Add optional parameters in @modelattribute in spring mvc

Question

I am working on spring mvc and I want to make some parameters in modelattribute as optional. Ex. We can use @RequestMapping to set optional parameters by required=false. So I need something like this in @modelattribute. I don't want to use RequestParam because I have big list of parameters. Is there any other way ?

E_net4 · Accepted Answer · 2019-04-12 08:11:13Z

0

Feel free to use ModelAttribute as the values will be populated by default values like 0 for integer, More info can be found here

edited Apr 12, 2019 at 8:11

E_net4

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answered Apr 11, 2019 at 17:18

Eshan I.

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2 Comments

Guest Over a year ago

Thanks for reply..but if it is optional then how can I make some fields required

Eshan I. Over a year ago

Try using @Valid with your model attribute. specify code here please in your OP. If you could do something like

@ModelAttribute("querier")     public void populateIds (@RequestParam(value = "querier", required = false) String querier,                              Model model) {         model.addAttribute("querier", querier == null ? "quest" : querier);     }

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