1、引入依賴

<!--fastjson依賴-->
<dependency>
    <groupId>com.alibaba</groupId>
    <artifactId>fastjson</artifactId>
    <version>1.2.73</version>
</dependency>
<!--bitwalker依賴-->
<dependency>
    <groupId>eu.bitwalker</groupId>
    <artifactId>UserAgentUtils</artifactId>
    <version>1.21</version>
</dependency>

2、獲取資料

import com.alibaba.fastjson.JSONObject;
import eu.bitwalker.useragentutils.Browser;
import eu.bitwalker.useragentutils.OperatingSystem;
import eu.bitwalker.useragentutils.UserAgent;
import eu.bitwalker.useragentutils.Version;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.net.InetAddress;
import java.net.UnknownHostException;

@RestController
public class TestController {

    @GetMapping(value = {"/", "/index"})
    public JSONObject index(HttpServletRequest request, HttpServletResponse response) {
        /*獲取請求IP*/
        String requestIp = IpAndAddrUtil.getIp(request);
        /*獲取發起請求的瀏覽器版本號*/
        String browserVersion = IpAndAddrUtil.getBrowserVersion(request);
        /*獲取發起請求的作業系統名稱*/
        String osName = IpAndAddrUtil.getOsName(request);
        /*獲取發起請求的瀏覽器名稱*/
        String browserName = IpAndAddrUtil.getBrowserName(request);

        JSONObject jsonObject = new JSONObject();
        jsonObject.put("ip", requestIp);
        jsonObject.put("browserVersion", browserVersion);
        jsonObject.put("osName", osName);
        jsonObject.put("browserName", browserName);

        return jsonObject;
    }
}


/**
 * 獲取請求IP地址、瀏覽器相關資訊
 */
class IpAndAddrUtil {
    /**
     * 獲取發起請求的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;
    }

    /**
     * 獲取發起請求的瀏覽器名稱
     */
    public static String getBrowserName(HttpServletRequest request) {
        String header = request.getHeader("User-Agent");
        UserAgent userAgent = UserAgent.parseUserAgentString(header);
        Browser browser = userAgent.getBrowser();
        return browser.getName();
    }

    /**
     * 獲取發起請求的瀏覽器版本號
     */
    public static String getBrowserVersion(HttpServletRequest request) {
        String header = request.getHeader("User-Agent");
        UserAgent userAgent = UserAgent.parseUserAgentString(header);
        //獲取瀏覽器資訊
        Browser browser = userAgent.getBrowser();
        //獲取瀏覽器版本號
        Version version = browser.getVersion(header);
        return version.getVersion();
    }

    /**
     * 獲取發起請求的作業系統名稱
     */
    public static String getOsName(HttpServletRequest request) {
        String header = request.getHeader("User-Agent");
        UserAgent userAgent = UserAgent.parseUserAgentString(header);
        OperatingSystem operatingSystem = userAgent.getOperatingSystem();
        return operatingSystem.getName();
    }
}