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判断客户端设备

public static bool isMobileBrowser()
{
    //GETS THE CURRENT USER CONTEXT
    HttpContext context = HttpContext.Current;

    //FIRST TRY BUILT IN ASP.NT CHECK
    if (context.Request.Browser.IsMobileDevice)
    {
        return true;
    }
    //THEN TRY CHECKING FOR THE HTTP_X_WAP_PROFILE HEADER
    if (context.Request.ServerVariables["HTTP_X_WAP_PROFILE"] != null)
    {
        return true;
    }
    //THEN TRY CHECKING THAT HTTP_ACCEPT EXISTS AND CONTAINS WAP
    if (context.Request.ServerVariables["HTTP_ACCEPT"] != null && 
        context.Request.ServerVariables["HTTP_ACCEPT"].ToLower().Contains("wap"))
    {
        return true;
    }
    //AND FINALLY CHECK THE HTTP_USER_AGENT 
    
//HEADER VARIABLE FOR ANY ONE OF THE FOLLOWING
    if (context.Request.ServerVariables["HTTP_USER_AGENT"] != null)
    {
        //Create a list of all mobile types
        string[] mobiles =
            new[]
                {
                    "midp""j2me""avant""docomo"
                    "novarra""palmos""palmsource"
                    "240x320""opwv""chtml",
                    "pda""windows ce""mmp/"
                    "blackberry""mib/""symbian"
                    "wireless""nokia""hand""mobi",
                    "phone""cdm""up.b""audio"
                    "SIE-""SEC-""samsung""HTC"
                    "mot-""mitsu""sagem""sony"
                    , "alcatel""lg""eric""vx"
                    "NEC""philips""mmm""xx"
                    "panasonic""sharp""wap""sch",
                    "rover""pocket""benq""java"
                    "pt""pg""vox""amoi"
                    "bird""compal""kg""voda",
                    "sany""kdd""dbt""sendo"
                    "sgh""gradi""jb""dddi"
                    "moto""iphone"
                };

        //Loop through each item in the list created above 
        
//and check if the header contains that text
        foreach (string s in mobiles)
        {
            if (context.Request.ServerVariables["HTTP_USER_AGENT"].
                                                ToLower().Contains(s.ToLower()))
            {
                return true;
            }
        }
    }

    return false;
}

来源:http://www.codeproject.com/KB/aspnet/mobiledetect.aspx 

posted on 2011-11-22 11:02  alronzhang  阅读(474)  评论(0编辑  收藏  举报