Jackson 反序列化Date时遇到的问题

来源：互联网发布：邓紫棋的喜欢你知乎编辑：程序博客网时间：2024/06/16 02:48

Jackson对于date的反序列化只支持几种，如果不符合默认格式则会报一下错误

org.codehaus.jackson.map.JsonMappingException: Can not construct instance of java.util.Date from String value '2012-12-12 12:01:01': not a valid representation (error: Can not parse date "2012-12-12 12:01:01": 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: org.glassfish.jersey.message.internal.EntityInputStream@2c384e19; line: 1, column: 2] (through reference chain: jerseyspring.representation.Order["payTime"])      at org.codehaus.jackson.map.JsonMappingException.from(JsonMappingException.java:163)      at org.codehaus.jackson.map.deser.StdDeserializationContext.weirdStringException(StdDeserializationContext.java:243)      at org.codehaus.jackson.map.deser.std.StdDeserializer._parseDate(StdDeserializer.java:577)      at org.codehaus.jackson.map.deser.std.DateDeserializer.deserialize(DateDeserializer.java:28)      at org.codehaus.jackson.map.deser.std.DateDeserializer.deserialize(DateDeserializer.java:19)      at org.codehaus.jackson.map.deser.SettableBeanProperty.deserialize(SettableBeanProperty.java:299)      at org.codehaus.jackson.map.deser.SettableBeanProperty$MethodProperty.deserializeAndSet(SettableBeanProperty.java:414)      at org.codehaus.jackson.map.deser.BeanDeserializer.deserializeFromObject(BeanDeserializer.java:697)      at org.codehaus.jackson.map.deser.BeanDeserializer.deserialize(BeanDeserializer.java:580)      at org.codehaus.jackson.map.ObjectMapper._readValue(ObjectMapper.java:2704)      at org.codehaus.jackson.map.ObjectMapper.readValue(ObjectMapper.java:1315)      at org.codehaus.jackson.jaxrs.JacksonJsonProvider.readFrom(JacksonJsonProvider.java:419)

解决方案：

public class CustomJsonDateDeserializer extends JsonDeserializer<Date> {        @Override      public Date deserialize(JsonParser jp, DeserializationContext ctxt) throws IOException, JsonProcessingException {          SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");                  String date = jp.getText();                  try {                      return format.parse(date);                  } catch (ParseException e) {                      throw new RuntimeException(e);                  }      }    }

且在字段的setter上加上注解

    @JsonDeserialize(using = CustomJsonDateDeserializer.class)    @JsonProperty("LAST_MODIFY_DATE")    private Date lastModifyDate;

0 0