How to use SPEL along with regex in RequestMapping - regex

Question

I have a controller method as follows
#RequestMapping(value = "/{fruitName:Mango|Orange|Grapes}", method = RequestMethod.GET)
public String viewFruit(ModelMap model, #PathVariable String fruitName) {
...
}
Here I am hard-coding Mango, Orange and Grapes, such that if url matches with any of these, then only this method should execute.
What I want to do is that, instead of hard-coding these fruits here. I want to declare them in a properties file and by using SPEL, I should bring it here.
Is this possible to do?
I tried code below for this, but failed with error:
#RequestMapping(value = "/{fruitName:#{fruit['seasonFruit.requestMapping']}}", method = RequestMethod.GET)
public String viewFruit(ModelMap model, #PathVariable String fruitName) {
...
}
For following properties File (fruit.properties)
seasonFruit.requestMapping = Mango|Orange|Grapes
Please suggest, how this could be achieved?

Answer 1

#ArtemBilan So, isn't there any way by which we could achieve this? By separation of hard coding
Well, I hope you can do that from code:
#Value("#{ environment['seasonFruit.requestMapping'] }")
private String fruitName;
#RequestMapping(value = "/{fruitName:[a-z]", method = RequestMethod.GET)
public String viewFruit(ModelMap model, #PathVariable String fruitName) {
if (fruitName.matches(this.fruitName))
}

Answer 2

You may not be able to use combination of REGEX and values loaded from property files in requestMapping directly. But i am able to achieve in a sample app. Essentially i am resolving the entire regex pattern from property file, not just values of it. RequestMapping can resolve values from properties file.Hope this helps.
Property file
sample.test={url:mango|orange}
Controller method:
#RequestMapping(value = { "/example/${sample.test}" }, method = RequestMethod.GET)
public String testPattern(#PathVariable String url) {
System.out.println("url:" + url);
return sample;
}