }         public voidtestUpLoadFromDisk()        {          try           {               FileInputStream in = new FileInputStream(newFile("./data/se/1-2015-02-03-14.list"));               //boolean flag = uploadFile("127.0.0.1", 21, "zlb", "123", "/","哈哈.txt", in);               boolean flag = uploadFile("10.10.2.55", 21, "anonymous", "", "/","1-2015-02-03-14.list", in);               System.out.println(flag);           } catch (FileNotFoundException e)           {               e.printStackTrace();           }        }         publicstatic boolean downFile(String url, int port, String username,String password, String remotePath, String fileName, StringlocalPath)        {          boolean result = false;           try           {               int reply;               ftpClient.setControlEncoding(encoding);                 // FTPClientConfig conf = new               // FTPClientConfig(FTPClientConfig.SYST_NT);              // conf.setServerLanguageCode("zh");               ftpClient.connect(url, port);               // 如果采用默认端口，可以使用ftp.connect(url)的方式直接连接FTP服务器              ftpClient.login(username, password);// 登录               // 设置文件传输类型为二进制               ftpClient.setFileType(FTPClient.BINARY_FILE_TYPE);              // 获取ftp登录应答代码               reply = ftpClient.getReplyCode();               // 验证是否登陆成功               if (!FTPReply.isPositiveCompletion(reply))               {                   ftpClient.disconnect();                   System.err.println("FTP server refused connection.");                  return result;               }               // 转移到FTP服务器目录至指定的目录下               ftpClient.changeWorkingDirectory(newString(remotePath.getBytes(encoding), "iso-8859-1"));              // 获取文件列表               FTPFile[] fs = ftpClient.listFiles();               for (FTPFile ff : fs)               {                   if (ff.getName().equals(fileName))                   {                       File localFile = new File(localPath + "/" + ff.getName());                      OutputStream is = new FileOutputStream(localFile);                      ftpClient.retrieveFile(ff.getName(), is);                       is.close();                   }               }               ftpClient.logout();               result = true;           } catch (IOException e)           {               e.printStackTrace();           } finally           {               if (ftpClient.isConnected())               {                   try                   {                       ftpClient.disconnect();                   } catch (IOException ioe)                   {                   }               }           }           return result;        }         public voidtestDownFile()        {          try           {               boolean flag = downFile("127.0.0.1", 21, "zlb", "123", "/","contact.txt", "D:/");               System.out.println(flag);           } catch (Exception e)           {               e.printStackTrace();           }        }         publicstatic void main(String[] args)        {          JFtpApche fa = new JFtpApche();           //fa.testDownFile();           fa.testUpLoadFromDisk();      }     }