Showing posts with label uploadfile. Show all posts
Showing posts with label uploadfile. Show all posts

Tuesday, July 1, 2014

How to Upload file in ADF Application

Upload file functionality is implemented using af:inputFile component which provides user with a dialog to select the input file.

File selected can be accessed using vcl of the inputfile which provides the
org.apache.myfaces.trinidad.model.UploadedFile object of the selected file:

using the file object, user can get the attributes like fileName, InputStream etc as:

        UploadedFile file = (UploadedFile) event.getNewValue();
        if (file != null)
        {
          fileName=file.getFilename();
          try {
                inputstream=file.getInputStream();
          } catch (IOException e) {
                e.printStackTrace();
          }

     

User would use this inputstream to upload the file in any given location as(can be written as button action):
        OutputStream outputStream = null;
        try{
            outputStream = new FileOutputStream(new File("C:\\JDeveloper\\mywork\\uploadedFiles\\"+fileName));     //hard coded for now
            int read = 0;
            byte[] bytes = new byte[1024];
            while ((read = inputstream.read(bytes)) != -1) {
                    outputStream.write(bytes, 0, read);
            }
            System.out.println("Done!");
        }catch(Exception e){
            e.printStackTrace();
        }


Attached code can be downloaded from here