Spring MVC receiving entity from ajax as List<Issue> use beside controller

[Lacko Rolnik]

I have made spring

@RequestMapping

which accepts POST request with JSON data in body. I am getting deserialized List by sending ajax through my thymeleaf. (most of logic is javascript rest API, which I am consuming and passing further to Spring, currently after controller returns new html with extensionSearch I am loading new html in success branch of ajax function.)

    @IgnoreJwt
    @RequestMapping(value = "/receiveFirstTenIssues", method = RequestMethod.POST)
    public String receiveFirstTenIssues(@RequestBody List<Issue> firstTen,
                                        @RequestParam(value = "totals") final Integer totals,
                                                      ModelMap model) {
        model.addAttribute("firstTenIssues", firstTen);
        return "extensionSearch";
    }

function sendFirstTen(firstTen, totals) {    $.ajax({        type: 'POST',        url: '/receiveFirstTenIssues?totals='+totals,        data: JSON.stringify(firstTen),        success: function (response) {            $('#extensionSearchTable').html($(response).filter('#extensionSearchTable').html());            console.log('Successfully sent first ten issues.');        },        error: function (e) {            console.log('Error during sending first ten issues.', e);        },        contentType: "application/json; charset=utf-8",    }) }


I need make some sort of pagination with spring I have found some guide https://www.baeldung.com/spring-thymeleaf-pagination, but need to access my data in other classes like in guide BookService, I want create Service class for this purpose, where I would access this data from receiving controller. Can I in some way autowire this instance without storing it into database first? I have access to List<Issue> only from controller. I expect that in my @Service class I access these data from spring controller, and implement pagination. The Issue is implemented like record POJO with Java 15.

I have also splited first 10 issues rest, which I am sending through aformentioned @RequestMapping and then another rest for all other issues /receiveNextIssues, where I want implement pagination in Java and then in jquery after onclick call another rest for chosen page like /listIssues?page=5 like in guide.