Spring Data ElasticSearch JSON date format cause NullpointException

Question

I'm using Spring Data ElasticSearch v4.2.x, my data was returned in JSON String.

Here is the problem,I tried to parse JSON string to Object,then I got "java.lang.NullPointerException".I have a Date field with these annotations,I'm sure this field is causing this problem:

    @Field(type = FieldType.Keyword, name = "created_at", format = DateFormat.basic_date_time, pattern = "yyyy-MM-dd HH:mm:ss")
    @JsonFormat(pattern = "yyyy-MM-dd HH:mm:ss", timezone = "GMT+8")
    private Date createdAt;

It won't have any problem with Spring Data ElasticSearch v4.0.x — Dodge_X
– Dodge_X, Commented Nov 30, 2021 at 8:16

Abacus · Accepted Answer · 2021-11-30 08:59:43Z

1

You defined the type as FieldType.Keyword, you would need FieldType.Date.

The @JsonFormat annotation is ignore by Spring Data Elasticsearch.

And please, stop using the old java.util.Date class and use the classes from java.time instead, they are now available since Java 8.

answered Nov 30, 2021 at 8:59

Abacus

19.6k7 gold badges54 silver badges71 bronze badges

Sign up to request clarification or add additional context in comments.

1 Comment

Dodge_X Over a year ago

I found that it was my serialization configuration problem, but your suggestions still help me a lot!

Collectives™ on Stack Overflow

Spring Data ElasticSearch JSON date format cause NullpointException

1 Answer 1

1 Comment

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

1 Comment

Your Answer

Sign up or log in

Post as a guest

Related