package com.hxzk.util;


import org.apache.commons.lang.ArrayUtils;
import org.apache.commons.lang.StringUtils;

import javax.servlet.http.HttpServletRequest;

    /**
     * 获取用户访问ip地址
     */
    public class IpUtil {
        public static String getIpAddress(HttpServletRequest request) {
            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.getHeader("HTTP_CLIENT_IP");
            }
            if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
                ip = request.getHeader("HTTP_X_FORWARDED_FOR");
            }
            if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
                ip = request.getRemoteAddr();
            }
            // 获取到多个ip时取第一个作为客户端真实ip
            if (StringUtils.isNotEmpty(ip) && ip.contains(",")) {
                String[] ipArray = ip.split(",");
                if (ArrayUtils.isNotEmpty(ipArray)) {
                    ip = ipArray[0];
                }
            }
            return ip;
        }
}