在JSP里，获取客户端的IP地址的方法是：request.getRemoteAddr()，这种方法在大部分情况下都是有效的。但是在通过了Apache，Squid ...
This Java library enables user to query for an enriched data set, such as country, region, district, city, latitude & longitude, ZIP code, time zone, ASN, ISP, domain ...
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