Java获取当前操作系统的信息

女爷i 2022-08-19 01:43 246阅读 0赞

主流有几种方法，一种是用下面的函数  
public static String getProperty(String key)

<table> 
 <thead> 
  <tr> 
   <th align="center">键</th> 
   <th align="center">相关值的描述</th> 
  </tr> 
 </thead> 
 <tbody> 
  <tr> 
   <td align="center">java.version</td> 
   <td align="center">java.version Java 运行时环境版本</td> 
  </tr> 
  <tr> 
   <td align="center">java.vendor</td> 
   <td align="center">java.vendor Java 运行时环境供应商</td> 
  </tr> 
  <tr> 
   <td align="center">java.vendor.url</td> 
   <td align="center">java.vendor.url Java 供应商的 URL</td> 
  </tr> 
  <tr> 
   <td align="center">java.home</td> 
   <td align="center">java.home Java 安装目录</td> 
  </tr> 
  <tr> 
   <td align="center">java.vm.specification.version</td> 
   <td align="center">java.vm.specification.version Java 虚拟机规范版本</td> 
  </tr> 
  <tr> 
   <td align="center">java.vm.specification.vendor</td> 
   <td align="center">java.vm.specification.vendor Java 虚拟机规范供应商</td> 
  </tr> 
  <tr> 
   <td align="center">java.vm.specification.name</td> 
   <td align="center">java.vm.specification.name Java 虚拟机规范名称</td> 
  </tr> 
  <tr> 
   <td align="center">java.vm.version</td> 
   <td align="center">java.vm.version Java 虚拟机实现版本</td> 
  </tr> 
  <tr> 
   <td align="center">java.vm.vendor</td> 
   <td align="center">java.vm.vendor Java 虚拟机实现供应商</td> 
  </tr> 
  <tr> 
   <td align="center">java.vm.name</td> 
   <td align="center">java.vm.name Java 虚拟机实现名称</td> 
  </tr> 
  <tr> 
   <td align="center">java.specification.version</td> 
   <td align="center">java.specification.version Java 运行时环境规范版本</td> 
  </tr> 
  <tr> 
   <td align="center">java.specification.vendor</td> 
   <td align="center">java.specification.vendor Java 运行时环境规范供应商</td> 
  </tr> 
  <tr> 
   <td align="center">java.specification.name</td> 
   <td align="center">java.specification.name Java 运行时环境规范名称</td> 
  </tr> 
  <tr> 
   <td align="center">java.class.version</td> 
   <td align="center">java.class.version Java 类格式版本号</td> 
  </tr> 
  <tr> 
   <td align="center">java.class.path</td> 
   <td align="center">java.class.path Java 类路径</td> 
  </tr> 
  <tr> 
   <td align="center">java.library.path</td> 
   <td align="center">java.library.path 加载库时搜索的路径列表</td> 
  </tr> 
  <tr> 
   <td align="center">java.io.tmpdir</td> 
   <td align="center">java.io.tmpdir 默认的临时文件路径</td> 
  </tr> 
  <tr> 
   <td align="center">java.compiler</td> 
   <td align="center">java.compiler 要使用的 JIT 编译器的名称</td> 
  </tr> 
  <tr> 
   <td align="center">java.ext.dirs</td> 
   <td align="center">java.ext.dirs 一个或多个扩展目录的路径</td> 
  </tr> 
  <tr> 
   <td align="center">os.name</td> 
   <td align="center">os.name 操作系统的名称</td> 
  </tr> 
  <tr> 
   <td align="center">os.arch</td> 
   <td align="center">os.arch 操作系统的架构</td> 
  </tr> 
  <tr> 
   <td align="center">os.version</td> 
   <td align="center">os.version 操作系统的版本</td> 
  </tr> 
  <tr> 
   <td align="center">file.separator</td> 
   <td align="center">file.separator 文件分隔符（在 UNIX 系统中是“/”）</td> 
  </tr> 
  <tr> 
   <td align="center">path.separator</td> 
   <td align="center">path.separator 路径分隔符（在 UNIX 系统中是“:”）</td> 
  </tr> 
  <tr> 
   <td align="center">line.separator</td> 
   <td align="center">line.separator 行分隔符（在 UNIX 系统中是“/n”）</td> 
  </tr> 
  <tr> 
   <td align="center">user.name</td> 
   <td align="center">user.name 用户的账户名称</td> 
  </tr> 
  <tr> 
   <td align="center">user.home</td> 
   <td align="center">user.home 用户的主目录</td> 
  </tr> 
  <tr> 
   <td align="center">user.dir</td> 
   <td align="center">user.dir 用户的当前工作目录</td> 
  </tr> 
 </tbody> 
</table>

