snaker-core/src/main/java/org/snaker/engine/access/QueryFilter.java
public void setOrder(String order) {
        String lowcaseOrder = StringUtils.lowerCase(order);
        //检查order字符串的合法值
        String[] orders = StringUtils.split(lowcaseOrder, ',');
        for (String orderStr : orders) {
            if (!StringUtils.equals(DESC, orderStr) && !StringUtils.equals(ASC, orderStr)) {
                throw new IllegalArgumentException("排序类型[" + orderStr + "]不是合法值");
            }
        }
        this.order = lowcaseOrder;
    }
public void setOrder(String order) {
        String lowcaseOrder = StringUtils.lowerCase(order);
        //检查order字符串的合法值
        String[] orders = StringUtils.split(lowcaseOrder, ',');
        for (String orderStr : orders) {
            if (!StringUtils.equals(DESC, orderStr) && !StringUtils.equals(ASC, orderStr)) {
                throw new IllegalArgumentException("排序类型[" + orderStr + "]不是合法值");
            }
        }
        this.order = lowcaseOrder;
    }
设置排序类型.
@param order 可选值为desc或asc,多个排序字段时用','分隔.