Spring MVC: How to respond a http request with JSON object and view together?

Question

It's like user click a link and in the Spring controller class a method will respond to the request with a JSON object and also a view name (meaning, it should return but not only a JSON object but also a HTTP view which hold that JSON object, so @ResponseBody may not enough)? Do we have to split it up into two methods (one for view and the other for JSON object)? Any ideas will be appreciated.

Normally we have

@RequestMapping(value="/someValue")
public @ResponseBody someMethod1(@RequestParam String param){
    .....
    return someJSONObject
}

To handle JSON object, and

@RequestMapping(value="/someValue")
public String someMethod2(@RequestParam String param){
    .....
    return someViewInString;
}

To return the view.

How can we combine them together?

Can't you save the json object as an attribute and reference in your view using ${name_of_json_attr}? (I guess this may only work if your view is jsp) — user1766760
– user1766760, Commented Apr 11, 2013 at 19:15

arahant · Accepted Answer · 2013-04-11 19:02:26Z

2

You should return the view with a placeholder for the JSON.

In the controller code, create the JSON programatically, convert it to String format and then put it in the model (let's call it json_string)

In the view there should be a placeholder for the JSON string, something like:

<!-- other view stuff -->
var v = ${json_string};
<!-- more view stuff -->

answered Apr 11, 2013 at 19:02

arahant

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1 Comment

Dreamer Over a year ago

That's good work around. Thank you. So then we still use JSON but it's like a Strin in JSON format from controller?

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