dataInfo.setSize(file.getSize());
dataInfo.setOwnerName(employee.getEmployeeName());
dataInfo.setOwnerId(employee.getEmployeeId());
dataInfo.setUplodedDate(new Date());
service.insertData(dataInfo);
FacesMessage msg = new FacesMessage("Succesful", file.getFileName() + " is uploaded.");
FacesContext.getCurrentInstance().addMessage(null, msg);
return "successfully uploaded";