java 获取ip

 
获取ip信息

1. public static String getRealIp(HttpServletRequest request) {
2.         String ip = request.getHeader("x-forwarded-for");
3.         if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
4.             ip = request.getHeader("Proxy-Client-IP");
5.         }
6.         if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
7.             ip = request.getHeader("WL-Proxy-Client-IP");
8.         }
9.         if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
10.             ip = request.getRemoteAddr();
11.         }
12.         return ip.equals("0:0:0:0:0:0:0:1") ? "127.0.0.1" : ip;
13.     }

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