ElasticSearch Spring-Data Date格式总是很长 [英] ElasticSearch Spring-Data Date format always is long
问题描述
使用spring-data插入日期类型的Elasticsearch文档时,我无法获得正确的日期格式,日期格式始终为Long.
When using spring-data to insert Elasticsearch document with Date type, I can't get right date format, the date format always is Long.
这是Java代码:Entity.java
here is the java code: Entity.java
import java.util.Date;
import org.springframework.data.annotation.Id;
import org.springframework.data.elasticsearch.annotations.DateFormat;
import org.springframework.data.elasticsearch.annotations.Document;
import org.springframework.data.elasticsearch.annotations.Field;
import org.springframework.data.elasticsearch.annotations.FieldIndex;
import org.springframework.data.elasticsearch.annotations.FieldType;
import com.fasterxml.jackson.annotation.JsonProperty;
@Document(indexName = "entity-index", type = "entity-type")
public class Entity {
@Id
private String id;
@Field(type = FieldType.Date, index = FieldIndex.not_analyzed, store = true,
format = DateFormat.custom, pattern = "yyyy-MM-dd'T'hh:mm:ss.SSS'Z'")
private Date createDate;
private String system;
private double score;
@Field(type = FieldType.Date, format = DateFormat.date_optional_time)
@JsonProperty(value = "@timestamp")
private Date updateDate;
// omit setter and getter
}
这是测试
public class EntityDAOTest {
@Autowired
private ElasticsearchTemplate template;
@Before
public void init() {
template.createIndex(Entity.class);
template.putMapping(Entity.class);
}
@Test
public void testCreate() {
Entity entity = new Entity();
entity.setId("5");
entity.setCreateDate(new DateTime(2015,05,27,0,0).toDate());
entity.setUpdateDate(new DateTime(2015,05,27,0,0).toDate());
entity.setSystem("systemC");
entity.setScore(5.7);
IndexQuery query = new IndexQueryBuilder().withObject(entity).withId(entity.getId()).build();
template.index(query);
}
我可以获取创建的实体的映射:
I can get the mapping of the created entity:
{
"entity-index": {
"mappings": {
"entity-type": {
"properties": {
"@timestamp": {
"type": "long"
},
"createDate": {
"type": "date",
"store": true,
"format": "yyyy-MM-dd'T'hh:mm:ss.SSS'Z'"
},
"id": {
"type": "string"
},
"score": {
"type": "double"
},
"system": {
"type": "string"
},
"updateDate": {
"type": "date",
"format": "date_optional_time"
}
}
}
}
}
}
但是,当我搜索curl -X GET /entity-index/_search
时,会得到以下文档:
However, when I search it curl -X GET /entity-index/_search
, I get the following document:
{
"id": "5",
"createDate": 1432656000000,
"system": "systemC",
"score": 5.7,
"@timestamp": 1432656000000
}
并且日期"字段均为长型,如何获取日期格式:"2015-08-17T12:00:00.000"?
and the Date Fields are all Long type, how can I get the date format : '2015-08-17T12:00:00.000'?
推荐答案
您的映射已正确创建.该问题更有可能来自Jackson JSON序列化程序.您应该尝试将此注释添加到日期字段:@JsonFormat (shape = JsonFormat.Shape.STRING, pattern ="yyyy-MM-dd'T'HH:mm:ss.SSSZZ")
.
Your mapping is created correctly. The problem is more likely to come from the Jackson JSON serializer. You should try adding this annotation to your date fields: @JsonFormat (shape = JsonFormat.Shape.STRING, pattern ="yyyy-MM-dd'T'HH:mm:ss.SSSZZ")
.
还有一些替代解决方案可能更适合您的情况(例如,创建CustomDateSerializer
等).
There are also some alternative solutions that might better suit your case (i.e. creating a CustomDateSerializer
, etc).
这篇关于ElasticSearch Spring-Data Date格式总是很长的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!