// \b 是单词边界(连着的两个(字母字符 与 非字母字符) 之间的逻辑上的间隔),

// 字符串在编译时会被转码一次,所以是 "\\b"

// \B 是单词内部逻辑间隔(连着的两个字母字符之间的逻辑上的间隔)

static String phoneReg = "\\b(ip(hone|od)|android|opera m(ob|in)i"

+"|windows (phone|ce)|blackberry"

+"|s(ymbian|eries60|amsung)|p(laybook|alm|rofile/midp"

+"|laystation portable)|nokia|fennec|htc[-_]"

+"|mobile|up.browser|[1-4][0-9]{2}x[1-4][0-9]{2})\\b";

static String tableReg = "\\b(ipad|tablet|(Nexus 7)|up.browser"

+"|[1-4][0-9]{2}x[1-4][0-9]{2})\\b";

//移动设备正则匹配：手机端、平板

static Pattern phonePat = Pattern.compile(phoneReg, Pattern.CASE_INSENSITIVE);

static Pattern tablePat = Pattern.compile(tableReg, Pattern.CASE_INSENSITIVE);

/**

* 检测是否是移动设备访问

*

* @Title: check

* @Date : 2014-7-7 下午01:29:07

* @param userAgent 浏览器标识

* @return true:移动设备接入，false:pc端接入

*/

public static boolean checked(String userAgent){

if(null == userAgent){

userAgent = "";

}

// 匹配

Matcher matcherPhone = phonePat.matcher(userAgent);

Matcher matcherTable = tablePat.matcher(userAgent);

if(matcherPhone.find() || matcherTable.find()){

return true;

} else {

return false;

}

}

/**

* 检查访问方式是否为移动端

*

* @Title: check

* @Date : 2014-7-7 下午03:55:19

* @param request

* @throws IOException

*/

@SuppressWarnings("static-access")

public boolean check(HttpServletRequest request,HttpServletResponse response) throws IOException{

boolean isFromMobile=false;

HttpSession session= request.getSession();

//检查是否已经记录访问方式(移动端或pc端)

if(null==session.getAttribute("ua")){

try{

//获取ua，用来判断是否为移动端访问

String userAgent = request.getHeader( "USER-AGENT" ).toLowerCase();

if(null == userAgent){

userAgent = "";

}

isFromMobile=this.checked(userAgent);

//判断是否为移动端访问

if(isFromMobile){

session.setAttribute("ua","mobile");

} else {

session.setAttribute("ua","pc");

}

}catch(Exception e){}

}else{

try{

//获取ua，用来判断是否为移动端访问

String userAgent = request.getHeader( "USER-AGENT" ).toLowerCase();

if(null == userAgent){

userAgent = "";

}

isFromMobile=this.checked(userAgent);

//判断是否为移动端访问

if(isFromMobile){

session.setAttribute("ua","mobile");

} else {

session.setAttribute("ua","pc");

}

}catch(Exception e){}

isFromMobile=session.getAttribute("ua").equals("mobile");

}

return isFromMobile;

}