SpringMVC3.0+MyIbatis3.0(分页示例)
参考资料
1 ibatis2.x与mybatis(ibatis3.x)的比较
http://zhaohe162.blog.163.com/blog/static/382167972011111114742371/
2 MyBatis学习 之 三、动态SQL语句
http://limingnihao.iteye.com/blog/782190
主要使用Oracle的三层sql实现分页!
一 环境:XP3+Oracle10g+MyEclipse6+(Tomcat)+JDK1.5
二 工程相关图片:
1 DEMO图片
2 工程代码图片
3 相关jar包图片
三 此示例是在:
SSI:SpringMVC3+Mybatis3(登录及CRUD操作)基础上加的分页功能:
http://liuzidong.iteye.com/blog/1051760
四 主要代码文件
1 BaseController.java用于子类调用方便
2 UserController.java
3 UserMapper.java
4 UserMapper.xml
5 userList.jsp
6 page.jsp,此页面你不用关心,只管引用就行了
1 ibatis2.x与mybatis(ibatis3.x)的比较
http://zhaohe162.blog.163.com/blog/static/382167972011111114742371/
2 MyBatis学习 之 三、动态SQL语句
http://limingnihao.iteye.com/blog/782190
主要使用Oracle的三层sql实现分页!
一 环境:XP3+Oracle10g+MyEclipse6+(Tomcat)+JDK1.5
二 工程相关图片:
1 DEMO图片
2 工程代码图片
3 相关jar包图片
三 此示例是在:
SSI:SpringMVC3+Mybatis3(登录及CRUD操作)基础上加的分页功能:
http://liuzidong.iteye.com/blog/1051760
四 主要代码文件
1 BaseController.java用于子类调用方便
package com.liuzd.ssm.web;
import javax.servlet.http.HttpServletRequest;
import com.liuzd.page.Page;
import com.liuzd.page.PageState;
import com.liuzd.page.PageUtil;
/**
*Title:
*Description:
*Copyright: Copyright (c) 2011
*Company:http://liuzidong.iteye.com/
*Makedate:2011-5-23 下午03:31:03
* @author liuzidong
* @version 1.0
* @since 1.0
*
*/
public class BaseController {
/**
* oracel的三层分页语句
* 子类在展现数据前,进行分页计算!
* @param totalCount 根据查询SQL获取的总条数
* @param columnNameDescOrAsc 列名+排序方式 : ID DESC or ASC
*/
protected Page executePage(HttpServletRequest request,Long totalCount){
if(null == totalCount){
totalCount = 0L;
}
/**页面状态,这个状态是分页自带的,与业务无关*/
String pageAction = request.getParameter("pageAction");
String value = request.getParameter("pageKey");
/**获取下标判断分页状态*/
int index = PageState.getOrdinal(pageAction);
Page page = null;
/**
* index < 1 只有二种状态
* 1 当首次调用时,分页状态类中没有值为 NULL 返回 -1
* 2 当页面设置每页显示多少条: index=0,当每页显示多少条时,分页类要重新计算
* */
Page sessionPage = getPage(request);
if(index < 1){
page = PageUtil.inintPage(totalCount,index,value,sessionPage);
}else{
page = PageUtil.execPage(index,value,sessionPage);
}
setSession(request,page);
return page;
}
private Page getPage(HttpServletRequest request) {
Page page = (Page)request.getSession().getAttribute(PageUtil.SESSION_PAGE_KEY);
if(page == null){
page = new Page();
}
return page;
}
private void setSession(HttpServletRequest request,Page page) {
request.getSession().setAttribute(PageUtil.SESSION_PAGE_KEY,page);
}
}
2 UserController.java
package com.liuzd.ssm.web;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import javax.annotation.Resource;
import javax.servlet.http.HttpServletRequest;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.SessionAttributes;
import org.springframework.web.servlet.ModelAndView;
import com.liuzd.page.Page;
import com.liuzd.ssm.entity.User;
import com.liuzd.ssm.service.UserService;
@Controller
@RequestMapping("/user")
@SessionAttributes("userList")
public class UserController extends BaseController{
private UserService userService;
public UserService getUserService() {
return userService;
}
@Resource
public void setUserService(UserService userService) {
this.userService = userService;
}
@RequestMapping("/userList")
public ModelAndView userList(HttpServletRequest request){
Map<String,Object> params = new HashMap<String,Object>();
//添加查询条件
// ... params.put("name","jack");...
