Discussion :

[aljessy]

Bonjour j'ai envie de télécharger un fichier qui se trouve dans un repertoire du disque, l'enregistrer dans un autre repertoire et enfin afficher cet image qui est en principe une image dans un JLabel que j'ai crée dans mon code. Pour celà j'ai utiliser un JFileChooser mais je n'y arrive. J'aimerais savoir:
1. Comment utiliser un JFileChooser pour télécharger un fichier et si ce n'est pas possible qu'elle fonction on peut utiliser
2. Comment enregistrer ce fichier dans un repertoire quelconque
3. Comment choisir l'extention des fichiers que je peux télécharger
4. Comment l'afficher dans mon JLabel

[Jimmy_]

Bonjour,

La FAQ est là pour toi : http://java.developpez.com/faq/gui/?page=jfilechooser

[aljessy]

Merci sauf que lorsque je le fais j'aimerais que lorsque je clique sur enregistrer que le fichier que j'ai choisi soit upload vers un repertoire quelconque et c'est la que je bloque. comment m'y prendre

[tchize_]

que le fichier que j'ai choisi soit upload vers un repertoire quelconque

Ben faut déjà voir ce que le serveur en question vers lequel tu veux uploader te fournis comme service à ce sujet

[aljessy]

j'aimerais pouvoir upload les fichiers dans un répertoire fixe de mon disque que je vais crée s'il n'existe pas

comment pouvoir acceder à des fichiers d'un répertoire physique du disque?

[tchize_]

Les classe File, FileInputStream et FileOutputStream te permettent ensemble de faire tout ça. Mais ta question n'est pas claire. tu veux faire de l'upload (c'est à dire le transférer vers une autre machine) ou juste de la copie en local?

[aljessy]

Bonjour depuis ma dernière visite j'ai pas mal progresser sur ce sujet maintenant il est question de download un fichier sur mon serveur ftp. J'arrive à faire la communication entre mon application et mon serveur mais pour download ca ne donne pas. pour exemple, j'essaie de download un fichier qui s'appelle Cecprom.jpg vers mon seveur ftp sauf que ce dernier me renvoie une erreur.
Voici le code que j'utilise pour faire mon download. j'appelle cette classe dans l'actionlistener ou je veus l'utiliser

Code :

Sélectionner tout - Visualiser dans une fenêtre à part

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package ftp;
 
 
import com.enterprisedt.net.ftp.FileTransferClient;
import com.enterprisedt.util.debug.Level;
import com.enterprisedt.util.debug.Logger;
import java.io.File;
 
public class Upload {
 
    public Upload(String[] args) {
 
        if (args.length < 3) {
            System.out
                    .println("Usage: run remote-host username password");
            System.exit(1);
        }
 
        // extract command-line arguments
        String host = args[0];
        String username = args[1];
        String password = args[2];
        String filename = "C:\\Users\\DEVELOPPEUR1\\Pictures\\Cecprom.jpg";
 
        // set up logger so that we get some output
        Logger log = Logger.getLogger(Upload.class);
        Logger.setLevel(Level.INFO);
 
        FileTransferClient ftp = null;
 
        try {
            // create client
            log.info("Creating FTP client");
            ftp = new FileTransferClient();
 
            // set remote host
            ftp.setRemoteHost(host);
            ftp.setUserName(username);
            ftp.setPassword(password);
 
            // connect to the server
            log.info("Connecting to server " + host);
            ftp.connect();
            log.info("Connected and logged in to server " + host);
 
            log.info("Downloading file");
            ftp.downloadFile(filename + ".copy", filename);
            log.info("File downloaded");
 
            // Shut down client
            log.info("Quitting client");
            ftp.disconnect();
 
            log.info("Example complete");
 
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

et voici l'erreur qu'il me retourne

Code :

