WebAPI的使用

后台API的代码：

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Http;
using System.Web.Http.Cors;

namespace ECERP.Web.Controllers
{

　　//有参数的POST请求
    [RoutePrefix("api")]
    [EnableCors(origins: "*", headers: "*", methods: "*")]
    public class SignInController: ApiController
    {
        [HttpPost, Route("SignIn/SignIn")]
        public void SignIn([FromBody]SignInDto signInDto)
        {            
        }      
    }

    public class SignInDto
    {
        /// <summary>
        /// 设置的Id
        /// </summary>
        public string Id { get; set; }
    }
}

前台JS代码：

//有参数的POST请求
var data={Id: "1"};
$.ajax({
            type: "post",
            url: "/api/SignIn/SignIn",
            data: JSON.stringify(data),
            cache: true,
            contentType: "application/json",//必须是这个
            //contentType: false,//上传文件用这个
            dataType: "json",
            success: function (data, status) {             
            },
            error: function (e) {               
            },
            complete: function () {
            }
        });