如何使用休眠条件选择嵌套属性

尝试像

Criteria criteria = getSession().createCriteria(Registration.class);ProjectionList projectionList = Projections.projectionList();criteria.createAlias("user", "u");  // here i changed criteria.createAlias("u.country", "usercountry");  //  here i have changedprojectionList.add(Projections.property("usercountry.name"),"usercountry.name");criteria.setProjection(projectionList);criteria.list();