Java get computer IP, MAC, various versions

Package Com.shx.mac;

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 Systemutil {

Computer configuration information is obtained by intercepting the Cmd stream (bad)
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 ();
Read process output value
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"));//Get User name
System.out.println (Map.get ("COMPUTERNAME"));//Get Computer name
System.out.println (Map.get ("UserDomain"));//Get computer domain name
}
Get the computer's IP address and MAC address
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 ();
}
}
Get the computer's IP, name, operating system name, operating system version
public static void Config () {
try{
InetAddress addr = Inetaddress.getlocalhost ();
String ip=addr.gethostaddress (). toString (); Get the native IP
String hostname=addr.gethostname (). toString (); Get the native computer name
System.out.println ("Native IP:" +ip+ "\ n Native Name:" +hostname);
Properties props=system.getproperties ();
System.out.println ("Name of the operating system:" +props.getproperty ("Os.name"));
SYSTEM.OUT.PRINTLN ("OS Version:" +props.getproperty ("os.version"));
}catch (Exception e) {
E.printstacktrace ();
}
}

Java environment
public static void All () {
Properties props=system.getproperties ();
SYSTEM.OUT.PRINTLN ("Running environment version of Java:" +props.getproperty ("java.version"));
SYSTEM.OUT.PRINTLN ("Running environment provider for Java:" +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 ("Virtual machine specification Provider for Java:" +props.getproperty ("Java.vm.specification.vendor"));
SYSTEM.OUT.PRINTLN ("Java Virtual machine Specification Name:" +props.getproperty ("Java.vm.specification.name"));
SYSTEM.OUT.PRINTLN ("Virtual machine implementation version of Java:" +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 ("OS Version:" +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 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 void Main (string[] args) {
Config ();
GetConfig ();
All ();
}
}

Original http://www.cnblogs.com/azhqiang/p/4157965.html

Java get computer IP, MAC, various versions