@RequestMapping(value = "/delete-category/{categoryId}", method = RequestMethod.GET) public String deleteCategory(@PathVariable String categoryId, Model model) { try { categoryService.deleteCategory(Integer.parseInt(HtmlUtils.htmlEscape(categoryId))); model.addAttribute( "info", "<div class=\"info\">Succesfully Deleted <p> <a href='../manage-category.html'>Go back to Management Page</a></div>"); } catch (EJBTransactionRolledbackException e) { model.addAttribute( "info", "<div class=\"info\">Category Doesn't Existed <p> <a href='../manage-category.html'>Go back to Management Page</a></div>"); } return "manage-category"; }