Spring Controllers:我可以在调用每个@RequestMapping 方法之前调用一个方法吗? [英] Spring Controllers: Can I call a method before each @RequestMapping method is called?

问题描述

我有一些通用组件，它们总是出现在给定 Controller 类提供的每个页面中.

I have some common components that are always present in every page served by a given Controller class.

在每个@RequestMapping 方法的开头，我用这些通用组件填充模型.

At the beginning of each @RequestMapping method I populate the model with these common components.

有没有办法在每个控制器方法之前定义一个方法，以便我可以将所有这些复制/粘贴到一个地方?

Is there a way to define a method be called prior to each of the controller methods so that I can get all of this copy/paste into one place?

推荐答案

只需用 @ModelAttribute

下面将向名为foo"的模型添加一个 Foo 实例

The below would add a Foo instance to the model under the name "foo"

@ModelAttribute("foo")
public Foo foo() {
    return new Foo();
}

见@ModelAttribute 文档

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