关于jackson中时间字符串的转换-优快云博客

本文详细解析了在使用JSON进行日期解析时可能遇到的问题及错误信息。针对不同日期格式的处理方式进行了说明，并提供了标准时间格式的例子。

"yyyy-MM-dd'T'HH:mm:ss.SSSZ"
 "yyyy-MM-dd'T'HH:mm:ss.SSS'Z'"
 "EEE, dd MMM yyyy HH:mm:ss zzz"
 "yyyy-MM-dd"

当尸实体中存在Date类型，但是json字符串中是字符串类型

只支持以上几种格式否则报错

org.codehaus.jackson.map.JsonMappingException: Can not construct instance of java.util.Date from String value '19802-22T12:00:00.000-0800': not a valid representation (error: Can not parse date "19802-22T12:00:00.000-0800": not compatible with any of standard forms ("yyyy-MM-dd'T'HH:mm:ss.SSSZ", "yyyy-MM-dd'T'HH:mm:ss.SSS'Z'", "EEE, dd MMM yyyy HH:mm:ss zzz", "yyyy-MM-dd"))
 at [Source: java.io.StringReader@183f74d; line: 1, column: 15] (through reference chain: com.masque.json.Person["birthday"])
	at org.codehaus.jackson.map.JsonMappingException.from(JsonMappingException.java:163)
	at org.codehaus.jackson.map.deser.StdDeserializationContext.weirdStringException(StdDeserializationContext.java:220)
	at org.codehaus.jackson.map.deser.StdDeserializer._parseDate(StdDeserializer.java:511)
	at org.codehaus.jackson.map.deser.DateDeserializer.deserialize(DateDeserializer.java:26)
	at org.codehaus.jackson.map.deser.DateDeserializer.deserialize(DateDeserializer.java:17)
	at org.codehaus.jackson.map.deser.SettableBeanProperty.deserialize(SettableBeanProperty.java:230)
	at org.codehaus.jackson.map.deser.SettableBeanProperty$MethodProperty.deserializeAndSet(SettableBeanProperty.java:334)
	at org.codehaus.jackson.map.deser.BeanDeserializer.deserializeFromObject(BeanDeserializer.java:495)
	at org.codehaus.jackson.map.deser.BeanDeserializer.deserialize(BeanDeserializer.java:351)
	at org.codehaus.jackson.map.ObjectMapper._readMapAndClose(ObjectMapper.java:2130)
	at org.codehaus.jackson.map.ObjectMapper.readValue(ObjectMapper.java:1394)
	at com.masque.json.JacksonTo.main(JacksonTo.java:15)

查了下资料

Letter	Date or Time Component	Presentation	Examples
G	Era designator	Text	AD
y	Year	Year	1996;96
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 in week	Text	Tuesday;Tue
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

标准时间格式

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