【ES】排序输出

下文分四部分：

一.清除旧有数据

二.增添测试数据

三.设置对name进行优化

四.将查询结果按name升序输出

一.清除旧有数据

#删除所有旧有数据并删除索引结构

命令：

curl -u elastic:123456 -XDELETE 'localhost:9200/apple'

返回结果：

{"acknowledged":true}

二.增添测试数据

#插入数据 Andy

命令：

curl -H "Content-Type: application/json" -XPUT 'localhost:9200/apple/emp/1?pretty' -d' {"name":"andy","age":"18","from":"China"}'

返回结果：

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

#插入数据 Bill

curl -H "Content-Type: application/json" -XPUT 'localhost:9200/apple/emp/2?pretty' -d' {"name":"bill","age":"28","from":"England"}'

返回结果：

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

#插入数据 Cindy

curl -H "Content-Type: application/json" -XPUT 'localhost:9200/apple/emp/3?pretty' -d' {"name":"Cindy","age":"38","from":"France"}'

返回结果：

{
  "_index" : "apple",
  "_type" : "emp",
  "_id" : "3",
  "_version" : 1,
  "result" : "created",
  "_shards" : {
    "total" : 2,
    "successful" : 1,
    "failed" : 0
  },
  "_seq_no" : 2,
  "_primary_term" : 1
}

#插入数据 Douglas

curl -H "Content-Type: application/json" -XPUT 'localhost:9200/apple/emp/4?pretty' -d' {"name":"Douglas","age":"48","from":"USA"}'

返回结果：

{
  "_index" : "apple",
  "_type" : "emp",
  "_id" : "4",
  "_version" : 1,
  "result" : "created",
  "_shards" : {
    "total" : 2,
    "successful" : 1,
    "failed" : 0
  },
  "_seq_no" : 3,
  "_primary_term" : 1
}

#查询全体

curl -H "Content-Type: application/json" -XGET 'localhost:9200/apple/emp/_search?pretty' -d' {"query":{"match_all":{}}}'

返回结果：

{
  "took" : 523,
  "timed_out" : false,
  "_shards" : {
    "total" : 1,
    "successful" : 1,
    "skipped" : 0,
    "failed" : 0
  },
  "hits" : {
    "total" : {
      "value" : 4,
      "relation" : "eq"
    },
    "max_score" : 1.0,
    "hits" : [
      {
        "_index" : "apple",
        "_type" : "emp",
        "_id" : "1",
        "_score" : 1.0,
        "_source" : {
          "name" : "andy",
          "age" : "18",
          "from" : "China"
        }
      },
      {
        "_index" : "apple",
        "_type" : "emp",
        "_id" : "2",
        "_score" : 1.0,
        "_source" : {
          "name" : "bill",
          "age" : "28",
          "from" : "England"
        }
      },
      {
        "_index" : "apple",
        "_type" : "emp",
        "_id" : "3",
        "_score" : 1.0,
        "_source" : {
          "name" : "Cindy",
          "age" : "38",
          "from" : "France"
        }
      },
      {
        "_index" : "apple",
        "_type" : "emp",
        "_id" : "4",
        "_score" : 1.0,
        "_source" : {
          "name" : "Douglas",
          "age" : "48",
          "from" : "USA"
        }
      }
    ]
  }
}

三.设置对name进行优化

#优化emp的name字段

curl -X PUT "localhost:9200/apple/_mapping?pretty" -H 'Content-Type: application/json' -d'
{
  "properties": {
    "name": { 
      "type":     "text",
      "fielddata": true
    }
  }
}
'

返回结果：

{
  "acknowledged" : true
}

四.将查询结果按name升序输出

#按name升序查询全体

curl -H "Content-Type: application/json" -XGET 'localhost:9200/apple/emp/_search?pretty' -d' 
{
"query":{"match_all":{} },
"sort":[{"name":{"order":"asc"}}]
}'

返回结果：

{
  "took" : 5,
  "timed_out" : false,
  "_shards" : {
    "total" : 1,
    "successful" : 1,
    "skipped" : 0,
    "failed" : 0
  },
  "hits" : {
    "total" : {
      "value" : 4,
      "relation" : "eq"
    },
    "max_score" : null,
    "hits" : [
      {
        "_index" : "apple",
        "_type" : "emp",
        "_id" : "1",
        "_score" : null,
        "_source" : {
          "name" : "andy",
          "age" : "18",
          "from" : "China"
        },
        "sort" : [
          "andy"
        ]
      },
      {
        "_index" : "apple",
        "_type" : "emp",
        "_id" : "2",
        "_score" : null,
        "_source" : {
          "name" : "bill",
          "age" : "28",
          "from" : "England"
        },
        "sort" : [
          "bill"
        ]
      },
      {
        "_index" : "apple",
        "_type" : "emp",
        "_id" : "3",
        "_score" : null,
        "_source" : {
          "name" : "Cindy",
          "age" : "38",
          "from" : "France"
        },
        "sort" : [
          "cindy"
        ]
      },
      {
        "_index" : "apple",
        "_type" : "emp",
        "_id" : "4",
        "_score" : null,
        "_source" : {
          "name" : "Douglas",
          "age" : "48",
          "from" : "USA"
        },
        "sort" : [
          "douglas"
        ]
      }
    ]
  }
}

END