我有一个 JSP 向导，它有 3 个选项卡。1st tab have some variable which are input of second tab's database function.The problem is that on page loaded all the page content is load with default parameter and when values of variable of tab 1 changes, second tabs content don't get updated accordingly.那么当第一个选项卡的变量自动更改第二个选项卡数据更新时，我该如何实现这一点。谢谢