CODEWITHSUNDEEP
javaservletsftp
sourav78611
sourav78611

Reputation: 99

how to access or show the list of file available on ftp server in java

I want to show list of file which is available on ftp server i am working with some demo ftp server but it is not working it is showing some error , I have to get list of all file available on ftp server here is code 

  public class getFTPfileList {
    public static void main(String[] args) {
    FTPClient client = new FTPClient();
    try {
        client.connect("ftp.javacodegeeks.com");
        client.login("username", "password");
        FTPFile[] files = client.listFiles();
        for (FTPFile ftpFile : files) {
            if (ftpFile.getType() == FTPFile.FILE_TYPE) {
                System.out.println("File: "
                        + ftpFile.getName()
                        + "size-> "
                        + FileUtils.byteCountToDisplaySize(ftpFile
                                .getSize()));
            }

        }

        client.logout();

    } catch (IOException e) {

        e.printStackTrace();

    } finally {

        try {

            client.disconnect();

        } catch (IOException e) {

            e.printStackTrace();

        }

    }

}

}

The error message showing:

java.net.UnknownHostException: ftp.javacodegeeks.com
at java.net.Inet6AddressImpl.lookupAllHostAddr(Native Method)
at java.net.InetAddress$1.lookupAllHostAddr(Unknown Source)
at java.net.InetAddress.getAddressesFromNameService(Unknown Source)
at java.net.InetAddress.getAllByName0(Unknown Source)
at java.net.InetAddress.getAllByName(Unknown Source)
at java.net.InetAddress.getAllByName(Unknown Source)
at java.net.InetAddress.getByName(Unknown Source)
at org.apache.commons.net.SocketClient.connect(SocketClient.java:184)
at org.apache.commons.net.SocketClient.connect(SocketClient.java:273)
at com.journaldev.servlet.getFTPfileList.main(getFTPfileList.java:21)

Upvotes: 0

Views: 505

Answers (1)

earthmover
earthmover

Reputation: 4525

It seems that your FTP host is either not reachable or the host-name is incorrect and not resolved as a host-name.

See here : SocketClient#connect(String hostname)

Note : try it using IP-address of host server and ping it to check whether it is open or not.

Upvotes: 1

Related Questions