import net.minecraft.entity.item.EntityMinecartContainer; //导入依赖的package包/类
public static boolean onTravelToDimension(Entity entity, int dimension)
{
    EntityTravelToDimensionEvent event = new EntityTravelToDimensionEvent(entity, dimension);
    MinecraftForge.EVENT_BUS.post(event);
    if (event.isCanceled())
    {
        // Revert variable back to true as it would have been set to false
        if (entity instanceof EntityMinecartContainer)
        {
           ((EntityMinecartContainer) entity).dropContentsWhenDead = true;
        }
    }
    return !event.isCanceled();
}
 

import net.minecraft.entity.item.EntityMinecartContainer; //导入依赖的package包/类
@Override
public String execute(CommandSender sender, String[] params) throws CommandException {
	EntityPlayerMP player = getSenderAsEntity(sender.getMinecraftISender(), EntityPlayerMP.class);
	Entity entity = EntityUtils.traceEntity(player, 128D);
	
	if (params.length == 0 && entity instanceof AbstractChestHorse) {
		((AbstractChestHorse) entity).openGUI(player);
	}
	else if (params.length == 0 && entity instanceof EntityVillager) {
		player.displayVillagerTradeGui((EntityVillager) entity);
	}
	else if (params.length == 0 && entity instanceof EntityMinecartContainer) {
		player.displayGui((EntityMinecartContainer) entity);
	}
	else {
		if (params.length == 0 || params.length > 2) {
			BlockPos trace; 
			
			try {trace = params.length > 2 ? getCoordFromParams(sender.getMinecraftISender(), params, 0) : EntityUtils.traceBlock(player, 128D);}
			catch (NumberFormatException nfe) {throw new CommandException("command.open.NAN", sender);}
			
			if (trace == null)
				throw new CommandException("command.open.noBlock", sender);
			
			TileEntity te = sender.getWorld().getTileEntity(trace);
			Block block = WorldUtils.getBlock(sender.getWorld(), trace);
			
			if (te instanceof IInteractionObject)
				player.displayGui((IInteractionObject) te);
			else if (te instanceof IInventory)
				player.displayGUIChest((IInventory) te);
			else if (block == Blocks.ANVIL)
				player.displayGui(new BlockAnvil.Anvil(sender.getWorld(), trace));
			else if (block == Blocks.CRAFTING_TABLE)
				player.displayGui(new BlockWorkbench.InterfaceCraftingTable(sender.getWorld(), trace));
			else 
				throw new CommandException("command.open.invalidBlock", sender);
		}
		else if (params.length > 0) {
			if (params[0].equalsIgnoreCase("enderchest"))
				player.displayGUIChest(player.getInventoryEnderChest());
			else if (params[0].equalsIgnoreCase("enchantment_table") || (params.length > 1 && params[0].equalsIgnoreCase("enchantment") && params[1].equalsIgnoreCase("table"))) {
				final World w = sender.getWorld();
				
				player.displayGui(new IInteractionObject() {
					@Override public boolean hasCustomName() {return false;}
					@Override public String getName() {return "container.enchant";}
					@Override public ITextComponent getDisplayName() {return new TextComponentTranslation(this.getName());}
					@Override public String getGuiID() {return "minecraft:enchanting_table";}
					@Override public Container createContainer(InventoryPlayer playerInventory, EntityPlayer playerIn) {
						return new ContainerEnchantment(playerInventory, w, BlockPos.ORIGIN);
					}
				});
				this.allowedInteractions.put(player, player.openContainer);
			}
			else if (params[0].equalsIgnoreCase("anvil")) {
				player.displayGui(new BlockAnvil.Anvil(sender.getWorld(), BlockPos.ORIGIN)); 
				this.allowedInteractions.put(player, player.openContainer);
			}
			else if (params[0].equalsIgnoreCase("workbench") || params[0].equalsIgnoreCase("crafting_table") || (params.length > 1 && params[0].equalsIgnoreCase("crafting") && params[1].equalsIgnoreCase("table")) ) {
				player.displayGui(new BlockWorkbench.InterfaceCraftingTable(sender.getWorld(), BlockPos.ORIGIN));
				this.allowedInteractions.put(player, player.openContainer);
			}
			else if (params[0].equalsIgnoreCase("furnace") || params[0].equalsIgnoreCase("brewing_stand") || (params.length > 1 && params[0].equalsIgnoreCase("brewing") && params[1].equalsIgnoreCase("stand")))
				throw new CommandException("command.open.cantOpenTEs", sender);
			else
				throw new CommandException("command.open.invalidContainer", sender, params[0]);
		}
		else throw new CommandException("command.generic.invalidUsage", sender, this.getCommandName());
	}
	
	return null;
}