How to upload a file using af:inputFile in Oracle ADF

Question

Can anyone please tell me how to upload file to server using af:inputFile in Oracel ADF. I searched about this and found we can use the following

<af:form usesUpload="true">
  <af:inputFile columns="10" 
                valueChangeListener="#{backing.fileUploaded}"/>
</af:form>

using the above code I can set a method that executes when some choose some file in the form. So now I need to know in fileUploaded method what should be the java code to upload the given file to the server.

Please help me. How I can achieve this.

Thanks in advance.

Answer 1

As you have already created value change listener in managed bean then use this code -

/**Method to Upload File ,called on ValueChangeEvent of inputFile
 * @param vce
 */

public void uploadFileVCE(ValueChangeEvent vce) {
    if (vce.getNewValue() != null) {
        //Get File Object from VC Event
        UploadedFile fileVal = (UploadedFile) vce.getNewValue();
    }
}

and this is the method to upload file on server (You have to provide absolute path)

/**Method to upload file to actual path on Server*/
private String uploadFile(UploadedFile file) {

    UploadedFile myfile = file;
    String path = null;
    if (myfile == null) {

    } else {
        // All uploaded files will be stored in below path
        path = "D://FileStore//" + myfile.getFilename();
        InputStream inputStream = null;
        try {
            FileOutputStream out = new FileOutputStream(path);
            inputStream = myfile.getInputStream();
            byte[] buffer = new byte[8192];
            int bytesRead = 0;
            while ((bytesRead = inputStream.read(buffer, 0, 8192)) != -1) {
                out.write(buffer, 0, bytesRead);
            }
            out.flush();
            out.close();
        } catch (Exception ex) {
            // handle exception
            ex.printStackTrace();
        } finally {
            try {
                inputStream.close();
            } catch (IOException e) {
            }
        }

    }
    //Returns the path where file is stored
    return path;
}

Check this thread on OTN Forum https://community.oracle.com/message/13135474#13135474

Here you can read full implementation and download sample application to test http://www.awasthiashish.com/2014/08/uploading-and-downloading-files-from.html

Full disclosure on the last link above and its contents: I wrote it and it is my TLD.