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jackson 中JsonFormat date类型字段的使用

jackson 中JsonFormat date类型字段的使用

作者: stepyu | 来源:发表于2016-05-03 19:31 被阅读6141次

    为了便于date类型字段的序列化和反序列化,需要在数据结构的date类型的字段上用JsonFormat注解进行注解
    具体格式如下

      @JsonFormat(pattern = "yyyy-MM-dd'T'HH:mm:ss.SSSZ", locale = "zh", timezone = "GMT+8")
    

    pattern 指定转化的格式,SSSZ(S指的是微秒,Z指时区)
    此处的pattern和java.text.SimpleDateFormat中的Time Patterns一致

    Letter  Date or Time Component  Presentation    Examples
    G   Era designator  Text    AD
    y   Year    Year    1996; 96
    Y   Week year   Year    2009; 09
    M   Month in year   Month   July; Jul; 07
    w   Week in year    Number  27
    W   Week in month   Number  2
    D   Day in year Number  189
    d   Day in month    Number  10
    F   Day of week in month    Number  2
    E   Day name in week    Text    Tuesday; Tue
    u   Day number of week (1 = Monday, ..., 7 = Sunday)    Number  1
    a   Am/pm marker    Text    PM
    H   Hour in day (0-23)  Number  0
    k   Hour in day (1-24)  Number  24
    K   Hour in am/pm (0-11)    Number  0
    h   Hour in am/pm (1-12)    Number  12
    m   Minute in hour  Number  30
    s   Second in minute    Number  55
    S   Millisecond Number  978
    z   Time zone   General time zone   Pacific Standard Time; PST; GMT-08:00
    Z   Time zone   RFC 822 time zone   -0800
    X   Time zone   ISO 8601 time zone  -08; -0800; -08:00
    

    具体的pattern和转化后的date形式如下

    Examples
    The following examples show how date and time patterns are interpreted in the U.S. locale. The given date and time are 2001-07-04 12:08:56 local time in the U.S. Pacific Time time zone.
    Date and Time Pattern   Result
    "yyyy.MM.dd G 'at' HH:mm:ss z"  2001.07.04 AD at 12:08:56 PDT
    "EEE, MMM d, ''yy"  Wed, Jul 4, '01
    "h:mm a"    12:08 PM
    "hh 'o''clock' a, zzzz" 12 o'clock PM, Pacific Daylight Time
    "K:mm a, z" 0:08 PM, PDT
    "yyyyy.MMMMM.dd GGG hh:mm aaa"  02001.July.04 AD 12:08 PM
    "EEE, d MMM yyyy HH:mm:ss Z"    Wed, 4 Jul 2001 12:08:56 -0700
    "yyMMddHHmmssZ" 010704120856-0700
    "yyyy-MM-dd'T'HH:mm:ss.SSSZ"    2001-07-04T12:08:56.235-0700
    "yyyy-MM-dd'T'HH:mm:ss.SSSXXX"  2001-07-04T12:08:56.235-07:00
    "YYYY-'W'ww-u"  2001-W27-3
    

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