test22222222

package org.hongbo.Yangcl.dao.west;/** * Created with IntelliJ IDEA. * User: Yangcl * Date: 13-8-13 * Time: 下午4:22 * To change this template use File | Settings | File Templates. */import org.hongbo.Yangcl.dao.BaseDao;import org.hibernate.Session;import org.hibernate.SessionFactory;import org.springframework.stereotype.Repository;import org.springframework.util.Assert;import javax.annotation.Resource;import java.util.List;@Repositorypublic class EmployeeDaoImpl implements BaseDao{    //Spring的注解形式：@Repository、@Service、@Controller，它们分别对应存储层Bean，业务层Bean，和展示层Bean。    protected SessionFactory sessionFactory;    public Session getSession()    {        return sessionFactory.getCurrentSession();    }    @Resource    public void setSessionFactory(SessionFactory sessionFactory)    {        this.sessionFactory = sessionFactory;    }    /**     * public <T> void saveInfo(List<T> list) 这是一个方法级别的泛型结构     * T代表泛型，他也可以是其他字母，如：P、E、Q     *     * Assert.notNull(list, "entity is required"); 这是一个断言     * 表示list如果为空，则不再继续执行下面的语句，转而在     * 控制台上输出： "entity is required"     *     * **/    public <T> void saveInfo(List<T> list)    {        Assert.notNull(list, "entity is required");        for (T obj : list)        {            getSession().save(obj);        }        System.out.println("Function saveInfo has run");    }    @Override    public <T> void updateInfo(List<T> list)    {        Assert.notNull(list, "list不能为空");        for (T obj  :  list)        {            getSession().update(obj);        }        System.out.println("Function updateInfo has run");    }    public <T> List<T> find(Class<T> cla)    {        Assert.notNull(cla, "class不能为空");        String hql = "from " + cla.getName();        return getSession().createQuery(hql).list();    }    public <T> void saveOrUpdate(List<T> list)    {        Assert.notNull(list, "list不能为空");        for (T obj  :  list)        {            getSession().saveOrUpdate(obj);        }    }    public <T> void delete(List<T> list)    {        Assert.notNull(list, "list不能为空");        for (T obj : list)        {            getSession().delete(obj);        }    }}