Re: Error while downloading zip file using commons-net 1.4.1

[Rory Winston]

Try setting the file type explicitly to binary.

Rory

s n wrote:

Hi All,

I am trying to use the commons-net (1.4.1) package to download zip files from 
and FTP site.Everything seems to be working fine (Able to login and download 
the file), except when i try to open the downloaded zip file.

I am not sure why this happens. Any help would be highly appreciated.

I have pasted the error and my code below:

Thanks!



I get the following error (winzip spits out this error)
######################################################################
ERROR:
Extracting to "C:\DOCUME~1\sn\LOCALS~1\Temp\"
Use Path: no   Overlay Files: yes
warning [C:/MeV/APPLERA_ABI1700.zip]:  extra 14052 bytes at beginning or within 
Zip file (attempting to process anyway)
Error in file #1:  bad Zip file offset (Error local header signature not 
found):  0
(attempting to re-compensate)
Extracting APPLERA_ABI1700
(incomplete d-tree)  Error:  invalid compressed data to inflate
#######################################################################

+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
CODE;
public class TestFTP {

    /**
     * @param args
     */
    public static void main(String[] args) throws Exception{

try {

            String folder="/pub/bio/tgi/data/Resourcerer/";
            FTPClient ftp = new FTPClient();

            FTPClientConfig conf = new FTPClientConfig(FTPClientConfig.SYST_NT);
            ftp.configure(conf);

            ftp.connect(InetAddress.getByName("occams.dfci.harvard.edu"));

            System.out.print("Server response:"+ftp.getReplyString());
            int reply = ftp.getReplyCode();

            if(!FTPReply.isPositiveCompletion(reply)) {
                System.err.println("FTP server refused connection.");
                ftp.disconnect();
                System.exit(1);

            }

            if(!ftp.login("username", "password")) {
                System.err.println();
            }

            
ftp.changeWorkingDirectory("/ftp/pub/bio/tgi/data/Resourcerer/Human/");

            // List the zip files in the directory
            String[]names=ftp.listNames("*.zip");

            File f=new File("C:/MeV/"+names[0]);
            FileOutputStream temp=new FileOutputStream(f);
            ftp.retrieveFile(f.getName(), temp);
            System.out.println("size of downloaded file is:"+f.length());
            temp.close();

            ftp.logout();
        }catch(Exception e) {

e.printStackTrace(); }

        // TODO Auto-generated method stub

    }

}
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++





      
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