DISTINCT无法正常工作，如何解决此问题

Question

 try {
        Session s = NewHibernateUtil.getSessionFactory().openSession();
        Criteria c = s.createCriteria(Product.class);
        c.add(Restrictions.eq("Gender", "Men"));
        c.setResultTransformer(c.DISTINCT_ROOT_ENTITY);
        List<Product> pList = c.list();
        String size = "<option>Select size</option>";
        for (Product p : pList) {
            size += "<option>"+p.getProductSize()+"</option>";
        }
        resp.getWriter().write(size);
    } catch (Exception e) {
        e.printStackTrace();
    }

我需要从产品中删除所有重复的尺寸，但这对我的建议都不起作用

Answer 1

更改行

c.setResultTransformer(c.DISTINCT_ROOT_ENTITY);

与

c.setResultTransformer(CriteriaSpecification.DISTINCT_ROOT_ENTITY);

Answer 2

尝试一下：

var config = new LoggingConfiguration();
NLog.LogManager.Configuration = config;
NServiceBus.Logging.LogManager.Use<NLogFactory>();