RequestParam

    @GetMapping("/form/param")
    @ResponseBody
    public String helloGetRequestParam(@RequestParam(required = false) String name, int age) {
        return String.format("Hello, @RequestParam.<br> name = %s, age = %d", name, age);
    }

• @RequestParam 생략 가능
• (required = false) 빈칸 기능 / null 들어옴