Jfinal类中类取值问题?报错

@JFinal 你好，想跟你请教个问题：

Jsp中为什么取不到值?

报错:

 Servlet.service() for servlet jsp threw exception
javax.el.PropertyNotFoundException: Property 'pictName' not found on type com.demo.gallery.Gallery

这个Gallery类  extends Model<Gallery>,后台中有pictName这个字段呀.为什么取不到呢?

代码如下:

public void  carShopList(){
		CartBiz  cb=(CartBiz) getSession().getAttribute("shopCart");
		if (cb!=null){
			List<CarItem>  list=cb.getCarItems();
			System.out.println("------CarList------");
			for (CarItem carItem : list) {
				System.out.println(carItem.getGallery().getStr("pictName"));
			}
			setAttr("carList", list)  ;   
		}
			render("cartShop.jsp");
	}

package com.demo.car;
import java.math.BigDecimal;
import com.demo.gallery.Gallery;

public class CarItem {
	private Gallery  gallery;
	private Integer qty;
	private BigDecimal  totalPrice;
	
	public CarItem(Gallery  gallery,Integer qty){
	   super();
       this.gallery=gallery;
       this.qty=qty;
	}
	
	
	public Gallery getGallery() {
		return gallery;
	}
	public void setGallery(Gallery gallery) {
		this.gallery = gallery;
	}
	public Integer getQty() {
		return qty;
	}
	public void setQty(Integer qty) {
		this.qty = qty;
	}
	public BigDecimal  getTotalPrice() {
	   BigDecimal bdQty=new BigDecimal(this.qty);
	   BigDecimal bdPrice=this.gallery.getBigDecimal("price"); 
	   
	   this.totalPrice= bdQty.multiply(bdPrice);
	   return totalPrice; 
	}
	
	public BigDecimal getPrice(){
		return this.gallery.getBigDecimal("price");
	}
	

}

public class Gallery extends Model<Gallery> {
  public static final  Gallery dao=new Gallery();
  
}

JSP页面代码:

<c:forEach items="${carList}" var="carItem">

<td>
 <a class="fdImg"
 src="upload/${carItem.gallery.pictName}"
 style="width: 50px; height: 50px;" alt="" /> </a>
 </td></c:forEach>