JAVA PageInfo实现分页数据获取与展示

背景

Servlet中怎么实现大数据分页获取呢？

方案

引入pagehelper依赖

Servlet

HTML

PageInfo

package com.github.pagehelper;

import java.util.Collection;
import java.util.List;

public class PageInfo<T> extends PageSerializable<T> {
   
    private int pageNum;
    private int pageSize;
    private int size;
    private int startRow;
    private int endRow;
    private int pages;
    private int prePage;
    private int nextPage;
    private boolean isFirstPage;
    private boolean isLastPage;
    private boolean hasPreviousPage;
    private boolean hasNextPage;
    private int navigatePages;
    private int[] navigatepageNums;
    private int navigateFirstPage;
    private int navigateLastPage;

    public PageInfo() {
   
        this.isFirstPage = false;
        this.isLastPage = false;
        this.hasPreviousPage = false;
        this.hasNextPage = false;
    }

    public PageInfo(List<T> list) {
   
        this(list, 8);
    }

    public PageInfo(List<T> list, int navigatePages) {
   
        super(list);
        this.isFirstPage = false;
        this.isLastPage = false;
        this.hasPreviousPage = false;
        this.hasNextPage = false;
        if (list instanceof Page) {
   
            Page page = (Page)list;
            this.pageNum = page.getPageNum();
            this.pageSize = page.getPageSize();
            this.pages = page.getPages();
            this.size = page.size();
            if (this.size == 0) {
   
                this.startRow = 0;
                this.endRow = 0;
            } else {
   
                this.startRow = page.getStartRow() + 1;
                this.endRow = this.startRow - 1 + this.size;
            }
        } else if (list instanceof Collection) {
   
            this.pageNum = 1;
            this.pageSize = list.size();
            this.pages = this.pageSize > 0 ? 1 : 0