使用HttpClient消费ASP.NETWebAPI服务案例

    public class Person
    {
        public int Id { get; set; }
        public string FirstName { get; set; }
        public string LastName { get; set; }
    }

    public class PersonController : ApiController
    {
    }

    public class PersonController : ApiController
    {
        public IEnumerable<Person> GetAllPersons()
        {
            return new List<Person>
            {
                new Person(){Id = 1, FirstName = "jack", LastName = "li"},
                new Person(){Id = 2, FirstName = "darren", LastName = "ji"},
                new Person(){Id = 3, FirstName = "sunny", LastName = "su"}
            };
        }
    }

        static void Main(string[] args)
        {
            using (WebClient proxy = new WebClient())
            {
                var response = proxy.DownloadString("http://localhost:2497/api/Person");
                Console.WriteLine(response);
                Console.ReadKey();
            }
        }

        static void Main(string[] args)
        {
            using (WebClient proxy = new WebClient())
            {
                proxy.Headers.Add(HttpRequestHeader.Accept, "application/xml");
                var response = proxy.DownloadString("http://localhost:2497/api/Person");
                Console.WriteLine(response);
                Console.ReadKey();
            }
        }

        static void Main(string[] args)
        {
            Console.WriteLine("获取ASP.NET Web API服务内容如下：");
            HttpClient proxy = new HttpClient();
            proxy.GetAsync("http://localhost:2497/api/Person").ContinueWith((previous) =>
            {
                HttpResponseMessage response = previous.Result;
                response.Content.ReadAsStringAsync().ContinueWith((a) =>
                {
                    foreach (var item in a.Result)
                    {
                        Console.WriteLine(item.ToString());
                    }
                });
            });
            
            Console.ReadKey(true);
        }