Java Parse Date Pattern YYYY parse(String strDate)

Description

parse

License

Apache License

Declaration

public static Date parse(String strDate) throws ParseException 

Method Source Code

//package com.java2s;
/*//  w ww  . j av  a2s. co m
 * 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.ParseException;
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_ISO8601 = "yyyy-MM-dd'T'HH:mm:ss'Z'";
    private final static String FORMAT_RFC2616 = "EEE, dd MMM yyyy HH:mm:ss zzz";

    public static Date parse(String strDate) throws ParseException {
        if (null == strDate || "".equals(strDate)) {
            return null;
        }
        try {
            return parseISO8601(strDate);
        } catch (ParseException exp) {
            return parseRFC2616(strDate);
        }
    }

    public static Date parseISO8601(String strDate) throws ParseException {
        if (null == strDate || "".equals(strDate)) {
            return null;
        }
        SimpleDateFormat df = new SimpleDateFormat(FORMAT_ISO8601);
        df.setTimeZone(new SimpleTimeZone(0, TIME_ZONE));
        return df.parse(strDate);
    }

    public static Date parseRFC2616(String strDate) throws ParseException {
        if (null == strDate || "".equals(strDate) || strDate.length() != FORMAT_RFC2616.length()) {
            return null;
        }
        SimpleDateFormat df = new SimpleDateFormat(FORMAT_RFC2616, Locale.ENGLISH);
        df.setTimeZone(new SimpleTimeZone(0, TIME_ZONE));
        return df.parse(strDate);
    }
}

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