# Spring MillisecondInstantPrinter - 类全路径: `org.springframework.format.datetime.joda.MillisecondInstantPrinter` ```java public final class MillisecondInstantPrinter implements Printer { private final DateTimeFormatter formatter; /** * Create a new ReadableInstantPrinter. * @param formatter the Joda DateTimeFormatter instance */ public MillisecondInstantPrinter(DateTimeFormatter formatter) { this.formatter = formatter; } @Override public String print(Long instant, Locale locale) { // DateTimeFormatter .print return JodaTimeContextHolder.getFormatter(this.formatter, locale).print(instant); } } ```