2019独角兽企业重金招聘Python工程师标准>>> 
使用js获取客户端本地ip,不需要额外引入别的文件
【注：若IE浏览器不进行安全设置，IE浏览器会默认拦截ActiveX控件的使用，将不会返回客户端的IP地址】
下边的代码使用于通用浏览器，但是IE浏览器必须去设置ActiveX控件。
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>获取客户端IP</title>
</head>
<body>
<div></div>
</body>
<script type="text/javascript">
function getUserIP(onNewIP) { // onNewIp - your listener function for new IPs
//compatibility for firefox and chrome
var myPeerConnection = window.RTCPeerConnection || window.mozRTCPeerConnection || window.webkitRTCPeerConnection;
var pc = new myPeerConnection({
iceServers: []
}),
noop = function() {},
localIPs = {},
ipRegex = /([0-9]{1,3}(\.[0-9]{1,3}){3}|[a-f0-9]{1,4}(:[a-f0-9]{1,4}){7})/g,
key;
function iterateIP(ip) {
if (!localIPs[ip]) onNewIP(ip);
localIPs[ip] = true;
}
//create a bogus data channel
pc.createDataChannel("");
// create offer and set local description
pc.createOffer().then(function(sdp) {
sdp.sdp.split('\n').forEach(function(line) {
if (line.indexOf('candidate') < 0) return;
line.match(ipRegex).forEach(iterateIP);
});
pc.setLocalDescription(sdp, noop, noop);
}).catch(function(reason) {
// An error occurred, so handle the failure to connect
});
//sten for candidate events
pc.onicecandidate = function(ice) {
if (!ice || !ice.candidate || !ice.candidate.candidate || !ice.candidate.candidate.match(ipRegex)) return;
ice.candidate.candidate.match(ipRegex).forEach(iterateIP);
};
}
// Usage
getUserIP(function(ip){
alert("Got IP! :" + ip);
});
</script>
</html>代码放上就能用。