primefaces FileUploadEvent returns null

Question

I\'m trying to upload a file with primefaces fileuploader but it returns null,

addPhotos.xhtml :

Answer 1

Here, it is for your reference.

upload.xhtml

PrimefacesFileUpload.java

@ManagedBean(name = "PrimefacesFileUpload")
public class PrimefacesFileUpload {
    private UploadedFile uploadedFile;

    public void setUploadedFile(UploadedFile uploadedFile) {
        this.uploadedFile = uploadedFile;
    }

    public UploadedFile getUploadedFile() {
        return uploadedFile;
    }

    public void upload(ActionEvent event) {        
        String fileName = uploadedFile.getFileName();
        byte[] content = uploadedFile.getContents();
        String contentType = uploadedFile.getContentType();
        // Keep upload file 
        FacesContext.getCurrentInstance().addMessage("messages", new FacesMessage("Successful! " + uploadedFile.getFileName() + " is uploaded."));
    }   
}

web.xml - Make sure to config

  PrimeFaces FileUpload Filter
  org.primefaces.webapp.filter.FileUploadFilter
  
      thresholdSize
      51200
  


  PrimeFaces FileUpload Filter
  Faces Servlet