elasticsearch部署使用

 

部署

 

 

 

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#添加仓库

yum-config-manager --add-repo https://download.docker.com/linux/centos/docker-ce.repo

#docker 安装

yum install docker-ce docker-ce-cli containerd.io

#docker 启动

systemctl restart docker

#docker 拉取elasticsearch镜像

docker pull elasticsearch:7.0.0 

#进入容器

docker run -p  9200:9200  -i -t  elasticsearch:7.0.0   /bin/bash

#安装中文分词

bin/elasticsearch-plugin install analysis-smartcn

#停止容器

docker stop 9ee20833de8e 

#启动容器

 docker run -d -p 9200:9200  -p 9300:9300   -e "discovery.type=single-node" elasticsearch:7.0.0 

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访问 http://localhost:9200/ 有数据返回,便部署成功

 

 

 

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{

  "name" : "EXd9KSw",

  "cluster_name" : "elasticsearch",

  "cluster_uuid" : "1Gezj8LTSfaOxQbsPIzSkw",

  "version" : {

    "number" : "5.6.12",

    "build_hash" : "cfe3d9f",

    "build_date" : "2018-09-10T20:12:43.732Z",

    "build_snapshot" : false,

    "lucene_version" : "6.6.1"

  },

  "tagline" : "You Know, for Search"

}

 

 

curl 测试

 

 

 

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 curl -X PUT 'http://192.168.5.94:9200/hello'

 

 

 

 

 

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{"acknowledged":true,"shards_acknowledged":true,"index":"hello"}

 

 

接入

 

 

 

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     <dependency>

            <groupId>org.elasticsearch.client</groupId>

            <artifactId>elasticsearch-rest-high-level-client</artifactId>

            <version>7.6.1</version>

        </dependency>

    <dependency>

            <groupId>org.elasticsearch</groupId>

            <artifactId>elasticsearch</artifactId>

            <version>7.6.1</version>

        </dependency>

 

 

example

 

 

 

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private static RestHighLevelClient client = new RestHighLevelClient(

            RestClient.builder(

                    new HttpHost("192.168.5.94", 9200, "http")));

@Test

    public void index() throws IOException {

        IndexRequest indexRequest=new IndexRequest("posts");

        indexRequest.index("1");

        Map<String,Object>source=new HashMap<>();

        source.put("name","张三");

        indexRequest.source(source);

        try {

            IndexResponse response=client.index(indexRequest,RequestOptions.DEFAULT);

            String id = response.getId();

            System.out.println(id);

        } catch(ElasticsearchException e) {

          e.printStackTrace();

        }

    }

@Test

public void search() throws IOException {

    SearchRequest searchRequest = new SearchRequest("1");

    SearchSourceBuilder searchSourceBuilder = new SearchSourceBuilder();

    SearchSourceBuilder query = searchSourceBuilder.query(QueryBuilders.matchAllQuery());

    searchRequest.source(searchSourceBuilder);

    SearchResponse search = client.search(searchRequest, RequestOptions.DEFAULT);

    SearchHits hits = search.getHits();

    for (SearchHit hit : hits) {

        System.out.println(hit.getIndex());

        System.out.println(hit.getId());

    }

}

​

 

 

api参考

elstic.co.

https://www.elastic.co/guide/en/elasticsearch/client/java-rest/7.6/java-rest-high-search.html