Javascript实现检测客户端类型代码封包

检测访问网页的浏览器呈现引擎、平台、Windows操作系统、移动设备和游戏系统

/**
* Author: laixiangran.
* Created by laixiangran on 2015/12/02.
* 检测访问网页的浏览器呈现引擎、平台、Windows操作系统、移动设备和游戏系统
* ********************************************************************
* 各版本浏览器在windows10.0下的用户代理字符串：
* Google Chrome 45.0.2454.85 ―― "Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/45.0.2454.85 Safari/537.36"
* Opera 31.0.1889.174 ―― "Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/44.0.2403.155 Safari/537.36 OPR/31.0.1889.174"
* Microsoft Edge ―― "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36 Edge/12.10240"
* Firefox 40.0.3 ―― "Mozilla/5.0 (Windows NT 10.0; WOW64; rv:40.0) Gecko/20100101 Firefox/40.0"
* Internet Explorer 11+ ―― "Mozilla/5.0 (Windows NT 10.0; WOW64; Trident/7.0; .NET4.0C; .NET4.0E; .NET CLR 2.0.50727; .NET CLR 3.0.30729; .NET CLR 3.5.30729; rv:11.0) like Gecko"
* Internet Explorer 10- ―― "Mozilla/5.0 (compatible; MSIE x.0; Windows NT 10.0; WOW64; Trident/8.0; .NET4.0C; .NET4.0E; .NET CLR 2.0.50727; .NET CLR 3.0.30729; .NET CLR 3.5.30729)"
*/
(function(){
window.iClient = {};
//呈现引擎信息
var engine = {
//呈现引擎
ie: 0,
gecko: 0,
webkit: 0,
khtml: 0,
opera:0,
//具体版本号
ver: null
};
var browser = {
//浏览器
ie: 0,
edge: 0,
firefox: 0,
safari: 0,
konq: 0,
opera: 0,
chrome: 0,
//具体版本号
ver: null
};
//平台、设备和操作系统
var system = {
win: false,
mac: false,
unix: false,
//移动设备
iphone: false,
ipod: false,
ipad: false,
ios: false,
android: false,
nokiaN: false,
winMobile: false,
//游戏系统
wii: false, //任天堂
ps: false  //Playstation3
};
//获取浏览器的用户代理字符串
var ua = window.navigator.userAgent;
//检测呈现引擎和浏览器
//检测Presto内核的Opera浏览器
if(window.opera){
engine.ver = browser.ver = window.opera.version();
engine.opera = browser.opera = parseFloat(engine.ver);
}
//检测WebKit 用代理字符串中的"AppleWebKit"进行检测
else if(/AppleWebKit\/(\S+)/.test(ua)){
engine.ver = RegExp["$1"];
engine.webkit = parseFloat(engine.ver);
//确定Microsoft Edge
if(/Edge\/(\S+)/.test(ua)){
browser.ver = RegExp["$1"];
browser.edge = parseFloat(browser.ver);
}
//确定WebKit内核Opera
else if(/OPR\/(\S+)/.test(ua)){
browser.ver = RegExp["$1"];
browser.opera = parseFloat(browser.ver);
}
//确定Chrome
else if(/Chrome\/(\S+)/.test(ua)){
browser.ver = RegExp["$1"];
browser.chrome = parseFloat(browser.ver);
}
//确定Safari
else if(/Version\/(\S+)/.test(ua)){
browser.ver = RegExp["$1"];
browser.safari = parseFloat(browser.ver);
}else{
//近似的确定版本号
var safariVersion = 1;
if(engine.webkit < 100){
safariVersion = 1;
}else if(engine.webkit <312){
safariVersion = 1.2;
}else if(engine.webkit < 412){
safariVersion = 1.3;
}else{
safariVersion = 2;
}
browser.ver = browser.safari = safariVersion;
}
}
//检测KHTML 用于Konqueror3.1及更早版本中不包含KHTML的版本，故而就要使用Konqueror的版本来代替
else if(/KHTML\/(\S+)/.test(ua) || /Konqueror\/(\S+)/.test(ua)){
engine.ver = browser.ver = RegExp["$1"];
engine.khtml = browser.konq = parseFloat(engine.ver);s
}
//检测Gecko 其版本号在字符串"rv:"的后面
else if(/rv:([^\)]+)\) Gecko\/\d{8}/.test(ua)){
engine.ver = RegExp["$1"];
engine.gecko = parseFloat(engine.ver);
//确定Firefox
if(/Firefox\/(\S+)/.test(ua)){
browser.ver = RegExp["$1"];
browser.firefox = parseFloat(browser.ver);
}
}
//检测IE
else if(/MSIE ([^;]+)/.test(ua) || /rv:([^\)]+)\) like Gecko/.test(ua)){
engine.ver = browser.ver = RegExp["$1"];
engine.ie = browser.ie = parseFloat(engine.ver);
}
//获取平台或者操作系统信息,可能的值：win32、win64、MacPPC、MacIntel、Xll、Linux i686
var p = window.navigator.platform;
//检测平台
system.win = p.indexOf("Win") == 0;
system.mac = p.indexOf("Mac") == 0;
system.unix = (p == "Xll'") || (p.indexOf("Linux") == 0);
//检测Windows操作系统
if(system.win){
if(/Win(?:dows )?([^do]{2})\s?(\d+\.\d+)?/.test(ua)){
if(RegExp["$1"] == "NT"){
switch(RegExp["$2"]){
case "5.0":
system.win = "2000";
break;
case "5.1":
system.win = "XP";
break;
case "6.0":
system.win = "Vista";
break;
case "7":
system.win = "7";
break;
case "8":
system.win = "8";
break;
case "8.1":
system.win = "8.1";
break;
case "10.0":
system.win = "10.0";
break;
default:
system.win = "NT";
break;
}
}
}
}
//移动设备
system.iphone = ua.indexOf("iPhone") > -1;
system.ipod = ua.indexOf("iPod") > -1;
system.ipad = ua.indexOf("iPad") > -1;
system.nokiaN = ua.indexOf("NokiaN") > -1;
//window mobile
if(system.win == "CE"){
system.winMobile = system.win;
}else if(system.win == "Ph"){
if(/Windows Phone OS (\d+.\d+)/.test(ua)){
system.win = "Phone";
system.winMobile = parseFloat(RegExp["$1"]);
}
}
//检测iOS版本
if(system.mac && ua.indexOf("Mobile") > -1){
if(/CPU (?:iPhone )?OS (\d+.\d+)/.test(ua)){
system.ios = parseFloat(RegExp["$1"].replace("_","."));
}else{
system.ios = 2; //不能真正检测出来，所以只能猜测
}
}
//检测安卓版本
if(/Android (\d+.\d+)/.test(ua)){
system.android = parseFloat(RegExp["$1"]);
}
//检测游戏系统
system.wii = ua.indexOf("wii") > -1;
system.ps = /playstation/i.test(ua);
window.iClient.engine = engine;
window.iClient.browser = browser;
window.iClient.system = system;
})();

