Rest：Representational State Transfer
document文檔數(shù)據(jù)導(dǎo)入到es集群

put更新
主從(粗細(xì))散列分布，絕不能放在1個節(jié)點(diǎn)上

file
segment（段，多個document組成）
document（一條記錄，一個對象實(shí)例）
field（對象的屬性）
term（項(xiàng)，分詞之后的詞條）

CURL命令

在命令行下訪問url的一個工具（理解為瀏覽器）
可以簡單實(shí)現(xiàn)常見的get/post請求
-X 指定http請求的方法：HEAD,GET,POST,PUT,DELETE
-d 指定要傳輸?shù)臄?shù)據(jù)
PUT和POST都可做創(chuàng)建和修改更新，就看id是否存在

# 建立索引庫
curl -XPUT http://192.168.118.102:9200/appke/
# 刪除索引庫
curl -XDELETE http://192.168.118.102:9200/test2/


# 創(chuàng)建document，添加數(shù)據(jù)自動創(chuàng)建id
curl -XPOST http://192.168.118.102:9200/appke/employee -d '
{
   "first_name" : "bin",
   "age" : 33,
   "about" : "I love to go rock climbing",
   "interests": [ "sports", "music"]
}'
curl -XPOST http://192.168.118.102:9200/appke/employee -d '
{
   "first_name" : "bin guo",
   "age" : 47,
   "about" : "I love to fitness",
   "interests": [ "fishing", "music"]
}'
curl -XPOST http://192.168.118.102:9200/appke/employee/2 -d '
{
 "first_name" : "bin",
 "age" : 45,
 "about" : "I love to go rock climbing",
 "interests": [ "sports", "music" ]
}'


# 添加屬性，動態(tài)類的增值
curl -XPOST http://192.168.118.102:9200/appke/employee -d '
{
 "first_name" : "pablo2",
 "age" : 33,
 "about" : "I love to go rock climbing",
 "interests": [ "sports", "music" ],
 "sex": "man"
}'
# 指定id
curl -XPOST http://192.168.118.102:9200/appke/employee/222 -d '
{
 "first_name" : "pablo2",
 "age" : 35,
 "about" : "I love to go rock climbing",
 "interests": [ "sports", "music" ],
 "sex": "man"
}'


# 更新，下面都有問題
# appke/employee/1 1是id，隨便的，相當(dāng)于增加
curl -XPUT http://192.168.118.102:9200/appke/employee/1 -d '
{
 "first_name" : "god bin",
 "last_name" : "pang",
 "age" : 42,
 "about" : "I love to go rock climbing",
 "interests": [ "sports", "music" ]
}'
# 錯誤? 找不到句柄，參數(shù)沒給全
curl -XPUT http://192.168.118.102:9200/appke/employee -d '
{
 "first_name" : "god bin",
 "last_name" : "bin",
 "age" : 45,
 "about" : "I love to go rock climbing",
 "interests": [ "sports", "music" ]
}'
# 修改更新
curl -XPUT http://192.168.118.102:9200/appke/employee/1 -d '
{
 "first_name" : "god bin",
 "last_name" : "pang",
 "age" : 40,
 "about" : "I love to go rock climbing",
 "interests": [ "sports", "music" ]
}'

document獲取數(shù)據(jù)

#根據(jù)document的id來獲取數(shù)據(jù)：(?pretty有縮進(jìn))
curl -XGET http://192.168.118.102:9200/appke/employee/1?pretty

#根據(jù)field來查詢數(shù)據(jù)：
curl -XGET http://192.168.118.102:9200/appke/employee/_search?q=first_name="bin"

# 根據(jù)field來查詢數(shù)據(jù)：match，查詢條件封裝！
curl -XGET http://192.168.118.102:9200/appke/employee/_search?pretty -d '
{
 "query":
  {"match":
   {"first_name":"bin"}
  }
}'

#對多個field發(fā)起查詢：multi_match，匹配多個字段
curl -XGET http://192.168.118.102:9200/appke/employee/_search?pretty -d '
{
 "query":
  {"multi_match":
   {
    "query":"bin",
    "fields":["last_name","first_name"],
    "operator":"and"
   }
  }
}'

多個term對多個field發(fā)起查詢：bool（boolean）

#  組合查詢，must, must_not, should 
#  must + must : 交集
#  must +must_not ：差集
#  should+should  : 并集

curl -XGET http://192.168.118.102:9200/appke/employee/_search?pretty -d '
{
 "query":
  {"bool" :
   {
    "must" : 
     {"match":
      {"first_name":"bin"}
     },
    "must" : 
     {"match":
      {"age":33}
     }
   }
  }
}'

curl -XGET http://192.168.118.102:9200/appke/employee/_search?pretty -d '
{
 "query":
  {"bool" :
   {
    "must" : 
     {"match":
      {"first_name":"bin"}
     },
    "must_not" : 
     {"match":
      {"age":33}
     }
   }
  }
}'


curl -XGET http://192.168.118.102:9200/appke/employee/_search?pretty -d '
{
 "query":
  {"bool" :
   {
    "must_not" : 
     {"match":
      {"first_name":"bin"}
     },
    "must_not" : 
     {"match":
      {"age":33}
     }
   }
  }
}'


##查詢first_name=bin的，或者年齡在20歲到33歲之間的
curl -XGET http://192.168.118.102:9200/appke/employee/_search -d '
{
 "query":
  {"bool" :
   {
   "must" :
    {"term" : 
     { "first_name" : "bin" }
    }
   ,
   "must_not" : 
    {"range":
     {"age" : { "from" : 20, "to" : 33 }
    }
   }
   }
  }
}'

修改配置

# 2個從，主默認(rèn)5個 5x(1+2)=15
curl -XPUT 'http://192.168.118.102:9200/test2/' -d'{"settings":{"number_of_replicas":2}}'
# 3個主，3個從 ，3x(1+3)=12，總共只有3個節(jié)點(diǎn)，最多只能有2個從，即3x(1+2)=9
curl -XPUT 'http://192.168.118.102:9200/test3/' -d'{"settings":{"number_of_shards":3,"number_of_replicas":3}}'

curl -XPUT 'http://192.168.118.102:9200/test4/' -d'{"settings":{"number_of_shards":6,"number_of_replicas":4}}'


curl -XPOST http://192.168.9.11:9200/appke/person/_mapping -d'
{
    "person": {
        "properties": {
            "content": {
                "type": "string",
                "store": "no",
                "term_vector": "with_positions_offsets",
                "analyzer": "ik_max_word",
                "search_analyzer": "ik_max_word",
                "include_in_all": "true",
                "boost": 8
            }
        }
    }
}'

ES和關(guān)系型數(shù)據(jù)庫的數(shù)據(jù)對比，叫法變了

REST的操作分為以下幾種

1. GET：獲取對象的當(dāng)前狀態(tài)；
2. PUT：改變對象的狀態(tài)；
3. POST：創(chuàng)建對象；
4. DELETE：刪除對象；
5. HEAD：獲取頭信息

ES內(nèi)置的REST接口