java8 日期格式在输入输出两端的应用

        DateTimeFormatter format = DateTimeFormatter.ofPattern("M d yyyy  hh:mm a", Locale.US);
        DateTimeFormatter formatRFC = DateTimeFormatter.RFC_1123_DATE_TIME;
        LocalDateTime ldt = LocalDateTime.parse("Mon, 14 Sep 2020 13:31:31 GMT", formatRFC);
        String formatedTime = ldt.format(format);
        System.out.printf("%s", formatedTime);
        //9 14 2020  01:31 PM