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INFO [ftp.Upload] 2 sept. 2011 11:22:19.818 : Creating FTP client
INFO [ftp.Upload] 2 sept. 2011 11:22:19.908 : Connecting to server 127.0.0.1
INFO [ftp.Upload] 2 sept. 2011 11:22:19.918 : Connected and logged in to server 127.0.0.1
INFO [ftp.Upload] 2 sept. 2011 11:22:19.928 : Downloading file
INFO [FTPControlSocket] 2 sept. 2011 11:22:19.928 : Expected reply codes = [125,150]
ERROR [FTPClient] 2 sept. 2011 11:22:19.928 : Caught and rethrowing exception in initGet() : File not found
com.enterprisedt.net.ftp.FTPException: 550 File not found
	at com.enterprisedt.net.ftp.FTPControlSocket.validateReply(FTPControlSocket.java:1223)
	at com.enterprisedt.net.ftp.FTPClient.initGet(FTPClient.java:3109)
	at com.enterprisedt.net.ftp.FTPClient.getData(FTPClient.java:3156)
	at com.enterprisedt.net.ftp.FTPClient.getFile(FTPClient.java:2970)
	at com.enterprisedt.net.ftp.FTPClient.get(FTPClient.java:2356)
	at com.enterprisedt.net.ftp.FileTransferClient.downloadFile(FileTransferClient.java:703)
	at com.enterprisedt.net.ftp.FileTransferClient.downloadFile(FileTransferClient.java:683)
	at ftp.Upload.<init>(Upload.java:62)
	at vue.Photo_cl$1.actionPerformed(Photo_cl.java:98)
	at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1995)
	at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2318)
	at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:387)
	at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:242)
	at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:236)
	at java.awt.Component.processMouseEvent(Component.java:6263)
	at javax.swing.JComponent.processMouseEvent(JComponent.java:3255)
	at java.awt.Component.processEvent(Component.java:6028)
	at java.awt.Container.processEvent(Container.java:2041)
	at java.awt.Component.dispatchEventImpl(Component.java:4630)
	at java.awt.Container.dispatchEventImpl(Container.java:2099)
	at java.awt.Component.dispatchEvent(Component.java:4460)
	at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4574)
	at java.awt.LightweightDispatcher.processMouseEvent(Container.java:4238)
	at java.awt.LightweightDispatcher.dispatchEvent(Container.java:4168)
	at java.awt.Container.dispatchEventImpl(Container.java:2085)
	at java.awt.Window.dispatchEventImpl(Window.java:2475)
	at java.awt.Component.dispatchEvent(Component.java:4460)
	at java.awt.EventQueue.dispatchEvent(EventQueue.java:599)
	at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:269)
	at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:184)
	at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:178)
	at java.awt.Dialog$1.run(Dialog.java:1045)
	at java.awt.Dialog$3.run(Dialog.java:1097)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.awt.Dialog.show(Dialog.java:1095)
	at java.awt.Component.show(Component.java:1563)
	at java.awt.Component.setVisible(Component.java:1515)
	at java.awt.Window.setVisible(Window.java:841)
	at java.awt.Dialog.setVisible(Dialog.java:985)
	at vue.Onglet_Client$1.actionPerformed(Onglet_Client.java:51)
	at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1995)
	at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2318)
	at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:387)
	at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:242)
	at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:236)
	at java.awt.Component.processMouseEvent(Component.java:6263)
	at javax.swing.JComponent.processMouseEvent(JComponent.java:3255)
	at java.awt.Component.processEvent(Component.java:6028)
	at java.awt.Container.processEvent(Container.java:2041)
	at java.awt.Component.dispatchEventImpl(Component.java:4630)
	at java.awt.Container.dispatchEventImpl(Container.java:2099)
	at java.awt.Component.dispatchEvent(Component.java:4460)
	at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4574)
	at java.awt.LightweightDispatcher.processMouseEvent(Container.java:4238)
	at java.awt.LightweightDispatcher.dispatchEvent(Container.java:4168)
	at java.awt.Container.dispatchEventImpl(Container.java:2085)
	at java.awt.Window.dispatchEventImpl(Window.java:2475)
	at java.awt.Component.dispatchEvent(Component.java:4460)
	at java.awt.EventQueue.dispatchEvent(EventQueue.java:599)
	at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:269)
	at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:184)
	at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:174)
	at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:169)
	at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:161)
	at java.awt.EventDispatchThread.run(EventDispatchThread.java:122)
 
