public static String getRemoteIP(HttpServletRequest request) {
String ip =null;
if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
ip = request.getHeader("X-Forwarded-For");
}
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();
}
if (ip != null) {
//对于通过多个代理的情况,最后IP为客户端真实IP,多个IP按照','分割
int position = ip.indexOf(",");
if (position > 0) {
ip = ip.substring(0, position);
}
}
return ip;
}
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