//获取总条数
Long totalCount = this.getUserService().pageCounts(params);
//设置分页对象
Page page = executePage(request,totalCount);
//如排序
if(page.isSort()){
params.put("orderName",page.getSortName());
params.put("descAsc",page.getSortState());
}else{
//没有进行排序,默认排序方式
params.put("orderName","age");
params.put("descAsc","asc");
}
//压入查询参数:开始条数与结束条灵敏
params.put("startIndex", page.getBeginIndex());
params.put("endIndex", page.getEndinIndex());
ModelAndView mv = new ModelAndView();
//查询集合
List<User> users = this.getUserService().pageList(params);
mv.addObject("userList",users);
mv.setViewName("userList");
return mv;
}
}
3 UserMapper.java
package com.liuzd.ssm.mapper;
import java.util.List;
import java.util.Map;
import org.apache.ibatis.session.RowBounds;
import com.liuzd.ssm.entity.User;
public interface UserMapper{
// .....
public List<User> pageList(Map<String,Object> params);
//分页总条数
public Long pageCounts(Map<String,Object> p);
}
4 UserMapper.xml
<?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="com.liuzd.ssm.mapper.UserMapper">
<resultMap type="com.liuzd.ssm.entity.User" id="userMap">
<id property="id" column="id"/>
<result property="name" column="name"/>
<result property="age" column="age"/>
<result property="sex" column="sex"/>
<result property="address" column="address"/>
<result property="password" column="password"/>
</resultMap>
<select id="pageList" parameterType="map" resultType="list" resultMap="userMap">
select ttt.* from(select tt.*,rownum rn from(select * from users
<where>
<if test="name != null and name != ''">
<!--
特别提醒一下， $只是字符串拼接， 所以要特别小心sql注入问题。
在开发时使用: $,方便调试sql,发布时使用: #
and name like #{name},
-->
and name like '%${name}%'
</if>
<if test="sex != null and sex != ''">
and sex = #{sex}
</if>
</where>
order by ${orderName} ${descAsc} )tt)ttt
<where>
<if test="startIndex != null and startIndex != ''">
rn > ${startIndex}
</if>
<if test="endIndex != null and endIndex != ''">
<![CDATA[ and rn <= ${endIndex} ]]>
</if>
</where>
</select>
<select id="pageCounts" parameterType="map" resultType="long">
select count(*) from users
<where>
<if test="name != null and name != ''">
and name like #{name}
</if>
<if test="sex != null and sex != ''">
and sex = #{sex}
</if>
</where>
</select>
</mapper>
5 userList.jsp
<%@ page language="java" pageEncoding="UTF-8" contentType="text/html; charset=UTF-8"%>
<%@ taglib uri="/WEB-INF/c.tld" prefix="c"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<%@ include file="/common/meta.jsp"%>
</head>
<body>
<table width="60%" border="1" cellpadding="0" align="center">
<thead>
<tr>
<th style="cursor: hand;" title="按姓名进行排序" onclick="sortPage('name')" valign="top">
姓名<font color='red'>${page.sortName eq "name" ? page.sortInfo : page.defaultInfo}</font>
</th>
<th style="cursor: hand;" title="按年龄进行排序" onclick="sortPage('age')" valign="top">
年龄<font color='red'>${page.sortName eq "age" ? page.sortInfo : page.defaultInfo}</font>
</th>
<th style="cursor: hand;" title="按性别进行排序" onclick="sortPage('sex')" valign="top">
性别<font color='red'>${page.sortName eq "sex" ? page.sortInfo : page.defaultInfo}</font>
</th>
<th style="cursor: hand;" title="按地址进行排序" onclick="sortPage('address')" valign="top">
