java 获取IP地址
public class IPUtils {
public static String getIpAddr(HttpServletRequest request) {
try {
String 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 || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
ip = request.getHeader("http_client_ip");
}
if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
ip = request.getHeader("HTTP_X_FORWARDED_FOR");
}
if (ip != null && ip.indexOf(",") != -1) {
ip = ip.substring(ip.lastIndexOf(",") + 1, ip.length()).trim();
}
return "0:0:0:0:0:0:0:1".equals(ip) ? "127.0.0.1" : ip;
} catch (Exception e) {
e.printStackTrace();
}
return null;
}
}