从spring控制器调用Java模态函数？

我是JavaSpring技术的新手。我想从JavaSpring控制器调用模态中的getFunction

@RequestMapping(value = "/category/pagination-mobile/{categoryId}/{currentCity}", method = RequestMethod.POST)
    @ResponseBody
    public Map<String, String> paginationMobile(ModelMap model, @PathVariable int categoryId, @PathVariable int currentCity, HttpServletRequest request, HttpServletResponse response) {
        Map<String, String> resp = new HashMap<>();
        List<CityProduct> cityProducts = productService.getCityProductsForCategoryForWeb(categoryId, currentCity, 15, false);
        request.setAttribute("products", cityProducts);
        request.setAttribute("categoryId", categoryId);
        System.out.println("-------------->  " + cityProducts.getPrice());
        String paginationFirstPage = getHtmlResponse(request, response, "/WEB-INF/jsp/catalog/_categoryFirst.jsp");
        resp.put("html", paginationFirstPage);
        return resp;
    }

---

我想从莫代尔那里买到所有的价格。如何在spring controller中获取所有价格。

cityProducts

是

列表的对象，操作系统不能调用
cityProdycts
对象上的
getPrice
方法。您必须重复下面的
列表
，才能使用
getPrice
方法获取每个产品的价格

@RequestMapping(value = "/category/pagination-mobile/{categoryId}/{currentCity}", method = RequestMethod.POST)
    @ResponseBody
    public Map<String, String> paginationMobile(ModelMap model, @PathVariable int categoryId, @PathVariable int currentCity, HttpServletRequest request, HttpServletResponse response) {
        Map<String, String> resp = new HashMap<>();
        List<CityProduct> cityProducts = productService.getCityProductsForCategoryForWeb(categoryId, currentCity, 15, false);
        request.setAttribute("products", cityProducts);
        request.setAttribute("categoryId", categoryId);
        System.out.println("-------------->  " + cityProducts.getPrice());
        String paginationFirstPage = getHtmlResponse(request, response, "/WEB-INF/jsp/catalog/_categoryFirst.jsp");
        resp.put("html", paginationFirstPage);
        return resp;
    }

for(CityProduct cityProduct : cityProducts){
    System.out.println(cityProduct.getPrice());
}

如果您希望实现超价格逻辑，可以在for循环中实现。
我希望显示价格的整数。现在是1299.0000。但我想展示1299。我已经在jsp中使用了。我可以在控制器中验证吗？在控制器中使用
cityProduct.getPrice（）.intValueExact（）
。