我将创建此SQL查询// Store current state in a simple variable
var isZoomedIn = false;
$('.button1').click(function(){
if(isZoomedIn) {
// Zoom it out
$('div .textwidget').first().css({
'background': 'none',
'height': '100%'
});
$('.textwidget img').first().css({
'transform': 'scale(1)',
'transition': '1s',
'margin-left': '0px'
});
$(this).text('VIEW IN A ROOM');
}
else {
// Zoom it in
$('div .textwidget').first().css({
'background': 'url(http://art.smartcredit.md/wp-content/uploads/2015/04/view_in_room_couch_plant.jpg)',
'background-size': '133%',
'height': '520px'
});
$('.textwidget img').first().css({
'transform': 'scale(0.4)',
'transition': '1s',
'margin-left': '-25px'
});
$(this).text('BACK TO ARTWORK');
}
});
等效项：
SQL：
Criteria这是我的SELECT
orders.id,
book.title,
orderitem.quantity
FROM orderitem
INNER JOIN book ON book.id = orderitem.book_id
INNER JOIN orders ON orders.id = orderitem.orders_id
WHERE user_id = 1
查询：
Criteria它没有例外，但只显示Criteria c = getSession().createCriteria(OrderItem.class, "oi");
c.setProjection(Projections.property("quantity"));
c.createAlias("oi.book", "book");
c.setProjection(Projections.property("title"));
c.createAlias("oi.orders", "or");
c.setProjection(Projections.property("id"));
c.createAlias("or.user", "usr");
c.add(Restrictions.eq("usr.id", "1"));
return c.list();
列：
Orders.id答案 0 :(得分：4)
使用ProjectionList。它将返回包含字段quantity，title，id的Object数组。
Criteria c = getSession().createCriteria(OrderItem.class, "oi");
c.createAlias("oi.book", "book");
c.createAlias("oi.orders", "or");
c.createAlias("or.user", "usr");
ProjectionList proList = Projections.projectionList();
proList.add(Projections.property("oi.quantity"));
proList.add(Projections.property("book.title"));
proList.add(Projections.property("or.id"));
c.setProjection(proList);
c.add(Restrictions.eq("usr.id", "1"));
return c.list();
答案 1 :(得分：2)
我需要将结果列表作为命名密钥＆amp;索引和＆amp;以外的值值。我使用了以下方式。
Criteria c = getSession().createCriteria(OrderItem.class, "oi");
c.createAlias("oi.book", "book");
c.createAlias("oi.orders", "or");
c.createAlias("or.user", "usr");
ProjectionList proList = Projections.projectionList();
proList.add(Projections.property("oi.quantity"), "quantity");
proList.add(Projections.property("book.title"), "title");
proList.add(Projections.property("or.id"), "id");
c.setProjection(proList);
c.setResultTransformer(Criteria.ALIAS_TO_ENTITY_MAP);
c.add(Restrictions.eq("usr.id", "1"));
return c.list();