mybatis批量更新

Service

public void batchUpdateOrderGoodsPrinted(Integer[] rec_ids, ProductUser productUser) {
			String userName = productUser.getUserName();
			ArrayList<OrderGoodsProduct> al = new ArrayList<OrderGoodsProduct>();
			for(int i = 0; i < rec_ids.length; i++) {
				OrderGoodsProduct orderGoodsProduct = new OrderGoodsProduct();
				orderGoodsProduct.setRecId(rec_ids[i]);
				orderGoodsProduct.setUserName(userName);
				al.add(orderGoodsProduct);
			}
			orderGoodsProductMapper.batchUpdateOrderGoodsPrinted(al);
		
	}

xml

<update id="batchUpdateOrderGoodsPrinted"  parameterType="java.util.List">
          <foreach collection="list" item="item" index="index" open="" close="" separator=";">
                update order_goods_product 
                <set>
                  printed = 1,
                  real_quotas_new = goods_quotas_new,
                  real_pay_price=goods_pay_price,
                  user_name=${item.userName},
                  printedtime=unix_timestamp()
                </set>
                where id = ${item.recId}
         </foreach>
    </update>