读取windows中网络配置信息

import java.io.*;
public class GetPhysicalAddress extends Thread{
    String xcmd="ipconfig /all";
    PrintStream out;
    StreamGobbler2 errorGobbler;
    StreamGobbler2 outputGobbler;
  public static void main(String[] args) {
    new GetPhysicalAddress(System.out).start();
  }
  public GetPhysicalAddress(PrintStream out)  {
      this.out=out;
  }
  public void run(){
          try {
              String osName = System.getProperty("os.name" );
              String cmd[] = {"cmd.exe","/C",xcmd};//default
              if(osName.equals("Windows NT"))
              {
                  cmd[0] = "cmd.exe";
                  cmd[1] = "/C";//,/C的意義:執行字串中所描述的命令然後結束命令視窗
                  cmd[2] = xcmd;
              } else
              if(osName.equals("Windows XP"))
              {
                  cmd[0] = "cmd.exe";
                  cmd[1] = "/C";
                  cmd[2] = xcmd;
              } 
              else if( osName.equals( "Windows 95" ) )  {
                  cmd[0] = "command.com" ;
                  cmd[1] = "/C" ;
                  cmd[2] = xcmd;
              }
               else if( osName.equals( "Windows 98" ) ) {
                  cmd[0] = "command.com" ;
                  cmd[1] = "/C" ;
                  cmd[2] = xcmd;
              }
               else if( osName.equals( "Windows 2000" ) )  {
                  cmd[0] = "cmd.exe" ;
                  cmd[1] = "/C" ;
                  cmd[2] = xcmd;
              } else
              if(osName.equals("Windows 2003"))
              {
                  cmd[0] = "cmd.exe";
                  cmd[1] = "/C";
                  cmd[2] = xcmd;
              }
              Runtime rt = Runtime.getRuntime();
 
              //out.print("Executing " + cmd[0] + " " + cmd[1] + " " + cmd[2]+"\n");
              Process proc = rt.exec(cmd);
              errorGobbler = new StreamGobbler2(proc.getErrorStream(), "ERROR",out); 
              outputGobbler = new StreamGobbler2(proc.getInputStream(), "OUTPUT", out);
              errorGobbler.start();
              outputGobbler.start();
           } catch(NullPointerException e){
             e.printStackTrace();
          }catch (Exception e) {
              e.printStackTrace();
            }
      }
  class StreamGobbler2 extends Thread
  {
      boolean outb=false;
      InputStream is;
      PrintStream out;
      String type2;
      public StreamGobbler2(InputStream is, String type2, PrintStream out)
      {
          this.out=out;
          this.is = is;
          this.type2=type2;
      }
      public void run()
      {
          try
          {
              InputStreamReader isr = new InputStreamReader(is);
              BufferedReader br = new BufferedReader(isr);
              String line=null;
              while ( (line = br.readLine()) != null)
                out.print(type2 + ">" + line+"\n"); 
           } catch (IOException ioe)
                {
                  ioe.printStackTrace();
                }
      }
  }
}