ASP.NET Web API 已取代WCF https://en.wikipedia.org/wiki/Windows_Communication_Foundation前面提到过 Web API。
我想我应该发布一个更新的答案，因为大多数回复都来自 2012 年初，并且该线程是 Google 搜索“调用静态服务 C#”时的最重要结果之一。
Microsoft 当前的指导是使用 Microsoft ASP.NET Web API 客户端库来使用RESTful https://en.wikipedia.org/wiki/Representational_state_transfer#RESTful_web_services服务。这可以作为NuGet https://en.wikipedia.org/wiki/NuGet包，Microsoft.AspNet.WebApi.Client。您需要将此 NuGet 包添加到您的解决方案中。
以下是使用 ASP.NET Web API 客户端库实现时示例的外观：
using System;
using System.Collections.Generic;
using System.Net.Http;
using System.Net.Http.Headers;
namespace ConsoleProgram
{
public class DataObject
{
public string Name { get; set; }
}
public class Class1
{
private const string URL = "https://sub.domain.com/objects.json";
private string urlParameters = "?api_key=123";
static void Main(string[] args)
{
HttpClient client = new HttpClient();
client.BaseAddress = new Uri(URL);
// Add an Accept header for JSON format.
client.DefaultRequestHeaders.Accept.Add(
new MediaTypeWithQualityHeaderValue("application/json"));
// List data response.
HttpResponseMessage response = client.GetAsync(urlParameters).Result; // Blocking call! Program will wait here until a response is received or a timeout occurs.
if (response.IsSuccessStatusCode)
{
// Parse the response body.
var dataObjects = response.Content.ReadAsAsync<IEnumerable<DataObject>>().Result; //Make sure to add a reference to System.Net.Http.Formatting.dll
foreach (var d in dataObjects)
{
Console.WriteLine("{0}", d.Name);
}
}
else
{
Console.WriteLine("{0} ({1})", (int)response.StatusCode, response.ReasonPhrase);
}
// Make any other calls using HttpClient here.
// Dispose once all HttpClient calls are complete. This is not necessary if the containing object will be disposed of; for example in this case the HttpClient instance will be disposed automatically when the application terminates so the following call is superfluous.
client.Dispose();
}
}
}
如果您计划发出多个请求，则应该重新使用 HttpClient 实例。请参阅此问题及其答案，了解有关在本例中为何未在 HttpClient 实例上使用 using 语句的更多详细信息：HttpClient 和 HttpClientHandler 是否必须在请求之间释放？ https://stackoverflow.com/questions/15705092/do-httpclient-and-httpclienthandler-have-to-be-disposed
有关更多详细信息，包括其他示例，请参阅从 .NET 客户端调用 Web API (C#) http://www.asp.net/web-api/overview/web-api-clients/calling-a-web-api-from-a-net-client
这篇博文也可能有用：使用 HttpClient 使用 ASP.NET Web API REST 服务 http://johnnycode.com/2012/02/23/consuming-your-own-asp-net-web-api-rest-service/
