[Linux] ubuntu環境安裝和使用elasticsearch

wget -qO - https://artifacts.elastic.co/GPG-KEY-elasticsearch | sudo apt-key add -
apt-get install apt-transport-https
echo "deb https://artifacts.elastic.co/packages/7.x/apt stable main" | sudo tee -a /etc/apt/sources.list.d/elastic-7.x.list
sudo apt-get update && sudo apt-get install elasticsearch

編輯配置文件:
/etc/elasticsearch/elasticsearch.yml
network.host: 127.0.0.1
network.bind_host: 127.0.0.1
transport.tcp.port: 9300
http.port: 9200
/usr/share/elasticsearch/bin/elasticsearch -d

ES中使用restful api對數據進行增刪查改

1）GET：查詢數據
2）POST：插入或更改數據
3）PUT：創建庫或表
4）DELETE：刪除庫

Index:數據庫
type:表
Document:行
Field:列,字段
Mapping:元信息

創建數據庫:http://localhost:9200/sinamail/ PUT
查看所有數據庫:http://localhost:9200/_cat/indices/ GET
刪除數據庫:http://localhost:9200/sinamail/ DELETE

舊版本創建表,並且定義字段:http://localhost:9200/sinamail/webmail/_mapping PUT

插入數據:
http://localhost:9200/sinamail/webmail/ POST
{
"accessLog": "測試一下"
}
查詢數據:
http://localhost:9200/sinamail/_search POST
{"query":{"bool":{"must":[{"match":{"accessLog":"測試下"}}]}},"from":0,"size":10}

使用CURL命令操作數據:
curl http://127.0.0.1:9200 查看狀態
curl -XPUT http://127.0.0.1:9200/sinamail 創建數據庫
curl http://127.0.0.1:9200/_cat/indices/ 查看所有數據庫
創建表,並且定義字段

curl -XPUT http://127.0.0.1:9200/sinamail/webmail/_mapping -d '{
  "webmail": {
    "properties": {
      "accessLog": {
        "type": "string"
      }
    }
  }
}'  

 

插入數據

curl -XPOST http://127.0.0.1:9200/sinamail/webmail -d '{
    "accessLog":"我是一個好人的測試"
}'  

 

查詢數據

curl -XPOST http://127.0.0.1:9200/sinamail/_search -d '{
    "query":{
        "bool":{
            "must":[{"match":{"accessLog":"測我試下"}}]}},"from":0,"size":10
}'