Elasticsearch 待办
- 日期格式：yyyy-MM-dd，改为 yyyy-MM-dd HH:mm:ss.SSS；实体类路径：https://github.com/cag2050/spring_boot_elasticsearch_demo/blob/master/src/main/java/com/cag2050/spring_boot_elasticsearch_demo/model/BlogModel.java#L23
https://blog.csdn.net/panchang199266/article/details/87297894
http://doc.codingdict.com/elasticsearch/324/
