diff --git a/Tiobon.Core.Api/Controllers/Base/BaseController.cs b/Tiobon.Core.Api/Controllers/Base/BaseController.cs
index d881be0d..d5a6fb67 100644
--- a/Tiobon.Core.Api/Controllers/Base/BaseController.cs
+++ b/Tiobon.Core.Api/Controllers/Base/BaseController.cs
@@ -76,12 +76,11 @@ public class BaseController<IServiceBase, TEntity, TEntityDto, TInsertDto, TEdit
     [HttpPost("Query/{Id}")]
     public virtual async Task<ServiceResult<TEntityDto>> QueryById(long Id)
     {
-        var entity1 = await InvokeServiceAsync("QueryById", [Id]);
-        var entity = ConvertTo<TEntityDto>(entity1);
+        var entity = await InvokeServiceAsync("QueryById", [Id]); 
         if (entity is null)
             return Failed<TEntityDto>("获取失败");
         else
-            return Success<TEntityDto>(entity, "获取成功");
+            return Success<TEntityDto>(ConvertTo<TEntityDto>(entity), "获取成功");
     }
     /// <summary>
     ///  查询菜单表单信息
diff --git a/Tiobon.Core.Model/Base/Ghre/Ghre_ExamPaperConfig.Dto.Base.cs b/Tiobon.Core.Model/Base/Ghre/Ghre_ExamPaperConfig.Dto.Base.cs
index 5df7acdf..9ac55c02 100644
--- a/Tiobon.Core.Model/Base/Ghre/Ghre_ExamPaperConfig.Dto.Base.cs
+++ b/Tiobon.Core.Model/Base/Ghre/Ghre_ExamPaperConfig.Dto.Base.cs
@@ -87,7 +87,7 @@ namespace Tiobon.Core.Model.Models
         /// <summary>
         /// 预留字段1
         /// </summary>
-        [Display(Name = "Reverse1"), Description("预留字段1"), MaxLength(1000, ErrorMessage = "预留字段1 不能超过 1000 个字符")]
+        [Display(Name = "Reverse1"), Description("预留字段1")]
         public string Reverse1 { get; set; }
 
         /// <summary>
diff --git a/Tiobon.Core.Model/Models/Ghre/Ghre_ExamPaperConfig.cs b/Tiobon.Core.Model/Models/Ghre/Ghre_ExamPaperConfig.cs
index b327dfdf..90bdfc43 100644
--- a/Tiobon.Core.Model/Models/Ghre/Ghre_ExamPaperConfig.cs
+++ b/Tiobon.Core.Model/Models/Ghre/Ghre_ExamPaperConfig.cs
@@ -86,7 +86,7 @@ namespace Tiobon.Core.Model.Models
         /// <summary>
         /// 预留字段1
         /// </summary>
-        [Display(Name = "Reverse1"), Description("预留字段1"), MaxLength(1000, ErrorMessage = "预留字段1 不能超过 1000 个字符")]
+        [Display(Name = "Reverse1"), Description("预留字段1")]
         public string Reverse1 { get; set; }
 
         /// <summary>
diff --git a/Tiobon.Core.Services/Ghre/Ghre_ExamPaperServices.cs b/Tiobon.Core.Services/Ghre/Ghre_ExamPaperServices.cs
index 93d48f05..150be514 100644
--- a/Tiobon.Core.Services/Ghre/Ghre_ExamPaperServices.cs
+++ b/Tiobon.Core.Services/Ghre/Ghre_ExamPaperServices.cs
@@ -64,8 +64,11 @@ public class Ghre_ExamPaperServices : BaseServices<Ghre_ExamPaper, Ghre_ExamPape
     public override async Task<Ghre_ExamPaperDto> QueryById(object objId)
     {
         var entity = await base.QueryById(objId);
-        entity.SetMethodLabel = await GetParaLabel("SetMethod", entity.SetMethod);
-        entity.ScoreMethodLabel = await GetParaLabel("ScoreMethod", entity.ScoreMethod);
+        if (entity != null)
+        {
+            entity.SetMethodLabel = await GetParaLabel("SetMethod", entity.SetMethod);
+            entity.ScoreMethodLabel = await GetParaLabel("ScoreMethod", entity.ScoreMethod);
+        }
 
         return entity;
     }