我有这个代码:
private String delete(HttpServletRequest req, HttpServletResponse res, Seller seller) throws Exception {
//check data
if(req.getParameter("equipmentId") == null) {
throw new Exception("equipmentId undefined");
}
//build
Equipment equipment = new Equipment(Integer.parseInt(req.getParameter("equipmentId")));
//delete
dbEquipment.delete(equipment);
//remove in array list
for(int i = 0; i < seller.getListEquipment().size(); i++) {
if(seller.getListEquipment().get(i).getId() == equipment.getId()) {
seller.getListEquipment().remove(i);
}
}
//response
return "ok";
}
传递的卖方属性来自HTTPSession:((卖方)req.getSession()。getAttribute(“ user”))
这段代码离线更新了我的对象Seller,但在网上没有显示更新,它仍然是旧的对象/ ArrayList。
最佳答案
更新对象的内容后,尝试将其保存回会话中。