java - How to return a json respone or redirect to other view depending on the condition? -

i have search criteria depending on list result . if list contains 1 data want return edit view of particular data.if list contains more 1 data want return jsonresponse show data table .

i tried did not data table nor did view

if(reservationgriddatapage.getsize() > 1){     gridjsonresponse jsonresponse = reservationgridhelper.prepareresponse(reservationgriddatapage);     jsonresponse.setitotaldisplayrecords(gridmanager.gettotalsearchedreservations(pagerequest, null, entitystatecode, searchparams));     jsonresponse.setsecho(secho);     return jsonresponse; }else{     long entitykey = null;     list<reservationgriddata> content = reservationgriddatapage.getcontent();     (reservationgriddata t : content) {         entitykey = t.getid();     }      redirectview redirectview = new redirectview("/xxx/editres?id="+entitykey);     return new modelandview(redirectview); } 

just return view name of typestring. then, if reservationgriddatapage.getsize() > 1 returns true, redirect method of controller anotated @responsebody return json object.

@requestmapping(value = "//... mapping blah blah ...", method = requestmethod.post) public string method1(){     if(reservationgriddatapage.getsize() > 1){         return "redirect:/json-response.do";     }else{         long entitykey = null;         list<reservationgriddata> content = reservationgriddatapage.getcontent();         (reservationgriddata t : content) {             entitykey = t.getid();         }          //...         //some other codes          return "the-name-of-my-edit-view";     } }  @requestmapping(value = "/json-response.do", method = requestmethod.get) public @responsebody gridjsonresponse jsonresponsecontroller(){     //... other codes     gridjsonresponse jsonresponse = reservationgridhelper.prepareresponse(reservationgriddatapage);     jsonresponse.setitotaldisplayrecords(gridmanager.gettotalsearchedreservations(pagerequest, null, entitystatecode, searchparams));     jsonresponse.setsecho(secho);     //...      return gridjsonresponse; }