MybatisPlus的分页查询

1. 此处是在MybatisPlus的乐观锁的代码上进行修改的
2. 添加分页的组件

package com.pning.conf;

import com.baomidou.mybatisplus.extension.plugins.OptimisticLockerInterceptor;
import com.baomidou.mybatisplus.extension.plugins.PaginationInterceptor;
import com.baomidou.mybatisplus.extension.plugins.pagination.optimize.JsqlParserCountOptimize;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

@EnableAutoConfiguration
@Configuration
public class MybatisPlusConfig {
	//乐观锁
    @Bean
    public OptimisticLockerInterceptor optimisticLockerInterceptor() {
        return new OptimisticLockerInterceptor();
    }
    //分页
    @Bean
    public PaginationInterceptor paginationInterceptor() {
        return new PaginationInterceptor();
    }
}

3. 测试

 //分页的相关
    @Test
    public void selectPage(){
        Page page = new Page(1,5);//当前第几页，一页查几个
        userMapper.selectPage(page,null);//参数：Page，Wrapper
        page.getRecords().forEach(System.out::println);
        System.out.println("一共有多少条"+page.getTotal());
        System.out.println("查询到的数据"+page.getRecords());
    }

4. 代码自取