diff --git a/IRaCIS.Core.API/_ServiceExtensions/NewtonsoftJson/NullToEmptyStringResolver.cs b/IRaCIS.Core.API/_ServiceExtensions/NewtonsoftJson/NullToEmptyStringResolver.cs
index 4a636d653..f6330817f 100644
--- a/IRaCIS.Core.API/_ServiceExtensions/NewtonsoftJson/NullToEmptyStringResolver.cs
+++ b/IRaCIS.Core.API/_ServiceExtensions/NewtonsoftJson/NullToEmptyStringResolver.cs
@@ -101,12 +101,25 @@ namespace IRaCIS.Core.API
         public void SetValue(object target, object value)
         {
 
-            _memberInfo.SetValue(target, value);
 
 
             //// 会影响 string?  传递null 变为""
 
-            //if (_memberInfo.PropertyType == typeof(string))
+            var isNullable1 = _memberInfo.CustomAttributes.Any(a => a.AttributeType.Name == "NullableAttribute");
+
+
+            if (_memberInfo.PropertyType == typeof(string) &&  isNullable1 == false)
+            {
+                //如果不处理 前段传递null  string不会接收，说前段没传递会验证报错
+                _memberInfo.SetValue(target, value == null ? string.Empty : value);
+            }
+            else
+            {
+                _memberInfo.SetValue(target, value);
+
+            }
+
+            //if ()
             //{
             //    //去掉前后空格
             //    _memberInfo.SetValue(target, value == null ? string.Empty : value.ToString() == string.Empty ? value : value/*.ToString().Trim()*/);