玩转ElasticSearch7.x：从入门到实战，掌握搜索框架核心技术

bashdocker pull elasticsearch:7.6.1

bashdocker run --name elasticsearch \
  -p 9200:9200 -p 9300:9300 \
  -e "discovery.type=single-node" \
  -e ES_JAVA_OPTS="-Xms256m -Xmx256m" \
  -d elasticsearch:7.6.1

bashdocker exec -it elasticsearch /bin/bash
cd /usr/share/elasticsearch/config
vim elasticsearch.yml

yamlhttp.cors.enabled: true
http.cors.allow-origin: "*"

bashdocker pull kibana:7.6.1
docker run --name kibana --link=elasticsearch:test -p 5601:5601 -d kibana:7.6.1

bash# 插入文档
curl -X POST "localhost:9200/products/_doc/1" \
  -H 'Content-Type: application/json' \
  -d'{
    "name": "Elasticsearch实战指南",
    "price": 89,
    "tags": ["搜索", "大数据", "nosql"]
  }'

# 搜索
curl -X GET "localhost:9200/products/_search?pretty" \
  -H 'Content-Type: application/json' \
  -d'{
    "query": {
      "match": { "name": "搜索" }
    }
  }'

json{
  "query": {
    "bool": {
      "must": [
        { "match": { "title": "elasticsearch" } }
      ],
      "filter": [
        { "range": { "price": { "gte": 50 } } }
      ],
      "must_not": [
        { "term": { "status": "deleted" } }
      ]
    }
  }
}

jsonPUT /products
{
  "settings": {
    "number_of_shards": 2,
    "number_of_replicas": 1
  },
  "mappings": {
    "properties": {
      "name": { "type": "text" },
      "price": { "type": "long" },
      "tags": { "type": "keyword" },
      "created_at": { "type": "date" }
    }
  }
}

yamlxpack.security.enabled: true

bashbin/elasticsearch-certutil cert

yamlxpack.security.transport.ssl.enabled: true
xpack.security.transport.ssl.verification_mode: certificate
xpack.security.transport.ssl.keystore.path: elastic-certificates.p12

bashbin/elasticsearch-setup-passwords auto

bashPUT /_snapshot/my_backup
{
  "type": "fs",
  "settings": {
    "location": "/path/to/backup"
  }
}

bash# 全量备份
PUT /_snapshot/my_backup/snapshot_cluster?wait_for_completion=true

# 索引快照
PUT /_snapshot/my_backup/snapshot_products?wait_for_completion=true
{
  "indices": "products_*",
  "ignore_unavailable": true,
  "include_global_state": false
}

bashPOST /_snapshot/my_backup/snapshot_cluster/_restore

xml<dependency>
    <groupId>org.elasticsearch.client</groupId>
    <artifactId>elasticsearch-rest-high-level-client</artifactId>
    <version>7.4.2</version>
</dependency>

java@Configuration
public class ElasticSearchConfig {
    @Bean
    public RestHighLevelClient restHighLevelClient() {
        return new RestHighLevelClient(
            RestClient.builder(
                new HttpHost("127.0.0.1", 9200, "http")
            )
        );
    }
}