一、简述

项目部署之后，通过代码获取的系统参数均为服务端的系统环境，并不能直接获取到客户端的系统参数。因此需要利用HttpServletRequest获取到请求头，其中User-Agent包含了浏览器信息，并且可以获取到操作系统的相关信息。

首先，为了操作简单使用了Hutool工具包，里面有很多集成得到工具类，方便可开发时的代码量。其中，就有解析User-Agent的方法，类似的工具有很多，不喜欢引入的可以不引用，自己写也是一样的。

二、HTTP请求头和响应头注解

| referrer | 是HTTP请求header的报文头，用于指明当前流量的来源参考页面。通过这个信息，我们可以知道访客是怎么来到当前页面的。 |
| X-Client-Data | 谷歌专用，用来追寻使用者问题。 |

三、代码

1、调用方法

User-Agent中包含很多信息，一下直接打印，根据需要可以自己进行选择。若是获取系统类型，直接执行**ua.getPlatform().toString()**即可。

<dependency>
    <groupId>cn.hutool</groupId>
    <artifactId>hutool-all</artifactId>
    <version>5.8.4</version>
</dependency>
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@GetMapping("print")
public void toPrint(HttpServletRequest requeste){
	System.out.println("--------------------------服务端信息-----------------------------");
	SystemUtil.dumpSystemInfo();
	System.out.println("--------------------------客户端信息-----------------------------");
	UserAgent ua = UserAgentUtil.parse(request.getHeader(Header.USER_AGENT.toString()));
	System.out.println(ua.getPlatform().toString());
	System.out.println(JSONUtil.toJsonStr(ua));
}
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2、辅助代码

以下代码不影响获取系统参数，只是添加了一些帮助功能，方便实用而已。

读取请求头信息

public Map<String, String> getHeadersInfo(HttpServletRequest request) {
        Map<String, String> map = new HashMap<String, String>();
        Enumeration headerNames = request.getHeaderNames();
        while (headerNames.hasMoreElements()) {
            String key = (String) headerNames.nextElement();
            String value = request.getHeader(key);
            map.put(key, value);
        }
        return map;
    }
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操作系统类型工具类

下边我添加了判断客户端操作系统的接口，只有PC端。但是判断移动端的方法Hutool工具包中UserAgent已经有了。

import cn.hutool.core.collection.CollUtil;

import java.util.List;

/**
 * 操作系统类型
 */
public class OSType {
    
    public static final String Windows = "Windows";
    public static final String Linux = "Linux";
    /**
     * OSX(Mac OSX)是美国苹果公司于2013年公布的OS X操作系统
     */
    public static final String OSX = "OSX";
    public static final String Mac = "Mac";
    public static final String Unix = "Unix";
    public static final String Android = "Android";
    /**
     * Wii是任天堂公司2006年11月19日推出的家用游戏机
     */
    public static final String Wii = "Wii";
    public static final String PS3 = "PS3";
    public static final String PSP = "PSP";
    public static final String iPod = "iPod";
    public static final String iPad = "iPad";
    public static final String iPhone = "iPhone";
    public static final String YPod = "YPod";
    public static final String YPad = "YPad";
    public static final String YPhone = "YPhone";
    public static final String Symbian = "Symbian";
    public static final String Darwin = "Darwin";
    public static final String Adobe_Air = "Adobe Air";
    public static final String Java = "Java";
    public static final String GoogleTV = "GoogleTV";
    public static final String Windows_Phone = "Windows Phone";

    /**
     * Linux系统，主要分debian系和redhat系，还有其它自由的发布版本。
     */
    public static final List<String> linuxs = CollUtil.newArrayList("Debian","Ubuntu","Mint","RedHat","Fedora","CentOs","Slackware","Gentoo","Arch linux","LFS","SUSE");

    /**
     * Windows系统，主要的发布版本。
     */
    public static final List<String> windows = CollUtil.newArrayList("Windows 11","Windows 10","Windows 8.1","Windows 8","Windows 7","Windows 2003","Windows 2000","Windows 98","Windows Vista","Windows XP","Windows Server 2008R2","Windows Server 2012","Windows Server 2012R2","Windows Server 2016");

