spring+springMVC+MyBatis 分页功能代码封装
页面效果图展示：
分页工具类：Pagination
package com.wlsq.kso.util;
import java.io.Serializable;
import java.util.ArrayList;
import java.util.List;
/**
* 储存分页处理工具类 在调用此类的方法之前需设置总页数(即得先从数据库查询到相应数据的数据量)
*
* @author ahomeeye
* @version 1.0
*/
public class Pagination implements Serializable {
private static final long serialVersionUID = 1L;
private int start; // start表示当前页开始的记录数,start=每页行数*(当前页数-1)
private int end; // 当前页结束的记录行数
private int totalCount; // 总行数
private int rowsPerPage = 1; // 每页行数，默认10
private int currentPage; // 当前页数
private int pageListSize = 6;// 页码列表大小，默认9
private List pageNumList = new ArrayList();
public Pagination() {
start = 0;
end = 0;
currentPage = 1;
this.totalCount = 0;
}
public Pagination(int totalCount) {
start = 0;
end = 0;
currentPage = 1;
this.totalCount = totalCount;
}
public Pagination(int totalCount, int numPerPage) {
start = 0;
end = 0;
this.totalCount = totalCount;
currentPage = 1;
if (numPerPage > 0) {
rowsPerPage = numPerPage;
}
}
/**
* 执行翻页动作
*
* @param currentPage
* 要翻到的目标页码
* @return 返回翻页对象
*/
public Pagination doPagination(int currentPage) {
gotoPage(currentPage);
return this;
}
// 设置起始数
public int getStart() {
start = rowsPerPage * (currentPage - 1);
return start;
}
// 得到起始数
public void setStart(int start) {
if (start < 0) {
this.start = 0;
} else if (start >= this.totalCount) {
this.start = this.totalCount - 1;
} else {
this.start = start;
}
}
// 设置当前页的最后一行的在总记录中的顺序(从0开始)
public void setEnd(int end) {
this.end = end;
}
// 得到当前页的最后一行的在总记录中的顺序(从0开始)
public int getEnd() {
if (rowsPerPage * currentPage > this.totalCount) {
end = this.totalCount - 1;
} else {
end = rowsPerPage * currentPage - 1;
}
return end;
}
// 以下4个方法供控制器(struts)调用
// 判断能否到第一页;只要能到上一页，肯定就有第一页
public boolean firstEnable() {
return previousEnable();
}
// 判断能否到上一页
public boolean previousEnable() {
return currentPage > 1;// 只要不是第一页，就能到上一页
}
// 判断能否到下一页
public boolean nextEnable() {
return currentPage * rowsPerPage < this.totalCount;
}
// 判断能否到最后一页；只要有下一页，就肯定有最后一页.
public boolean lastEnable() {
return nextEnable();
}
// 跳到第一页
public void firstPage() {
currentPage = 1;
}
// 跳到上一页
public void previousPage(int cPage) {
currentPage = (cPage - 1) > 0 ? (cPage - 1) : 1;
}
// 跳到下一页
public void nextPage(int cPage) {
currentPage = cPage + 1;
if (currentPage * rowsPerPage > this.totalCount) {
lastPage();
}
}
// 跳到最后一页
public void lastPage() {
if (this.totalCount % rowsPerPage == 0) {
currentPage = this.totalCount / rowsPerPage;
} else {
currentPage = this.totalCount / rowsPerPage + 1;
}
}
// 跳到指定的某一页
public void gotoPage(int pageNumber) {
if (pageNumber <= 1) {
currentPage = 1;
} else if (getTotalCount() < this.getRowsPerPage()) {
currentPage = 1;
} else if (pageNumber * rowsPerPage >= this.totalCount) {
lastPage();
} else {
currentPage = pageNumber;
}
}
// 设置总行数
public void setTotalCount(int totalCount) {
this.totalCount = totalCount;
}
// 得到总行数
public int getTotalCount() {
return totalCount;
}
// 设置每页行数
public void setRowsPerPage(int rowsPerPage) {
this.rowsPerPage = rowsPerPage;
}
// 得到每页行数
public int getRowsPerPage() {
return rowsPerPage;
}
// 得到总页数
public int getPages() {
if (this.totalCount % rowsPerPage == 0)
return this.totalCount / rowsPerPage;
else
return this.totalCount / rowsPerPage + 1;
}
