javascript通过ip获取物理地址接口
javascript如何通过访问者ip地址获取ip地址对应的物理地址API接口
新浪的IP地址查询接口：http://int.dpool.sina.com.cn/iplookup/iplookup.php?format=js，返回数据结构如下
var remote_ip_info = {"ret":1,"start":"116.1.29.0","end":"116.1.43.255","country":"\u4e2d\u56fd","province":"\u5e7f\u897f","city":"\u6842\u6797","district":"\u4e03\u661f","isp":"\u7535\u4fe1","type":"","desc":""};
新浪多地域测试方法：http://int.dpool.sina.com.cn/iplookup/iplookup.php?format=js&ip=218.192.3.42
var remote_ip_info = {"ret":1,"start":"218.192.0.0","end":"218.192.7.255","country":"\u4e2d\u56fd","province":"\u5e7f\u4e1c","city":"\u5e7f\u5dde","district":"","isp":"\u6559\u80b2\u7f51","type":"\u5b66\u6821","desc":"\u5e7f\u5dde\u5927\u5b66\u7eba\u7ec7\u670d\u88c5\u5b66\u9662"};
搜狐IP地址查询接口（默认GBK）：http://pv.sohu.com/cityjson
var returnCitySN = {"cip": "116.1.39.88", "cid": "450300", "cname": "广西壮族自治区桂林市"};
搜狐IP地址查询接口（可设置编码）：http://pv.sohu.com/cityjson?ie=utf-8
var returnCitySN = {"cip": "116.1.39.88", "cid": "450300", "cname": "广西壮族自治区桂林市"};
号称是google的，验证了可以用，只是返回的是函数，不是JSON结构。http://j.maxmind.com/app/geoip.js
function geoip_country_code() { return 'CN'; }
function geoip_country_name() { return 'China'; }
function geoip_city() { return 'Guilin'; }
function geoip_region() { return '16'; }
function geoip_region_name() { return 'Guangxi'; }
function geoip_latitude() { return '25.2819'; }
function geoip_longitude() { return '110.2864'; }
function geoip_postal_code() { return ''; }
function geoip_area_code() { return ''; }
function geoip_metro_code() { return ''; }
示例，搜狐API
<script type="text/javascript" src="http://pv.sohu.com/cityjson?ie=utf-8" charset="utf-8"></script>
<script type="text/javascript">
window.onload = function () {
document.body.appendChild(document.createTextNode('['+returnCitySN.cname+"]的朋友，您好！"));
}
</script>
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