一、添加maven依赖项
<span style="font-family:KaiTi_GB2312;font-size:18px;"><dependency> <groupId>com.github.miemiedev</groupId> <artifactId>mybatis-paginator</artifactId> </dependency> <dependency> <groupId>com.github.pagehelper</groupId> <artifactId>pagehelper</artifactId> </dependency></span>
版本号:
<span style="font-family:KaiTi_GB2312;font-size:18px;"><pagehelper.version>3.4.2-fix</pagehelper.version> <mybatis.paginator.version>1.2.15</mybatis.paginator.version></span>
二、Mybatis配置文件(SqlMapConfig.xml)增加分页插件
<span style="font-family:KaiTi_GB2312;font-size:18px;"><?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE configuration PUBLIC "-//mybatis.org//DTD Config 3.0//EN" "http://mybatis.org/dtd/mybatis3 config.dtd"> <configuration> <!-- 配置分页插件 --> <plugins> <plugin interceptor="com.github.pagehelper.PageHelper"> <!-- 设置数据库类型Oracle,MySQL,MarinDBName,SQLite,PostareSQL六种数据库 --> <property name="dialect" value="mysql"/> </plugin> </plugins> </configuration></span>
三、spring整合
<span style="font-family:KaiTi_GB2312;font-size:18px;"> </bean> <!-- 让spring管理sqlsessionfactory--> <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean"> <!-- 数据库连接池 --> <property name="dataSource" ref="dataSource" /> <!-- 加载mybatis的全局配置文件 --> <property name="configLocation" value="classpath:mybatis/SqlMapConfig.xml" /> </bean> <!-- 配置扫描包,加载mapper代理对象 --> <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer"> <property name="basePackage" value="Angel.mapper" /> </bean></span>
四、service分页实现
<span style="font-family:KaiTi_GB2312;font-size:18px;">@Override public EUDataGridResult selectAll(int pageNum,int pageSize) { //设置分页的参数 PageHelper.startPage(pageNum, pageSize); //查询数据 List<TbUser> list=userMapper.selectAll(); //创建一个返回值对象 EUDataGridResult result=new EUDataGridResult(); result.setRows(list); //取记录总条数 PageInfo<TbUser> pageInfo=new PageInfo<>(list); result.setTotal(pageInfo.getTotal()); return result; }</span>
附:EUDataGridResult 类
<span style="font-family:KaiTi_GB2312;font-size:18px;">package Angel.pojo; import java.util.List; public class EUDataGridResult { private long total; private List<?> rows; public long getTotal() { return total; } public void setTotal(long total) { this.total = total; } public List<?> getRows() { return rows; } public void setRows(List<?> rows) { this.rows = rows; } }</span>
五、controller实现
<span style="font-family:KaiTi_GB2312;font-size:18px;">@RequestMapping("/user/findAll") @ResponseBody public EUDataGridResult getItemList(@RequestParam(defaultValue="1")Integer page, @RequestParam(defaultValue="10")Integer rows,HttpServletResponse response) throws IOException{ EUDataGridResult result=userService.selectAll(page, rows); return result; }</span>
六、JSP页面
<span style="font-family:KaiTi_GB2312;font-size:18px;"><%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%> <% String path = request.getContextPath(); String basePath = request.getScheme() + "://"+ request.getServerName() + ":" + request.getServerPort()+ path + "/"; %> <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <title>Insert title here</title> <link rel="stylesheet" type="text/css" href="js/jquery-easyui-1.4.1/themes/default/easyui.css" /> <link rel="stylesheet" type="text/css" href="js/jquery-easyui-1.4.1/themes/icon.css" /> <script type="text/javascript" src="js/jquery-easyui-1.4.1/jquery.min.js"></script> <script type="text/javascript" src="js/jquery-easyui-1.4.1/jquery.easyui.min.js"></script> <script type="text/javascript" src="js/jquery-easyui-1.4.1/locale/easyui-lang-zh_CN.js"></script> </head> <body> <table class="easyui-datagrid" id="itemList" title="用户列表" data-options="url:'<%=basePath %>user/findAll',pageSize:10,pagination:true"> <thead> <tr> <th data-options="field:'id',70">ID</th> <th data-options="field:'username',60">名称</th> <th data-options="field:'phone',70">电话</th> <th data-options="field:'email',70">邮箱</th> <th data-options="field:'created',130,align:'center'">创建日期</th> <th data-options="field:'updated',130,align:'center'">更新日期</th> </tr> </thead> </table> </body> </html></span>
七、总结
在最开始的时候,想自己写一个分页实现,但是,后来就发现有Mybatis已经封装好的分页插件,就简单的配置一下就可以使用了。到现在还是感觉,自己对已有资源的使用还不够,每次都闹着自己创新创造,但是,先向别人学习,这一步也很重要。
然后在实现的时候,先是和王高高弄这个分页插件,不知道为什么,她那儿弄了好久都没有成功,后来自己回来写demon,发现一下子就成功了。我想,肯定是少配置文件了!