Membuat JSON Response untuk dijit.form.FilteringSelect

loket.json

{
  identifier:"id",
  label: "label",
  items: [
	{id:"1", label:"L-001 - Loket 001"},
	{id:"2", label:"L-002 - Loket 002"}
  ]
}

LoketController.java

@Controller
public class LoketController {

    @RequestMapping("/loket/json")
    @ResponseBody
    public Map<String, Object> loketJson(){
        Loket l = new Loket();
        l.setId(100);
        l.setKode("L-001");
        l.setNama("Loket 001");

        // nantinya ini query dari database
        List<Loket> hasilQueryDb = new ArrayList<Loket>();

        Map<String, Object> hasilAkhir = new HashMap<String, Object>();
        hasilAkhir.put("identifier", "id");
        hasilAkhir.put("label", "label");

        List<Map<String, String>> items = new ArrayList<Map<String, String>>();

        for(Loket l : hasilQueryDb){
          Map<String, String> data = new HashMap<String, String>();
          data.put("id", l.getId().toString());
          data.put("label", l.getKode() + " - " +l.getNama());
          items.add(data);
        }

        hasilAkhir.put("items", items);
        
        return hasilAkhir;
    }
}

output.html

<select name="id_loket">
    <option value="1">L-001 - Loket 001</option>
    <option value="2">L-002 - Loket 002</option>
</select>