Elasticsearch "reason": "date_time_parse_exception: Text '1588707487000' could not be parsed at inde

mapping

{
            "properties": {
                "createDate": {
                    "type": "date",
                    "format": "yyyy-MM-dd HH:mm:ss"
                },
                "id": {
                    "type": "long"
                }
            }
        }

post数据

{"createDate": 1588707487000}

报错：

{
    "error": {
        "root_cause": [
            {
                "type": "mapper_parsing_exception",
                "reason": "failed to parse field [createDate] of type [date] in document with id '1'. Preview of field's value: '1588707487000'"
            }
        ],
        "type": "mapper_parsing_exception",
        "reason": "failed to parse field [createDate] of type [date] in document with id '1'. Preview of field's value: '1588707487000'",
        "caused_by": {
            "type": "illegal_argument_exception",
            "reason": "failed to parse date field [1588707487000] with format [yyyy-MM-dd HH:mm:ss.SSS]",
            "caused_by": {
                "type": "date_time_parse_exception",
                "reason": "date_time_parse_exception: Text '1588707487000' could not be parsed at index 0"
            }
        }
    },
    "status": 400
}

这个是由于格式问题，fastjson默认会转换为long的时间，mapping格式设置为epoch_millis就好了，但是时间如果是long可读性差，这时可以指定fastjson的格式

增加JSONField注解指定时间格式就好了

@JSONField(format="yyyy-MM-dd HH:mm:ss")
private Date createdDate;