Elasticsearch学习笔记#2 入门 新增/查询/删除index/列出所有index

准备工作：启动es，启动kibana，使用kibana的dev tools

1.创建一个名为customer的index

PUT /customer?pretty

结果

{
  "acknowledged" : true,
  "shards_acknowledged" : true,
  "index" : "customer"
}

*We simply append pretty to the end of the call to tell it to pretty-print the JSON response (if any).

2.列出当前所有的index

GET /_cat/indices?v

结果

health status index                        uuid                   pri rep docs.count docs.deleted store.size pri.store.size
yellow open   customer                     ldPujOmVRYCIUanl-SDcaQ   1   1          0            0       230b           230b

*因为默认replicas还未被分配，所以状态为yellow，当另一个节点加入时，replicas被分配，状态便转为green

 3.向costomer插一条数据

PUT /customer/_doc/1?pretty
{
  "name": "John Doe"
}

　结果

{
  "_index" : "customer",
  "_type" : "_doc",
  "_id" : "1",
  "_version" : 1,
  "result" : "created",
  "_shards" : {
    "total" : 2,
    "successful" : 1,
    "failed" : 0
  },
  "_seq_no" : 0,
  "_primary_term" : 1
}

4.查询刚刚插入的数据

GET /customer/_doc/1?pretty

 结果

{
  "_index" : "customer",
  "_type" : "_doc",
  "_id" : "1",
  "_version" : 1,
  "_seq_no" : 25,
  "_primary_term" : 1,
  "found" : true,
  "_source" : { "name": "John Doe" }
}

5.删除index

DELETE /customer?pretty

　结果

{
  "acknowledged" : true
}

　执行删除后再执行第2个例子的语句查询所有index，可以发现此时customer已经成功删除。

　　

总结：

可以发现es命令的语法如下：

<HTTP Verb> /<Index>/<Endpoint>/<ID>