最快的C＃代码下载网页

Given a URL, what would be the most efficient code to download the contents of that web page? I am only considering the HTML, not associated images, JS and CSS.

给定一个URL,下载该网页内容的最有效代码是什么?我只考虑HTML,而不是相关的图像,JS和CSS。

5 个解决方案

#1

public static void DownloadFile(string remoteFilename, string localFilename)
{
    WebClient client = new WebClient();
    client.DownloadFile(remoteFilename, localFilename);
}

#2

System.Net.WebClient

From MSDN:

using System;
using System.Net;
using System.IO;

public class Test
{
    public static void Main (string[] args)
    {
        if (args == null || args.Length == 0)
        {
            throw new ApplicationException ("Specify the URI of the resource to retrieve.");
        }
        WebClient client = new WebClient ();

        // Add a user agent header in case the 
        // requested URI contains a query.

        client.Headers.Add ("user-agent", "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.2; .NET CLR 1.0.3705;)");

        Stream data = client.OpenRead (args[0]);
        StreamReader reader = new StreamReader (data);
        string s = reader.ReadToEnd ();
        Console.WriteLine (s);
        data.Close ();
        reader.Close ();
    }
}

#3

Use the WebClient class from System.Net; on .NET 2.0 and higher.

使用System.Net中的WebClient类;在.NET 2.0及更高版本上。

WebClient Client = new WebClient ();
Client.DownloadFile("http://mysite.com/myfile.txt", " C:\myfile.txt");

#4

here is my answer ,a method that takes a URL and return a string

这是我的答案,一个获取URL并返回一个字符串的方法

public static string downloadWebPage(string theURL)
    {
        //### download a web page to a string
        WebClient client = new WebClient();

        client.Headers.Add("user-agent", "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.2; .NET CLR 1.0.3705;)");

        Stream data = client.OpenRead(theURL);
        StreamReader reader = new StreamReader(data);
        string s = reader.ReadToEnd();
        return s;
    }

#5

WebClient.DownloadString

public static void DownloadString (string address)
{
    WebClient client = new WebClient ();
    string reply = client.DownloadString (address);

    Console.WriteLine (reply);
}

#1

public static void DownloadFile(string remoteFilename, string localFilename)
{
    WebClient client = new WebClient();
    client.DownloadFile(remoteFilename, localFilename);
}

#2