mybatis-plus中添加的依赖，使用的方法，分页查询中添加的拦截器

2023-09-10

mybatis-plus中添加的依赖

 <dependency>
            <groupId>com.baomidou</groupId>
            <artifactId>mybatis-plus-boot-starter</artifactId>
            <version>3.4.0</version>
</dependency>

使用的方法

DeptDao

package com.hh.dao;

import com.baomidou.mybatisplus.core.mapper.BaseMapper;
import com.hh.domain.Dept;
import org.apache.ibatis.annotations.Mapper;

/**
 * @author hh
 * @version 1.0
 * @DATE 2023-09-10 17:36:59
 */
@Mapper
public interface DeptDao extends BaseMapper<Dept> {
}

分页查询中添加的拦截器

MpConfig

package com.hh.config;

import com.baomidou.mybatisplus.extension.plugins.MybatisPlusInterceptor;
import com.baomidou.mybatisplus.extension.plugins.inner.PaginationInnerInterceptor;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

/**
 * @author hh
 * @version 1.0
 * @DATE 2023-09-10 18:07:25
 */
@Configuration
public class MpConfig {

    @Bean
    public MybatisPlusInterceptor mpInterceptor(){
        MybatisPlusInterceptor mp = new MybatisPlusInterceptor();
        mp.addInnerInterceptor(new PaginationInnerInterceptor());
        return mp;
    }
}

TestDeptDao

@Test
    public void testPage(){
        IPage page = new Page(1,2);
        deptDao.selectPage(page, null);
        System.out.println("当前页码值："+page.getCurrent());
        System.out.println("每页显示数："+page.getSize());
        System.out.println("一共多少页："+page.getPages());
        System.out.println("一共多少条数据："+page.getTotal());
        System.out.println("数据："+page.getRecords());
    }