From 01c83aaec30a3d191d03fdcda1231b552d1aeafa Mon Sep 17 00:00:00 2001
From: tanglong <842690096@qq.com>
Date: Tue, 10 Mar 2026 10:54:31 +0800
Subject: [PATCH] =?UTF-8?q?=E8=A7=A3=E6=9E=90=E6=97=B6=E9=97=B4?=
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---
 YD_AllHeartRates.Api/Mqtt/MqttBackgroundService.cs | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/YD_AllHeartRates.Api/Mqtt/MqttBackgroundService.cs b/YD_AllHeartRates.Api/Mqtt/MqttBackgroundService.cs
index 6845adc..701a9dc 100644
--- a/YD_AllHeartRates.Api/Mqtt/MqttBackgroundService.cs
+++ b/YD_AllHeartRates.Api/Mqtt/MqttBackgroundService.cs
@@ -144,11 +144,14 @@ namespace YD_AllHeartRates.Api.Mqtt
                         var payload = JsonSerializer.Deserialize<BlePayload>(msg.Payload, _jsonOpt);
                         if (payload == null || payload.devices == null || payload.devices.Count == 0) return;
 
-                        var scoreTime = DateTime.ParseExact(payload.send_time, "yyyy-MM-dd HH:mm:ss", CultureInfo.InvariantCulture);
+                        DateTime scoreTime;
 
-                        // 如果时间 < SQL Server datetime 最小值，则用当前时间代替
-                        if (scoreTime < (DateTime)System.Data.SqlTypes.SqlDateTime.MinValue)
+                        if (string.IsNullOrWhiteSpace(payload.send_time)
+                            || !DateTime.TryParseExact(payload.send_time, "yyyy-MM-dd HH:mm:ss",
+                                CultureInfo.InvariantCulture, DateTimeStyles.None, out scoreTime)
+                            || scoreTime < (DateTime)System.Data.SqlTypes.SqlDateTime.MinValue)
                         {
+                            // 解析失败或时间非法 → 使用当前时间
                             scoreTime = DateTime.Now;
                         }