Spring：在属性文件中定义@RequestMapping值 [英] Spring: define @RequestMapping value in a properties file

问题描述

是否可以通过在属性文件中定义它来定义Spring中 @RequestMapping 注释的值？

Is it possible to define the value of a @RequestMapping annotation in Spring by defining it in a properties file?

实际上，我做了类似的事情：

Actually, I do something like:

@Controller
@RequestMapping("/xxx")
public class MyController {
...
}

但我会喜欢将路径 / xxx 存储在属性文件中。为什么？例如，如果我重命名控制器中的路径，则不太可能在模板中执行myst​​akes。

But I would like to store the path /xxx in a properties file. Why? For instance, it is less likely that I do mystakes in my templates if I rename the path in the controller.

在其他框架中，这是允许的（例如，参见Symfony） ）。

In other framework this is allowed (see Symfony, for instance).

推荐答案

应该可以在 @RequestMapping 中使用占位符，例如 @RequestMapping（$ {foo.bar}）。看看文档了解更多详情：

It should be possible to use placeholders in @RequestMapping, like for example @RequestMapping("${foo.bar}"). Take a look at the documentation for more details:

中的模式@RequestMapping 注释支持 $ {... }占位符对本地属性和/或系统属性和环境变量。在控制器映射到的路径可能需要通过配置进行自定义的情况下，这可能很有用。有关占位符的更多信息，请参阅PropertyPlaceholderConfigurer类的javadoc。

Patterns in @RequestMapping annotations support ${…​} placeholders against local properties and/or system properties and environment variables. This may be useful in cases where the path a controller is mapped to may need to be customized through configuration. For more information on placeholders, see the javadocs of the PropertyPlaceholderConfigurer class.

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