web服务通过用户访问请求判断设备来源

前言：
为了更精准的捕获用户访问类型，对用户的行为进行捕获和分析，同时也为了更少的对现有接口进行改动和兼容，我们需要识别接口请求来源于pc设备还是移动端设备。

1、正则表达式

static String phoneDevicesReg = "\\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 tableDevicesReg = "\\b(ipad|tablet|(Nexus 7)|up.browser"
            +"|[1-4][0-9]{2}x[1-4][0-9]{2})\\b";

 //移动设备手机端正则匹配
    static Pattern phoneDevicesPat = Pattern.compile(phoneDevicesReg, Pattern.CASE_INSENSITIVE);
   //移动设备平板端正则匹配
    static Pattern tableDevicesPat = Pattern.compile(tableDevicesReg, Pattern.CASE_INSENSITIVE);

2、对移动设备识别标记

public static boolean mobileDevices(HttpServletRequest request){
    
        String userAgent = request.getHeader("USER-AGENT").toLowerCase();
        if(null == userAgent){
    
            userAgent = "";
        }
        // 匹配
        Matcher matcherDevicesPhone = phoneDevicesPat.matcher(userAgent);
        Matcher matcherDevicesTable = tableDevicesPat.matcher(userAgent);
        return  (matcherDevicesPhone.find() || matcherDevicesTable.find());
    }