试试

WeChatApplet/Services/Impl/FrameworkService.cs

@@ -1,4 +1,5 @@
 using AutoMapper;
+using Microsoft.EntityFrameworkCore;
 using YD_WeChatApplet.Api.Services.Interface;
 using YD_WeChatApplet.Api.SmartSportsEntitys;
 using YD_WeChatApplet.Api.Utilities;
@@ -25,11 +26,22 @@ namespace YD_WeChatApplet.Api.Services.Impl
         /// <returns></returns>
         public async Task<bool> ScanCodeLogin(string code)
         {
-            var entity = new Ai_ScanCodeLogin()
+            var schoolCode = UserLoginContext.Current.SchoolCode;
+            var teacherId = UserLoginContext.Current.UserId;
+
+            // 先检查是否已存在相同的记录
+            var exist = await _sportsContext.Ai_ScanCodeLogin
+                .AnyAsync(x => x.Code == code && x.SchoolCode == schoolCode && x.TeacherId == teacherId);
+
+            if (exist)
+                return true; // 已存在，认为成功
+
+            // 不存在则添加
+            var entity = new Ai_ScanCodeLogin
             {
                 Code = code,
-                SchoolCode = UserLoginContext.Current.SchoolCode,
-                TeacherId = UserLoginContext.Current.UserId,
+                SchoolCode = schoolCode,
+                TeacherId = teacherId,
                 TeacherPhoneNo = UserLoginContext.Current.PhoneNo,
                 CreateDate = DateTime.Now
             };
@@ -37,5 +49,6 @@ namespace YD_WeChatApplet.Api.Services.Impl
             await _sportsContext.AddAsync(entity);
             return await _sportsContext.SaveChangesAsync() > 0;
         }
+
     }
 }