JS获取本机IP地址

2021/02/17 13:31 Web 极四维博客 346 0
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JS获取本地ip地址，可能部分浏览器无法使用。

<!DOCTYPE html>
<html>
<head>
    <title></title>
</head>
<body>

</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>

来源：https://blog.csdn.net/qq_37837478/article/details/82966064