Springboot中MyBatisplus使用IPage和Page分页 |
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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、代码结构
(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 { @Autowired private InterService interService; @GetMapping("/test") public IPage 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 page = new Page(currentPage, pageSize); IPage 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 @Service public class InterService { @Autowired private InterDao interDao; public IPage findlistpage(Page 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 { IPage selectMapsPage(Page page, QueryWrapper wrapper); }(4)XML SELECT * FROM INTER_COLLECTION(5)实体类 package com.xkcoding.rbac.security.entity; import lombok.Data; @Data public 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@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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