Java upload, download files via FTP, traverse file directory

Java Upload through FTP, download files, traverse file directory   Collection stars ~   published in  5 years ago   reading  7703  favorites  9  Point praise  2  Reviews & Nbsp;0

Import Java.io.DataInputStream;
Import Java.io.File;
Import Java.io.FileInputStream;
Import Java.io.FileOutputStream;
Import java.io.IOException;
Import java.util.ArrayList;

Import java.util.List;

Import Org.apache.catalina.tribes.util.Logs;
Import Sun.net.TelnetInputStream;
Import Sun.net.TelnetOutputStream;

Import sun.net.ftp.FtpClient;
	public class Downfileforftp {ftpclient ftpclient;
	Private String Server = "IP";
	private int port = 21;
	Private String UserName = "USN";

	Private String UserPassword = "pwd"; 
			/** * Link to Server * * @return/public Boolean open () {if (ftpclient!= null && ftpclient.serverisopen ())
		return true;
			try {ftpclient = new ftpclient ();
			Ftpclient.openserver (server, port);
			Ftpclient.login (UserName, UserPassword);
			Ftpclient.binary ();
		return true;
			catch (Exception e) {e.printstacktrace ();
			FtpClient = null;
		return false;
		} public boolean CD (String dir) {Boolean f = false; try {ftpclient.cd (DIR);
			catch (IOException e) {//logs.error (e.tostring ());
		return F;
	return true;            /** * Upload files to FTP server * * @param localpathandfilename * Local file directory and filename * @param ftpfilename * Uploaded filename * @param ftpdirectory * FTP directory such as:/path1/pathb2/, if directory does not exist back automatically create directory * @throws Exception/Public Boolean upload (String localdirectoryandfilename, String ftpfilename, String ftpdirectory) throws Exception {if (!ope
		N ()) return false;
		FileInputStream is = null;
		Telnetoutputstream OS = null;
			try {char ch = ';
			if (ftpdirectory.length () > 0) ch = ftpdirectory.charat (Ftpdirectory.length ()-1); for (; ch = =/' | | | ch = = ftpdirectory. CharAt (Ftpdirectory.length ()-1)) Ftpdirectory = Ftpdirectory

			. substring (0, Ftpdirectory.length ()-1);
			int slashindex = Ftpdirectory.indexof (47);
			int backslashindex = Ftpdirectory.indexof (92);
			int index = Slashindex;
			String dirall = ftpdirectory;if (Backslashindex!=-1 && (index = = 1 | | index > BACKSLASHINDEX)) index = Backslashindex;
			String directory = "";
					while (index!=-1) {if (Index > 0) {String dir = dirall.substring (0, index);
					Directory = Directory + "/" + dir;
					Ftpclient.sendserver ("XMKD" + directory + "\ r \ n");
				Ftpclient.readserverresponse ();
				} Dirall = dirall.substring (index + 1);
				Slashindex = Dirall.indexof (47);
				Backslashindex = Dirall.indexof (92);
				index = Slashindex;
			if (Backslashindex!=-1 && (index = = 1 | | index > BACKSLASHINDEX)) index = Backslashindex;
			} ftpclient.sendserver ("XMKD" + ftpdirectory + "\ r \ n");

			Ftpclient.readserverresponse ();
			OS = ftpclient.put (ftpdirectory + "/" + ftpfilename);
			File file_in = new file (localdirectoryandfilename);
			is = new FileInputStream (file_in);
			byte bytes[] = new byte[1024];
			int i;
			while ((i = Is.read (bytes))!=-1) os.write (bytes, 0, i); Clean up the rubbish

			return true;
			catch (Exception e) {e.printstacktrace ();
		return false;
			Finally {if (is!= null) is.close ();
		if (OS!= null) os.close (); }/** * Downloading files from the FTP server and returning the download file length * * @param ftpdirectoryandfilename * @param localdirectoryandfilename * @ret Urn * @throws Exception/public long Download (string ftpdirectoryandfilename, String localdirectoryandfilename)
		Throws Exception {long result = 0;
		if (!open ()) return result;
		Telnetinputstream is = null;
		FileOutputStream OS = null;
			try {is = Ftpclient.get (ftpdirectoryandfilename);
			Java.io.File outfile = new Java.io.File (localdirectoryandfilename);
			OS = new FileOutputStream (outfile);
			byte[] bytes = new byte[1024];
			int C;
				while ((c = is.read (bytes))!=-1) {os.write (bytes, 0, c);
			result = result + C;
		The catch (Exception e) {throw e;
			Finally {if (is!= null) is.close ();

		if (OS!= null) os.close ();
	return result; }

	/** * Returns the list of files in the FTP directory * * @param ftpdirectory * @return/Public list<string> getfilenamelist (String F
		Tpdirectory) {list<string> List = new arraylist<string> ();
		if (!open ()) return list;
			try {datainputstream dis = new DataInputStream (ftpclient.namelist (ftpdirectory));
			String filename = "";
				while (filename = Dis.readline ())!= null) {list.add (filename);
			SYSTEM.OUT.PRINTLN (filename);
		} catch (Exception e) {e.printstacktrace ();
	} return list; /** * Delete File on FTP * * @param ftpdirandfilename/public boolean deletefile (String ftpdirandfilename) {if (
		!open ()) return false;
		Ftpclient.sendserver ("DELE" + ftpdirandfilename + "\ r \ n");
	return true; /** * Delete FTP directory * * @param ftpdirectory * * Public boolean deletedirectory (String ftpdirectory) {if (!open ()
		) return false;
		Ftpclient.sendserver ("Xrmd" + ftpdirectory + "\ r \ n");
	return true; /** * Close Link * * Public voID close () {try {if (ftpclient!= null && ftpclient.serverisopen ()) ftpclient.closeserver (); catch (Exception e) {}} public static void Main (String []args) throws exception{downfileforftp df = new Down
		Fileforftp ();
		Df.getfilenamelist ("E:\\uploadfiles\\cat"); Df.download ("E:\\uploadfiles\\cat\\2012-03-29.11.00.00.012.xml", "f:\\temp\\ftpdown\\2012-03-29.11.00.00.012.")

	XML "); }
	
}