Hello,
I am trying to use
org.apache.commons.net.ftp.FTPClient to connect to one FTP server and fetching the files!
But it is always giving following exception:
Exception in thread "main" java.lang.NoClassDefFoundError: org/apache/oro/text/regex/MalformedPatternException at org.apache.commons.net.ftp.parser.DefaultFTPFileEntryParserFactory.createNTFTPEntryParser(DefaultFTPFileEntryParserFactory.java:184)
at FTPTest.main(FTPTest.java:45)
Can some body help me there, who have alrwedy faced such problem?
Following is the code that I have been trying!
import org.apache.commons.net.*;
import org.apache.commons.net.ftp.*;
import org.apache.commons.net.ftp.parser.*;
public class FTPTest
{
/**
* @param args
*/
public static void main(String[] args) throws Exception
{
boolean isConnectionAlive = true;
FTPClient ftpClient = new FTPClient();
try
{
ftpClient.connect("mygenuineurl");
System.out.println("Connected to ftp.stacks.com.");
System.out.print(ftpClient.getReplyString());
ftpClient.login("myuser", "mypassword");
int replyCode = ftpClient.getReplyCode();
System.out.print(replyCode);
System.out.print(ftpClient.getSystemName());
if(!FTPReply.isPositiveCompletion(replyCode)) {
ftpClient.disconnect();
System.err.println("FTP server refused connection.");
System.exit(0);
}
while(true)
{
if(!isConnectionAlive)
{
break;
}
FTPFileEntryParser parser = new DefaultFTPFileEntryParserFactory().createNTFTPEntryParser();
FTPListParseEngine engine =
ftpClient.initiateListParsing("MLB",parser.getClass().getName());
// have tried following too with expectation that it should take default
// implementation and should work. Still does not work.
/*FTPListParseEngine engine =
ftpClient.initiateListParsing();*/
// forget it. Any ways code never reaches till this point.
while (engine.hasNext()) {
FTPFile[] files = engine.getNext(1);
}
// This is what I tried first with expectation
// that it would have been worked with out any problem.
// but alas !! always giving same exception.
//FTPFile[] files = ftpClient.listFiles();
//System.out.println("Number of Files Read : "+ files.length);
/*for(FTPFile file : files)
{
System.out.println(file.getName());
System.out.println(file.getLink());
System.out.println(file.getRawListing());
System.out.println(file.getTimestamp());
}*/
try
{
Thread.sleep(30000L);
} catch (Exception ignored){}
}
ftpClient.logout();
} catch (Exception e)
{
e.printStackTrace();
} finally
{
if(ftpClient.isConnected())
{
ftpClient.disconnect();
}
}
}
}
