c#-网络-webRequest.BeginGetResponse-简单实验

异步网络请求与响应处理

最新推荐文章于 2021-11-10 13:58:32 发布

原创最新推荐文章于 2021-11-10 13:58:32 发布 · 955 阅读

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这段代码展示了如何使用C#进行异步网络请求，通过WebRequest.BeginGetResponse方法获取HTTP响应，并在回调方法onResonse中处理响应数据，读取并打印网页内容。

概要

webRequest.BeginGetResponse(new AsyncCallback(onResonse), webRequest);

static void onResonse(IAsyncResult asyncResult) {
WebRequest webRequest = (WebRequest)asyncResult.AsyncState;

代码

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Net;
using System.IO;

namespace ConsoleApp9
{
    class Program
    {
        static void Main(string[] args)
        {
            WebRequest webRequest = WebRequest.Create("http://www.baidu.com");
            webRequest.BeginGetResponse(new AsyncCallback(onResonse), webRequest);
            Console.ReadKey();
        }
        static void onResonse(IAsyncResult asyncResult) {
            WebRequest webRequest = (WebRequest)asyncResult.AsyncState;
            WebResponse webResponse = webRequest.GetResponse();
            Stream stream = webResponse.GetResponseStream();
            StreamReader streamReader = new StreamReader(stream);
            String line;
            while ((line = streamReader.ReadLine()) != null) {
                Console.WriteLine(line);
            }
        }
    }
}

运行