 
	com.enterprisedt.net.ftp.FTPException: 550 File not found
	at com.enterprisedt.net.ftp.FTPControlSocket.validateReply(FTPControlSocket.java:1223)
	at com.enterprisedt.net.ftp.FTPClient.initGet(FTPClient.java:3109)
	at com.enterprisedt.net.ftp.FTPClient.getData(FTPClient.java:3156)
	at com.enterprisedt.net.ftp.FTPClient.getFile(FTPClient.java:2970)
	at com.enterprisedt.net.ftp.FTPClient.get(FTPClient.java:2356)
	at com.enterprisedt.net.ftp.FileTransferClient.downloadFile(FileTransferClient.java:703)
	at com.enterprisedt.net.ftp.FileTransferClient.downloadFile(FileTransferClient.java:683)
	at ftp.Upload.<init>(Upload.java:62)
	at vue.Photo_cl$1.actionPerformed(Photo_cl.java:98)
	at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1995)
	at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2318)
	at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:387)
	at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:242)
	at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:236)
	at java.awt.Component.processMouseEvent(Component.java:6263)
	at javax.swing.JComponent.processMouseEvent(JComponent.java:3255)
	at java.awt.Component.processEvent(Component.java:6028)
	at java.awt.Container.processEvent(Container.java:2041)
	at java.awt.Component.dispatchEventImpl(Component.java:4630)
	at java.awt.Container.dispatchEventImpl(Container.java:2099)
	at java.awt.Component.dispatchEvent(Component.java:4460)
	at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4574)
	at java.awt.LightweightDispatcher.processMouseEvent(Container.java:4238)
	at java.awt.LightweightDispatcher.dispatchEvent(Container.java:4168)
	at java.awt.Container.dispatchEventImpl(Container.java:2085)
	at java.awt.Window.dispatchEventImpl(Window.java:2475)
	at java.awt.Component.dispatchEvent(Component.java:4460)
	at java.awt.EventQueue.dispatchEvent(EventQueue.java:599)
	at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:269)
	at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:184)
	at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:178)
	at java.awt.Dialog$1.run(Dialog.java:1045)
	at java.awt.Dialog$3.run(Dialog.java:1097)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.awt.Dialog.show(Dialog.java:1095)
	at java.awt.Component.show(Component.java:1563)
	at java.awt.Component.setVisible(Component.java:1515)
	at java.awt.Window.setVisible(Window.java:841)
	at java.awt.Dialog.setVisible(Dialog.java:985)
	at vue.Onglet_Client$1.actionPerformed(Onglet_Client.java:51)
	at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1995)
	at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2318)
	at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:387)
	at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:242)
	at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:236)
	at java.awt.Component.processMouseEvent(Component.java:6263)
	at javax.swing.JComponent.processMouseEvent(JComponent.java:3255)
	at java.awt.Component.processEvent(Component.java:6028)
	at java.awt.Container.processEvent(Container.java:2041)
	at java.awt.Component.dispatchEventImpl(Component.java:4630)
	at java.awt.Container.dispatchEventImpl(Container.java:2099)
	at java.awt.Component.dispatchEvent(Component.java:4460)
	at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4574)
	at java.awt.LightweightDispatcher.processMouseEvent(Container.java:4238)
	at java.awt.LightweightDispatcher.dispatchEvent(Container.java:4168)
	at java.awt.Container.dispatchEventImpl(Container.java:2085)
	at java.awt.Window.dispatchEventImpl(Window.java:2475)
	at java.awt.Component.dispatchEvent(Component.java:4460)
	at java.awt.EventQueue.dispatchEvent(EventQueue.java:599)
	at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:269)
	at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:184)
	com.enterprisedt.net.ftp.FTPException: 550 File not found
	at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:174)
	at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:169)
	at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:161)
	at java.awt.EventDispatchThread.run(EventDispatchThread.java:122)
	at com.enterprisedt.net.ftp.FTPControlSocket.validateReply(FTPControlSocket.java:1223)
	at com.enterprisedt.net.ftp.FTPClient.initGet(FTPClient.java:3109)
	at com.enterprisedt.net.ftp.FTPClient.getData(FTPClient.java:3156)
