1、FromForm

web api :

        [HttpPost]
        public string set([FromForm] PostData_model post)
        {
            return "set";
        }

Content-Type设置为：application/x-www-form-urlencoded

2、FromBody

web api:

        [HttpPost]
        public string set([FromBody] PostData_model post)
        {
            return "set";
        }

Content-Type设置为：application/json

3、FromHeader

web api :

        [HttpPost]
        public string set([FromHeader] string head, [FromBody] PostData_model post)
        {
            return "set";
        }

Headers 中增加head字段

4、FromQuery

        [HttpPost]
        public string set([FromQuery] string query, [FromBody] PostData_model post)
        {
            return "set";
        }

Params中增加query字段