package com.tgb.util;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
/**
* 检测是否为移动端设备访问
*
*/
public class CheckMobile {
// 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 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 = "(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})";
static String tableReg = "(ipad|tablet|(Nexus 7)|up.browser" +"|[1-4][0-9]{2}x[1-4][0-9]{2})";
//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
*
*/
public static boolean check(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
*/
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=CheckMobile.check(userAgent);
//判断是否为移动端访问
if(isFromMobile){
System.out.println("移动端访问");
session.setAttribute("ua","mobile");
} else {
System.out.println("pc端访问");
session.setAttribute("ua","pc");
}
}catch(Exception e){}
}else{
isFromMobile=session.getAttribute("ua").equals("mobile");
}
return isFromMobile;
}
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