GWT Télécharger par Manuel Carrasco Moñino Problème

Question

J'utilise ce système de téléchargement de GWT ici (http://code.google.com/p/gwtupload/). J'ai des problèmes avec ça.

1. Afficher pour nourrir avec un chemin du client
2. Obtenez le chemin sur le serveur où le fichier a été enregistré
3. définir un chemin sur le serveur où le fichier doit être enregistré

Ce servlet pour gérer le fichier télécharger

public class SampleUploadServlet extends UploadAction { 

    private static final long serialVersionUID = 1L; 

    Hashtable<String, String> receivedContentTypes = new Hashtable<String, String>(); 
    /** 
    * Maintain a list with received files and their content types. 
    */ 
    Hashtable<String, File> receivedFiles = new Hashtable<String, File>(); 

    /** 
    * Override executeAction to save the received files in a custom place 
    * and delete this items from session. 
    */ 
    @Override 
    public String executeAction(HttpServletRequest request, List<FileItem> sessionFiles) throws UploadActionException { 
    String response = ""; 
    int cont = 0; 
    for (FileItem item : sessionFiles) { 
     if (false == item.isFormField()) { 
     cont ++; 
     try { 
      /// Create a new file based on the remote file name in the client 
      // String saveName = item.getName().replaceAll("[\\\\/><\\|\\s\"'{}()\\[\\]]+", "_"); 
      // File file =new File("/tmp/" + saveName); 

      /// Create a temporary file placed in /tmp (only works in unix) 
      // File file = File.createTempFile("upload-", ".bin", new File("/tmp")); 

      /// Create a temporary file placed in the default system temp folder 
      File file = File.createTempFile("upload-", ".bin"); 
      item.write(file); 

      /// Save a list with the received files 
      receivedFiles.put(item.getFieldName(), file); 
      receivedContentTypes.put(item.getFieldName(), item.getContentType()); 

      /// Compose a xml message with the full file information which can be parsed in client side 
      response += "<file-" + cont + "-field>" + item.getFieldName() + "</file-" + cont + "-field>\n"; 
      response += "<file-" + cont + "-name>" + item.getName() + "</file-" + cont + "-name>\n"; 
      response += "<file-" + cont + "-size>" + item.getSize() + "</file-" + cont + "-size>\n"; 
      response += "<file-" + cont + "-type>" + item.getContentType()+ "</file-" + cont + "type>\n"; 
     } catch (Exception e) { 
      throw new UploadActionException(e); 
     } 
     } 
    } 

    /// Remove files from session because we have a copy of them 
    removeSessionFileItems(request); 

    /// Send information of the received files to the client. 
    return "<response>\n" + response + "</response>\n"; 
    } 

    /** 
    * Get the content of an uploaded file. 
    */ 
    @Override 
    public void getUploadedFile(HttpServletRequest request, HttpServletResponse response) throws IOException { 
    String fieldName = request.getParameter(PARAM_SHOW); 
    File f = receivedFiles.get(fieldName); 
    if (f != null) { 
     response.setContentType(receivedContentTypes.get(fieldName)); 
     FileInputStream is = new FileInputStream(f); 
     copyFromInputStreamToOutputStream(is, response.getOutputStream()); 
    } else { 
     renderXmlResponse(request, response, ERROR_ITEM_NOT_FOUND); 
    } 
    } 

    /** 
    * Remove a file when the user sends a delete request. 
    */ 
    @Override 
    public void removeItem(HttpServletRequest request, String fieldName) throws UploadActionException { 
    File file = receivedFiles.get(fieldName); 
    receivedFiles.remove(fieldName); 
    receivedContentTypes.remove(fieldName); 
    if (file != null) { 
     file.delete(); 
    } 
    } 
} 

Merci

Answer 1

Essayez avec ceci:

public String executeAction(HttpServletRequest request, List<FileItem> sessionFiles) throws UploadActionException { 
for (FileItem item : sessionFiles) { 
    if (false == item.isFormField()) { 
     String uploadedFileName = ""; 
     try { 
      String uploadsDir = "/uploads"; 
      File dirFile = new File(uploadsDir); 
       dirFile.mkdirs(); 

       String filename = FilenameUtils.getName(item.getName()); // uploaded file filename 

      File file = new File(uploadsDir, filename); 
      item.write(file); 

      uploadedFileName = uploadsDir + "/" + filename; 
     } catch (Exception e) { 
      logger.error("ERROR UPLOADING FILE: " + uploadedFileName + ", Exception: " + e); 
      throw new UploadActionException(e.getMessage()); 
     } 
    } 
removeSessionFileItems(request); 

} return null; }

Bonne programmation!

Cordialement.