	at com.enterprisedt.net.ftp.FTPClient.getFile(FTPClient.java:2970)
	at com.enterprisedt.net.ftp.FTPClient.get(FTPClient.java:2356)
	at com.enterprisedt.net.ftp.FileTransferClient.downloadFile(FileTransferClient.java:703)
	at com.enterprisedt.net.ftp.FileTransferClient.downloadFile(FileTransferClient.java:683)
	at ftp.Upload.<init>(Upload.java:62)
	at vue.Photo_cl$1.actionPerformed(Photo_cl.java:98)
	at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1995)
	at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2318)
	at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:387)
	at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:242)
	at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:236)
	at java.awt.Component.processMouseEvent(Component.java:6263)
	at javax.swing.JComponent.processMouseEvent(JComponent.java:3255)
	at java.awt.Component.processEvent(Component.java:6028)
	at java.awt.Container.processEvent(Container.java:2041)
	at java.awt.Component.dispatchEventImpl(Component.java:4630)
	at java.awt.Container.dispatchEventImpl(Container.java:2099)
	at java.awt.Component.dispatchEvent(Component.java:4460)
	at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4574)
	at java.awt.LightweightDispatcher.processMouseEvent(Container.java:4238)
	at java.awt.LightweightDispatcher.dispatchEvent(Container.java:4168)
	at java.awt.Container.dispatchEventImpl(Container.java:2085)
	at java.awt.Window.dispatchEventImpl(Window.java:2475)
	at java.awt.Component.dispatchEvent(Component.java:4460)
	at java.awt.EventQueue.dispatchEvent(EventQueue.java:599)
	at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:269)
	at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:184)
	at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:178)
	at java.awt.Dialog$1.run(Dialog.java:1045)
	at java.awt.Dialog$3.run(Dialog.java:1097)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.awt.Dialog.show(Dialog.java:1095)
	at java.awt.Component.show(Component.java:1563)
	at java.awt.Component.setVisible(Component.java:1515)
	at java.awt.Window.setVisible(Window.java:841)
	at java.awt.Dialog.setVisible(Dialog.java:985)
	at vue.Onglet_Client$1.actionPerformed(Onglet_Client.java:51)
	at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1995)
	at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2318)
	at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:387)
	at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:242)
	at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:236)
	at java.awt.Component.processMouseEvent(Component.java:6263)
	at javax.swing.JComponent.processMouseEvent(JComponent.java:3255)
	at java.awt.Component.processEvent(Component.java:6028)
	at java.awt.Container.processEvent(Container.java:2041)
	at java.awt.Component.dispatchEventImpl(Component.java:4630)
	at java.awt.Container.dispatchEventImpl(Container.java:2099)
	at java.awt.Component.dispatchEvent(Component.java:4460)
	at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4574)
	at java.awt.LightweightDispatcher.processMouseEvent(Container.java:4238)
	at java.awt.LightweightDispatcher.dispatchEvent(Container.java:4168)
	at java.awt.Container.dispatchEventImpl(Container.java:2085)
	at java.awt.Window.dispatchEventImpl(Window.java:2475)
	at java.awt.Component.dispatchEvent(Component.java:4460)
	at java.awt.EventQueue.dispatchEvent(EventQueue.java:599)
	at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:269)
	at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:184)
	at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:174)
	at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:169)
	at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:161)
	at java.awt.EventDispatchThread.run(EventDispatchThread.java:122)

A quel niveau je peche?

[tchize_]

la command downloadfile attends le nom d'un fichier dans le répertoire courant. si tu veux écrire dans
C:\\Users\\DEVELOPPEUR1\\Pictures\\Cecprom.jpg sur le serveur, il va d'abord falloir aller dans ce dossier via les commandes de changement de répertoire.

[aljessy]

je veus download C:\\Users\\DEVELOPPEUR1\\Pictures\\Cecprom.jpg vers un repertoire que j'ai défini dans mon serveur ftp. C'est le process la que je n'arrive pas à monter

[aljessy]

Que je suis idiot j'avais juste confondu le sens du transfert c'était un upload et non un download. Merci pour votre aide