MyBatis-pageHelper分页插件

<dependency>
    <groupId>com.github.pagehelper</groupId>
     <artifactId>pagehelper</artifactId>
    <version>5.1.2</version>
</dependency>

public Result<PageInfo<Shipping>> list(Integer userId,Integer pageNum,Integer pageSize){
        PageHelper.startPage(pageNum, pageSize);
        List<Shipping> list = shippingMapper.list(userId);
        PageInfo<Shipping> pageInfo = new PageInfo<>(list);
        return ServerResponse.createBySuccess(pageInfo);
        
    }