Spring: define @RequestMapping value in a properties file

Question

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

Actually, I do something like:

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

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.

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

Answer 1

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

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.

Answer 2

Thx for the help. It is my contribution... No dependencies are necessary because maven do everything by itself.

In the property file - use maven interpolation, such as below:

vs= v1  us= users me= messages  url.user=${vs}/${us} url.mess=${vs}/${me} 

In your destiny file, for example controller/resource (in mycase):

@RestController //@RequestMapping("v1/users") <<<<<<instead this @RequestMapping("${url.user}")<<<<<<use this @Api(value = "API RESTFUL) public class UserResource { //