ElasticSearch Spring-Data Date format always is long

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").

There are also some alternative solutions that might better suit your case (i.e. creating a CustomDateSerializer, etc).

Starting from Elasticsearch 7 you should't use yyyy but uuuu. e.g:

@Field(type = FieldType.Date, format = DateFormat.custom, pattern = "uuuu-MM-dd'T'HH:mm:ss.SSSZZ")private Date lastModifiedDate;

You don't need @JsonProperty because now Spring Data Elasticsearch doesn't use Jackson but instead a MappingElasticsearchConverter. With this annotation, a converter is automatically created for this property and used.

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.

@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;