【java】 获取计算机信息及Java信息

获取计算机名称，操作系统信息，java信息

 package com.agen.test1;
 
 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 SixTest {
 
          //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("计算机用户名"+map.get("USERNAME"));//获取用户名
             System.out.println("计算机名"+map.get("COMPUTERNAME"));//获取计算机名
             System.out.println("计算机域名"+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();
             }
         }
         //java环境
         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) {
             getIpconfig();
             System.out.println(">>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>");
             getConfig();
             System.out.println(">>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>");
             Config();
             System.out.println(">>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>");
             all();
         }  
 
 }