@Override
	public Object getValueAt(Object node, int column) {
		Object value = null;
		if (node instanceof DefaultMutableTreeTableNode) {
			DefaultMutableTreeTableNode mutableNode = (DefaultMutableTreeTableNode) node;
			Object o = mutableNode.getUserObject();
			if (o != null && o instanceof Material) {
				Material bean = (Material) o;
				switch (column) {
				case 0:
					value = bean.getLiaohao();
					break;
				case 1:
					value = bean.getXunhao();
					break;
				case 2:
					value = bean.getYouxianji();
					break;
				case 3:
					value = bean.getMiaoshu();
					break;
				case 4:
					value = bean.getTidaixiangmuzu();
					break;
				}
			}
		}
		return value;
	}