java - How to preload a java method before rendering a view

Question

I have a spring MVC application based on spring and JSP to visualize some date on web pages. My controller originally looks like this.

public class MyController {
    public ModelAndView visualizeData() {
        List myList = MyClass.getMyList();
        return new ModelAndView("myurl", "myList", myList);
    }
}

Now I want to split this ModelAndView method, because the MyClass.getMyList() is slow if it gets executed at the time the user clicks /myurl. I want it to be executed silently before a user clicks /myurl, fetch myList and store in client's cache before the data gets rendered so that the user won't feel the delay for displaying myList. How can I do that?

Answer 1

我会在这里使用 AJAX。有一个简单地呈现页面的操作（即，当他们点击时/myurl，然后使用事件和 AJAX 来点击加载列表然后将其作为 JSON 返回onload的单独操作（可能）。/myurl/getList