IM/backend/IM_API/Dtos/Message/MessageQueryDto.cs
nanxun 58bc8b4b5a 前端:
1、优化消息排序逻辑
2、新增加载历史消息
3、修复已知问题
后端:
1、优化消息排序逻辑
2、增加用户信息缓存机制
3、修改日期类型为DateTimeOffset改善时区信息丢失问题
3、修复了已知问题
数据库:
1、新增SequenceId字段用于消息排序
2、新增ClientMsgId字段用于客户端消息回执
2026-02-07 22:37:56 +08:00

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using System.ComponentModel.DataAnnotations;
namespace IM_API.Dtos.Message
{
public class MessageQueryDto
{
[Required(ErrorMessage = "会话ID必填")]
public int ConversationId { get; set; }
// 锚点序号(如果为空,说明是第一次进聊天框,拉最新的)
public long? Cursor { get; set; }
// 查询方向0 - 查旧(Before), 1 - 查新(After)
public int Direction { get; set; } = 0;
public int Limit { get; set; } = 20;
}
}