Java get computer IP, MAC, various versions

Java code get computer IP, MAC, various versions

 Packagecom.rapoo.middle.action;ImportJava.io.BufferedReader;ImportJava.io.InputStream;ImportJava.io.InputStreamReader;Importjava.net.InetAddress;ImportJava.net.NetworkInterface;Importjava.util.ArrayList;ImportJava.util.Formatter;Importjava.util.List;ImportJava.util.Locale;ImportJava.util.Map;Importjava.util.Properties;  Public classSystemutil {//Computer Configuration information is obtained by intercepting the Cmd stream (bad)     Public StaticList<string>getipaddress () {Process P=NULL; List<String> address =NewArraylist<string>(); Try{p=NewProcessbuilder ("ipconfig", "/all"). Start (); }Catch(Exception e) {returnaddress; } stringbuffer SB=NewStringBuffer (); //read process output valueInputStream InputStream =P.getinputstream (); BufferedReader BR=NewBufferedReader (NewInputStreamReader (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); returnaddress; }          Public Static voidGetipconfig () {Map<String,String> map =system.getenv (); System.out.println (Map.get ("USERNAME"));//Get user nameSystem.out.println (Map.get ("COMPUTERNAME"));//Get computer nameSystem.out.println (Map.get ("UserDomain"));//get computer domain name    }     //get the computer's IP address and MAC address     Public Static voidGetConfig () {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=NewFormatter ();  for(inti = 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 (); }     }     //get the computer's IP, name, operating system name, operating system version     Public Static voidConfig () {Try{inetaddress addr=Inetaddress.getlocalhost (); String IP=addr.gethostaddress (). toString ();//get the native IPString hostname=addr.gethostname (). toString ();//get the native computer nameSystem.out.println ("Native IP:" +ip+ "\ nthe native name:" +hostName); Properties Props=system.getproperties (); System.out.println ("Name of the operating system:" +props.getproperty ("Os.name")); System.out.println ("Version of the operating system:" +props.getproperty ("Os.version")); }Catch(Exception e) {e.printstacktrace (); }     }        //Java Environment     Public Static voidAll () {Properties props=system.getproperties (); System.out.println ("Runtime version of Java:" +props.getproperty ("Java.version"))); System.out.println ("Java Operating Environment Vendor:" +props.getproperty ("Java.vendor"))); System.out.println ("Java Vendor URL:" +props.getproperty ("Java.vendor.url"))); System.out.println ("Installation path for Java:" +props.getproperty ("Java.home"))); System.out.println ("Java version of the virtual machine specification:" +props.getproperty ("Java.vm.specification.version")); System.out.println ("Java specification Provider for virtual machines:" +props.getproperty ("Java.vm.specification.vendor")); System.out.println ("Java Virtual Machine Specification Name:" +props.getproperty ("Java.vm.specification.name"))); System.out.println ("Java Virtual Machine Implementation version:" +props.getproperty ("Java.vm.version"))); System.out.println ("Java Virtual machine Implementation provider:" +props.getproperty ("Java.vm.vendor")); System.out.println ("Java Virtual machine implementation name:" +props.getproperty ("Java.vm.name")); System.out.println ("Java Runtime Environment Specification version:" +props.getproperty ("Java.specification.version"))); System.out.println ("Java Runtime Environment Specification vendor:" +props.getproperty ("Java.specification.vender")); System.out.println ("Java Runtime Environment Specification name:" +props.getproperty ("Java.specification.name"))); System.out.println ("Java class format version number:" +props.getproperty ("Java.class.version"))); System.out.println ("Java classpath:" +props.getproperty ("Java.class.path"))); System.out.println ("List of paths searched when loading library:" +props.getproperty ("Java.library.path")); System.out.println ("Default temporary file path:" +props.getproperty ("Java.io.tmpdir"))); System.out.println ("Path to one or more extended directories:" +props.getproperty ("Java.ext.dirs")); System.out.println ("Name of the operating system:" +props.getproperty ("Os.name")); System.out.println ("Architecture of the Operating system:" +props.getproperty ("Os.arch"))); System.out.println ("Version of the operating system:" +props.getproperty ("Os.version")); System.out.println ("File delimiter:" +props.getproperty ("File.separator"));//in Unix system is "/" System.out.println ("Path delimiter:" +props.getproperty ("Path.separator"));//in Unix system is ":" System.out.println ("line delimiter:" +props.getproperty ("Line.separator"));//in the UNIX system is "/n" System.out.println ("User's account name:" +props.getproperty ("User.Name")); System.out.println ("User's home directory:" +props.getproperty ("User.home"))); System.out.println ("User's current working directory:" +props.getproperty ("User.dir"))); }      Public Static voidMain (string[] args) {Config ();//All ();    } }

Java get computer IP, MAC, various versions