jakarta commons-net ftp的例子

import java.io.IOException;
import java.net.SocketException;
import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.util.Date;

import org.apache.commons.net.ftp.*;
/**
 * @author Daniel Summer([e-mail])
 *
 * To change the template for this generated type comment go to
 * Window>Preferences>Java>Code Generation>Code and Comments
 */
public class Test {
 private static FTPClient ftp_ = new FTPClient();
 ;
 public static void main(String[] args) {
  try {
   ftp_.connect("ftp.ujs.edu.cn");
   System.out.println("Connecting...");
   ftp_.login("anonymous", "");
   System.out.println("Connetcted");
  } catch (SocketException e) {
   // TODO Auto-generated catch block
   e.printStackTrace();
  } catch (IOException e) {
   // TODO Auto-generated catch block
   e.printStackTrace();
  }

  try {
   FTPFile[] files = null;
   FTPListParseEngine engine;
   ftp_.changeWorkingDirectory("/");
   files = ftp_.listFiles();
   System.out.println("Directory is " + ftp_.printWorkingDirectory());

   System.out.println(files[0].getName());
   System.out.println(files[0].isDirectory());
   System.out.println(files[0].getRawListing());
   System.out.println("***********************");
   ftp_.changeWorkingDirectory("/pub");
   files = ftp_.listFiles();
   System.out.println("Directory is " + ftp_.printWorkingDirectory());

   System.out.println(files[1].getName());
   System.out.println(files[1].isDirectory());
   System.out.println(files[1].getSize());
   System.out.println(files[1].getTimestamp().getTime());
   
   DateFormat dateFormat =
    new SimpleDateFormat("yyyy-MM-dd hh:mm");
   System.out.println(dateFormat.format(files[1].getTimestamp().getTime()));
   int idx = files[1].getRawListing().indexOf(" ");
   System.out.println(files[1].getRawListing().substring(0,idx--));
  } catch (IOException e1) {
   // TODO Auto-generated catch block
   e1.printStackTrace();
  }

 }
}