Java Parse HTTP Date parseHttpDate(String stringValue)

Description

Parse HTTP date.

License

Open Source License

Parameter

Parameter	Description
stringValue	String value to be parsed.

Exception

Parameter	Description
ParseException	if the specified string cannot be parsed in neither of all three HTTP date formats.

Return

A parsed from the string.

Declaration

public static Date parseHttpDate(String stringValue) throws ParseException 

Method Source Code

//package com.java2s;
/*//from  ww w  .ja v  a  2  s  .c om
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 * and Distribution License("CDDL") (collectively, the "License").  You
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 * obtain a copy of the License at
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import java.text.ParseException;
import java.text.SimpleDateFormat;

import java.util.Date;

public class Main {
    /**
     * Parse HTTP date.
     * <p>
     * HTTP applications have historically allowed three different formats for the representation of date/time stamps:
     * <ul>
     * <li>{@code Sun, 06 Nov 1994 08:49:37 GMT} (RFC 822, updated by RFC 1123)</li>
     * <li>{@code Sunday, 06-Nov-94 08:49:37 GMT} (RFC 850, obsoleted by RFC 1036)</li>
     * <li>{@code Sun Nov  6 08:49:37 1994} (ANSI C's asctime() format)</li>
     * </ul>
     *
     * @param stringValue String value to be parsed.
     * @return A {@link Date} parsed from the string.
     * @throws ParseException if the specified string cannot be parsed in neither of all three HTTP date formats.
     */
    public static Date parseHttpDate(String stringValue) throws ParseException {
        SimpleDateFormat formatRfc1123 = new SimpleDateFormat("EEE, dd MMM yyyy HH:mm:ss zzz");
        try {
            return formatRfc1123.parse(stringValue);
        } catch (ParseException e) {
            SimpleDateFormat formatRfc1036 = new SimpleDateFormat("EEE, dd-MMM-yy HH:mm:ss zzz");
            try {
                return formatRfc1036.parse(stringValue);
            } catch (ParseException e1) {
                SimpleDateFormat formatAnsiCAsc = new SimpleDateFormat("EEE MMM d HH:mm:ss yyyy");
                return formatAnsiCAsc.parse(stringValue);
            }
        }
    }
}

Related

1. parseHttpDate(String _dateStr)
2. parseHttpDate(String dstr)
3. parseHttpDate(String ifModifiedSince)
4. parseHttpDate(String s)
5. parseHttpDate(String string)
6. parseHttpDate(String value)
7. parseHttpDateFormat(String httpDateFormat)
8. parseHttpDateString(String s)