Java Spring - how to handle missing required request parameters

Question

Consider the following mapping:

@RequestMapping(value = \"/superDuperPage\", method = RequestMethod.GET)
public String superDuperPage(@RequestParam(value = \"som         


        

Answer 1

You can do this with Spring 4.1 onwards and Java 8 by leveraging the Optional type. In your example that would mean your @RequestParam String will have now type of Optional.

Take a look at this article for an example showcasing this feature.