java获取访问者的IP

来源：互联网发布：sony vegas mac 编辑：程序博客网时间：2024/05/20 13:15

public String getIp(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();    if ("127.0.0.1".equals(ip) || "0:0:0:0:0:0:0:1".equals(ip)){        try {            ip= InetAddress.getLocalHost().getHostAddress();        }        catch (UnknownHostException e) {        e.printStackTrace();        }    }return ip}

/**     * 获取访问者IP     *      * 在一般情况下使用Request.getRemoteAddr()即可，但是经过nginx等反向代理软件后，这个方法会失效。     *      * 本方法先从Header中获取X-Real-IP，如果不存在再从X-Forwarded-For获得第一个IP(用,分割)，     * 如果还不存在则调用Request .getRemoteAddr()。     *      * @param request     * @return     */    public static String getIpAddr(HttpServletRequest request) {        String ip = request.getHeader("X-Real-IP");        if (!StringUtils.isBlank(ip) && !"unknown".equalsIgnoreCase(ip)) {            return ip;        }        ip = request.getHeader("X-Forwarded-For");        if (!StringUtils.isBlank(ip) && !"unknown".equalsIgnoreCase(ip)) {            // 多次反向代理后会有多个IP值，第一个为真实IP。            int index = ip.indexOf(',');            if (index != -1) {                return ip.substring(0, index);            } else {                return ip;            }        } else {            return request.getRemoteAddr();        }    }

0 0