hibernate之session使用

Posted 2022-10-30 helenandyoyo

session工具类——获取session：

package com.imooc.ssh.Util;

import org.hibernate.Session;
import org.hibernate.SessionFactory;

import javax.annotation.Resource;

public class BaseSessionFactoryImpl 

    @Resource
    private SessionFactory sessionFactory = null;

    public Session getSession()
        return sessionFactory.getCurrentSession();
    

session使用：

@Repository
public class PersonDao extends BaseSessionFactoryImpl 

//    @Resource
//    private SessionFactory sessionFactory;

    public List<Person> getPerson()

        CriteriaQuery<Person> criteriaQuery = getSession().getCriteriaBuilder().createQuery(Person.class);
        criteriaQuery.from(Person.class);
        return (List<Person>) this.getSession().createQuery(criteriaQuery).getResultList();

    

    public Person getPersonById(String id)
        return (Person) this.getSession().createQuery("from Person where id = ?0").setParameter(0, id).uniqueResult();
    
    public void addPerson(Person person)
        this.getSession().save(person);
    

    public void updatePerson(Person person)
        this.getSession().update(person);
    

    public void deletePersonById(String id)
        this.getSession().createQuery("delete Person where id = ?0 ").setParameter(0,id).executeUpdate();