eclipse 自动生成的hibernateDAO出现错误

Z时代
2024-01-10
分类：IT

图片描述

DAO自动生成代码

public class UserinfoHome {
    private static final Log log = LogFactory.getLog(UserinfoHome.class);
    private final SessionFactory sessionFactory = getSessionFactory();
    protected SessionFactory getSessionFactory() {
        try {
            return (SessionFactory) new InitialContext().lookup("SessionFactory");
        } catch (Exception e) {
            log.error("Could not locate SessionFactory in JNDI", e);
            throw new IllegalStateException("Could not locate SessionFactory in JNDI");
        }
    }
    public void persist(Userinfo transientInstance) {
        log.debug("persisting Userinfo instance");
        try {
            sessionFactory.getCurrentSession().persist(transientInstance);
            log.debug("persist successful");
        } catch (RuntimeException re) {
            log.error("persist failed", re);
            throw re;
        }
    }
    public void attachDirty(Userinfo instance) {
        log.debug("attaching dirty Userinfo instance");
        try {
            sessionFactory.getCurrentSession().saveOrUpdate(instance);
            log.debug("attach successful");
        } catch (RuntimeException re) {
            log.error("attach failed", re);
            throw re;
        }
    }
    public void attachClean(Userinfo instance) {
        log.debug("attaching clean Userinfo instance");
        try {
            sessionFactory.getCurrentSession().lock(instance, LockMode.NONE);
            log.debug("attach successful");
        } catch (RuntimeException re) {
            log.error("attach failed", re);
            throw re;
        }
    }
    public void delete(Userinfo persistentInstance) {
        log.debug("deleting Userinfo instance");
        try {
            sessionFactory.getCurrentSession().delete(persistentInstance);
            log.debug("delete successful");
        } catch (RuntimeException re) {
            log.error("delete failed", re);
            throw re;
        }
    }
    public Userinfo merge(Userinfo detachedInstance) {
        log.debug("merging Userinfo instance");
        try {
            Userinfo result = (Userinfo) sessionFactory.getCurrentSession().merge(detachedInstance);
            log.debug("merge successful");
            return result;
        } catch (RuntimeException re) {
            log.error("merge failed", re);
            throw re;
        }
    }
    public Userinfo findById(java.lang.Integer id) {
        log.debug("getting Userinfo instance with id: " + id);
        try {
            Userinfo instance = (Userinfo) sessionFactory.getCurrentSession().get("com.po.Userinfo", id);
            if (instance == null) {
                log.debug("get successful, no instance found");
            } else {
                log.debug("get successful, instance found");
            }
            return instance;
        } catch (RuntimeException re) {
            log.error("get failed", re);
            throw re;
        }
    }
    public List findByExample(Userinfo instance) {
        log.debug("finding Userinfo instance by example");
        try {
            List results = sessionFactory.getCurrentSession().createCriteria("com.po.Userinfo")
                    .add(Example.create(instance)).list();
            log.debug("find by example successful, result size: " + results.size());
            return results;
        } catch (RuntimeException re) {
            log.error("find by example failed", re);
            throw re;
        }
    }
}

hibernate.cfg.xml代码

<hibernate-configuration>
    <session-factory >
        <property name="hibernate.connection.driver_class">com.mysql.jdbc.Driver</property>
        <property name="hibernate.connection.password">lcy2350738</property>
        <property name="hibernate.connection.url">jdbc:mysql://localhost:3306/userdb</property>
        <property name="hibernate.connection.username">root</property>
        <property name="hibernate.dialect">org.hibernate.dialect.MySQLDialect</property>
        <property name="hibernate.search.autoregister_listeners">true</property>
        <property name="hibernate.validator.apply_to_ddl">false</property>
        <mapping resource="com/po/Userinfo.hbm.xml" />
    </session-factory></hibernate-configuration>