when run the project shows two error 1.error: incompatible types: sample.controller.Details cannot be converted to sample.dao.Details stDao.save(ei); 2.error: incompatible types: sample.controller.Details cannot be converted to sample.dao.Details stDao.update(st);
i give the two class files below
this is studentController.java file
package sample.controller;
import java.util.List;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.ResponseBody;
import sample.dao.studentDao;
@Controller
public class studentController {
@Autowired
studentDao stDao;
@RequestMapping(value ="index.htm", method = RequestMethod.GET)
public String index()
{
System.out.println("at index");
return "index";
}
@RequestMapping(value ="insert.htm", method = RequestMethod.POST)
public @ResponseBody String insert
(
@RequestParam("id") Integer id,
@RequestParam("name") String name,
@RequestParam("email") String email,
@RequestParam("fee") String fee,
@RequestParam("sname") String sname,
@RequestParam("contactno") String contactno
)
{
Details ei;
ei = new Details();
ei.setName(name);
ei.setEmail(email);
ei.setFee(fee);
ei.setSname(sname);
ei.setContactno(contactno);
stDao.save(ei);
Gson ob = new Gson();
return "success";
}
@RequestMapping(value="fetch.htm", method = RequestMethod.GET)
public @ResponseBody String display()
{
List<Details> listdetails = (List<Details>) stDao.display();
return new Gson().toJson(listdetails);
}
@RequestMapping(value = "delete.htm")
public @ResponseBody String delete(@RequestParam("id") Integer id)
{
stDao.delete(id);
return "successful";
}
@RequestMapping(value = "edit.htm")
public @ResponseBody String edit(@RequestParam("id") Integer id)
{
List editlist;
editlist = stDao.getDetailsForEdit(id);
return new Gson().toJson(editlist);
}
@RequestMapping(value = "update.htm", method = RequestMethod.POST)
public @ResponseBody String update
(
@RequestParam(value="id",required=false) Integer id,
@RequestParam("name") String name,
@RequestParam("email") String email,
@RequestParam("fee") String fee,
@RequestParam("sname") String sname,
@RequestParam("contactno") String contactno
)
{
Details st = new Details();
st.setName(name);
st.setEmail(email);
st.setFee(fee);
st.setSname(sname);
st.setContactno(contactno);
System.out.println("st");
stDao.update(st);
Gson ob = new Gson();
return "success";
}
}
this studentDao.java file
package sample.dao;
import java.util.List;
import org.hibernate.Criteria;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.Transaction;
import org.hibernate.criterion.Projections;
import org.hibernate.criterion.Restrictions;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Repository;
import org.springframework.transaction.annotation.Transactional;
@Transactional
@Repository
public class studentDao {
@Autowired
private SessionFactory sessionFactory;
public void save(Details stdinfo) {
Session session = sessionFactory.openSession();
session.save(stdinfo);
session.close();
}
public List display() {
Session session = sessionFactory.openSession();
Criteria criteria = session.createCriteria(Details.class);
criteria.setProjection(Projections.projectionList().add(Projections.property("id"), "id")
.add(Projections.property("name"), "name")
.add(Projections.property("email"), "email")
.add(Projections.property("fee"), "fee")
.add(Projections.property("sname"), "sname")
.add(Projections.property("contactno"), "contactno"));
criteria.setResultTransformer(Criteria.ALIAS_TO_ENTITY_MAP);
List list = criteria.list();
session.close();
return list;
}
public void delete(Integer id){
Session session = sessionFactory.openSession();
Transaction trx = session.beginTransaction();
Details stdtl = new Details(id);
session.delete(stdtl);
trx.commit();
session.close();
}
public List getDetailsForEdit(Integer id) {
Session session = sessionFactory.openSession();
Criteria criteria = session.createCriteria(Details.class);
criteria.setProjection(Projections.projectionList()
.add(Projections.property("id"), "id")
.add(Projections.property("name"), "name")
.add(Projections.property("email"), "email")
.add(Projections.property("fee"), "fee")
.add(Projections.property("sname"), "sname")
.add(Projections.property("contactno"), "contactno")
);
criteria.add(Restrictions.eq("id", id));
criteria.setResultTransformer(Criteria.ALIAS_TO_ENTITY_MAP);
List list = criteria.list();
session.close();
return list;
}
public void update(Details Stdinfo){
Session session = sessionFactory.openSession();
Transaction trx = session.beginTransaction();
session.update(Stdinfo);
trx.commit();
session.close();
}
}