asp(JavaScript)自动判断网页编码并转换的代码

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我是靠谱客的博主畅快蓝天，最近开发中收集的这篇文章主要介绍asp(JavaScript)自动判断网页编码并转换的代码，觉得挺不错的，现在分享给大家，希望可以做个参考。

概述

完整的示例代码如下：

复制代码代码如下:

 
<%@LANGUAGE="JAVASCRIPT" CODEPAGE="65001"%> 
<html> 
<head> 
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"> 
<title>JavaScript自动判断网页编码并转换</title> 
</head> 
<%Server.ScriptTimeout=9999999; 
function send_request(url){ 
var codedtext; 
http_request = Server.CreateObject("Microsoft.XMLHTTP"); 
http_request.Open("GET",url,false); 
http_request.Send(null); 
if (http_request.ReadyState == 4){ 
//自动判断编码开始 
var charresult = http_request.ResponseText.match(/CharSet=(\S+)\">/i); 
if (charresult != null){ 
var Cset = charresult[1]; 
}else{Cset = "gb2312"}//对获取不到的网站采用gb2312编码,可自行更改 
//自动判断编码结束 
codedtext = bytesToBSTR(http_request.Responsebody,Cset); 
}else{ 
codedtext = "Erro"; 
} 
return(codedtext); 
} 
function bytesToBSTR(body,Cset){ 
var objstream; 
objstream = Server.CreateObject("Adodb.Stream"); 
objstream.Type = 1; 
objstream.Mode = 3; 
objstream.Open(); 
objstream.Write(body); 
objstream.Position = 0; 
objstream.Type = 2; 
objstream.Charset = Cset; 
bytesToBSTR = objstream.Readtext; 
objstream.Close; 
return(bytesToBSTR); 
}%> 
<body> 
<%Response.Write(send_request("http://www.uoften.com/404.htm"))%> 
</body> 
</html> 