Optional RequestParam in Spring MVC Controller

Asked Oct 11 '17 at 10:00

Active Oct 11 '17 at 10:00

Viewed 3,161 times

I have below code

public ModelAndView springController(@ModelAttribute("param1") Object param1,
        @RequestParam(value = "param2", required = false) Object param2,
        BindingResult bindingResult)

I am not submitting any value from JSP for param2. I have also provided required=false for param2. But when I hit the submit button it gives 400 Bad Request error.

Thanks

asked Oct 11 '17 at 10:00

Prashant Chindhade

What is the URL being hit, could you show us? – VPK Oct 11 '17 at 10:02
/secure/page/create – Prashant Chindhade Oct 11 '17 at 10:08
That's it? there is no value for `param1`? – VPK Oct 11 '17 at 10:08
its a post request – Prashant Chindhade Oct 11 '17 at 10:09
2

Another way to solve / allow to hit the request without providing the value for `param2` would be to provide default value `@RequestParam(value = "param2", defaultValue = "null", required = false) Object param2` – VPK Oct 11 '17 at 10:12
should work, look for the problem somewhere else – Ralph Oct 11 '17 at 10:19
Still not working. If i am removing param2 it is working fine. – Prashant Chindhade Oct 11 '17 at 10:23
this is a similar question https://stackoverflow.com/questions/34599842/spring-4-1-5-mvc-requestparamrequired-false-value-somevalue-fails-if-a. Seems like they didn't really figure it out. – Jack Flamp Oct 11 '17 at 11:14
..except for the `defaultValue` option of course. – Jack Flamp Oct 11 '17 at 11:21

Optional RequestParam in Spring MVC Controller

0 Answers0