String [] ones=request.getParameterValues("one");
ShopCarDao scd=new ShopCarDao();
List<ShopCar> list=null;
for (int i = 0; i < ones.length; i++) {
String id=ones[i];
System.out.println("---"+id);
int c_id=Integer.parseInt(id);
list=scd.selCar(c_id);
}
request.setAttribute("list", list);
request.getRequestDispatcher("paycar.jsp").forward(request, response);
------解决方案--------------------
scd.setcar 这个地方返回的是一个集合？