public Page<T> findPage(final Page<T> page, final String hql, final Object... values) {
Assert.notNull(page, "page不能为空");
String newHql = createHqlAddOrderBy(hql, page);
Query q = createQuery(newHql, values);
if (page.isAutoCount()) {
int pageNo = page.getPageNo();
int pageSize = page.getPageSize();
long totalCount = countHqlResult(newHql, values);
long z = totalCount / pageSize;
long y = totalCount % pageSize;
long c = pageNo - z;
page.setTotalCount(totalCount);
if (y == 0 && c == 1) { // 该页没有数据转到上一页
page.setPageNo(Integer.valueOf(pageNo - 1));
}
}
setPageParameter(q, page);
List result = q.list();
page.setResult(result);
return page;
}
/**
* 按Criterion分页查询.
*
* @param page 分页参数.包括pageSize、firstResult、orderBy、asc、autoCount. 其中firstResult可直接指定,也可以指定pageNo.
* autoCount指定是否动态获取总结果数.
* @param criterion 数量可变的Criterion.
* @return 分页查询结果.附带结果列表及所有查询时的参数.
*/
public Page<T> findByCriteria(Page page, Criterion... criterion) {
Assert.notNull(page);
Criteria c = createCriteria(criterion);
if (page.isAutoCount()) {
page.setTotalCount(countQueryResult(page, c));
}
if (page.isOrderBySetted()) {
if (page.getOrder().endsWith("asc")) {
c.addOrder(Order.asc(page.getOrderBy()));
} else {
c.addOrder(Order.desc(page.getOrderBy()));
}
}
// hibernate的firstResult的序号从0开始
c.setFirstResult(page.getFirst() - 1);
c.setMaxResults(page.getPageSize());
page.setResult(c.list());
return page;
}
