判断域名是否带www,不带就301跳转到带www的域名

mejoywind 2011-01-13 09:27:15

比如访问xxx.com时没有www就直接301跳转到www.xxx.com

<script runat="server">
private void Page_Load(object sender, System.EventArgs e)
{
Response.Status = "301 Moved Permanently";
Response.AddHeader("Location","http://www.xxx.com");
}
</script>

求代码。

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mejoywind 2011-01-14

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Response.Status = "301 Moved Permanently";
Response.AddHeader("Location","http://www.xxx.com");

一定要用这个301跳转

xuxubaby 2011-01-13

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<script type="text/javascript">

  test = function(){

     var localStr = document.location.href;

	 //alert(localStr);

	 if(localStr.indexOf("www") == -1)

	 {

	    alert("不存在");

	 }

	 else

	 {

	    window.location.href="http://www.xxx.com";

	 }

  }

</script>

xuxubaby 2011-01-13

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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<title>无标题文档</title>
<script type="text/javascript">
test = function(){
var localStr = document.location.href;
//alert(localStr);
if(localStr.indexOf("www") == -1)
{
alert("不存在");
}
else
{
window.location.href="http://www.xxx.com";
}
}
</script>
</head>

<body onload="test()">
</body>
</html>

wsbgy 2011-01-13

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if (!IsPostBack)
{
string strHost=Request.Url.Host;
if (!strHost.Contains("www"))
Response.Redirect("http://www." + strHost + "/" + Request.Url.PathAndQuery);
}