CRUD JDBC template problem with edit operation - spring-mvc

Question

I have problem with CRUD edit operation. When i click Edit which is written in this way in jsp file
Edit
i got error
HTTP Status 404 – Not Found
Type Status Report
Message /Firstaidkit/editMedicines
Description The origin server did not find a current representation for the target resource or is not willing to disclose that one exists.
EditController
#WebServlet(value = "/editMedicines")
public class MedicinesEditController extends HttpServlet {
private static final long serialVersionUID = 1L;
#RequestMapping(method = RequestMethod.GET)
public ModelAndView editMedicines(HttpServletRequest request) {
int medicinesId = Integer.parseInt(request.getParameter("id"));
Medicines medicines = GenericDAO.get(medicinesId);
ModelAndView model = new ModelAndView("editform");
model.addObject("medicines", medicines);
return model;
}
}
GenericDAO
public interface GenericDAO <T, PK extends Serializable> {
//CRUD
T create(T newObject);
T read(PK primaryKey);
public void update(Medicines medicines);
public void delete(T id);
List<T> getAll();
public static Medicines get(int medicinesId) {
return null;
}
}
MedicinesDAOImpl
private final static String UPDATE_MEDICINES =
"UPDATE medicines SET name=:name, drugform=:drugform, quantity=:quantity, expiration_date=:expiration_date, description=:description WHERE id_medicines=:id_medicines;";
#Override
public void update(Medicines medicines) {
jdbcTemplate.update(UPDATE_MEDICINES, medicines.getName(), medicines.getDrugForm(),
medicines.getQuantity(), medicines.getExpirationDate(), medicines.getId());
}
}
editform.jsp
<form class="form-signin" method="post" action="editMedicines">

Answer 1

I believe the problem is that the URL your anchor is linked to does not exist. You should have an annotation dictating the path on your MedicinesEditController at a class level. Assuming you want the path of this endpoint to be /Firstaidkit/editMedicines, the following should work:
#Path(value = "/Firstaidkit") // possibly a different but similar annotation
public class MedicinesEditController extends HttpServlet {
#RequestMapping(value = "/editMedicines", method = RequestMethod.GET)
public ModelAndView editMedicines(HttpServletRequest request) {
int medicinesId = Integer.parseInt(request.getParameter("id"));
Medicines medicines = GenericDAO.get(medicinesId);
ModelAndView model = new ModelAndView("editform");
model.addObject("medicines", medicines);
return model;
}
}
Otherwise, you need to alter the link of the anchor to reference the root of the application, followed by your endpoint of /editMedicines. This can be accomplished by using the following anchor, as described here:
Edit
Edit: Try the following
MedicinesEditController
#RequestMapping(value = "/editMedicines")
public class MedicinesEditController extends HttpServlet {
private static final long serialVersionUID = 1L;
#GetMapping
public ModelAndView editMedicines(HttpServletRequest request) {
int medicinesId = Integer.parseInt(request.getParameter("id"));
Medicines medicines = GenericDAO.get(medicinesId);
ModelAndView model = new ModelAndView("editform");
model.addObject("medicines", medicines);
return model;
}
}
editform.jsp
<form class="form-signin" method="GET" action="editMedicines">
anchor
(note: try these variations, as the link changes depending on where you are when you click it. View this stack to help determine the correct link)
Edit
Edit
Edit