elasticsearch简单操作

现在，启动一个节点和kibana,接下来的一切操作都在kibana中Dev Tools下的Console里完成

创建一篇文档

将小黑的小姨妈的个人信息录入elasticsearch。我们只要输入

PUT t1/doc/1
{
  "name":"小黑的小姨妈",
  "age": 18
}

PUT表示创建命令。虽然命令可以小写，但是我们推荐大写

{
  "_index" : "t1",
  "_type" : "doc",
  "_id" : "1",
  "_version" : 1,
  "result" : "updated",
  "_shards" : {
    "total" : 2,
    "successful" : 1,
    "failed" : 0
  },
  "_seq_no" : 2,
  "_primary_term" : 1
}

结果中的result则是操作类型，现在是created，表示第一次创建。如果我们再次点击执行该命令，那么result则会是updated。我们细心则会发现_version开始是1，现在你每点击一次就会增加一次。表示第几次更改。

查看所有的索引

GET _cat/indices

查询指定的索引信息

GET t1

返回了t1索引的创建信息

{
  "t1" : {
    "aliases" : { },
    "mappings" : {
      "doc" : {
        "properties" : {
          "age" : {
            "type" : "long"
          },
          "name" : {
            "type" : "text",
            "fields" : {
              "keyword" : {
                "type" : "keyword",
                "ignore_above" : 256
              }
            }
          }
        }
      }
    },
    "settings" : {
      "index" : {
        "creation_date" : "1553163739688",
        "number_of_shards" : "5",
        "number_of_replicas" : "1",
        "uuid" : "_7jNW5XATheeK84zKkPwlw",
        "version" : {
          "created" : "6050499"
        },
        "provided_name" : "t1"
      }
    }
  }
}

查看文档信息

GET t1/doc/1

返回结果

{
  "_index" : "t1",
  "_type" : "doc",
  "_id" : "1",
  "_version" : 2,
  "found" : true,
  "_source" : {
    "name" : "小黑的小姨妈",
    "age" : 18
  }
}

查询文档的所有的信息

GET t1/doc/_search

返回信息

{
  "took" : 38,
  "timed_out" : false,
  "_shards" : {
    "total" : 5,
    "successful" : 5,
    "skipped" : 0,
    "failed" : 0
  },
  "hits" : {
    "total" : 2,
    "max_score" : 1.0,
    "hits" : [
      {
        "_index" : "t1",
        "_type" : "doc",
        "_id" : "2",
        "_score" : 1.0,
        "_source" : {
          "name" : "小黑的二姨妈",
          "age" : 16
        }
      },
      {
        "_index" : "t1",
        "_type" : "doc",
        "_id" : "1",
        "_score" : 1.0,
        "_source" : {
          "name" : "小黑的小姨妈",
          "age" : 18
        }
      }
    ]
  }
}

查看索引配置信息

GET t1/_settings

返回信息

{
  "t1" : {
    "settings" : {
      "index" : {
        "creation_date" : "1556191748817",
        "number_of_shards" : "5",
        "number_of_replicas" : "1",
        "uuid" : "WDJy3_KYTjS_ljqr9QIETw",
        "version" : {
          "created" : "6050499"
        },
        "provided_name" : "t1"
      }
    }
  }
}

查看映射关系

GET t1/_mappin

返回信息

{
  "t1" : {
    "mappings" : {
      "doc" : {
        "properties" : {
          "age" : {
            "type" : "long"
          },
          "name" : {
            "type" : "text",
            "fields" : {
              "keyword" : {
                "type" : "keyword",
                "ignore_above" : 256
              }
            }
          }
        }
      }
    }
  }
}

删除索引

删除指定文档

DELETE t1/doc/2

删除索引

DELETE t1

返回结果
{
  "acknowledged" : true
}