Web Sitesine Gelen Client'ın Mobil Cihaz Olup Olmadığını Anlayabilirsiniz

Bir web sitesine istek yapan client'ın mobil cihaz mı değil mi olduğunu aşağıdaki fonksiyonu kullanarak anlayabilirsiniz : 

public boolean isMobile(HttpServletRequest request) throws Exception {
        
        String user_agent = request.getHeader("user-agent");
        String accept = request.getHeader("accept");
        String x_wap_profile = request.getHeader("x-wap-profile");
        String profile = request.getHeader("profile");
        String opera = request.getHeader("X-OperaMini-Phone");
        String ua_pixels = request.getHeader("ua-pixels");
        
        if (user_agent != null) {
            
            if (user_agent.contains("windows") &&! user_agent.contains("windows ce")){
                return false;
            }
            
            Pattern pattern = Pattern.compile("up.browser|up.link|windows ce|iphone|
iemobile|mini|mmp|symbian|midp|wap|phone|pocket|mobile|pda|psp|android|nokia|
blackberry|rim|opera mini|opera mobi|windows ce|windows phone|netfront|palm-
|palm os|pre|palmsource|avantogo|webos|hiptop|iris|kddi|kindle|lg-|lge|mot-|motorola|
nintendo ds|nitro|playstation portable|samsung|sanyo|sprint|sonyericsson|
alcatel|audiovox|bird|coral|cricket|docomo|edl|huawei|htc|gt-|lava|ct|lg|lynx|mobile|
lenovo|maui|micromax|mot|myphone|nec|nexian|nook|pantech|pg|polaris|ppc|sch
|sec|spice|tianyu|ustarcom|utstarcom|" +
                        "videocon|vodafone|winwap|zte", Pattern.CASE_INSENSITIVE);
            
            Matcher matcher = pattern.matcher(user_agent);
           
            if (matcher.find()){
                return true;
            }
            
            String[] ua = {"acs-","alav","alca","amoi","audi","aste","avan",
"benq","bird","blac","blaz", "brew","cell","cldc","cmd-","dang","doco","eric","hipt","inno",
"ipaq","java","jigs", "kddi","keji","leno","lg-c","lg-d","lg-g","lge-","maui","maxo",
"midp","mits","mmef", "mobi","mot-","moto","mwbp","nec-","newt","noki","opwv",
"palm","pana","pant","pdxg", "phil","play","pluc","port","prox","qtek","qwap",
"sage","sams","sany","sch-","sec-","send","seri","sgh-","shar","sie-","siem",
"smal","smar","sony","sph-","symb","t-mo", "teli","tim-","tosh","tsm-","upg1","upsi",
"vk-v","voda","w3c ","wap-","wapa","wapi", "wapp","wapr","webc",
"winw","winw","xda","xda-"};
            
            for(int i = 0; i < ua.length; i++ ) {
                if (ua[i] == user_agent.substring(0,3)) {
                        return true;
                }
            }

        }
        
        if (accept != null) {
            if (accept.contains("text/vnd.wap.wml") || 
			accept.contains("application/vnd.wap.xhtml+xml")) {
                return true;
            }
        }
        
        if (x_wap_profile != null || profile != null || opera != null || ua_pixels != null) {
            return true;
        }
        
        return false;
    }

Not : http://wiki.drupalschool.net/index.php/Use_Java_to_Detect_Mobile_Devices  kaynağından yararlanılmıştır.