<dependency>

    <groupId>eu.bitwalker</groupId>

    <artifactId>UserAgentUtils</artifactId>

    <version>1.20</version>

</dependency>

package com.test;

import eu.bitwalker.useragentutils.Browser;

import eu.bitwalker.useragentutils.OperatingSystem;

import eu.bitwalker.useragentutils.UserAgent;

import eu.bitwalker.useragentutils.Version;

import javax.servlet.http.HttpServletRequest;

import java.net.InetAddress;

import java.net.UnknownHostException;

public class IpAndAddrUtil {

    /**

     * 获取发起请求的IP地址

     */

    public static String getIp(HttpServletRequest request) {

        String ip = null;

        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.equals("127.0.0.1")) {

                InetAddress inet = null;

                try {

                    inet = InetAddress.getLocalHost();

                } catch (UnknownHostException e) {

                    e.printStackTrace();

                }

                ip = inet.getHostAddress();

            }

        }

        if ((ip != null) && (ip.length() > 15)) {

            if (ip.indexOf(",") > 0) {

                ip = ip.substring(0, ip.indexOf(","));

            }

        }

        return ip;

    }

    /**

     * 获取发起请求的浏览器名称

     */

    public static String getBrowserName(HttpServletRequest request) {

        String header = request.getHeader("User-Agent");

        UserAgent userAgent = UserAgent.parseUserAgentString(header);

        Browser browser = userAgent.getBrowser();

        return browser.getName();

    }

    /**

     * 获取发起请求的浏览器版本号

     */

    public static String getBrowserVersion(HttpServletRequest request) {

        String header = request.getHeader("User-Agent");

        UserAgent userAgent = UserAgent.parseUserAgentString(header);

        // 获取浏览器信息

        Browser browser = userAgent.getBrowser();

        // 获取浏览器版本号

        Version version = browser.getVersion(header);

        return version.getVersion();

    }

    /**

     * 获取发起请求的操作系统名称

     */

    public static String getOsName(HttpServletRequest request) {

        String header = request.getHeader("User-Agent");

        UserAgent userAgent = UserAgent.parseUserAgentString(header);

        OperatingSystem operatingSystem = userAgent.getOperatingSystem();

        return operatingSystem.getName();

    }

}