How to make Spring Data Elasticsearch work with java.time.LocalDateTime for date

Question

I am using Spring Data support for Elasticsearch. Here is the timestamp field mapping:

@Field(type = FieldType.Date, index = FieldIndex.not_analyzed, store =         


        

Answer 1

I was experiencing the similar issue: 'Z' in the date value is treated as a character, so the date parse failed. My solution is using custom pattern to make sure the conversion correct:

@Field(type = FieldType.Date, format = DateFormat.custom, pattern = "yyyy-MM-dd'T'HH:mm:ss'Z'")
private LocalDateTime dateField;

And if we don't want to repeat the pattern on different fields again and again, we can try to centralize to the conversion logic. Spring Data Elastic Search provide the custom conversion feature, check here for the example.

Basically we can write a converter from String to LocalDateTime, and put the date pattern over there.