再给大家一个简单点的实例：判断windows、linux、android

<html>
<head>
<title>判断操作系统</title>
<script type="text/javascript">
function detectOS() {
var sUserAgent = navigator.userAgent;
var isWin = (navigator.platform == "Win32") || (navigator.platform == "Windows");
var isMac = (navigator.platform == "Mac68K") || (navigator.platform == "MacPPC") || (navigator.platform == "Macintosh") || (navigator.platform == "MacIntel");
if (isMac) return "Mac";
var isUnix = (navigator.platform == "X11") && !isWin && !isMac;
if (isUnix) return "Unix";
var isLinux = (String(navigator.platform).indexOf("Linux") > -1);
var bIsAndroid = sUserAgent.toLowerCase().match(/android/i) == "android";
if (isLinux) {
if(bIsAndroid) return "Android";
else return "Linux";
}
if (isWin) {
var isWin2K = sUserAgent.indexOf("Windows NT 5.0") > -1 || sUserAgent.indexOf("Windows 2000") > -1;
if (isWin2K) return "Win2000";
var isWinXP = sUserAgent.indexOf("Windows NT 5.1") > -1 ||
sUserAgent.indexOf("Windows XP") > -1;
if (isWinXP) return "WinXP";
var isWin2003 = sUserAgent.indexOf("Windows NT 5.2") > -1 || sUserAgent.indexOf("Windows 2003") > -1;
if (isWin2003) return "Win2003";
var isWinVista= sUserAgent.indexOf("Windows NT 6.0") > -1 || sUserAgent.indexOf("Windows Vista") > -1;
if (isWinVista) return "WinVista";
var isWin7 = sUserAgent.indexOf("Windows NT 6.1") > -1 || sUserAgent.indexOf("Windows 7") > -1;
if (isWin7) return "Win7";
}
return "other";
}
document.writeln("您的操作系统是：" + detectOS());
alert(detectOS());
</script>
</head>
<body>
</body>
</html>

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