How to use json in spring boot and html

Question

I am new to spring boot. how can I show the json list result from controller to html?

my controller code

public class FormJsonController {
    
    @Autowired
    private UserService userService;
    
    @Autowired 
    private FsnroMasterService fsnrmstservice; 
     
     List<FsnroMasterBean> fsnroOMCMstList;
     List<FsnroMasterBean> fsnroOMCMstList1;
      
    
      @RequestMapping("/popOMC")
      public List fsrOsmMstAction() {
          System.out.println("Start");
          fsnroOMCMstList1 = new ArrayList<FsnroMasterBean>();
          fsnroOMCMstList1 = fsnrmstservice.GetOmsMaster();
         
          System.out.println(fsnroOMCMstList1.size());
          
          return fsnroOMCMstList1 ; 
        }
}

from above code i am getting fsnroOMCMstList1 successfully. how do i use this list to html page?

var tdn;
        
        $.getJSON('popOMC',{async:true}, function(jsonResponse) {
            alert("Mohan");
            
             tdn='<option value=0>Select Uom</option>';
                    $.each(jsonResponse.fsnroOMCMstList1, function(listkey,listvalue) {
                        tdn=tdn+'<option value='+listkey+'>'+listvalue+'</option>';
                    });
            
            alert(tdn);     
            });