diff --git a/Learn.Archives.API/Controllers/ExamClassInfoController.cs b/Learn.Archives.API/Controllers/ExamClassInfoController.cs
index 9eb9741..ed75abf 100644
--- a/Learn.Archives.API/Controllers/ExamClassInfoController.cs
+++ b/Learn.Archives.API/Controllers/ExamClassInfoController.cs
@@ -1,6 +1,7 @@
 using Learn.Archives.API.Controllers.Dto;
 using Learn.Archives.API.Expand;
 using Learn.Archives.Core.Common;
+using Learn.Archives.Core.Common.Expand;
 using Learn.Archives.Core.Model;
 using Learn.Archives.Core.Model.Dto;
 using Microsoft.AspNetCore.Authorization;
@@ -84,6 +85,7 @@ namespace Learn.Archives.API.Controllers
             var insertUserInfo = new List<ExamUserInfo>();
             var insertClassInfo = new List<ExamClassInfo>();
             var db = schoolService.Context;
+            SqlSugarExpand.SetDbAop(db);
             foreach (var schoolArr in dataList.GroupBy(s => s.School))
             {
                 var school = await schoolService.GetFirstAsync(s => s.Name == schoolArr.Key);
@@ -94,6 +96,7 @@ namespace Learn.Archives.API.Controllers
                 var classArr = await db.Queryable<Classes>().Where(c => c.SchoolId == school.Id &&
                         c.GradeLevel == gradeInfo.GradeLevel &&
                         c.GraduationYear == gradeInfo.GradeYear && !c.DeleteState).ToArrayAsync();
+                
                 var userDic = await db.Queryable<School>()
                     .LeftJoin<Classes>((s, c) => c.SchoolId == s.Id)
                     .LeftJoin<Position>((s, c, p) => p.ClassId == c.Id)
@@ -103,6 +106,7 @@ namespace Learn.Archives.API.Controllers
                         s.Id == school.Id &&
                         c.GradeLevel == gradeInfo.GradeLevel &&
                         c.GraduationYear == gradeInfo.GradeYear &&
+                        u.UserType == UserTypeEnum.学生.GetHashCode() &&
                         s.Enable && p.Enable && pr.Enable &&
                         !p.DeleteState && !c.DeleteState && !u.DeleteState  && !s.DeleteState)
                     .Select((s, c, p, pr, u) => new
diff --git a/Learn.Archives.API/Controllers/StudentController.cs b/Learn.Archives.API/Controllers/StudentController.cs
index d0c9a20..60a9b1f 100644
--- a/Learn.Archives.API/Controllers/StudentController.cs
+++ b/Learn.Archives.API/Controllers/StudentController.cs
@@ -103,7 +103,7 @@ namespace Learn.Archives.API.Controllers
                 item.AmountRelief = ex.AmountRelief;
                 item.ReliefApplication = ex.ReliefApplication;
                 item.Remark = ex.Remark;
-                item.ReliefType = ex.ReliefType.ToString();
+                item.ReliefType = ex?.ReliefType?.ToString();
                 item.ReliefSubTime = ex.ReliefSubTime?.ToString("yyyy-MM-dd") ?? string.Empty;
 
             }