package org.javamaster.b2c.core.utils;

import javax.servlet.http.HttpServletRequest;

/**
 * @author yudong
 * @date 2019/6/10
 */
public class IpUtils {

    /**
     * 获取IP地址
     *
     * @param request
     * @return
     */
    public static String getIpAddr(HttpServletRequest request) {
        String ip = request.getHeader("x-forwarded-for");
        String unknown = "unknown";
        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;
    }

}
