下面选项中,能够正确访问下面代码中方法是() @RequestMapping("/first") public class FirstController{ @RequestMapping("/first") public String handleRequest(HttpServletRequest request, HttpServletResponse response, Model model) throws Exception { model.addAttribute("msg", " 这是我的第一个 Spring MVC 程序 "); return "first"; } } A. http://localhost:8080/chapter12/hello/firstController B. http://localhost:8080/chapter12/first/firstController C. http://localhost:8080/chapter12/first/first D. http://localhost:8080/chapter12/hello/first