how to spawn mobs on a target

How do u spawn mobs on specified target?

such as /pig Notch would spawn a pig on notch

also, how do u add banning, i have this and it doesnt ban the player

target.setFireTicks(100);

Something like this..

Code:

if(cmd.getName().equalsIgnoreCase("pig") && args.length == 1)
{
Player selPlr = Bukkit.getServer().getPlayer(args[0]);
if(selPlr!=null)
{
Location plrLocation = selPlr.getLocation();
World plrWorld = selPlr.getWorld();
plrWorld.spawnCreature(plrLocation, EntityType.PIG);
}
if(selPlr==null)
{
//tell sender that player specified does not exist or is not online.
}
}

Also a ban command is already implemented in bukkit, target.SetFireTickets(1000); just sets the player on fire for 1000 ticks. I'm not exactly sure what you were asking there.

You might want to offset the entities spawn location from your players a bit?
Or you will make a cross animal centipede.

Yeah probably, I was just trying to show him the basic method of doing this.

spawnCreature() is deprecated right? You should use spawnEntity(), if I'm not mistaken.

also, how should i make more than one spawn at one command?