Here you can find the source of getRFC2616Date(Date date)
public static String getRFC2616Date(Date date)
//package com.java2s; /*/*from w w w . ja v a 2 s . c om*/ * Licensed to the Apache Software Foundation (ASF) under one * or more contributor license agreements. See the NOTICE file * distributed with this work for additional information * regarding copyright ownership. The ASF licenses this file * to you under the Apache License, Version 2.0 (the * "License"); you may not use this file except in compliance * with the License. You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, * software distributed under the License is distributed on an * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY * KIND, either express or implied. See the License for the * specific language governing permissions and limitations * under the License. */ import java.text.SimpleDateFormat; import java.util.Date; import java.util.Locale; import java.util.SimpleTimeZone; public class Main { private final static String TIME_ZONE = "GMT"; private final static String FORMAT_RFC2616 = "EEE, dd MMM yyyy HH:mm:ss zzz"; public static String getRFC2616Date(Date date) { Date nowDate = date; if (null == date) { nowDate = new Date(); } SimpleDateFormat df = new SimpleDateFormat(FORMAT_RFC2616, Locale.ENGLISH); df.setTimeZone(new SimpleTimeZone(0, TIME_ZONE)); return df.format(nowDate); } }