diff --git a/IRaCIS.Core.API/_ServiceExtensions/NewtonsoftJson/JSONTimeZoneConverter.cs b/IRaCIS.Core.API/_ServiceExtensions/NewtonsoftJson/JSONTimeZoneConverter.cs
index 5e12ded31..cd4e942e8 100644
--- a/IRaCIS.Core.API/_ServiceExtensions/NewtonsoftJson/JSONTimeZoneConverter.cs
+++ b/IRaCIS.Core.API/_ServiceExtensions/NewtonsoftJson/JSONTimeZoneConverter.cs
@@ -50,18 +50,10 @@ namespace IRaCIS.Core.API
 
             DateTime dateTime;
 
-            if (reader.ValueType == typeof(string))
+            if (DateTime.TryParse((string)reader.Value, out dateTime) == false)
             {
-                if (DateTime.TryParse((string)reader.Value, out dateTime) == false)
-                {
-                    throw new JsonSerializationException("Unable to parse DateTime value.");
-                }
+                return null;
             }
-            else
-            {
-                dateTime = (DateTime)reader.Value;
-            }
-           
 
             // 将客户端时间转换为服务器时区的时间
             var serverZoneTime = TimeZoneInfo.ConvertTime(dateTime, _clientTimeZone, TimeZoneInfo.Local);
diff --git a/IRaCIS.Core.Application/BackGroundJob/IRaCISCHangfireJob.cs b/IRaCIS.Core.Application/BackGroundJob/IRaCISCHangfireJob.cs
index 39a80d307..984e30ce5 100644
--- a/IRaCIS.Core.Application/BackGroundJob/IRaCISCHangfireJob.cs
+++ b/IRaCIS.Core.Application/BackGroundJob/IRaCISCHangfireJob.cs
@@ -136,16 +136,23 @@ namespace IRaCIS.Application.Services.BackGroundJob
                 throw new BusinessValidationFailedException(StaticData.International("IRaCISCHangfireJob_FileNotFound"));
             }
 
-            FileSystemWatcher watcher = new FileSystemWatcher(Path.GetDirectoryName(filePath), Path.GetFileName(filePath));
+            var watcher = new FileSystemWatcher
+            {
+                Path = Path.GetDirectoryName(filePath)!,
+                NotifyFilter = NotifyFilters.LastWrite | NotifyFilters.Size|NotifyFilters.LastAccess,
+                Filter = Path.GetFileName(filePath),
+                EnableRaisingEvents = true,
+                
+            };
+
             watcher.Changed += (sender, e) => LoadJsonFile(filePath);
-            watcher.EnableRaisingEvents = true;
 
         }
 
 
         private void LoadJsonFile(string filePath)
         {
-
+            Console.WriteLine("刷新json内存数据");
             IConfigurationBuilder builder = new ConfigurationBuilder().AddJsonFile(filePath,false,true);
 
             IConfigurationRoot enConfiguration = builder.Build();
diff --git a/IRaCIS.Core.Application/Service/Visit/SubjectService.cs b/IRaCIS.Core.Application/Service/Visit/SubjectService.cs
index 539cb3ba7..d9b8039c3 100644
--- a/IRaCIS.Core.Application/Service/Visit/SubjectService.cs
+++ b/IRaCIS.Core.Application/Service/Visit/SubjectService.cs
@@ -45,8 +45,6 @@ namespace IRaCIS.Application.Services
             };
 
 
-
-
             Subject? mapedSubject = null;
 
             if (subjectCommand.Id == null) //insert
@@ -64,8 +62,6 @@ namespace IRaCIS.Application.Services
 
             }
 
-
-
             await _subjectRepository.SaveChangesAsync();
 
             return ResponseOutput.Ok(mapedSubject.Id.ToString());