C#创建和发送HTTP GET请求

示例

using System.Net;
using System.IO;

...

string requestUrl = "https://www.example.com/page.html";
HttpWebRequest request = HttpWebRequest.CreateHttp(requestUrl);

// (可选)设置HttpWebRequest的属性,例如:
request.AutomaticDecompression =DecompressionMethods.GZip| DecompressionMethods.Deflate;
request.Timeout = 2 * 60 * 1000; // 2分钟(以毫秒为单位)

// 提交请求,并获取响应正文。
string responseBodyFromRemoteServer;
using (HttpWebResponse response = (HttpWebResponse)request.GetResponse())
{
    using (StreamReader reader = new StreamReader(response.GetResponseStream()))
    {
        responseBodyFromRemoteServer = reader.ReadToEnd();
    }
}