java JAX-RS Jackson Json Provider 日期格式问题
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JAX-RS Hymanson Json Provider Date Format Issue
提问by Blessed Geek
WRT to the following question:
回复以下问题：
Jersey + Hymanson JSON 日期格式序列化 - 如何更改格式或使用自定义 HymansonJsonProvider。
I wish to know
我想知道
- Is Hymanson specifying that the json date format should be normalised to a unix time integer?
- Hymanson 是否指定应将 json 日期格式规范化为 unix 时间整数？
Follow-up questions ...
后续问题...
- Has there been a change in its stance anytime recently?
- Shouldn't a date format be normalised to the same format provided by jaxb xml output?
- why/why not?
- any effort put into resolving this issue?
- has RestEasy provided a json provider mitigation that would output json date in a generally recognisable date format?
- 它的立场最近是否有任何变化？
- 日期格式不应该标准化为 jaxb xml 输出提供的相同格式吗？
- 为什么/为什么不？
- 有没有努力解决这个问题？
- RestEasy 是否提供了一个 json 提供程序缓解，可以以普遍可识别的日期格式输出 json 日期？
回答by Blessed Geek
Sorry people for yelling out loud - I found the answers here
对不起，人们大声喊叫 - 我在这里找到了答案
http://wiki.fasterxml.com/HymansonFAQDateHandling,
http://wiki.fasterxml.com/HymansonFAQDateHandling，
here
这里
http://wiki.fasterxml.com/HymansonFAQ#Serializing_Dates,
http://wiki.fasterxml.com/HymansonFAQ#Serializing_Dates，
here
这里
http://wiki.fasterxml.com/HymansonHowToCustomSerializers
http://wiki.fasterxml.com/HymansonHowToCustomSerializers
here
这里
http://Hymanson.codehaus.org/1.1.2/javadoc/org/codehaus/Hymanson/map/util/StdDateFormat.html
http://Hymanson.codehaus.org/1.1.2/javadoc/org/codehaus/Hymanson/map/util/StdDateFormat.html
Using the @JsonSerialize(using= ... ) way:
使用 @JsonSerialize(using= ... ) 方式：
public class JsonStdDateSerializer
extends JsonSerializer<Date> {
private static final DateFormat iso8601Format =
StdDateFormat.getBlueprintISO8601Format();
@Override
public void serialize(
Date date, JsonGenerator jgen, SerializerProvider provider)
throws IOException, JsonProcessingException {
// clone because DateFormat is not thread-safe
DateFormat myformat = (DateFormat) iso8601Format.clone();
String formattedDate = myformat.format(date);
jgen.writeString(formattedDate);
}
}
回答by Ross Judson
This is also controlled by a feature on the ObjectMapper (at least in 1.9.11, and possibly earlier):
这也由 ObjectMapper 上的一个特性控制（至少在 1.9.11 中，可能更早）：
ObjectMapper om = new ObjectMapper();
om.configure(SerializationConfig.Feature.WRITE_DATES_AS_TIMESTAMPS, false);
om.writer().writeValue(System.out, objectWithDateProperty);
I don't see how to declaratively do the equivalent on the object definition itself.
我不知道如何以声明方式对对象定义本身进行等效操作。
