From 5d03eeecea96a310b339f7b8015c69169ffbf9f3 Mon Sep 17 00:00:00 2001
From: 18631081161 <2088094923@qq.com>
Date: Thu, 29 Jan 2026 15:50:30 +0800
Subject: [PATCH] +1

---
 .../src/XiangYi.Application/Services/InteractService.cs   | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/server/src/XiangYi.Application/Services/InteractService.cs b/server/src/XiangYi.Application/Services/InteractService.cs
index 1979f4c..2e07c41 100644
--- a/server/src/XiangYi.Application/Services/InteractService.cs
+++ b/server/src/XiangYi.Application/Services/InteractService.cs
@@ -856,6 +856,7 @@ public class InteractService : IInteractService
         // 统计各类互动的新增数量
         // 看过我：统计首次查看时间（CreateTime）在上次已读之后的新用户数量
         // 这样同一用户多次查看只计算一次（首次查看时）
+        // 注意：使用 > 而不是 >= 来避免边界情况，但需要在标记已读时加1秒的缓冲
         var viewedMeCount = await _viewRepository.CountAsync(v => 
             v.TargetUserId == userId && v.CreateTime > user.LastViewedMeReadTime);
         
@@ -882,7 +883,8 @@ public class InteractService : IInteractService
             throw new BusinessException(ErrorCodes.UserNotFound, "用户不存在");
         }
 
-        var now = DateTime.Now;
+        // 加1秒缓冲，避免因时间精度问题导致刚标记已读的记录仍被统计为未读
+        var now = DateTime.Now.AddSeconds(1);
         
         switch (type.ToLower())
         {
@@ -899,10 +901,10 @@ public class InteractService : IInteractService
                 throw new BusinessException(ErrorCodes.InvalidParameter, "无效的互动类型");
         }
 
-        user.UpdateTime = now;
+        user.UpdateTime = DateTime.Now;
         await _userRepository.UpdateAsync(user);
 
-        _logger.LogInformation("标记互动已读: UserId={UserId}, Type={Type}", userId, type);
+        _logger.LogInformation("标记互动已读: UserId={UserId}, Type={Type}, ReadTime={ReadTime}", userId, type, now);
     }
 
     #endregion