diff --git a/Src/Dlhis.Basic/Organization/Filters/IgnoreDataCaseAttribute.cs b/Src/Dlhis.Basic/Organization/Filters/IgnoreDataCaseAttribute.cs
index 7af59c1e..a86442cf 100644
--- a/Src/Dlhis.Basic/Organization/Filters/IgnoreDataCaseAttribute.cs
+++ b/Src/Dlhis.Basic/Organization/Filters/IgnoreDataCaseAttribute.cs
@@ -17,21 +17,22 @@ public class IgnoreDataCaseAttribute : Attribute, IAsyncResultFilter
             var type = result.Value?.GetType();
             if (type.IsGenericType && type.IsAssignableTo(typeof(IApiResult)))
             {
-                var apiResult = result.Value as DefaultApiResult<object>;
-
-                var body = new
+                if (result.Value is DefaultApiResult<object> apiResult && !context.HttpContext.Response.HasStarted)
                 {
-                    code = 200,
-                    msg = "操作成功",
-                    data = apiResult.Data
-                };
+                    var body = new
+                    {
+                        code = 200,
+                        msg = "操作成功",
+                        data = apiResult.Data
+                    };
 
-                var json = JsonConvert.SerializeObject(body);
-                var bytes = Encoding.UTF8.GetBytes(json);
+                    var json = JsonConvert.SerializeObject(body);
+                    var bytes = Encoding.UTF8.GetBytes(json);
 
-                context.HttpContext.Response.ContentType = "application/json";
-                context.HttpContext.Response.ContentLength = bytes.Length;
-                await context.HttpContext.Response.BodyWriter.WriteAsync(bytes);
+                    context.HttpContext.Response.ContentType = "application/json";
+                    context.HttpContext.Response.ContentLength = bytes.Length;
+                    await context.HttpContext.Response.BodyWriter.WriteAsync(bytes);
+                }
             }
         }