<%

ResultSet rs_new = conn.executeQuery("select top 12 t1.ID, t1.GoodsName,t1.price,t1.picture,t2.TypeName "

+"from tb_goods t1,tb_subType t2 where t1.typeID=t2.ID and "

+"t1.newGoods=1 order by t1.INTime desc");

int new_ID = 0;

String new_goodsname = "";

float new_nowprice = 0;

String new_picture = "";

String typeName = "";

%>

<%

ResultSet rs_sale = conn.executeQuery("select top 12 t1.ID, t1.GoodsName,t1.price,t1.nowPrice,t1.picture,t2.TypeName "

+"from tb_goods t1,tb_subType t2 where t1.typeID=t2.ID and t1.sale=1 "

+"order by t1.INTime desc");

int sale_ID = 0;

String s_goodsname = "";

float s_price = 0;

float s_nowprice = 0;

String s_introduce = "";

String s_picture = "";

%>

这两段代码轮流报错，都显示

java.lang.NullPointerException