java ElasticSearch Spring-Data 日期格式总是很长
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ElasticSearch Spring-Data Date format always is long
提问by fudy
When using spring-data to insert Elasticsearch document with Date type, I can't get right date format, the date format always is Long.
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。
here is the java code: Entity.java
这是java代码：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.Hymanson.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
}
Here is the Test
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);
}
I can get the mapping of the created entity:
我可以获得创建的实体的映射：
{
"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"
}
}
}
}
}
}
However, when I search it curl -X GET /entity-index/_search, I get the following document:
但是，当我搜索它时curl -X GET /entity-index/_search，我得到以下文件：
{
"id": "5",
"createDate": 1432656000000,
"system": "systemC",
"score": 5.7,
"@timestamp": 1432656000000
}
and the Date Fields are all Long type, how can I get the date format : '2015-08-17T12:00:00.000'?
并且日期字段都是 Long 类型，我怎样才能获得日期格式：'2015-08-17T12:00:00.000'？
采纳答案by Val
Your mapping is created correctly. The problem is more likely to come from the Hymanson 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").
您的映射已正确创建。问题更可能来自 Hymanson JSON 序列化程序。你应该尝试添加此批注您的日期字段：@JsonFormat (shape = JsonFormat.Shape.STRING, pattern ="yyyy-MM-dd'T'HH:mm:ss.SSSZZ")。
There are also some alternative solutionsthat might better suit your case (i.e. creating a CustomDateSerializer, etc).
还有一些可能更适合您的情况的替代解决方案（即创建一个CustomDateSerializer等）。
回答by Wilson Paul
It worked for me with below settings. Note: delete your index before to test this change. Make sure that the patterns are same at all places.
它使用以下设置对我有用。注意：在测试此更改之前删除您的索引。确保所有地方的图案都相同。
@Field(type = FieldType.Date, store = true, format = DateFormat.custom, pattern = "yyyy-MM-dd'T'HH:mm:ss.SSS'Z'")
@JsonFormat (shape = JsonFormat.Shape.STRING, pattern ="yyyy-MM-dd'T'HH:mm:ss.SSS'Z'")
private Date date;
