自媒体素材管理——分页查询图片素材

  /**
     * 素材列表查询
     * @param dto
     * @return
     */
    @Override
    public ResponseResult findList(WmMaterialDto dto) {
        //1、检查参数
        dto.checkParam();
        //2、分页查询
        IPage page = new Page<>(dto.getPage(), dto.getSize());
        LambdaQueryWrapper<WmMaterial> lambdaQueryWrapper = new LambdaQueryWrapper<>();
        //是否收藏
        if(dto.getIsCollection() != null && dto.getIsCollection() == 1){
            lambdaQueryWrapper.eq(WmMaterial::getIsCollection, dto.getIsCollection());
        }
        //按照用户查询
        lambdaQueryWrapper.eq(WmMaterial::getUserId, WmThreadLocalUtil.getUser().getId());
        //按照时间倒叙插叙
        lambdaQueryWrapper.orderByDesc(WmMaterial::getCreatedTime);

        page = page(page, lambdaQueryWrapper);

        //3、返回
        ResponseResult responseResult = new PageResponseResult(dto.getPage(), dto.getSize(), (int)page.getTotal());
        responseResult.setData(page.getRecords());
        return responseResult;
    }

添加分页拦截器

package com.heima.wemedia;

import com.baomidou.mybatisplus.annotation.DbType;
import com.baomidou.mybatisplus.extension.plugins.MybatisPlusInterceptor;
import com.baomidou.mybatisplus.extension.plugins.inner.PaginationInnerInterceptor;
import org.mybatis.spring.annotation.MapperScan;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.client.discovery.EnableDiscoveryClient;
import org.springframework.context.annotation.Bean;


@SpringBootApplication
@EnableDiscoveryClient
@MapperScan("com.heima.wemedia.mapper")
public class WemediaApplication {

    public static void main(String[] args) {
        SpringApplication.run(WemediaApplication.class,args);
    }

    @Bean
    public MybatisPlusInterceptor mybatisPlusInterceptor(){
        MybatisPlusInterceptor mybatisPlusInterceptor = new MybatisPlusInterceptor();
        mybatisPlusInterceptor.addInnerInterceptor(new PaginationInnerInterceptor(DbType.MYSQL));
        return mybatisPlusInterceptor;
    }
}