如何将DataTable转换为其他类型的对象的List或ArrayList

Question

I have a DataTable object which I need to cast to List<ScParametrics> and save the list to a database using Hibernate.

The warning is DataTable cannot be cast to java.util.List

public static addParamDataTable(DataTable listDataTable) {
    Session session = HibernateUtil.getSessionFactory();
    Transaction tx = session.beginTransaction();

    List<ScParametrics> list = (List) listDataTable;
    for (Iterator<ScParametrics> it = list.iterator(); it.hasNext();) {
        ScParametrics scParametrics = it.next();
        session.saveOrUpdate(scParametrics);
    }
}

Answer 1

If you are casting something into a list like that you need to be casting the typeof the list not the list.

List list = (ScParametrics) listDataTable;

Hope this helps.