使用HttpClient操作ASP.NET Web API 2.1增删改查

使用NuGet包安装Microsoft ASP.NET Web API 2.1 Client Libraries,

调用方式代码如下：

  　　　　　　HttpClient client = new HttpClient();
             client.BaseAddress = new Uri("http://localhost:2471/");//基地址
             client.DefaultRequestHeaders.Accept.Add(
                 new MediaTypeWithQualityHeaderValue("application/json"));
             HttpResponseMessage response = client.GetAsync("api/values").Result;
             if (response.IsSuccessStatusCode)
             {
                 var products = response.Content.ReadAsAsync<IEnumerable<ProductInfo>>().Result;
             }
             else
             {
                 Console.WriteLine("{0} ({1})", (int)response.StatusCode, response.ReasonPhrase);
             }

             //HTTP Post请求
             ProductInfo pro = new ProductInfo();
             pro.dateTime1 = DateTime.Now;
             pro.Int = ;
              response = client.PutAsJsonAsync<ProductInfo>("api/Values", pro).Result;
             if (response.IsSuccessStatusCode)
             {

             }
             else
             {
                 Console.WriteLine("{0} ({1})", (int)response.StatusCode, response.ReasonPhrase);
             }

            response =  client.DeleteAsync("api/values/5").Result;
            if (response.IsSuccessStatusCode)
            {

            }
            else
            {
                Console.WriteLine("{0} ({1})", (int)response.StatusCode, response.ReasonPhrase);
            }

values控制器代码如下：

 public IEnumerable<ProductInfo> GetList()
         {
             //string s = this.Request.Headers.GetValues("YXLCookie").FirstOrDefault();

             ProductInfo p = new ProductInfo();
             p.Int = ;
             p.string1 = "";
             p.dateTime2 = DateTime.Now;

             ProductItem pi = new ProductItem() { Int = , string1 = "" };
             p.productItem = pi;

             ProductInfo p2 = new ProductInfo();
             p2.Int = ;
             p2.string1 = "";
             p2.dateTime2 = DateTime.Now;

             ProductItem pi2 = new ProductItem() { Int = , string1 = "", dateTime1 = DateTime.Now };
             p2.productItem = pi2;

             List<ProductInfo> list = new List<ProductInfo>();
             list.Add(p);
             list.Add(p2);

             return list;
         }

         // POST api/values
         public void PostProduct([FromBody]ProductInfo pro)
         {

         }
         // DELETE api/values/5
         public void Delete(int id)
         {
         }

使用JsonConvert要安装Json.NET，使用NuGet安装Json.NET如果我们新增json格式的数据，需要将json格式转换为object对象，代码如下：

 HttpClient client = httpClient;
             client.BaseAddress = new Uri("https://api.weixin.qq.com");
             client.DefaultRequestHeaders.Accept.Add(
                 new MediaTypeWithQualityHeaderValue("application/json"));

             object s1 = JsonConvert.DeserializeObject<object>(@"{
                  'button':[
                  {
                       'type':'click',
                       'name':'协运跟踪',
                       'key':'V1001_TODAY_MUSIC'
                   },
                   {
                        'type':'click',
                        'name':'金牌航线',
                        'key':'V1001_TODAY_SINGER'
                   },
                   {
                        'name':'菜单测试',
                        'sub_button':[
                        {
                            'type':'view',
                            'name':'运价',
                            'url':'http://weixin.51xieyun.com/price/index'
                         },
                         {
                            'type':'view',
                            'name':'首页',
                            'url':'http://weixin.51xieyun.com'
                         },
                         {
                            'type':'click',
                            'name':'赞一下我们',
                            'key':'V1001_GOOD'
                         }]
                    }]
              }
             ");
             HttpResponseMessage response = client.PostAsJsonAsync<object>("cgi-bin/menu/create?access_token=dPm9S5I6bMKp3QHhcxxqyJhuaNH4h20lJaIeNi-gXVbkpQCsUdyvOLbfQCPmDFWMIS0LowOXSVfu1iD47VC9nolu29-rRJ0oWUhIX0WRDYKPOIZtf4onsSvFePdt1iX9jba5rmhR769OG7cye--V4g", s1).Result;
             if (response.IsSuccessStatusCode)
             {
                 var products = response.Content.ReadAsAsync<object>().Result;
             }
             else
             {
                 Console.WriteLine("{0} ({1})", (int)response.StatusCode, response.ReasonPhrase);
             }