Springmvc格式转换

喜欢ヅ旅行 2022-06-13 07:27 283阅读 0赞

创建一个Formatter类

public class USLocalDateFormatter implements Formatter<LocalDate> {
        public static final String US_PATTERN="MM/dd/yyyy";
        public static final String NORMAL_PATTERN="dd/MM/yyyy";
        @Override
        public LocalDate parse(String s, Locale locale) throws ParseException {
            return LocalDate.parse(s,DateTimeFormatter.ofPattern(getPattern(locale)));
        }
    
        @Override
        public String print(LocalDate localDate, Locale locale) {
            return DateTimeFormatter.ofPattern(getPattern(locale)).format(localDate);
        }
        //根据地域不同，用户输入方式不同
        public static String getPattern(Locale locale){
            return isUnitedStates(locale)? US_PATTERN:NORMAL_PATTERN;
        }
        //判断是否在美国
        private static boolean isUnitedStates(Locale locale){
            return Locale.US.getCountry().equals(locale.getCountry());
        }
    }

@Controller
    public class ProfileController {
        //注册一个bean，根据地理位置，确定不同格式，用于前端给用户提醒。
        @ModelAttribute("dateFormat")
        public String localeFormat(Locale locale){
            return USLocalDateFormatter.getPattern(locale);
        }
        @RequestMapping("/profile")
        public String displayProfile(){
            return "profilePage";
        }
        @RequestMapping(value = "/profile",method= RequestMethod.POST)
        public String saveProfile(@ModelAttribute("profileForm") ProfileForm profileForm){
            System.out.println("save ok"+profileForm);
            return "profilePage";
        }
    }

配置：

<mvc:annotation-driven conversion-service="conversionServicess"/>