一种是用命令行来获取

import java.io.BufferedReader;
    import java.io.InputStream;
    import java.io.InputStreamReader;
    import java.net.InetAddress;
    import java.net.NetworkInterface;
    import java.util.ArrayList;
    import java.util.Formatter;
    import java.util.List;
    import java.util.Locale;
    import java.util.Map;
    import java.util.Properties;
    
    public class test {
        //通过截取cmd流方式得到计算机的配置信息(不好)
        public static List<String> getIpAddress() {
            Process p = null;
            List<String> address = new ArrayList<String>();
            try {
                p = new ProcessBuilder("ipconfig", "/all").start();
            } catch (Exception e) {
                return address;
            }
            StringBuffer sb = new StringBuffer();
            //读取进程输出值
            InputStream inputStream = p.getInputStream();
            BufferedReader br = new BufferedReader(new InputStreamReader(inputStream));
            String s = "";
            try {
                while ((s = br.readLine()) != null) {
                    sb.append(s + "\n");
                }
            } catch (Exception e) {
                e.printStackTrace();
            } finally {
                try {
                    inputStream.close();
                } catch (Exception e) {
                    e.printStackTrace();
                }
            }
            System.out.println(sb);
            return address;
        }
    
        public static void getIpconfig() {
            Map<String, String> map = System.getenv();
            System.out.println(map.get("USERNAME"));//获取用户名
            System.out.println(map.get("COMPUTERNAME"));//获取计算机名
            System.out.println(map.get("USERDOMAIN"));//获取计算机域名
        }
    
        //得到计算机的ip地址和mac地址
        public static void getConfig() {
            try {
                InetAddress address = InetAddress.getLocalHost();
                NetworkInterface ni = NetworkInterface.getByInetAddress(address);
                //ni.getInetAddresses().nextElement().getAddress();
                byte[] mac = ni.getHardwareAddress();
                String sIP = address.getHostAddress();
                String sMAC = "";
                Formatter formatter = new Formatter();
                for (int i = 0; i < mac.length; i++) { 
                    sMAC = formatter.format(Locale.getDefault(), "%02X%s", mac[i],
                            (i < mac.length - 1) ? "-" : "").toString();
                }
                System.out.println("IP：" + sIP);
                System.out.println("MAC：" + sMAC);
            } catch (Exception e) {
                e.printStackTrace();
            }
        }
    
        //得到计算机的ip,名称,操作系统名称,操作系统版本
        public static void Config() {
            try {
                InetAddress addr = InetAddress.getLocalHost();
                String ip = addr.getHostAddress().toString(); //获取本机ip
                String hostName = addr.getHostName().toString(); //获取本机计算机名称
                System.out.println("本机IP：" + ip + "\n本机名称:" + hostName);
                Properties props = System.getProperties();
                System.out.println("操作系统的名称：" + props.getProperty("os.name"));
                System.out.println("操作系统的版本：" + props.getProperty("os.version"));
            } catch (Exception e) {
                e.printStackTrace();
            }
        }
    
        //其它的一些东西,会有用到的时候的
        public static void all() {
            Properties props = System.getProperties();
            System.out.println("Java的运行环境版本：" + props.getProperty("java.version"));
            System.out.println("Java的运行环境供应商：" + props.getProperty("java.vendor"));
            System.out.println("Java供应商的URL：" + props.getProperty("java.vendor.url"));
            System.out.println("Java的安装路径：" + props.getProperty("java.home"));
            System.out.println("Java的虚拟机规范版本：" + props.getProperty("java.vm.specification.version"));
            System.out.println("Java的虚拟机规范供应商：" + props.getProperty("java.vm.specification.vendor"));
            System.out.println("Java的虚拟机规范名称：" + props.getProperty("java.vm.specification.name"));
            System.out.println("Java的虚拟机实现版本：" + props.getProperty("java.vm.version"));
            System.out.println("Java的虚拟机实现供应商：" + props.getProperty("java.vm.vendor"));
            System.out.println("Java的虚拟机实现名称：" + props.getProperty("java.vm.name"));
            System.out.println("Java运行时环境规范版本：" + props.getProperty("java.specification.version"));
            System.out.println("Java运行时环境规范供应商：" + props.getProperty("java.specification.vender"));
            System.out.println("Java运行时环境规范名称：" + props.getProperty("java.specification.name"));
            System.out.println("Java的类格式版本号：" + props.getProperty("java.class.version"));
            System.out.println("Java的类路径：" + props.getProperty("java.class.path"));
            System.out.println("加载库时搜索的路径列表：" + props.getProperty("java.library.path"));
            System.out.println("默认的临时文件路径：" + props.getProperty("java.io.tmpdir"));
            System.out.println("一个或多个扩展目录的路径：" + props.getProperty("java.ext.dirs"));
            System.out.println("操作系统的名称：" + props.getProperty("os.name"));
            System.out.println("操作系统的构架：" + props.getProperty("os.arch"));
            System.out.println("操作系统的版本：" + props.getProperty("os.version"));
            System.out.println("文件分隔符：" + props.getProperty("file.separator"));
            //在 unix 系统中是＂／＂
            System.out.println("路径分隔符：" + props.getProperty("path.separator"));
            //在 unix 系统中是＂:＂
            System.out.println("行分隔符：" + props.getProperty("line.separator"));
            //在 unix 系统中是＂/n＂
            System.out.println("用户的账户名称：" + props.getProperty("user.name"));
            System.out.println("用户的主目录：" + props.getProperty("user.home"));
            System.out.println("用户的当前工作目录：" + props.getProperty("user.dir"));
        }
    
        public static void main(String[] args) {
            getConfig();
            Config();
            all();
        }
    }