index/type/id

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（1）一般格式

PUT blog/csdn/1
{
  "id":1,
  "title":"Elasticsearch簡介",
  "author":"chengyuqiang",
  "content":"Elasticsearch是一個基於Lucene的搜尋引擎"
}

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{
  "_index": "blog",
  "_type": "csdn",
  "_id": "1",
  "_version": 1,
  "result
 
": "created",
  "_shards": {
    "total": 2,
    "successful": 2,
    "failed": 0},
  "created": true}

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繼續新增一條資料

POST blog/csdn/2
{
  "id":2,
  "title":"Git簡介",
  "author":"chengyuqiang"
 
,
  "content":"Git是一個版本控制軟體"
}

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{
  "_index": "blog",
  "_type": "csdn",
  "_id": "2",
  "_version": 1,
  "result": "created",
  "_shards": {
    "total": 2,
    "successful": 2,
    "failed": 0},
  "created": true}

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（2）未指定文件ID

POST blog/csdn
{
  "id":3,
  "title":"Java程式設計",
  "author"
 
:"chengyuqiang",
  "content":"Java面向物件程式設計"
}

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{
  "_index": "blog",
  "_type": "csdn",
  "_id": "wkv472AB5R2olyYk97rN",
  "_version": 1,
  "result": "created",
  "_shards": {
    "total": 2,
    "successful": 1,
    "failed": 0},
  "_seq_no": 0,
  "_primary_term": 1}

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7.2 獲取文件

GET blog/csdn/1

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{
  "_index": "blog",
  "_type": "csdn",
  "_id": "1",
  "_version": 1,
  "found": true,
  "_source": {
    "id": 1,
    "title": "Elasticsearch簡介",
    "author": "chengyuqiang",
    "content": "Elasticsearch是一個基於Lucene的搜尋引擎"}
}

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GET blog/csdn/100

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{
  "_index": "blog",
  "_type": "csdn",
  "_id": "100",
  "found": false}

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HEAD blog/csdn/1

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200 - OK

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HEAD blog/csdn/100

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404 - Not Found

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GET blog/csdn/_mget
{
   "ids":["1","2"]
}

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{
  "docs": [
    {
      "_index": "blog",
      "_type": "csdn",
      "_id": "1",
      "_version": 1,
      "found": true,
      "_source": {
        "id": 1,
        "title": "Elasticsearch簡介",
        "author": "chengyuqiang",
        "content": "Elasticsearch是一個基於Lucene的搜尋引擎"}
    },
    {
      "_index": "blog",
      "_type": "csdn",
      "_id": "2",
      "_version": 1,
      "found": true,
      "_source": {
        "id": 2,
        "title": "Git簡介",
        "author": "chengyuqiang",
        "content": "Git是一個版本控制軟體"}
    }
  ]
}

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7.3 文件搜尋

這裡介紹一下簡單的文件檢索操作，後面章節會詳細介紹。
（1）檢索全部文件

GET blog/_search

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{
  "took": 5,
  "timed_out": false,
  "_shards": {
    "total": 5,
    "successful": 5,
    "skipped": 0,
    "failed": 0},
  "hits": {
    "total": 3,
    "max_score": 1,
    "hits": [
      {
        "_index": "blog",
        "_type": "csdn",
        "_id": "2",
        "_score": 1,
        "_source": {
          "id": 2,
          "title": "Git簡介",
          "author": "chengyuqiang",
          "content": "Git是一個版本控制軟體"}
      },
      {
        "_index": "blog",
        "_type": "csdn",
        "_id": "1",
        "_score": 1,
        "_source": {
          "id": 1,
          "title": "Elasticsearch簡介",
          "author": "chengyuqiang",
          "content": "Elasticsearch是一個基於Lucene的搜尋引擎"}
      },
      {
        "_index": "blog",
        "_type": "csdn",
        "_id": "wkv472AB5R2olyYk97rN",
        "_score": 1,
        "_source": {
          "id": 3,
          "title": "Java程式設計",
          "author": "chengyuqiang",
          "content": "Java面向物件程式設計"}
      }
    ]
  }
}

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（2）term查詢
term查詢用於查詢指定欄位中包含指定分詞的檔案，只有當查詢分詞和文件中的分詞精確匹配時才被檢索到。

GET blog/_search
{
  "query": {
    "term": {
      "title": "程"
    }
  }
}

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由於未使用IK中文分詞，每個漢字被看做獨立的一個詞。

{
  "took": 3,
  "timed_out": false,
  "_shards": {
    "total": 5,
    "successful": 5,
    "skipped": 0,
    "failed": 0},
  "hits": {
    "total": 1,
    "max_score": 0.2876821,
    "hits": [
      {
        "_index": "blog",
        "_type": "csdn",
        "_id": "wkv472AB5R2olyYk97rN",
        "_score": 0.2876821,
        "_source": {
          "id": 3,
          "title": "Java程式設計",
          "author": "chengyuqiang",
          "content": "Java面向物件程式設計"}
      }
    ]
  }
}

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當查詢”程式”時，title欄位中找不到這樣的分詞，預設漢字被分為單字詞。

GET blog/_search
{
  "query": {
    "term": {
      "title": "程式"
    }
  }
}

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{
  "took": 5,
  "timed_out": false,
  "_shards": {
    "total": 5,
    "successful": 5,
    "skipped": 0,
    "failed": 0},
  "hits": {
    "total": 0,
    "max_score": null,
    "hits": []
  }
}

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（3）terms查詢
查詢文件彙總包含多個詞的文件

GET blog/_search
{
  "query": {
    "terms": {
      "title": ["java","git"]
    }
  }
}

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注意，經過分詞後英文單詞變成了小寫，比如”Java”詞項變成了”java”

{
  "took": 17,
  "timed_out": false,
  "_shards": {
    "total": 5,
    "successful": 5,
    "skipped": 0,
    "failed": 0},
  "hits": {
    "total": 2,
    "max_score": 1,
    "hits": [
      {
        "_index": "blog",
        "_type": "csdn",
        "_id":