存儲:
//創建session對象
HttpSession session = request.getSession();
//把用戶數據保存在session域對象中
session.setAttribute("myprice", price);
獲取:
//獲取信息
String myprice= (String)session.getAttribute("myprice");
在JSP中顯示:
<%String myprice = (String)session.getAttribute("presentUserName");
if(myprice!=null){
out.print(myprice+"元");
}else{
out.print("0.00元");
} %>
效果如下: