1.创建索引
PUT localhost:9200/customer?pretty

创建成功，返回：
{
 "acknowledged": true, 
 "shards_acknowledged": true, 
 "index": "avengers" 
}

查看索引：
GET localhost:9200/_cat/indices?v

 　2. 插入 文档 /PUT localhost:9200/_doc/1 { }