Java Tools class, get the MAC address, local IP, computer name of the computer in the Windows,linux system

 PackageCom.cloudssaas.util;ImportJava.io.BufferedReader;Importjava.io.IOException;ImportJava.io.InputStreamReader;Importjava.net.InetAddress;Importjava.util.ArrayList;ImportJava.util.Iterator;Importjava.util.List;ImportJava.util.regex.Matcher;ImportJava.util.regex.Pattern;/********************************************************************************* *//* Copyright (C) 2014xxxxxxx xxx. All rights Reserved. *//* Filename: * Computerinfo.java//* revision:1.0//* Author: <yao xiucai>//* Created on: * May 21, 2014//* Mo Dified by://* Modified on://*//* Description: * * < Take network card Physical Address--* 1. Available under the Windows,linux system; * 2. Obtaining a computer through Ipconifg,ifconfig Information; * 3. Find MAC address in pattern matching mode, independent of OS language > * *//* Description: < take computer name--Take > * FROM environment variable * Abstract limit inheritance/create instance*//********************************************************************************/ Public Abstract classComputerInfo {Private StaticString Macaddressstr =NULL; Private StaticString computerName = system.getenv (). Get ("ComputerName"); Private Static FinalString[] Windowscommand = {"ipconfig", "/all" }; Private Static FinalString[] Linuxcommand = {"/sbin/ifconfig", "-a" }; Private Static FinalPattern Macpattern = Pattern.compile (". *" (:? 0-9a-f]{2}[-:]) {5}[0-9a-f]{2}). * ", pattern.case_insensitive); /*** Get multiple network card addresses * *@return     * @throwsIOException*/    Private Final StaticList<string> getmacaddresslist ()throwsIOException {FinalArraylist<string> macaddresslist =NewArraylist<string>(); FinalString OS = System.getproperty ("Os.name"); FinalString command[]; if(Os.startswith ("Windows") ) {command=Windowscommand; } Else if(Os.startswith ("Linux") ) {command=Linuxcommand; } Else {            Throw NewIOException ("Unknow operating system:" +OS); }        //Execute Command        FinalProcess Process =runtime.getruntime (). exec (command); BufferedReader Bufreader=NewBufferedReader (NewInputStreamReader (Process.getinputstream ()));  for(String line =NULL; (line = Bufreader.readline ())! =NULL;) {Matcher Matcher=Macpattern.matcher (line); if(Matcher.matches ()) {Macaddresslist.add (Matcher.group (1)); //Macaddresslist.add (Matcher.group (1). ReplaceAll ("[-:]",// ""));//Remove the "-" from your Mac}} Process.destroy ();        Bufreader.close (); returnmacaddresslist; }    /*** Get a network card address (from which multiple NICs get one) * *@return     */     Public StaticString getmacaddress () {if(Macaddressstr = =NULL|| Macaddressstr.equals ("") ) {StringBuffer sb=NewStringBuffer ();//store multiple network card addresses, currently only a value of not 0000000000E0 tunnels            Try{List<String> maclist =getmacaddresslist ();  for(Iterator<string> iter =maclist.iterator (); Iter.hasnext ();) {String Amac=Iter.next (); if(!amac.equals ("0000000000E0") {sb.append (AMAC);  Break; }                }            } Catch(IOException e) {e.printstacktrace (); } macaddressstr=sb.tostring (); }        returnMacaddressstr; }    /*** Get Computer name * *@return     */     Public StaticString GetComputerName () {if(ComputerName = =NULL|| Computername.equals ("") ) {ComputerName= System.getenv (). Get ("COMPUTERNAME"); }        returnComputerName; }    /*** Get Client IP address * *@return     */     Public StaticString Getipaddrandname ()throwsIOException {returninetaddress.getlocalhost (). toString (); }    /*** Get Client IP address * *@return     */     Public StaticString getipaddr ()throwsIOException {returninetaddress.getlocalhost (). Gethostaddress (). toString (); }    /*** Get PC Unique ID * *@return     */     Public Staticstring Getcomputerid () {string id=getmacaddress (); if(id = =NULL|| Id.equals ("")) {            Try{ID=Getipaddrandname (); } Catch(IOException e) {e.printstacktrace (); }        }        returnComputerName; }    /*** Restrict creation of instances*/    PrivateComputerInfo () {} Public Static voidMain (string[] args)throwsIOException {System.out.println (computerinfo.getmacaddress ());        System.out.println (Computerinfo.getcomputername ());        System.out.println (Computerinfo.getipaddr ());    System.out.println (Computerinfo.getipaddrandname ()); }}

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Computer MAC network card identification, IP, computer name and other unique identification problems in Java

Java Tools class, get the MAC address, local IP, computer name of the computer in the Windows,linux system