Java基础（十二）GET请求获取可变参数（HTTP Status 400 - Required String parameter 'a' is not present）一.使用注解@RequestParam二.直接写成参数接收即可
一.使用注解@RequestParam 1.使用@RequestMapping("/index")public String index(HttpServletRequest request, HttpServletResponse response,Model model, @RequestParam String a, ...
