java对list<Object>进行手动分页实现 | 您所在的位置:网站首页 › java 手动分页 › java对list<Object>进行手动分页实现 |
该方法使用的jdk1.6以后自带的分页工具类实现 public static void main(String[] args) { ArrayList list = new ArrayList(); list.add("Luo"); list.add("Tian"); list.add("yan"); list.add("23"); list.add("elegant"); list.add("optimistic"); list.add("mysterious"); System.out.println("分页前数据:"+list); //分页之后 PageInfo pageInfo = getPageInfo(2, 2, list); System.out.println("总大小:"+pageInfo.getTotal()); System.out.println("当前页:"+pageInfo.getPageNum()); System.out.println("当前页大小:"+pageInfo.getPageSize()); System.out.println("当前页数据:"+pageInfo.getList()); } public static PageInfo getPageInfo(int currentPage, int pageSize, List list) { int total = list.size(); if (total > pageSize) { int toIndex = pageSize * currentPage; if (toIndex > total) { toIndex = total; } int totalPage = total % pageSize == 0 ? (total/pageSize) : (total/pageSize)+1; if (totalPage < currentPage){ list = new ArrayList(); }else { list = list.subList(pageSize * (currentPage - 1), toIndex); } } Page page = new Page(currentPage, pageSize); page.addAll(list); page.setPages((total + pageSize - 1) / pageSize); page.setTotal(total); return new PageInfo(page); }效果 到此这篇关于java对list<Object>进行手动分页实现的文章就介绍到这了,更多相关java list<Object>手动分页内容请搜索编程学习网以前的文章希望大家以后多多支持编程学习网! |
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