springboot整合mybatis-plus 实现分页查询功能

@Configuration
public class MybatisPlusConfig {

  @Bean
  public PaginationInterceptor paginationInterceptor(){
    return new PaginationInterceptor();
  }
}

 post /article/search/{page}/{size}

@PostMapping("search/{page}/{size}")
  public Result findByPage(@PathVariable Integer page,
               @PathVariable Integer size,
              @RequestBody Map<String,Object> map){

    //根据条件分页查询
    Page<Article> pageDate = articleService.findByPage(map,page,size);
    //封装分页返回对象
    PageResult<Article> pageResult =new PageResult<>(
        pageDate.getTotal(),pageDate.getRecords()
    );

    return new Result(true,StatusCode.OK,"查询分页成功",pageResult);
  }

public Page<Article> findByPage(Map<String, Object> map, Integer page, Integer size) {
    //设置查询条件
    EntityWrapper<Article> wrapper =new EntityWrapper<>();
    Set<String> keySet = map.keySet();
    for (String key : keySet) {
//      if (map.get(key) !=null){
//        wrapper.eq(key,map.get(key));
//      }
      wrapper.eq(map.get(key) !=null,key,map.get(key));
    }
    //设置分页参数
    Page<Article> pageData =new Page<>(page,size);

    //第一个是分页参数,第二个是查询条件
    List<Article> list = articleDao.selectPage(pageData, wrapper);

    pageData.setRecords(list);

    return pageData;
  }