使用List处理分页直接上代码

1. 工具类

public class Page {

    private Integer currentPage;//当前页
    private int pageSize;//每页显示记录条数
    private int totalPage;//总页数
    private List<?> dataList;//每页显示的数据
    private int star;//开始数据

    public Integer getCurrentPage() {
        return currentPage;
    }
    public void setCurrentPage(Integer currentPage) {
        this.currentPage = currentPage;
    }
    public int getPageSize() {
        return pageSize;
    }
    public void setPageSize(int pageSize) {
        this.pageSize = pageSize;
    }
    public int getTotalPage() {
        return totalPage;
    }
    public void setTotalPage(int totalPage) {
        this.totalPage = totalPage;
    }
    public List<?> getDataList() {
        return dataList;
    }
    public void setDataList(List<?> dataList) {
        this.dataList = dataList;
    }
    public int getStar() {
        return star;
    }
    public void setStar(int star) {
        this.star = star;
    }

}

2. 处理类

  public static <T>  Page pageInfo(Page page,List<T> list){

//        page.setCurrentPage(2);
        //刚开始的页面为第一页
        if (page.getCurrentPage() == null){
            page.setCurrentPage(1);
        } else {
            page.setCurrentPage(page.getCurrentPage());
        }
        //设置每页数据为十条
        page.setPageSize(2);
        //每页的开始数
        page.setStar((page.getCurrentPage() - 1) * page.getPageSize());
        //list的大小
        int count = list.size();
        //设置总页数
        page.setTotalPage(count % 2 == 0 ? count / 2 : count / 2 + 1);
        //对list进行截取
        page.setDataList(list.subList(page.getStar(),count-page.getStar()>page.getPageSize()?page.getStar()+page.getPageSize():count));

        System.out.println("设置："+page.getDataList());
        System.out.println("list："+list);
        return page;
    }

3. 调用

 Page page  = new Page();
  List<sys1> list = new ArrayList<sys1>();
  	    sys1 s1 = new sys1();
        s1.setAge(22222);
        s1.setName("sssss");
        list.add(s1);
 		Page pageInfo = pageInfo(page,list);
        System.out.println(page.getDataList());
` ``