地址<font color='red'>${page.sortName eq "address" ? page.sortInfo : page.defaultInfo}</font>
</th>
<th style="cursor: hand;" >
操作
</th>
</tr>
</thead>
<tbody>
<c:forEach items="${userList}" var="user">
<tr align="center">
<td>
${user.name}
</td>
<td>
${user.age}
</td>
<td>
${user.sex eq 1 ? "男" : user.sex eq 2 ? "女" : "未知"}
</td>
<td>
${user.address}
</td>
<td>
<a
href="${pageContext.request.contextPath}/user/toAddUser.do">添加</a>
|
<a
href="${pageContext.request.contextPath}/user/getUser/${user.id}.do">编辑</a>
|
<a
href="${pageContext.request.contextPath}/user/delUser/${user.id}.do">删除</a>
</td>
</tr>
</c:forEach>
<jsp:include page="/page/page.jsp">
<jsp:param name="url" value="user/userList.do" />
</jsp:include>
</tbody>
</table>
<br>
<a href="${pageContext.request.contextPath}/index.jsp">返回</a>
</body>
</html>
6 page.jsp,此页面你不用关心,只管引用就行了
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%>
<%@ taglib uri="/WEB-INF/c.tld" prefix="c"%>
<c:set var="page" value="${sessionScope.page}" />
<c:set var="path" value="${pageContext.request.contextPath}" />
<c:set var="url" value="${param.url}" />
<c:set var="urlParams" value="${param.urlParams}" />
<c:set var="pathurl" value="${path}/${url}" />
<tr>
<td colspan="5">
共${page.totalCount}条记录 共${page.totalPage}页 每页显示${page.everyPage}条
当前第${page.currentPage}页
<c:choose>
<c:when test="${page.hasPrePage eq false}">
<<首页 <上页
</c:when>
<c:otherwise>
<a href="${pathurl}?&pageAction=first${urlParams}"><<首页 </a>
<a href="${pathurl}?pageAction=previous${urlParams}" /><上一页</a>
</c:otherwise>
</c:choose>
||
<c:choose>
<c:when test="${page.hasNextPage eq false}">
下页> 尾页>>
</c:when>
<c:otherwise>
<a href="${pathurl}?&pageAction=next${urlParams}">下一页> </a>
<a href="${pathurl}?pageAction=last${urlParams}" />末页>></a>
</c:otherwise>
</c:choose>
<SELECT name="indexChange" id="indexChange"
onchange="getCurrentPage(this.value);">
<c:forEach var="index" begin="1" end="${page.totalPage}" step="1">
<option value="${index}" ${page.currentPage eq index ? "selected" : ""}>
第${index}页
</option>
</c:forEach>
</SELECT>
每页显示:<select name="everyPage" id="everyPage" onchange="setEveryPage(this.value);">
<c:forEach var="pageCount" begin="5" end="${page.totalCount}" step="5">
<option value="${pageCount}" ${page.everyPage eq pageCount ? "selected" : ""}>
${pageCount}条
</option>
</c:forEach>
</select>
</td>
</tr>
<div style='display: none'>
<a class=listlink id="indexPageHref" href='#'></a>
</div>
<script>
function getCurrentPage(index){
var a = document.getElementById("indexPageHref");
a.href = '${pathurl}?pageAction=gopage&pageKey='+index+'${urlParams}';
a.setAttribute("onclick",'');
a.click("return false");
}
function setEveryPage(everyPage){
var a = document.getElementById("indexPageHref");
var currentPage = document.getElementById('indexChange').value;
a.href = '${pathurl}?pageAction=setpage&pageKey='+everyPage+'${urlParams}';
a.setAttribute("onclick",'');
a.click("return false");
}
function sortPage(sortName){
var a = document.getElementById("indexPageHref");
a.href = '${pathurl}?pageAction=sort&pageKey='+sortName+'${urlParams}';
a.setAttribute("onclick",'');
a.click("return false");
}
</script>