• C# 客户端篇之实现Restful Client开发(RestSharp帮助类)


      上篇文章《C# 服务端篇之实现RestFul Service开发(简单实用)》讲解到,如果开发一个简单的Restful风格的Service,也提到了简单创建一个Restful Client去如何调用Service的API,本文只要再次详细讲解一个高效便捷易扩展的Restful Client帮助类,就是RestSharp,如果只是想自己简单实现一个Restful Client的方法,可以参考笔者上篇文章讲解的Restful Service提到的测试Client的Demo,好了,下面主要讲解一下今天的主(猪)角(脚)—RestSharp。

    一、RestSharp简绍

      RestSharp是一个轻量的,不依赖任何第三方的组件或者类库的Http的组件。RestSharp具体以下特性;

      1、支持.NET 3.5+,Silverlight 4, Windows Phone 7, Mono, MonoTouch, Mono for Android, Compact Framework 3.5等
      2、通过NuGet方便引入到任何项目 ( Install-Package restsharp )
      3、可以自动反序列化XML和JSON
      4、支持自定义的序列化与反序列化
      5、自动检测返回的内容类型
      6、支持HTTP的GET, POST, PUT, HEAD, OPTIONS, DELETE等操作
      7、可以上传多文件
      8、支持oAuth 1, oAuth 2, Basic, NTLM and Parameter-based Authenticators等授权验证等
      9、支持异步操作
      10、极易上手并应用到任何项目中

      以上是RestSharp的主要特点,通用它你可以很容易地用程序来处理一系列的网络请求(GET, POST, PUT, HEAD, OPTIONS, DELETE),并得到返回结果

      GitHub地址--->传送门,下载源码,根据不同的平台架构,编译出对应的dll文件。如图所示:

        

      下面是官方的应用示例,使用起来简单快捷:

     1 var client = new RestClient("http://example.com");
     2 // client.Authenticator = new HttpBasicAuthenticator(username, password);
     3 
     4 var request = new RestRequest("resource/{id}", Method.POST);
     5 request.AddParameter("name", "value"); // adds to POST or URL querystring based on Method
     6 request.AddUrlSegment("id", "123"); // replaces matching token in request.Resource
     7 
     8 // add parameters for all properties on an object
     9 request.AddObject(object);
    10 
    11 // or just whitelisted properties
    12 request.AddObject(object, "PersonId", "Name", ...);
    13 
    14 // easily add HTTP Headers
    15 request.AddHeader("header", "value");
    16 
    17 // add files to upload (works with compatible verbs)
    18 request.AddFile("file", path);
    19 
    20 // execute the request
    21 IRestResponse response = client.Execute(request);
    22 var content = response.Content; // raw content as string
    23 
    24 // or automatically deserialize result
    25 // return content type is sniffed but can be explicitly set via RestClient.AddHandler();
    26 IRestResponse<Person> response2 = client.Execute<Person>(request);
    27 var name = response2.Data.Name;
    28 
    29 // or download and save file to disk
    30 client.DownloadData(request).SaveAs(path);
    31 
    32 // easy async support
    33 await client.ExecuteAsync(request);
    34 
    35 // async with deserialization
    36 var asyncHandle = client.ExecuteAsync<Person>(request, response => {
    37     Console.WriteLine(response.Data.Name);
    38 });
    39 
    40 // abort the request on demand
    41 asyncHandle.Abort();

    二、RestSharp应用实例

      我们使用上篇文章的Restful Service的Demo进行简单测试一下,新建一个控制台项目,引用生成好的RestSharp版本,我的是.net framework 4.5.2 框架,大家根据自身实际情况编译不通的版本进行引用。主要代码如下:

     1 using System;
     2 using System.Collections.Generic;
     3 using System.Linq;
     4 using System.Text;
     5 using System.Threading.Tasks;
     6 using Newtonsoft.Json;
     7 using RestSharp;
     8 
     9 namespace RestFulClient
    10 {
    11     class Program
    12     {
    13         static void Main(string[] args)
    14         {
    15             Console.Title = "Restful客户端第三方RestSharpDemo测试";
    16             //方法二、使用第三方RestSharp
    17             var client = new RestSharp.RestClient("http://127.0.0.1:7788");
    18             var requestGet = new RestRequest("PersonInfoQuery/{name}", Method.GET);
    19             requestGet.AddUrlSegment("name", "王二麻子");
    20             IRestResponse response = client.Execute(requestGet);
    21             var contentGet = response.Content;
    22             Console.WriteLine("GET方式获取结果:" + contentGet);
    23 
    24             var requestPost = new RestRequest("PersonInfoQuery/Info", Method.POST);
    25             Info info = new Info();
    26             info.ID = 1;
    27             info.Name = "张三";
    28             var json = JsonConvert.SerializeObject(info);
    29             requestPost.AddParameter("application/json", json, ParameterType.RequestBody);
    30             IRestResponse responsePost = client.Execute(requestPost);
    31             var contentPost = responsePost.Content;
    32             Console.WriteLine("POST方式获取结果:" + contentPost);
    33             Console.Read();
    34         }
    35     }
    36 
    37     [Serializable]
    38     public class Info
    39     {
    40         public int ID { get; set; }
    41         public string Name { get; set; }
    42     }
    43 }

      开启Restful Service服务端,编译运行,结果如下:

      至此、RestSharp的简单应用就介绍这里了,后期将进一步介绍基于RestSharp的完善和二次扩展


    PS:如有疑问,请留言,未经允许,不得私自转载,转载请注明出处:https://www.cnblogs.com/xuliangxing/p/8746277.html

     

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  • 原文地址:https://www.cnblogs.com/xuliangxing/p/8746277.html
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