添加项目文件。

GroupService.WebApi/Controllers/Group/GroupCreateRequest.cs

@@ -0,0 +1,18 @@
+using FluentValidation;
+
+namespace GroupService.WebApi.Controllers.Group
+{
+    public class GroupCreateRequest
+    {
+        public string? Name { get; set; }
+    }
+
+    public class GroupCreateRequestValidator : AbstractValidator<GroupCreateRequest>
+    {
+        public GroupCreateRequestValidator()
+        {
+            RuleFor(r => r.Name)
+                .MaximumLength(20);
+        }
+    }
+}