// 得到当前页数
public int getCurrentPage() {
return currentPage;
}
// 设置当前页数
public void setCurrentPage(int currentPage) {
this.currentPage = currentPage;
}
public int getPageListSize() {
return pageListSize;
}
// 设置页码列表大小
public void setPageListSize(int pageListSize) {
this.pageListSize = pageListSize;
}
// 得到页面列表
public List getPageNumList() {
this.pageNumList.removeAll(this.pageNumList);// 设置之前先清空
int totalPage = getPages();
if (totalPage > this.pageListSize) {
int halfSize = this.pageListSize / 2;
int first = 1;
int end = 1;
if (this.currentPage - halfSize < 1) { // 当前页靠近最小数1
first = 1;
end = this.pageListSize;
} else if (totalPage - this.currentPage < halfSize) { // 当前页靠近最大数
first = totalPage - this.pageListSize + 1;
end = totalPage;
} else {
first = this.currentPage - halfSize;
end = this.currentPage + halfSize;
}
for (int i = first; i <= end; i++) {
this.pageNumList.add(i);
}
} else {
for (int i = 0; i < totalPage; i++) {
this.pageNumList.add(i + 1);
}
}
return pageNumList;
}
}
分页样式和js文件（page.css/page.js）
page.js
$(function(){
$(document).on("click",".page_num,.next_page,.prev_page,.first_page,.last_page",function(){
var $self = $(this);
if($self.parent().attr("class") == 'disabled'){
return false;
}
$("#page_current").val($self.attr("data-pnum"));
$("#page_form").submit();
});
});page.css
.pages{ width:100.5%; text-align:right; padding:10px 0; clear:both;}
.pages a,.pages b{ font-size:12px; font-family:Arial, Helvetica,
sans-serif; margin:0 2px;}
.pages a,.pages b{ border:1px solid #5FA623; background:#fff; padding:2px
6px; text-decoration:none}
.pages b,.pages a:hover{ background:#7AB63F; color:#fff;}
controller 文件
/*开发者查询列表*/
@RequestMapping(value="/select.action" )
public ModelAndView Select(HttpServletRequest request){
ModelAndView modelAndView = new ModelAndView();
int pageSize = Integer
.parseInt(request.getParameter("pageSize") == null ? "1"
: request.getParameter("pageSize"));
int pageNum = Integer
.parseInt(request.getParameter("pageNum") == null ? "1"
: request.getParameter("pageNum"));
Map maps = new HashMap();
maps.put("pageSize", pageSize);
maps.put("pageNum", (pageNum-1) * pageSize);
Developer developer = new Developer();
List develpers = developerService.selectByDeveloper(maps);
int count = developerService.selectCountDevelopers();
Pagination page = new Pagination(count);
page.setCurrentPage(pageNum);
modelAndView.addObject("pnums", page.getPageNumList());
modelAndView.addObject("currentPage", pageNum);
modelAndView.addObject("pnext_flag", page.nextEnable());
modelAndView.addObject("plast_flag", page.lastEnable());
page.lastPage();
modelAndView.addObject("last_page", page.getCurrentPage());
modelAndView.addObject("count", count);
modelAndView.addObject("pageCount", page.getPages());
if(develpers != null){
modelAndView.setViewName("backstage/home");
modelAndView.addObject("developers", develpers);
}
return modelAndView;
} mybatis配置文件（service 文件名与mybatis 配置文件名一致，这是我们公司老大提供的）
项目页面源码：
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme() + "://"
+ request.getServerName() + ":" + request.getServerPort()
+ path + "/";
%>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core"%>
<%@ taglib prefix="fn" uri="http://java.sun.com/jsp/jstl/functions"%>
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