ASP.NET Core MVC/WebAPi 模型绑定

  public class Person
     {
         public string Name { get; set; }
         public string Address { get; set; }
         public int Age { get; set; }
     }

 $("#btnJson").on("click", function () {
                 var datajson = { Name: "Jeffcky", Age: 24, Address: "湖南省" };
                 console.log(datajson);
                 $.ajax({
                     url: "../api/WebAPi/PostPerson",
                     contentType: "application/x-www-form-urlencoded;charset=utf-8",
                     dataType: "json",
                     type: "post",
                     data: datajson,
                     success: function (data) {
                         console.log(data);
                     }
                 });
             });

     [HttpPost]
         public IActionResult PostPerson([FromBody]Person p)
         {
             return Json(p);
         }