添加项目文件。

test/Basic/Controllers/DataAnnotationsController.cs

@@ -0,0 +1,55 @@
+using System;
+using System.ComponentModel.DataAnnotations;
+using Microsoft.AspNetCore.Mvc;
+
+namespace Basic.Controllers
+{
+    [Produces("application/json")]
+    public class DataAnnotationsController : Controller
+    {
+        [HttpPost("payments/authorize")]
+        [ProducesResponseType(200, Type = typeof(string))]
+        public IActionResult AuthorizePayment([FromBody, Required]PaymentRequest request)
+        {
+            if (!ModelState.IsValid)
+                return new BadRequestObjectResult(ModelState);
+
+            return new ObjectResult("123456");
+        }
+
+        [HttpPut("payments/{paymentId}/cancel")]
+        public IActionResult CancelPayment([MinLength(6)]string paymentId)
+        {
+            return Ok();
+        }
+    }
+
+    public class PaymentRequest
+    {
+        [Required]
+        public Transaction Transaction { get; set; }
+
+        [Required]
+        public CreditCard CreditCard { get; set; }
+    }
+
+    public class Transaction
+    {
+        [Required]
+        public decimal Amount { get; set; }
+
+        public string Note { get; set; }
+    }
+
+    public class CreditCard
+    {
+        [Required, RegularExpression("^[3-6]?\\d{12,15}$")]
+        public string CardNumber { get; set; }
+
+        [Required, Range(1, 12)]
+        public int ExpMonth { get; set; }
+
+        [Required, Range(14, 99)]
+        public int ExpYear { get; set; }
+    }
+}