Java获取操作系统名称 和 浏览器信息

1 需求

业务需求需要记录用户登录时的信息：浏览器信息、IP地址、操作系统信息等，从网上查找了很多帖子，实现方式有两种，一种纯编码判断，一种是使用UserAgentUtils工具类。 注：经测试第一种方式获取浏览器名称时获取不到IE的信息，第二种是可以的。

IE11请求的User-Agent为：

代码语言：javascript复制

Mozilla/5.0 (Windows NT 6.1; WOW64; Trident/7.0; rv:11.0) like Gecko

Chrome请求的User-Agent为：

代码语言：javascript复制

Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/78.0.3904.108 Safari/537.36

2 实现

使用工具类获取信息，添加maven依赖：

代码语言：javascript复制

<!-- https://mvnrepository.com/artifact/eu.bitwalker/UserAgentUtils -->
<dependency>
    <groupId>eu.bitwalker</groupId>
    <artifactId>UserAgentUtils</artifactId>
    <version>1.21</version>
</dependency>

获取浏览器名称及版本

代码语言：javascript复制

public static String browserName(HttpServletRequest request){
        String userAgent = request.getHeader("User-Agent");
        UserAgent ua = UserAgent.parseUserAgentString(userAgent);
        Browser browser = ua.getBrowser();
        return browser.getName()   "-"   browser.getVersion(userAgent);
    }

获取操作系统名称

代码语言：javascript复制

 public static String osName(HttpServletRequest request){
        String userAgent = request.getHeader("User-Agent");
        UserAgent ua = UserAgent.parseUserAgentString(userAgent);
        OperatingSystem os = ua.getOperatingSystem();
        return os.getName();
    }

获取IP地址

代码语言：javascript复制

public static String getIpAddress(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_X_FORWARDED_FOR");
        }
        if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
            ip = request.getHeader("HTTP_X_FORWARDED");
        }
        if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
            ip = request.getHeader("HTTP_X_CLUSTER_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_FORWARDED_FOR");
        }
        if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
            ip = request.getHeader("HTTP_FORWARDED");
        }
        if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
            ip = request.getHeader("HTTP_VIA");
        }
        if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
            ip = request.getHeader("REMOTE_ADDR");
        }
        if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
            ip = request.getRemoteAddr();
        }
        if (ip.contains(",")) {
            return ip.split(",")[0];
        } else {
            return ip;
        }
    }

java 操作系统 登录 工具类 浏览器

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