Springboot中MyBatisplus使用IPage和Page分页的实例代码

一、需求：实现Springboot中MyBatisplus使用IPage和Page分页

二、技术：MyBatisplus的IPage和Page

三、实现

（1）Controller

package com.xkcoding.rbac.security.controller; import lombok.extern.slf4j.Slf4j;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.web.bind.annotation.*;import java.util.Map;import com.baomidou.mybatisplus.core.metadata.IPage;import com.baomidou.mybatisplus.extension.plugins.pagination.Page;import com.xkcoding.rbac.security.service.InterService; @Slf4j@RestController@RequestMapping('/inter')public class InterController {@Autowiredprivate InterService interService; @GetMapping('/test')public IPage<Map> test() {Integer currentPage = 1; //当前页数：显示第一页数据Integer pageSize = 2; //每页显示多少：每页显示2条数据Page<Map> page = new Page<Map>(currentPage, pageSize);IPage<Map> findList = interService.findlistpage(page);return findList;}}

（2）Service

package com.xkcoding.rbac.security.service; import java.util.Map;import org.springframework.stereotype.Service;import com.baomidou.mybatisplus.core.metadata.IPage;import com.baomidou.mybatisplus.extension.plugins.pagination.Page;import com.xkcoding.rbac.security.dao.InterDao;import org.springframework.beans.factory.annotation.Autowired;import lombok.extern.slf4j.Slf4j; @Slf4j@Servicepublic class InterService {@Autowiredprivate InterDao interDao; public IPage<Map> findlistpage(Page<Map> page) {return interDao.selectMapsPage(page, null);}}

（3）Dao

package com.xkcoding.rbac.security.dao; import java.util.List;import java.util.Map;import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;import com.baomidou.mybatisplus.core.mapper.BaseMapper;import com.baomidou.mybatisplus.core.metadata.IPage;import com.baomidou.mybatisplus.extension.plugins.pagination.Page;import com.xkcoding.rbac.security.entity.Permission; public interface InterDao extends BaseMapper<Permission> {IPage<Map> selectMapsPage(Page<Map> page, QueryWrapper<List<Map<String, Object>>> wrapper);}

（4）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.xkcoding.rbac.security.dao.InterDao'> <select resultType='java.util.Map' parameterType='java.util.Map'>SELECT * FROM INTER_COLLECTION</select></mapper>

（5）实体类

package com.xkcoding.rbac.security.entity; import lombok.Data; @Datapublic class Inter { private String id; private String interName; private String mode; private String selectStatement; private String insertStatement; private String updateStatement; private String interEnable; private String interParam; private String interType; private String tableName;}3、运行结果

以上用到的 lombok 注解：

@Data：注解在类上；提供类所有属性的 getting 和 setting 方法，此外还提供了equals、canEqual、hashCode、toString 方法@Slf4j：注解在类上；为类提供一个 属性名为log 的 log4j 日志对象

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