java打开IE浏览器的代码

import java.lang.Runtime;
import java.io.IOException;

import java.awt.FlowLayout;
import java.awt.MenuItem;
import java.awt.PopupMenu;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.MouseEvent;
import java.util.ArrayList;

import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JPanel;

public class CreatePrinter {



   /**
    *  The flag to display a url.
    */
   private final static String UNIX_FLAG = "-remote openURL";

   /**
    *  The default browser under unix.
    */
   private final static String UNIX_PATH = "netscape";

   /**
    *  The flag to display a url.
    */
   private final static String WIN_FLAG = "url.dll,FileProtocolHandler";

   /**
    *  Used to identify the windows platform.
    */
   private final static String WIN_ID = "Windows";
   /**
    *  The default system browser under windows.
    */
   private final static String WIN_PATH = "rundll32";




  public static boolean isWindowsPlatform(){
      String os = System.getProperty( "os.name" );
      if( os != null && os.startsWith( WIN_ID ) )
         return true;
      else
         return false;
   }

   public static void showDocument( String url ){
      if( url == null )
         return;
      boolean windows = isWindowsPlatform();
      String cmd = null;
      try{
         if( windows ){
            // cmd = 'rundll32 url.dll,FileProtocolHandler http://...'
            cmd = WIN_PATH + " " + WIN_FLAG + " " + url;
            Process p = Runtime.getRuntime().exec( cmd );
         }
         else{
            // Under Unix, Netscape has to be running for the "-remote"
            // command to work. So, we try sending the command and
            // check for an exit value. If the exit command is 0,
            // it worked, otherwise we need to start the browser.

            // cmd = 'netscape -remote openURL(http://www.javaworld.com)'
            cmd = UNIX_PATH + " " + UNIX_FLAG + "(" + url + ")";
            Process p = Runtime.getRuntime().exec( cmd );
            try{
               // wait for exit code -- if it's 0, command worked,
               // otherwise we need to start the browser up.
               int exitCode = p.waitFor();
               if( exitCode != 0 ){
                  // Command failed, start up the browser
                  // cmd = 'netscape http://www.javaworld.com'
                  cmd = UNIX_PATH + " " + url;
                  p = Runtime.getRuntime().exec( cmd );
               }
            }
            catch( InterruptedException e)
            {
               System.out.println("*** failed to bring up browser using command '" + cmd + "': " +e.toString() );
            }
         }
      }
      catch( IOException io)
      {
         // couldn't exec browser
         System.out.println( "*** failed to bring up browser using command '" + cmd + "': " + io.toString() );
      }
   }
 
   public static void main(String args[]){
    showDocument("www.sina.com.cn");
   }

}