diff --git a/Src/CodeSpirit.ExamApi/Dtos/ExamSetting/ExamSettingDto.cs b/Src/CodeSpirit.ExamApi/Dtos/ExamSetting/ExamSettingDto.cs
index 5488a2d5c4f41abf71bba1a7ee38879ad01c1210..770354f4b614850ab43b766d48d294b4d68043b5 100644
--- a/Src/CodeSpirit.ExamApi/Dtos/ExamSetting/ExamSettingDto.cs
+++ b/Src/CodeSpirit.ExamApi/Dtos/ExamSetting/ExamSettingDto.cs
@@ -98,6 +98,12 @@ public class ExamSettingDto
     [ListColumn(title: "name", subTitle: "description")]
     public List<StudentGroupDto> StudentGroups { get; set; } = [];
 
+    /// <summary>
+    /// 分组ID列表
+    /// </summary>
+    [IgnoreColumn]
+    public List<long> StudentGroupIds { get; set; } = new List<long>();
+
     /// <summary>
     /// 创建时间
     /// </summary>
diff --git a/Src/CodeSpirit.ExamApi/Dtos/ExamSetting/UpdateExamSettingDto.cs b/Src/CodeSpirit.ExamApi/Dtos/ExamSetting/UpdateExamSettingDto.cs
index 1cc9609040ccaf8bfdc5eda45dba0f98afe81431..bd661d6f64540cf5f76a055f0075f48ea53bb04a 100644
--- a/Src/CodeSpirit.ExamApi/Dtos/ExamSetting/UpdateExamSettingDto.cs
+++ b/Src/CodeSpirit.ExamApi/Dtos/ExamSetting/UpdateExamSettingDto.cs
@@ -91,7 +91,7 @@ public class UpdateExamSettingDto
     [DisplayName("允许切屏次数")]
     [Range(0, 10, ErrorMessage = "允许切屏次数必须在0-10次之间")]
     public int AllowedScreenSwitchCount { get; set; }
-    
+
     /// <summary>
     /// 参加考试的学生分组ID列表
     /// </summary>
@@ -108,5 +108,5 @@ public class UpdateExamSettingDto
         Clearable = true,
         Placeholder = "请选择参加考试的学生分组"
     )]
-    public List<long> StudentGroupIds { get; set; } = [];
+    public List<long> StudentGroupIds { get; set; } = new List<long>();
 } 
\ No newline at end of file
diff --git a/Src/CodeSpirit.ExamApi/Dtos/Student/UpdateStudentDto.cs b/Src/CodeSpirit.ExamApi/Dtos/Student/UpdateStudentDto.cs
index 14bf4b05a12b93d1f9699ad19f3bfd13d9da646f..7c3f09331d378660380009b721d2e929c1d7c23e 100644
--- a/Src/CodeSpirit.ExamApi/Dtos/Student/UpdateStudentDto.cs
+++ b/Src/CodeSpirit.ExamApi/Dtos/Student/UpdateStudentDto.cs
@@ -58,12 +58,12 @@ public class UpdateStudentDto
         Source = "${ROOT_API}/api/exam/StudentGroups",
         ValueField = "id",
         LabelField = "name",
-                    Multiple = true,
-            JoinValues = false,
-            ExtractValue = true,
-            Searchable = true,
-            Clearable = true,
-            Placeholder = "请选择学生组"
+        Multiple = true,
+        JoinValues = false,
+        ExtractValue = true,
+        Searchable = true,
+        Clearable = true,
+        Placeholder = "请选择学生组"
     )]
     public List<long> StudentGroupIds { get; set; } = new List<long>();
 } 
\ No newline at end of file
diff --git a/Src/CodeSpirit.ExamApi/MappingProfiles/ExamSettingProfile.cs b/Src/CodeSpirit.ExamApi/MappingProfiles/ExamSettingProfile.cs
index a0e2d7add8d72defdd9d90aa8ad927975f98e5fd..3a0d8e6f572c22ab26bd595fc524f70b64ad18f0 100644
--- a/Src/CodeSpirit.ExamApi/MappingProfiles/ExamSettingProfile.cs
+++ b/Src/CodeSpirit.ExamApi/MappingProfiles/ExamSettingProfile.cs
@@ -30,7 +30,11 @@ public class ExamSettingProfile : Profile
 
         CreateMap<ExamSetting, ExamSettingDto>()
             .ForMember(dest => dest.ExamPaperName, opt => opt.MapFrom(src => src.ExamPaper.Name))
-            .ForMember(dest => dest.StudentGroups, opt => opt.MapFrom(src => src.StudentGroups.Select(x => x.StudentGroup)));
+            .ForMember(dest => dest.StudentGroups, opt => opt.MapFrom(src => src.StudentGroups.Select(x => x.StudentGroup)))
+            .ForMember(dest => dest.StudentGroupIds, opt => opt.MapFrom(src =>
+                src.StudentGroups != null ?
+                src.StudentGroups.Select(x => x.StudentGroup.Id).ToList() :
+                new List<long>()));
 
         CreateMap<CreateExamSettingDto, ExamSetting>();
         CreateMap<UpdateExamSettingDto, ExamSetting>();
diff --git a/Src/CodeSpirit.IdentityApi/Services/AuthService.cs b/Src/CodeSpirit.IdentityApi/Services/AuthService.cs
index aab952937f7ef98c80139c221685d556daba3522..c99293dbd8bf0e68b5a7d06fc67ff6044f6fe7e2 100644
--- a/Src/CodeSpirit.IdentityApi/Services/AuthService.cs
+++ b/Src/CodeSpirit.IdentityApi/Services/AuthService.cs
@@ -243,7 +243,7 @@ namespace CodeSpirit.IdentityApi.Services
                 issuer: _issuer,
                 audience: _audience,
                 claims: claims,
-                expires: DateTime.Now.AddMinutes(_expirationMinutes),
+                expires: DateTime.Now.AddMinutes(180),
                 signingCredentials: credentials
             );