1.获取 post 请求 body 内容

[HttpPost]

public string GetId()

{
　　//如果方法参数里面有 [FromBody]，则需要重新调整内容指针，再进行读取。

   //Request.Content.ReadAsStreamAsync().Result.Seek(0,System.IO.SeekOrigin.Begin);

　　string content = Request.Content.ReadAsStringAsync().Result;

　　return content;

}

 private static void SendRequest()

        {

            using (var client = new System.Net.Http.HttpClient())

            {

                client.BaseAddress = new Uri("http://192.168.1.3:42561/");

                var url = "apitest/order/pager";

                //添加自定义头信息

                client.DefaultRequestHeaders.Add("name", "wjire");

                //设置头信息中的 Authorization

                client.DefaultRequestHeaders.Authorization = new System.Net.Http.Headers.AuthenticationHeaderValue("scheme", "Mima");

                //PostAsJsonAsync 及上表中几个类似方法都需要引用nuget中的 Microsoft.AspNet.WebApi.Client

                //Post方法一:用json格式传递参数

                //client.PostAsJsonAsync(url, new Person { Name = "fffff", Id = 123, Age = 100 }).ContinueWith(GetResponse);;

                //Post方法二:匿名类,原理同方法一

                //var content = new

                //{

                //    Name = "gg",

                //    Id = 1,

                //    Age = 1

                //};

                //client.PostAsJsonAsync(url, content).ContinueWith(GetResponse);;

                //Post方法三: 原生的键值对形式传递参数

                //var content = new FormUrlEncodedContent(new Dictionary<string, string>

                // {

                //    {"id","1" },

                //    {"name","wjjj" },

                //    {"age","100" }

                // });

                //client.PostAsync(url, content).ContinueWith(GetResponse);;

                //Get方式

                //这里如果要传递参数,参数个数必须包含请求的API接口所接收的所有参数,只能多,不能少,否则无法传递.其实多了也没有意义

                var task = client.GetAsync(url + "?age=100&id=121&name=go1ng").ContinueWith(GetResponse);

                Console.ReadLine();

            }

        }

        private static void GetResponse(Task<HttpResponseMessage> obj)

        {

            var getResult = obj.Result;

            //判断请求是否成功

            var isSuccess = getResult.IsSuccessStatusCode;

            if (isSuccess)

            {

                //这里当然也可以转成自定义类

                var readResult = getResult.Content.ReadAsAsync<dynamic>();

                var model = readResult.Result;

                Console.WriteLine(model.Age);

                Console.WriteLine(model.Name);

                Console.WriteLine(model.Id);

            }

        }