/* * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * - Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * - Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * - Neither the name of Oracle nor the names of its * contributors may be used to endorse or promote products derived * from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */// Converting between #javascript Date and #java8 LocalDateTime with #nashorn// JavaScript Date with current timevar d = new Date();print(d);// Java 8 java.time classes usedvar Instant = java.time.Instant;var LocalDateTime = java.time.LocalDateTime;var ZoneId = java.time.ZoneId;// Date.prototype.getTime// getTime() method returns the numeric value corresponding to the time// for the specified date according to universal time. The value returned// by the getTime() method is the number of milliseconds since 1 January 1970 00:00:00 UTC.// See https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/getTime// Java Instant.ofEpochMilli to convert time in milliseconds to Instant object// https://docs.oracle.com/javase/8/docs/api/java/time/Instant.html#ofEpochMilli-long-var instant = Instant.ofEpochMilli(d.getTime());// Instant to LocalDateTime using LocalDateTime.ofInstant// https://docs.oracle.com/javase/8/docs/api/java/time/LocalDateTime.html#ofInstant-java.time.Instant-java.time.ZoneId-var ldt = LocalDateTime.ofInstant(instant, ZoneId.systemDefault());print(ldt);// converting a LocalDateTime to JavaScript Date// convert LocalDateTime to Instant first// https://docs.oracle.com/javase/8/docs/api/java/time/LocalDateTime.html#atZone-java.time.ZoneId-var instant = ldt.atZone(ZoneId.systemDefault()).toInstant();// instant to to epoch milliseconds// https://docs.oracle.com/javase/8/docs/api/java/time/Instant.html#toEpochMilli--// and then to JavaScript Date from time in milliseconds// https://developer.mozilla.org/en/docs/Web/JavaScript/Reference/Global_Objects/Datevar d1 = new Date(instant.toEpochMilli());print(d1);