UserAgentUtils-1.2.4.jar下载

代码：

//获取浏览器信息
String ua = request.getHeader("User-Agent");
//转成UserAgent对象
UserAgent userAgent = UserAgent.parseUserAgentString(ua); 
//获取浏览器信息
Browser browser = userAgent.getBrowser();  
//获取系统信息
OperatingSystem os = userAgent.getOperatingSystem();
//系统名称
String system = os.getName();
//浏览器名称
String browserName = browser.getName();

<dependency>
    <groupId>nl.bitwalker</groupId>
    <artifactId>UserAgentUtils</artifactId>
    <version>1.2.4</version>
</dependency>