2020-11-08

Java通过获取useragent来判断设备。源码以及依赖

在学登录模块的时候经常会用到判断用户是什么设备，这时候我们可以使用一个工具类，我上学时用的，还是挺好用的，分享给大家。

import cz.mallat.uasparser.OnlineUpdater;
import cz.mallat.uasparser.UASparser;
import cz.mallat.uasparser.UserAgentInfo;

import java.io.IOException;

/**
 * 本类实现了UASparser的单例，该实例可通过分析user-agent信息判断当前Http请求的客户端浏览器类型
 *
 * @author
 */
public class UserAgentUtil {

    private static UASparser uasParser = null;

    public static UASparser getUasParser() {
        if (uasParser == null) {
            try {
                uasParser = new UASparser(OnlineUpdater.getVendoredInputStream());
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
        return uasParser;
    }
	/*// 初始化uasParser对象
	static {
		try {
			uasParser = new UASparser(OnlineUpdater.getVendoredInputStream());
		} catch (IOException e) {
			e.printStackTrace();
		}
	}*/

    /**
     * 是否移动设备
     *
     * @param agent
     * @return
     */
    public static boolean CheckAgent(String agent) {
        boolean flag = false;

        String[] keywords = {"Android", "iPhone", "iPod", "iPad",
                "Windows Phone", "MQQBrowser"};

        // 排除 Windows 桌面系统
        if (!agent.contains("Windows NT")
                || (agent.contains("Windows NT") && agent
                .contains("compatible; MSIE 9.0;"))) {
            // 排除 苹果桌面系统
            if (!agent.contains("Windows NT") && !agent.contains("Macintosh")) {
                for (String item : keywords) {
                    if (agent.contains(item)) {
                        flag = true;
                        break;
                    }
                }
            }
        }

        return flag;
    }

    public static void main(String[] args) {
        // String str =
        // "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/44.0.2403.130 Safari/537.36";
        // String
        // str="Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/57.0.2987.133 Safari/537.36";
        //String str = "Mozilla/5.0 (iPhone; U; CPU iPhone OS 4_3_3 like Mac OS X; en-us) AppleWebKit/533.17.9 (KHTML, like Gecko) Version/5.0.2 Mobile/8J2 Safari/6533.18.5";
        String str = "";
        System.out.println(str);
        try {
            UserAgentInfo userAgentInfo = UserAgentUtil.uasParser.parse(str);
            System.out.println("操作系统名称：" + userAgentInfo.getOsFamily());//
            System.out.println("操作系统：" + userAgentInfo.getOsName());//
            System.out.println("浏览器名称：" + userAgentInfo.getUaFamily());//
            System.out.println("浏览器版本：" + userAgentInfo.getBrowserVersionInfo());//
            System.out.println("设备类型：" + userAgentInfo.getDeviceType());
            System.out.println("浏览器:" + userAgentInfo.getUaName());
            System.out.println("类型：" + userAgentInfo.getType());

        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}

需要引用的依赖

<dependency>
		<groupId>cz.mallat.uasparser</groupId>
		<artifactId>uasparser</artifactId>
		<version>0.6.0</version>
</dependency>

本文地址：https://blog.csdn.net/m0_45232700/article/details/109565814