    /**
     * 移动平台类型
     */
    public static final List<String> mobiles = CollUtil.newArrayList(Android,Windows_Phone,iPod,iPad,iPhone,GoogleTV,"htcFlyer","Symbian","Blackberry");

    /**
     * 客户端系统是否为Windows --> 系统为Windows或主要的发布版本
     * @param os Windows
     * @return
     */
    public static boolean isWindows(String os){
        return (OSType.Windows.equals(os) || windows.contains(os)) ? true : false;
    }

    /**
     * 客户端系统是否为Linux --> 系统为Linux或各发布版本
     * debian系:Debian,Ubuntu,Mint,
     * redhat系:RedHat,Fedora,CentOs
     * 其它自由的发布版本:Slackware,Gentoo,Arch linux,LFS,SUSE
     * @param os Linux
     * @return
     */
    public static boolean isLinux(String os){
        return (OSType.Linux.equals(os) || linuxs.contains(os)) ? true : false;
    }

}
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效果

--------------------------服务端信息-----------------------------
--------------
JavaVM Spec. Name:    Java Virtual Machine Specification
JavaVM Spec. Version: 1.8
JavaVM Spec. Vendor:  Oracle Corporation

--------------
JavaVM Name:    Java HotSpot(TM) 64-Bit Server VM
JavaVM Version: 25.311-b11
JavaVM Vendor:  Oracle Corporation
JavaVM Info:    mixed mode

--------------
Java Spec. Name:    Java Platform API Specification
Java Spec. Version: 1.8
Java Spec. Vendor:  Oracle Corporation

--------------
Java Version:    1.8.0_311
Java Vendor:     Oracle Corporation
Java Vendor URL: http://java.oracle.com/

