public class IpUtils{
/**
* 获取ip地址
* @param request
* @return
*/
public static String getIpAddr(HttpServletRequest request) {
String ip = request.getHeader("x-forwarded-for");
if (ip != null && !ip.isEmpty()) {
ip = ip.split(",")[0].trim();
}
if(ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
ip = request.getHeader("PRoxy-Client-IP");
}
if(ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
ip = request.getHeader("WL-Proxy-Client-IP");
}
if(ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
ip = request.getRemoteAddr();
}
return ip;
}
}
根据ip获取地理位置/天气信息等：
http://www.jb51.net/article/54287.htm
http://blog.csdn.net/wssiqi/article/details/8550951
原文：http://my.oschina.net/u/2001537/blog/356318