C# Httpclient客户端操作

原文地址：https://www.cnblogs.com/Xujg/p/4113387.html

HttpClient 当前主流用法，异步请求，自.NET4.5开始可从Nuget包管理中获取。

using System.Net.Http;

 GET:

 

using (var client = new HttpClient())
{
    var responseString = client.GetStringAsync("http://www.mydomain.com/recepticle.aspx");
}

 

POST:

using (var client = new HttpClient())
{
    var values = new List<KeyValuePair<string, string>>();
    values.Add(new KeyValuePair<string, string>("thing1", "hello"));
    values.Add(new KeyValuePair<string, string>("thing2 ", "world"));
 
    var content = new FormUrlEncodedContent(values);
 
    var response = await client.PostAsync("http://www.mydomain.com/recepticle.aspx", content);
 
    var responseString = await response.Content.ReadAsStringAsync();
}

 注意：HttpContent的实现有多种，可以是FormUrlEncodedContent 还可以是StringContent等。