Here you can find the source of rfc822(Date date)
public static String rfc822(Date date)
//package com.java2s; /*/*from w w w .j av a 2 s.c om*/ * Copyright 2002-2015 the original author or authors. * * Licensed 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.DateFormat; import java.text.SimpleDateFormat; import java.util.Date; import java.util.Locale; import java.util.SimpleTimeZone; import java.util.TimeZone; public class Main { public static String rfc822(Date date) { DateFormat dateFormat = new SimpleDateFormat("EEE, d MMM yyyy HH:mm:ss z", Locale.US); TimeZone zone = new SimpleTimeZone(8, "GMT"); dateFormat.setTimeZone(zone); return dateFormat.format(date); } }