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增加列表分页方法

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wangchen
2021-08-12 10:36:26 +08:00
parent 1fbc6b61bd
commit 270a97116a
2 changed files with 53 additions and 0 deletions
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19
hutool-core/src/test/java/cn/hutool/core/collection/ListUtilTest.java
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@@ -100,6 +100,25 @@ public class ListUtilTest {
PageUtil.setFirstPageNo(1);
int[] d1 = ListUtil.page(0,8,a).stream().mapToInt(Integer::valueOf).toArray();
Assert.assertArrayEquals(new int[]{1,2,3,4,5},d1);
List<List<Integer>> pageListData = new ArrayList<>();
ListUtil.page(a, 2, pageListData::add);
Assert.assertArrayEquals(new int[]{1, 2}, pageListData.get(0).stream().mapToInt(Integer::valueOf).toArray());
Assert.assertArrayEquals(new int[]{3, 4}, pageListData.get(1).stream().mapToInt(Integer::valueOf).toArray());
Assert.assertArrayEquals(new int[]{5}, pageListData.get(2).stream().mapToInt(Integer::valueOf).toArray());
pageListData.clear();
ListUtil.page(a, 2, pageList -> {
pageListData.add(pageList);
if (pageList.get(0).equals(1)) {
pageList.clear();
}
});
Assert.assertArrayEquals(new int[]{}, pageListData.get(0).stream().mapToInt(Integer::valueOf).toArray());
Assert.assertArrayEquals(new int[]{3, 4}, pageListData.get(1).stream().mapToInt(Integer::valueOf).toArray());
Assert.assertArrayEquals(new int[]{5}, pageListData.get(2).stream().mapToInt(Integer::valueOf).toArray());
}
@Test