^{<rp id="sn14r"></rp>}_{<sub id="sn14r"><input id="sn14r"></input></sub>}

asp.net 網(wǎng)頁編碼自動(dòng)識(shí)別代碼

2024-07-10 12:39:44

字體：大中小

供稿：網(wǎng)友

代碼如下:
using System;
using System.Net;
using System.Text;
using System.Text.RegularExpressions;

class Program
{
// 獲取網(wǎng)頁的HTML內(nèi)容，根據(jù)網(wǎng)頁的charset自動(dòng)判斷Encoding
static string GetHtml(string url)
{
return GetHtml(url, null);
}

// 獲取網(wǎng)頁的HTML內(nèi)容，指定Encoding
static string GetHtml(string url, Encoding encoding)
{
byte[] buf = new WebClient().DownloadData(url);
if (encoding != null) return encoding.GetString(buf);
string html = Encoding.UTF8.GetString(buf);
encoding = GetEncoding(html);
if (encoding == null || encoding == Encoding.UTF8) return html;
return encoding.GetString(buf);
}

// 根據(jù)網(wǎng)頁的HTML內(nèi)容提取網(wǎng)頁的Encoding
static Encoding GetEncoding(string html)
{
string pattern = @"(?i)/bcharset=(?<charset>[-a-zA-Z_0-9]+)";
string charset = Regex.Match(html, pattern).Groups["charset"].Value;
try { return Encoding.GetEncoding(charset); }
catch (ArgumentException) { return null; }
}

// 程序入口
static void Main()
{
Console.WriteLine(GetHtml(//www.survivalescaperooms.com));

Console.Read();
}
}

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