原文地址：https://blog.csdn.net/u010476739/article/details/105216936
环境：
vs2019 16.5.1
aspnetcore 3.1.1
fiddler
restsharp 106.10.1
说明：
要测试restsharp的功能，首先需要了解http传参和下载上传文件的原理，请参考：
c#：从http请求报文看http协议中参数传递的几种方式
c#使用Http上传下载文件
一、restsharp介绍
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,.NET Core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。
restsharp官网：http://restsharp.org/
二、首先准备webapi项目
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Threading.Tasks;
using Microsoft.AspNetCore.Mvc;
using Microsoft.Extensions.Logging;
namespace testweb.Controllers
{
[ApiController]
[Route("[controller]/[action]")]
public class TestController : ControllerBase
{
public async Task<IEnumerable<object>> TestGet()
{
return new object[] { new { Name = "小明", age = 20 }, new { Name = "小花", age = 18 } };
}
public async Task<IEnumerable<object>> TestPost()
{
return new object[] { new { Name = "post小明", age = 20 }, new { Name = "post小花", age = 18 } };
}
[HttpGet]
[HttpPost]
public async Task<string> TestUrlPara([FromQuery]string name, [FromQuery]int? age)
{
return $"hello {name},你{age}岁了!";
}
[HttpPost]
public async Task<string> TestPostUrlFormUrlencoded([FromForm]string name, [FromForm]int? age)
{
return $"hello {name},你{age}岁了!";
}
[HttpPost]
public async Task<string> TestPostUrlFormData([FromForm]string name, [FromForm]int? age)
{
return $"hello {name},你{age}岁了,你上传了{Request.Form.Files.Count}个文件!";
}
[HttpPost]
public string TestBodyJson([FromBody]User user)
{
if (user == null) return "user is null.";
return Newtonsoft.Json.JsonConvert.SerializeObject(user);
}
[HttpGet]
public IActionResult TestDownLoad()
{
var filepath = @"C:\Users\AUAS\Pictures\百度下载图片\timg.jpg";
FileStream fs = new FileStream(filepath, FileMode.Open);
return File(fs, "application/octet-stream", "test.png");
}
}
public class User
{
public string name { get; set; }
public int? id { get; set; }
}
}
三、开始测试restsharp发送各种类型http请求和下载文件
3.1 首先nuget包引入restsharp
3.2 直接看测试代码
using RestSharp;
using System;
using System.IO;
namespace restsharpdemo
{
class Program
{
private static RestClient client = new RestClient("http://localhost:5000/");
static void Main(string[] args)
{
//TestGet();
//TestPost();
//TestUrlPara();
//TestPostUrlFormUrlencoded();
//TestPostUrlFormData();
//TestBodyJson();
//TestDownLoad();
Console.WriteLine("Hello World!");
Console.ReadLine();
}
/// <summary>
/// 测试下载文件
/// </summary>
private static void TestDownLoad()
{
string tempFile = Path.GetTempFileName();
using (var writer = File.OpenWrite(tempFile))
{
var req = new RestRequest("test/TestDownLoad", Method.GET);
req.ResponseWriter = responseStream =>
{
using (responseStream)
{
responseStream.CopyTo(writer);
}
};
var response = client.DownloadData(req);
}
}
/// <summary>
/// 测试传递application/json类型参数
/// </summary>
private static void TestBodyJson()
{
var req = new RestRequest("test/TestBodyJson", Method.POST);
req.AddJsonBody(new { name = "小花", id = 23 });
var res = client.Execute(req);
if (res.IsSuccessful)
{
Console.WriteLine($"成功:{res.Content}");
}
else
{
if (res.StatusCode == 0)
{
Console.WriteLine($"失败:网络错误:{res.ErrorMessage}");
}
else
{
Console.WriteLine($"失败:{(int)res.StatusCode}-{res.StatusDescription}");
}
}
}
/// <summary>
/// 测试传递post multipart/form-data参数
/// </summary>
private static void TestPostUrlFormData()
{
var req = new RestRequest("test/TestPostUrlFormData", Method.POST);
req.AlwaysMultipartFormData = true;
req.AddParameter("name", "小明");
req.AddParameter("age", "20");
req.AddFile("file1", @"C:\Users\AUAS\Pictures\百度下载图片\timg.jpg");
var res = client.Execute(req);
if (res.IsSuccessful)
{
Console.WriteLine($"成功:{res.Content}");
}
else
{
if (res.StatusCode == 0)
{
Console.WriteLine($"失败:网络错误:{res.ErrorMessage}");
}
else
{
Console.WriteLine($"失败:{(int)res.StatusCode}-{res.StatusDescription}");
}
}
}
/// <summary>
/// 测试传递post application/x-www-form-urlencoded参数
/// </summary>
private static void TestPostUrlFormUrlencoded()
{
var req = new RestRequest("test/TestPostUrlFormUrlencoded", Method.POST);
//将参数编码后加到url上
req.AddHeader("Content-Type", "application/x-www-form-urlencoded");
req.AddParameter("name", "小明");
req.AddParameter("age", "20");
var res = client.Execute(req);
if (res.IsSuccessful)
{
Console.WriteLine($"成功:{res.Content}");
}
else
{
if (res.StatusCode == 0)
{
Console.WriteLine($"失败:网络错误:{res.ErrorMessage}");
}
else
{
Console.WriteLine($"失败:{(int)res.StatusCode}-{res.StatusDescription}");
}
}
}
/// <summary>
/// 测试传递url参数
/// </summary>
private static void TestUrlPara()
{
var req = new RestRequest("test/TestUrlPara", Method.GET);
req = new RestRequest("test/TestUrlPara", Method.POST);
//将参数编码后加到url上
req.AddParameter("name", "小明");
req.AddParameter("age", "18");
var res = client.Get(req);
if (res.IsSuccessful)
{
Console.WriteLine($"成功:{res.Content}");
}
else
{
if (res.StatusCode == 0)
{
Console.WriteLine($"失败:网络错误:{res.ErrorMessage}");
}
else
{
Console.WriteLine($"失败:{(int)res.StatusCode}-{res.StatusDescription}");
}
}
}
/// <summary>
/// 测试简单post
/// </summary>
private static void TestPost()
{
var req = new RestRequest("test/testpost", Method.POST);
var res = client.Post(req);
if (res.IsSuccessful)
{
Console.WriteLine($"成功:{res.Content}");
}
else
{
if (res.StatusCode == 0)
{
Console.WriteLine($"失败:网络错误:{res.ErrorMessage}");
}
else
{
Console.WriteLine($"失败:{(int)res.StatusCode}-{res.StatusDescription}");
}
}
}
/// <summary>
/// 测试简单get
/// </summary>
private static void TestGet()
{
var req = new RestRequest("test/testget", Method.GET);
var res = client.Get(req);
if (res.IsSuccessful)
{
Console.WriteLine($"成功:{res.Content}");
}
else
{
if (res.StatusCode == 0)
{
Console.WriteLine($"失败:网络错误:{res.ErrorMessage}");
}
else
{
Console.WriteLine($"失败:{(int)res.StatusCode}-{res.StatusDescription}");
}
}
}
}
}
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版权声明：本文为CSDN博主「jackletter」的原创文章，遵循CC 4.0 BY-SA版权协议，转载请附上原文出处链接及本声明。
原文链接：https://blog.csdn.net/u010476739/article/details/105216936