loginsessionbean.java

在线考试 考生登陆 查分 管理员管理后台等的 的的的的达到的达到的的的

/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */

package demo;

import javax.ejb.Stateless;
import com.eonline.model.*;
import java.util.Collection;
import java.util.List;
import javax.annotation.PostConstruct;

import javax.persistence.Query;
import javax.persistence.EntityManager;
import javax.persistence.PersistenceContext;
import javax.xml.registry.infomodel.User;
/**
 *
 * @author Administrator
 */
@Stateless
public class LoginSessionBean implements LoginSessionRemote {
    @PersistenceContext
    private EntityManager entityManager;
    private String username = null;
    private String password = null;
    

    public LoginSessionBean(){
        
    }
    
   /*public User createUserEntry(String username , String password){
       Euser user = new Euser(username , password) ;
       entityManager.
   }*/
    
    public void LoginSessionBean(String username , String password) {
        this.username = username;
        this.password = password;
        
    }

    public boolean getUserTF() {
        
        Query query = entityManager.createNamedQuery("GET_USER_ITEMS");
        query.setParameter(1, username);
        query.setParameter(2, password);
        Collection rs = query.getResultList();
         while(rs!=null) {
                return true;
            }
        return false;
        //return dao.getUser(username , password);
    }

    public Euser getUserInfo() {
        Query query = entityManager.createNamedQuery("GET_USER_ITEMS");
        query.setParameter(1, username);
        query.setParameter(2, password);
        
        return (Euser)query.getSingleResult();
    }

    public Euser addUser(String username, String password ) {
        Euser item = new Euser(username , password);
        item.setPassword(password);
        item.setUsername(username);
        //dao.addUser(username, item);
        return item;
    }

    public void init() {
        throw new UnsupportedOperationException("Not supported yet.");
    }
    // Add business logic below. (Right-click in editor and choose
    // "EJB Methods > Add Business Method" or "Web Service > Add Operation")
 
}