I am learning Spring mvc with Hibernate. I have tried a tutorial where it shows with reverse engineering and hbm.xml. But I want to use annotated domain class for it. For which I am trying some but no luck.

I have taken a web project in Netbeans with Spring and Hibernate framework. When I submit the form it work fine and redirect to other page but data is not saved. How can I resolve this? Here are my attempts below.

My project structure:

My dispatcher-servlet.xml:

My application context:

My web.xml:

    

    
        contextConfigLocation
        /WEB-INF/applicationContext.xml
    
    
        org.springframework.web.context.ContextLoaderListener
    
    
        dispatcher
        org.springframework.web.servlet.DispatcherServlet
        2
    
    
        dispatcher
        *.html
    
    
        
            30
        
    
    
        redirect.jsp
    

My hibernate.cfg.xml:

    


  
    org.hibernate.dialect.MySQLDialect
    com.mysql.jdbc.Driver
    jdbc:mysql://localhost:3306/springhibernate?zeroDateTimeBehavior=convertToNull
    root
    50
    true
    org.hibernate.hql.ast.ASTQueryTranslatorFactory
  

My User controller:

    @Controller
public class UserController {
    
   private static SessionFactory factory;
   
    @RequestMapping(value="/getForm", method = RequestMethod.GET)
    public ModelAndView getDemoForm(){        
        ModelAndView model = new ModelAndView("demoForm");        
        return model;
    }
    
    @RequestMapping(value = "/submitDemoForm.html", method = RequestMethod.POST)
    public ModelAndView submitAdmissionForm(@ModelAttribute("employee") EmployeeAnnotation employee) {
        try {
            factory = new AnnotationConfiguration().
                    configure().
                    //addPackage("com.xyz") //add package if used.
                    addAnnotatedClass(EmployeeAnnotation.class).
                    buildSessionFactory();
        } catch (Throwable ex) {
            System.err.println("Failed to create sessionFactory object." + ex);
            throw new ExceptionInInitializerError(ex);
        }
        
        Session session = factory.openSession();
        Transaction tx = null;
        Integer employeeID = null;
        try {
            tx = session.beginTransaction();
            employeeID = (Integer) session.save(employee);
            tx.commit();
        } catch (HibernateException e) {
            if (tx != null) {
                tx.rollback();
            }
            e.printStackTrace();
        } finally {
            session.close();
        }
        
        ModelAndView model = new ModelAndView("demoFormSuccess");

        return model;
    }
    
}

My EmployeeAnnotation Class (pojo):

import javax.persistence.*;

@Entity
@Table(name = "employee_annotation")
public class EmployeeAnnotation {
   @Id @GeneratedValue
   @Column(name = "id")
   private int id;

   @Column(name = "first_name")
   private String firstName;

   @Column(name = "last_name")
   private String lastName;

   @Column(name = "salary")
   private int salary;  

   public EmployeeAnnotation() {}
   public int getId() {
      return id;
   }
   public void setId( int id ) {
      this.id = id;
   }
   public String getFirstName() {
      return firstName;
   }
   public void setFirstName( String first_name ) {
      this.firstName = first_name;
   }
   public String getLastName() {
      return lastName;
   }
   public void setLastName( String last_name ) {
      this.lastName = last_name;
   }
   public int getSalary() {
      return salary;
   }
   public void setSalary( int salary ) {
      this.salary = salary;
   }
}

My demoForm.jsp:

    

    
    

      Firts Name : 
    
    

      Last Name : 
    
    

            Salary : 
    
    

My demoFormSuccess.jsp:

    
ID is :: ${employee.id}