java hibernate 实现按条件删除多对象[通俗易懂]

public class testH {
    public static void main(String[] args) {

        Session session = sessionFactory.getCurrentSession();
        //删除
        TestT<TestBean> testT = new TestT();
        TestBean testBean = new TestBean();
        testBean.setName("zhan");
        testBean.setCode("hhaa");

        /*
         * @Date: 2021/1/9 11:37
         * 用session删除 （这种方式没有设置id 删除不了）
         */
        session = sessionFactory.getCurrentSession();
        session.beginTransaction();
        session.delete(testBean);
        session.getTransaction().commit();

        /*
         * @Date: 2021/1/9 11:37
         * 采用自己 构造删除HQL的方法删除
         */
        List<Object> paramList = new ArrayList<>();
        // createDeleteHql 方法详情看：https://blog.csdn.net/zhan107876/article/details/112389288
        // createDeleteHql 方法 演示 完整工程 github：https://github.com/zhan107876/method-invoke-demo)
        String deleteHql = testT.createDeleteHql(testBean, paramList);

        // 构造hibernate查询
        Query query = session.createQuery(deleteHql);
        if (paramList != null) {
            int size = paramList.size();
            for (int i = 0; i < size; i++) {
                query.setParameter(i, paramList.get(i));
            }
        }
        // 执行删除操作
        query.executeUpdate();
    }
}