PagedResponse.cs 2.21 KB
namespace Rcs.Application.Common
{
    /// <summary>
    /// 分页响应类
    /// </summary>
    /// <typeparam name="T">数据类型</typeparam>
    public class PagedResponse<T> : ApiResponse<IEnumerable<T>>
    {
        /// <summary>
        /// 分页信息
        /// </summary>
        public PageInfo PageInfo { get; set; }

        /// <summary>
        /// 创建分页成功响应
        /// </summary>
        /// <param name="data">数据列表</param>
        /// <param name="pageNumber">当前页码</param>
        /// <param name="pageSize">每页大小</param>
        /// <param name="totalCount">总记录数</param>
        /// <param name="message">消息</param>
        /// <returns></returns>
        public static PagedResponse<T> Successful(
            IEnumerable<T> data,
            int pageNumber,
            int pageSize,
            int totalCount,
            string message = "查询成功")
        {
            return new PagedResponse<T>
            {
                Success = true,
                Code = 200,
                Message = message,
                Data = data,
                PageInfo = new PageInfo
                {
                    PageNumber = pageNumber,
                    PageSize = pageSize,
                    TotalCount = totalCount,
                    TotalPages = (int)Math.Ceiling(totalCount / (double)pageSize)
                }
            };
        }
    }

    /// <summary>
    /// 分页信息
    /// </summary>
    public class PageInfo
    {
        /// <summary>
        /// 当前页码
        /// </summary>
        public int PageNumber { get; set; }

        /// <summary>
        /// 每页大小
        /// </summary>
        public int PageSize { get; set; }

        /// <summary>
        /// 总记录数
        /// </summary>
        public int TotalCount { get; set; }

        /// <summary>
        /// 总页数
        /// </summary>
        public int TotalPages { get; set; }

        /// <summary>
        /// 是否有上一页
        /// </summary>
        public bool HasPrevious => PageNumber > 1;

        /// <summary>
        /// 是否有下一页
        /// </summary>
        public bool HasNext => PageNumber < TotalPages;
    }
}