JavaScript获取客户端IP地址

参考：https://www.cnblogs.com/fangsmile/p/7307463.html

2) api.ipify.org

https://api.ipify.org/?format=jsonp&callback=getIP

1 <script type="application/javascript">
2   function getIP(json) {
3     document.write("My public IP address is: ", json.ip);
4   }
5 </script>
6 
7 <script type="application/javascript" src="https://api.ipify.org?format=jsonp&callback=getIP"></script>

或者

1 $.getJSON('https://api.ipify.org?format=json', function(data){
2     console.log(data.ip);
3 });