--------------
Java Runtime Name:      Java(TM) SE Runtime Environment
Java Runtime Version:   1.8.0_311-b11
Java Home Dir:          C:\Program Files\Java\jdk1.8.0_311\jre
Java Extension Dirs:    C:\Program Files\Java\jdk1.8.0_311\jre\lib\ext;C:\Windows\Sun\Java\lib\ext
Java Endorsed Dirs:     C:\Program Files\Java\jdk1.8.0_311\jre\lib\endorsed
Java Class Path:        C:\Program Files\Java\jdk1.8.0_311\jre\lib\charsets.jar;C:\Program Files\Java\jdk1.8.0_311\jre\lib\deploy.jar;C:\Program Files\Java\jdk1.8.0_311\jre\lib\ext\access-bridge-64.jar;C:\Program Files\Java\jdk1.8.0_311\jre\lib\ext\cldrdata.jar;C:\Program Files\Java\jdk1.8.0_311\jre\lib\ext\dnsns.jar;C:\Program Files\Java\jdk1.8.0_311\jre\lib\ext\jaccess.jar;C:\Program Files\Java\jdk1.8.0_311\jre\lib\ext\jfxrt.jar;C:\Program Files\Java\jdk1.8.0_311\jre\lib\ext\localedata.jar;C:\Program Files\Java\jdk1.8.0_311\jre\lib\ext\nashorn.jar;C:\Program Files\Java\jdk1.8.0_311\jre\lib\ext\sunec.jar;C:\Program Files\Java\jdk1.8.0_311\jre\lib\ext\sunjce_provider.jar;C:\Program Files\Java\jdk1.8.0_311\jre\lib\ext\sunmscapi.jar;C:\Program Files\Java\jdk1.8.0_311\jre\lib\ext\sunpkcs11.jar;C:\Program Files\Java\jdk1.8.0_311\jre\lib\ext\zipfs.jar;C:\Program Files\Java\jdk1.8.0_311\jre\lib\javaws.jar;C:\Program Files\Java\jdk1.8.0_311\jre\lib\jce.jar;C:\Program Files\Java\jdk1.8.0_311\jre\lib\jfr.jar;C:\Program Files\Java\jdk1.8.0_311\jre\lib\jfxswt.jar;C:\Program Files\Java\jdk1.8.0_311\jre\lib\jsse.jar;C:\Program Files\Java\jdk1.8.0_311\jre\lib\management-agent.jar;C:\Program Files\Java\jdk1.8.0_311\jre\lib\plugin.jar;C:\Program Files\Java\jdk1.8.0_311\jre\lib\resources.jar;C:\Program Files\Java\jdk1.8.0_311\jre\lib\rt.jar;D:\Data\Code\IdeaProjects\TestBootDemo\target\classes;D:\Data\Repository\maven\org\springframework\boot\spring-boot-starter-web\2.7.0\spring-boot-starter-web-2.7.0.jar;D:\Data\Repository\maven\org\springframework\boot\spring-boot-starter\2.7.0\spring-boot-starter-2.7.0.jar;D:\Data\Repository\maven\org\springframework\boot\spring-boot-starter-logging\2.7.0\spring-boot-starter-logging-2.7.0.jar;D:\Data\Repository\maven\ch\qos\logback\logback-classic\1.2.11\logback-classic-1.2.11.jar;D:\Data\Repository\maven\ch\qos\logback\logback-core\1.2.11\logback-core-1.2.11.jar;D:\Data\Repository\maven\org\apache\logging\log4j\log4j-to-slf4j\2.17.2\log4j-to-slf4j-2.17.2.jar;D:\Data\Repository\maven\org\apache\logging\log4j\log4j-api\2.17.2\log4j-api-2.17.2.jar;D:\Data\Repository\maven\org\slf4j\jul-to-slf4j\1.7.36\jul-to-slf4j-1.7.36.jar;D:\Data\Repository\maven\jakarta\annotation\jakarta.annotation-api\1.3.5\jakarta.annotation-api-1.3.5.jar;D:\Data\Repository\maven\org\yaml\snakeyaml\1.30\snakeyaml-1.30.jar;D:\Data\Repository\maven\org\springframework\boot\spring-boot-starter-json\2.7.0\spring-boot-starter-json-2.7.0.jar;D:\Data\Repository\maven\com\fasterxml\jackson\core\jackson-databind\2.13.3\jackson-databind-2.13.3.jar;D:\Data\Repository\maven\com\fasterxml\jackson\core\jackson-annotations\2.13.3\jackson-annotations-2.13.3.jar;D:\Data\Repository\maven\com\fasterxml\jackson\core\jackson-core\2.13.3\jackson-core-2.13.3.jar;D:\Data\Repository\maven\com\fasterxml\jackson\datatype\jackson-datatype-jdk8\2.13.3\jackson-datatype-jdk8-2.13.3.jar;D:\Data\Repository\maven\com\fasterxml\jackson\datatype\jackson-datatype-jsr310\2.13.3\jackson-datatype-jsr310-2.13.3.jar;D:\Data\Repository\maven\com\fasterxml\jackson\module\jackson-module-parameter-names\2.13.3\jackson-module-parameter-names-2.13.3.jar;D:\Data\Repository\maven\org\springframework\boot\spring-boot-starter-tomcat\2.7.0\spring-boot-starter-tomcat-2.7.0.jar;D:\Data\Repository\maven\org\apache\tomcat\embed\tomcat-embed-core\9.0.63\tomcat-embed-core-9.0.63.jar;D:\Data\Repository\maven\org\apache\tomcat\embed\tomcat-embed-el\9.0.63\tomcat-embed-el-9.0.63.jar;D:\Data\Repository\maven\org\apache\tomcat\embed\tomcat-embed-websocket\9.0.63\tomcat-embed-websocket-9.0.63.jar;D:\Data\Repository\maven\org\springframework\spring-web\5.3.20\spring-web-5.3.20.jar;D:\Data\Repository\maven\org\springframework\spring-beans\5.3.20\spring-beans-5.3.20.jar;D:\Data\Repository\maven\org\springframework\spring-webmvc\5.3.20\spring-webmvc-5.3.20.jar;D:\Data\Repository\maven\org\springframework\spring-aop\5.3.20\spring-aop-5.3.20.jar;D:\Data\Repository\maven\org\springframework\spring-context\5.3.20\spring-context-5.3.20.jar;D:\Data\Repository\maven\org\springframework\spring-expression\5.3.20\spring-expression-5.3.20.jar;D:\Data\Repository\maven\org\springframework\boot\spring-boot-devtools\2.7.0\spring-boot-devtools-2.7.0.jar;D:\Data\Repository\maven\org\springframework\boot\spring-boot\2.7.0\spring-boot-2.7.0.jar;D:\Data\Repository\maven\org\springframework\boot\spring-boot-autoconfigure\2.7.0\spring-boot-autoconfigure-2.7.0.jar;D:\Data\Repository\maven\org\projectlombok\lombok\1.18.24\lombok-1.18.24.jar;D:\Data\Repository\maven\org\slf4j\slf4j-api\1.7.36\slf4j-api-1.7.36.jar;D:\Data\Repository\maven\org\springframework\spring-core\5.3.20\spring-core-5.3.20.jar;D:\Data\Repository\maven\org\springframework\spring-jcl\5.3.20\spring-jcl-5.3.20.jar;D:\Data\Repository\maven\cn\hutool\hutool-all\5.8.3\hutool-all-5.8.3.jar;D:\Soft\JetBrains\IntelliJ IDEA 2021.2\lib\idea_rt.jar;C:\Users\ZhiPengyu\AppData\Local\JetBrains\IntelliJIdea2021.2\captureAgent\debugger-agent.jar
Java Class Version:     52.0
Java Library Path:      C:\Program Files\Java\jdk1.8.0_311\bin;C:\Windows\Sun\Java\bin;C:\Windows\system32;C:\Windows;D:\Soft\oraclexe\app\oracle\product\11.2.0\server\bin;;C:\Windows\system32;C:\Windows;C:\Windows\System32\Wbem;C:\Windows\System32\WindowsPowerShell\v1.0\;C:\Windows\System32\OpenSSH\;C:\Program Files\Java\jdk1.8.0_311\bin;C:\Program Files\Java\jdk1.8.0_311\jre\bin;D:\Runtimes\apache-maven-3.8.4\bin;D:\Soft\TortoiseSVN\bin;D:\Soft\nodejs\;D:\Soft\Git\cmd;C:\Program Files\TortoiseGit\bin;D:\Runtimes\gradle-7.3.3\bin;D:\Soft\NetSarang\Xftp 7\;D:\Soft\NetSarang\Xshell 7\;C:\Users\ZhiPengyu\AppData\Local\Microsoft\WindowsApps;;D:\Soft\JetBrains\IntelliJ IDEA 2021.2\bin;;C:\Users\ZhiPengyu\AppData\Roaming\npm;.
Java Protocol Packages: [n/a]

--------------
OS Arch:        amd64
OS Name:        Windows 10
OS Version:     10.0
File Separator: \
Line Separator: 

Path Separator: ;

--------------
User Name:        xxxxxxxx\
User Home Dir:    C:\Users\xxxxxxx\
User Current Dir: D:\Data\Code\IdeaProjects\TestBootDemo\
User Temp Dir:    C:\Users\xxxxxx~1\AppData\Local\Temp\
User Language:    zh
User Country:     CN

--------------
Host Name:    DESKTOP-F32HOFJ
Host Address: xxxxxxxx

--------------
Max Memory:    6.93 GB
Total Memory:     467.5 MB
Free Memory:     445 MB
Usable Memory:     6.91 GB

--------------
--------------------------客户端信息-----------------------------
Windows
{"mobile":false,"browser":{"name":"Chrome","pattern":"chrome"},"version":"103.0.0.0","platform":{"name":"Windows","pattern":"windows"},"os":{"name":"Windows 10 or Windows Server 2016","pattern":"windows nt 10\\.0"},"osVersion":"10.0","engine":{"name":"Webkit","pattern":"webkit"},"engineVersion":"537.36"}

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