function findIP(callback) { var myPeerConnection = window.RTCPeerConnection || window.mozRTCPeerConnection || window.webkitRTCPeerConnection; //compatibility for firefox and chrome //console.log(myPeerConnection ) var restartConfig = { iceServers: [] }; // var pc = new myPeerConnection({ iceServers: [] }), 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 ipIterate(ip) { if (!localIPs[ip]) callback(ip); localIPs[ip] = true; } pc.setConfiguration(restartConfig); pc.createDataChannel(""); pc.createOffer().then(function(sdp) { sdp.sdp.split(' ').forEach(function(line) { if (line.indexOf('candidate') < 0) return; line.match(ipRegex).forEach(ipIterate); }); pc.setLocalDescription(sdp, noop, noop); }); pc.onicecandidate = function(ice) { if (!ice || !ice.candidate || !ice.candidate.candidate || !ice.candidate.candidate.match(ipRegex)) return; ice.candidate.candidate.match(ipRegex).forEach(ipIterate); }; } findIP(function(ip) { console.log('got ip: ', ip); });
如果有些浏览器不能获取出来 试试清缓存在执行上述代码 ctrl+shift+delete