在注解中注入Spring属性列表

Question

I want to map REST endpoints dynamically to a RestController. I'd like to configure the endpoints as properties.

My RestController looks like this

@RestController
public class MyRestController {
    }

    @PutMapping("#{'${mapping}'.split(',')}")
    public String fooMapping(@RequestHeader MultiValueMap<String, String> headers, HttpServletRequest request) throws URISyntaxException {

        return "foo";
    }
}

The application.properties look like this

mapping=/mapping1,/mapping2,/mapping3

How do I inject the comma separated list into the annotation? The following hard-coded method does work.

@PutMapping(value = {"/mapping1", "/mapping2", "/mapping3"})

Answer 1

Unfortunately, SpEL expressions works only with @Value annotation, but don't seems to work with @RequestMapping and related annotations. @RequestMapping only supports placeholders from properties.