JS判斷訪問設備、客戶端操做系統類型

時間 2019-11-24

原文原文鏈接

先給出一個實例：判斷windows、linux、androidjavascript

複製如下代碼另存爲html文件便可。html

<html>
<head>
<title>判斷操做系統</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("您的操做系統是：" + detectOS()); 
alert(detectOS());
</script>
</head>
<body>
</body>
</html>

判斷當前訪問網站的設備是不是PCjava

//平臺、設備和操做系統
var system ={
win : false,
mac : false,
xll : false
};
//檢測平臺
var p = navigator.platform;
system.win = p.indexOf("Win") == 0;
system.mac = p.indexOf("Mac") == 0;
system.x11 = (p == "X11") || (p.indexOf("Linux") == 0);
//跳轉語句
if(system.win||system.mac||system.xll){
alert("PC訪問");
}else{
alert("非PC訪問");
}

JS判斷訪問設備(userAgent)加載不一樣頁面。代碼以下：linux

function browserRedirect() {
var sUserAgent = navigator.userAgent.toLowerCase();
var bIsIpad = sUserAgent.match(/ipad/i) == "ipad";
var bIsIphoneOs = sUserAgent.match(/iphone os/i) == "iphone os";
var bIsMidp = sUserAgent.match(/midp/i) == "midp";
var bIsUc7 = sUserAgent.match(/rv:1.2.3.4/i) == "rv:1.2.3.4";
var bIsUc = sUserAgent.match(/ucweb/i) == "ucweb";
var bIsAndroid = sUserAgent.match(/android/i) == "android";
var bIsCE = sUserAgent.match(/windows ce/i) == "windows ce";
var bIsWM = sUserAgent.match(/windows mobile/i) == "windows mobile";
if (! (bIsIpad || bIsIphoneOs || bIsMidp || bIsUc7 || bIsUc || bIsAndroid || bIsCE || bIsWM)) {
window.location.href = B頁面;
}
}
browserRedirect();

JS判斷客戶端操做系統類型(platform)來定義不一樣的字體表現。代碼以下：android

// 更詳細的探測當前客戶端使用的操做系統
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);
if (isLinux) 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 isWin2003 = sUserAgent.indexOf("Windows NT 6.0") > -1 || sUserAgent.indexOf("Windows Vista") > -1;
if (isWin2003) return "WinVista"; 
var isWin2003 = sUserAgent.indexOf("Windows NT 6.1") > -1 || sUserAgent.indexOf("Windows 7") > -1;
if (isWin2003) return "Win7";
} 
return "other"; 
}

另外一種方法，使用mootools框架：web

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>
<title>未命名</title>
<meta http-equiv="content-type" content="text/html;charset=utf-8" />
<meta name="generator" content="Geany 0.21" />
</head>
<body>
<h1>test Browser.Platform.linux</h1>
<script type="text/Javascript" language="JavaScript">
var s = null;
s = Browser.Platform.linux;
alert(s);
if (Browser.Platform.linux)
alert("linux");
else
alert("not linux");
</script>
</body>
</html>

使用JS架框有現成的判斷
例如motools架框中：
Browser.Platform.mac - (boolean) 當前操做系統是否爲Mac
Browser.Platform.win - (boolean) 當前操做系統是否爲Windows
Browser.Platform.linux - (boolean) 當前操做系統是否爲Linux
Browser.Platform.ipod - (boolean) 當前操做系統是否爲iPod Touch / iPhone
Browser.Platform.other - (boolean) 當前操做系統即不是Mac, 也不是Windows或Linux
Browser.Platform.name - (string) 當前操做系統的名稱

windows

附：
在WIN7系統下和XP系統下的宋體顯示是不同的、有的時候容易撐破格子
並且WIN7下面微軟雅黑是系統自帶的、效果很好！
如下的代碼能夠方便咱們判斷不一樣的系統在使用不一樣系統裏自帶效果好的字體！或者其它一些東西！
調用辦法

各系統下最佳字體
Win7 and Vista
"Microsoft Yahei",Tahoma
XP
Tahoma, Helvetica, Arial, 'SimSun', sans-serif
MAC
"Helvetica Neue",Helvetica,"Hiragino Sans GB",Arial
淘寶上用的通用的系統字體
Tahoma, Helvetica, Arial, 'Microsoft Yahei', sans-serif框架

參考資料：http://www.camnpr.com/archives/js-judge-device-and-os.htmliphone