RestSharp 一個.NET(C#)的HTTP輔助類組件

互聯網上關於.NET（C#）的HTTP相關的輔助類還是比較多的，這里再為大家推薦一個.NET的HTTP輔助類，它叫RestSharp。RestSharp是一個輕量的，不依賴任何第三方的組件或者類庫的Http的組件。RestSharp具有以下的優點：

1. 支持.NET 3.5+,Silverlight 4, Windows Phone 7, Mono, MonoTouch, Mono for Android, Compact Framework 3.5等
2. 通過NuGet方便引入到任何項目 ( Install-Package restsharp )
3. 可以自動反序列化XML和JSON
4. 支持自定義的序列化與反序列化
5. 自動檢測返回的內容類型
6. 支持HTTP的GET, POST, PUT, HEAD, OPTIONS, DELETE等操作
7. 可以上傳多文件
8. 支持oAuth 1, oAuth 2, Basic, NTLM and Parameter-based Authenticators等授權驗證等
9. 支持異步操作
10. 極易上手並應用到任何項目中

以上是RestSharp的主要特點，通用它你可以很容易地用程序來處理一系列的網絡請求（GET, POST, PUT, HEAD, OPTIONS, DELETE），並得到返回結果。 最后是官方的應用示例，就是如下這么簡單：

var client = new RestClient("http://example.com");
// client.Authenticator = new HttpBasicAuthenticator(username, password);

var request = new RestRequest("resource/{id}", Method.POST);
request.AddUrlSegment("id", "123"); // replaces matching token in request.Resource

// easily add HTTP Headers
request.AddHeader("header", "value");

// add files to upload (works with compatible verbs)
request.AddFile(path);

var postdata = new
            {
                username = "yanyangtian",
                password = "123456",
                nickname = "艷陽天"
            };
var json = request.JsonSerializer.Serialize(postdata);
request.AddParameter("application/json; charset=utf-8", json, ParameterType.RequestBody);

// execute the request
RestResponse response = client.Execute(request);
var content = response.Content; // raw content as string

// or automatically deserialize result
// return content type is sniffed but can be explicitly set via RestClient.AddHandler();
RestResponse<Person> response2 = client.Execute<Person>(request);
var name = response2.Data.Name;

// easy async support
client.ExecuteAsync(request, response => {
    Console.WriteLine(response.Content);
});

// async with deserialization
var asyncHandle = client.ExecuteAsync<Person>(request, response => {
    Console.WriteLine(response.Data.Name);
});

// abort the request on demand
asyncHandle.Abort();