这篇文章主要介绍“SSM框架分页如何实现”的相关知识，小编通过实际案例向大家展示操作过程，操作方法简单快捷，实用性强，希望这篇“SSM框架分页如何实现”文章能帮助大家解决问题。
1.首先创建一个分页的工具类
package cn.page.po;
import java.io.Serializable;
public class Page implements Serializable { private static final long serialVersionUID = -3198048449643774660L;
private int pageNow = 1; // 当前页数
private int pageSize = 4; // 每页显示记录的条数
private int totalCount; // 总的记录条数
private int totalPageCount; // 总的页数
@SuppressWarnings("unused")
private int startPos; // 开始位置，从0开始
/**
* 通过构造函数 传入 总记录数 和 当前页
* @param totalCount
* @param pageNow
*/
public Page(int totalCount, int pageNow) {
this.totalCount = totalCount;
this.pageNow = pageNow;
}
/**
* 取得总页数，总页数=总记录数/每页显示记录的条数
* @return
*/
public int getTotalPageCount() {
totalPageCount = getTotalCount() / getPageSize();
return (totalCount % pageSize == 0) ? totalPageCount //总页数
: totalPageCount + 1;
}
public void setTotalPageCount(int totalPageCount) {
this.totalPageCount = totalPageCount;
}
public int getPageNow() {
return pageNow;
}
public void setPageNow(int pageNow) {
this.pageNow = pageNow;
}
public int getPageSize() {
return pageSize;
}
public void setPageSize(int pageSize) {
this.pageSize = pageSize;
}
public int getTotalCount() {
return totalCount;
}
public void setTotalCount(int totalCount) {
this.totalCount = totalCount;
}
/**
* 取得选择记录的初始位置
* @return
*/
public int getStartPos() {
return (pageNow - 1) * pageSize;
}
public void setStartPos(int startPos) {
this.startPos = startPos;
}
}2.写mapper.xml文件
<?xml version="1.0" encoding="UTF-8"?><!DOCTYPE mapper
PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
"http://mybatis.org/dtd/mybatis-3-mapper.dtd"><mapper namespace="cn.page.mapper.UserMapper"><resultMap type="cn.page.po.User" id="userMap">
<id property="id" column="id" />
<result property="emplnumb" column="emplnumb" />
<result property="username" column="username" />
<result property="password" column="password" />
<result property="address" column="address" /> </resultMap>
<!-- 分页SQL语句 -->
<select id="selectUserByPage" resultMap="userMap">
select *
from user limit #{startPos},#{pageSize}
</select> <!-- 取得记录的总数 --> <select id="getUserCount" resultType="long">
SELECT COUNT(*) FROM user
</select></mapper>3.mapper接口
/**
* 使用注解方式传入多个参数
* @param page
* @return startPos},#{pageSize}
*/public List<User> selectUserByPage(@Param(value="startPos") Integer startPos,
@Param(value="pageSize") Integer pageSize);
/**
* 用户总数
*/public long getUserCount();4.service接口与实现类
void showUserByPage(HttpServletRequest request,Model model);
@Autowiredprivate UserMapper userMapper; @Override
public void showUserByPage(HttpServletRequest request, Model model) { // TODO Auto-generated method stub
String pageNow = request.getParameter("pageNow");
Page page = null;
List<User> user = new ArrayList<User>();
//查询用户总数
int totalCount = (int) userMapper.getUserCount();
if (pageNow != null) {
page = new Page(totalCount, Integer.parseInt(pageNow));
user = this.userMapper.selectUserByPage(page.getStartPos(), page.getPageSize());
} else {
page = new Page(totalCount, 1);
user = this.userMapper.selectUserByPage(page.getStartPos(), page.getPageSize());
}
model.addAttribute("user", user);
model.addAttribute("page", page);
}5.controller方法
@Controllerpublic class UserController { @Autowired
private UserService userService; @RequestMapping("/pagingUser.action") public String pagingUser(HttpServletRequest request,Model model){
userService.showUserByPage(request, model); return "pagingUser";
}
}6.页面显示
<c:forEach items="${user }" var="user">
<tr>
<td>${user.emplnumb }</td>
<td>${user.username }</td>
<td>${user.address }</td>
<td>${user.telephone }</td>
</tr>
</c:forEach></table>
<div align="center">
<font size="2">共 ${page.totalPageCount} 页</font> <font size="2">第
${page.pageNow} 页</font> <a href="${pageContext.request.contextPath}/pagingUser.action?pageNow=1">首页</a>
<c:choose>
<c:when test="${page.pageNow - 1 > 0}">
<a href="${pageContext.request.contextPath}/pagingUser.action?pageNow=${page.pageNow - 1}">上一页</a>
</c:when>
<c:when test="${page.pageNow - 1 <= 0}">
<a href="${pageContext.request.contextPath}/pagingUser.action?pageNow=1">上一页</a>
</c:when>
</c:choose>
<c:choose>
<c:when test="${page.totalPageCount==0}">
<a href="${pageContext.request.contextPath}/pagingUser.action?pageNow=${page.pageNow}">下一页</a>
</c:when>
<c:when test="${page.pageNow + 1 < page.totalPageCount}">
<a href="${pageContext.request.contextPath}/pagingUser.action?pageNow=${page.pageNow + 1}">下一页</a>
</c:when>
<c:when test="${page.pageNow + 1 >= page.totalPageCount}">
<a href="${pageContext.request.contextPath}/pagingUser.action?pageNow=${page.totalPageCount}">下一页</a>
</c:when>
</c:choose>
<c:choose>
<c:when test="${page.totalPageCount==0}">
<a href="${pageContext.request.contextPath}/pagingUser.action?pageNow=${page.pageNow}">尾页</a>
</c:when>
<c:otherwise>
<a href="${pageContext.request.contextPath}/pagingUser.action?pageNow=${page.totalPageCount}">尾页</a>
</c:otherwise>
</c:choose>
</div>
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