根据当前请求的特征，判断该请求是否来自手机终端，主要检测特殊的头信息，以及user-Agent这个header

public static boolean isMobileDevice(HttpServletRequest request){

boolean b = false;

boolean pcFlag = false;

boolean mobileFlag = false;

String via = request.getHeader("Via");

String userAgent = request.getHeader("user-agent");

for (int i = 0; via!=null && !via.trim().equals("") && i < mobileGateWayHeaders.length; i++) {

if(via.contains(mobileGateWayHeaders[i])){

mobileFlag = true;

break;

}

}

for (int i = 0;!mobileFlag && userAgent!=null && !userAgent.trim().equals("") && i < mobileUserAgents.length; i++) {

if(userAgent.contains(mobileUserAgents[i])){

mobileFlag = true;

break;

}

}

for (int i = 0; userAgent!=null && !userAgent.trim().equals("") && i < pcHeaders.length; i++) {

if(userAgent.contains(pcHeaders[i])){

pcFlag = true;

break;

}

}

if(mobileFlag==true && pcFlag==false){

b=true;

}

return b;//false pc true shouji

}