直接在代码里面对list集合进行分页

一写代码就开心

发布于 2021-11-17 10:16:21

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代码可运行

文章被收录于专栏：java和pythonjava和python

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代码可运行

 public List pageList(List resList, int page, int limit) {
        List resultList = null;
        if (resList != null && resList.size() != 0) {
            if (page != 0 && limit != 0) {
                Integer count = resList.size(); // 记录总数
                Integer pageCount = 0; // 页数
                if (count % limit == 0) {
                    pageCount = count / limit;
                } else {
                    pageCount = count / limit + 1;
                }

                int fromIndex = 0; // 开始索引
                int toIndex = 0; // 结束索引

                if (page != pageCount) {
                    fromIndex = (page - 1) * limit;
                    toIndex = fromIndex + limit;
                } else {
                    fromIndex = (page - 1) * limit;
                    toIndex = count;
                }
                resultList = resList.subList(fromIndex, toIndex);
            } else {
                resultList = resList;
            }
        }
        return resultList;
    }