JSF Upload File Failing - jsf

Question

I've done this part of the form
<td>
<h:form enctype="multipart/form-data">
<p:fileUpload fileUploadListener="#{uploadBean.handleFileUpload(event)}"
mode="advanced"
update="messages"
multiple="true"
sizeLimit="2000000"
allowTypes="/(\.|\/)(pdf|doc?x|xls?x)$/"/>
<p:growl id="messages" showDetail="true"/>
</h:form>
</td>
and this event handler in class:
public class UploadBean {
/** Creates a new instance of UploadBean */
public UploadBean() {
}
private static final int BUFFER_SIZE = 6124;
public void handleFileUpload(FileUploadEvent event) {
ExternalContext extContext = FacesContext.getCurrentInstance().
getExternalContext();
File result = new File(extContext.getRealPath
("//WEB-INF//upload") + "//" + event.getFile().getFileName());
try {
FileOutputStream fileOutputStream = new FileOutputStream(result);
byte[] buffer = new byte[BUFFER_SIZE];
int bulk;
InputStream inputStream = event.getFile().getInputstream();
while (true) {
bulk = inputStream.read(buffer);
if (bulk < 0) {
break;
}
fileOutputStream.write(buffer, 0, bulk);
fileOutputStream.flush();
}
fileOutputStream.close();
inputStream.close();
FacesMessage msg = new FacesMessage("Succesful",
event.getFile().getFileName() + " is uploaded.");
FacesContext.getCurrentInstance().addMessage(null, msg);
} catch (IOException e) {
FacesMessage error = new FacesMessage("The files were not uploaded!");
FacesContext.getCurrentInstance().addMessage(null, error);
}
}
}
Now the handling method I got it from a site. I am not sure why this is failing to upload. it looks okay to me. Maybe am missing something? so the control appears on my page and I can choose file, but then upload progress bar just proceeds fast...no growl notification shows and also no file uploaded of course.
Thanks,

Answer 1

From the docs (Assuming using Primefaces)
First thing to do is to configure the fileupload filter which parses the multipart request. FileUpload filter should map to Faces Servlet.
<filter>
<filter-name>PrimeFaces FileUpload Filter</filter-name>
<filter-class>org.primefaces.webapp.filter.FileUploadFilter</filter-class>
</filter>
<filter-mapping>
<filter-name>PrimeFaces FileUpload Filter</filter-name>
<servlet-name>Faces Servlet</servlet-name>
</filter-mapping>
Hope you are not missing this setting.
Also not sure whats event in your code
<p:fileUpload fileUploadListener="#{uploadBean.handleFileUpload(event)}" .....