//类
    public class User1
    {
        public int id { get; set; }
        public string name { get; set; }
    }
//方法
        [HttpPost, Route("api/OrderPayJs/Notify0")]
      public string Notify0([FromBody]User1 u)
        {
            return "1";
        }
//传入参数
{
    id: 1,
    name: "冯东耀"
}