webapi只post数据

<form id="form1" method="post" action="http://10.100.22.54:8095/api/BookChapters/PostBookChapter">
        <input type="text" name="Number" id="txtNumber" /><br />
        <input type="text" name="Title" id="txtTitle" /><br />
        <input type="text" name="Pages" id="txtPages" /><br />
        <input type="submit" value="提交"/>
    </form>

或者

$("#btnPost").on("click", function () {
                var u = {};
                u["Number"] = 1000; u["Title"] = "wjl"; u["Pages"]=120
                $.ajax({
                    url: "http://10.100.22.54:8095/api/BookChapters/PostBookChapter",
                    type: "post",
                    dataType: "json",
                    data: u,
                    success: function (d) {

                    },
                    error: function (ex) {

                    }
                })
            })

using System.Collections;
using System.Collections.Generic;
using System.Web.Http;
using WebApplication1.Models;
using System.Linq;
using Newtonsoft.Json;
using WebApplication1.App_Start;

namespace WebApplication1.Controllers
{
    [AllowCrossSiteJson]
    public class BookChaptersController:ApiController
    {
        // GET api/bookchapters
        [HttpGet]
        public IEnumerable<BookChapter> Get()
        {
            return chapters;
        }

        // GET api/bookchapters/5
        public BookChapter Get(int id)
        {
            return chapters.Where(c => c.Number == id).SingleOrDefault();
        }

        // POST api/bookchapters
        [AcceptVerbs("POST")]
        [ActionName("bookchapter")]
        public void PostBookChapter([FromBody]BookChapter value)
        {
            chapters.Add(value);
        }

        // PUT api/bookchapters/5
        public void PutBookChapter(int id, [FromBody]BookChapter value)
        {
            chapters.Remove(chapters.Where(c => c.Number == id).Single());
            chapters.Add(value);
        }

        // DELETE api/bookchapters/5
        public void DeleteBookChapter(int id)
        {
            chapters.Remove(chapters.Where(c => c.Number == id).Single());
        }

        private static List<BookChapter> chapters;

        static BookChaptersController()
        {
            chapters = new List<BookChapter>()
            {
                new BookChapter{Number=1,Title=".Net Architecture",Pages=20},
                new BookChapter{Number=2,Title=".Net ",Pages=120},
                new BookChapter{Number=3,Title=".Net a",Pages=480},
                new BookChapter{Number=4,Title=".Net b",Pages=200},
                new BookChapter{Number=5,Title=".Net c",Pages=210},
                new BookChapter{Number=17,Title=".Net d",Pages=230},
                new BookChapter{Number=42,Title=".Net e",Pages=270},
                new BookChapter{Number=43,Title=".Net f",Pages=320},
                new BookChapter{Number=50,Title=".Net g",Pages=520}
            };
        }
    }
}