elasticsearch 8.2.3 安装及springboot简单使用
作者:阳光倾洒
这篇文章主要介绍了elasticsearch 8.2.3 安装及springboot简单使用,本文通过示例代码给大家介绍的非常详细,对大家的学习或工作具有一定的参考借鉴价值,需要的朋友可以参考下
一、下载安装
官网下载地址https://www.elastic.co/cn/downloads/elasticsearch

解压
elasticsearch-8.2.3-windows-x86_64

修改配置
elasticsearch-8.2.3\config\elasticsearch.yml
# ======================== Elasticsearch Configuration ========================= # # NOTE: Elasticsearch comes with reasonable defaults for most settings. # Before you set out to tweak and tune the configuration, make sure you # understand what are you trying to accomplish and the consequences. # # The primary way of configuring a node is via this file. This template lists # the most important settings you may want to configure for a production cluster. # # Please consult the documentation for further information on configuration options: # https://www.elastic.co/guide/en/elasticsearch/reference/index.html # # ---------------------------------- Cluster ----------------------------------- # # Use a descriptive name for your cluster: # #cluster.name: my-application # # ------------------------------------ Node ------------------------------------ # # Use a descriptive name for the node: # #node.name: node-1 # # Add custom attributes to the node: # #node.attr.rack: r1 # # ----------------------------------- Paths ------------------------------------ # # Path to directory where to store the data (separate multiple locations by comma): # #path.data: /path/to/data # # Path to log files: # #path.logs: /path/to/logs # # ----------------------------------- Memory ----------------------------------- # # Lock the memory on startup: # #bootstrap.memory_lock: true # # Make sure that the heap size is set to about half the memory available # on the system and that the owner of the process is allowed to use this # limit. # # Elasticsearch performs poorly when the system is swapping the memory. # # ---------------------------------- Network ----------------------------------- # # By default Elasticsearch is only accessible on localhost. Set a different # address here to expose this node on the network: # #network.host: 192.168.0.1 # # By default Elasticsearch listens for HTTP traffic on the first free port it # finds starting at 9200. Set a specific HTTP port here: # #http.port: 9200 # # For more information, consult the network module documentation. # # --------------------------------- Discovery ---------------------------------- # # Pass an initial list of hosts to perform discovery when this node is started: # The default list of hosts is ["127.0.0.1", "[::1]"] # #discovery.seed_hosts: ["host1", "host2"] # # Bootstrap the cluster using an initial set of master-eligible nodes: # #cluster.initial_master_nodes: ["node-1", "node-2"] # # For more information, consult the discovery and cluster formation module documentation. # # --------------------------------- Readiness ---------------------------------- # # Enable an unauthenticated TCP readiness endpoint on localhost # #readiness.port: 9399 # # ---------------------------------- Various ----------------------------------- # # Allow wildcard deletion of indices: # #action.destructive_requires_name: false #----------------------- BEGIN SECURITY AUTO CONFIGURATION ----------------------- # # The following settings, TLS certificates, and keys have been automatically # generated to configure Elasticsearch security features on 21-06-2022 06:14:38 # # -------------------------------------------------------------------------------- # Enable security features #xpack.security.enabled: true #xpack.security.enrollment.enabled: true # Enable encryption for HTTP API client connections, such as Kibana, Logstash, and Agents #xpack.security.http.ssl: # enabled: true # keystore.path: certs/http.p12 # Enable encryption and mutual authentication between cluster nodes #xpack.security.transport.ssl: #enabled: true #verification_mode: certificate #keystore.path: certs/transport.p12 #truststore.path: certs/transport.p12 # Create a new cluster with the current node only # Additional nodes can still join the cluster later #cluster.initial_master_nodes: ["DESKTOP-22BJ4SG"] # Allow HTTP API connections from anywhere # Connections are encrypted and require user authentication http.host: 0.0.0.0 # Allow other nodes to join the cluster from anywhere # Connections are encrypted and mutually authenticated #transport.host: 0.0.0.0 # 集群的名字 cluster.name: es-cluster # 节点名字 node.name: es_node1 # ES的监听地址 network.host: 0.0.0.0 #设置对外服务的http端口,默认为9200 http.port: 9200 #设置索引数据的存储路径 path.data: D:/99-tools/elasticsearch-8.2.3-windows-x86_64/elasticsearch-8.2.3/data #设置日志文件的存储路径 path.logs: D:/99-tools/elasticsearch-8.2.3-windows-x86_64/elasticsearch-8.2.3/logs # 关闭http访问限制 xpack.security.enabled: false # 增加新的参数,head插件可以访问es http.cors.enabled: true http.cors.allow-origin: "*" # Enable security features #xpack.security.enabled: false xpack.security.enrollment.enabled: true # Enable encryption for HTTP API client connections, such as Kibana, Logstash, and Agents xpack.security.http.ssl: enabled: false keystore.path: certs/http.p12 # Enable encryption and mutual authentication between cluster nodes xpack.security.transport.ssl: enabled: true verification_mode: certificate keystore.path: certs/transport.p12 truststore.path: certs/transport.p12 # Create a new cluster with the current node only # Additional nodes can still join the cluster later cluster.initial_master_nodes: ["es_node1"] #注意,这个要与node.name填写一致 #屏蔽自动下载geopip ingest.geoip.downloader.enabled: false
启动服务
双击elasticsearch-8.2.3\bin\elasticsearch.bat 运行
9300:Java程序访问的端口
9200:浏览器、HTTP访问的端口
http://localhost:9200/

二、客户端elasticsearch-head安装
elasticsearch-head是一款专门针对于Elasticsearch的客户端工具
下载源码https://github.com/mobz/elasticsearch-head](https://github.com/mobz/elasticsearch-head
加压后,在elasticsearch-head目录下执行命令
需要先安装nodejs,下载地址:http://nodejs.cn/download/
npm install npm run start
安装成功
http://localhost:9100/

三、springboot 集成
依赖
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-databind</artifactId>
<version>2.13.2</version>
</dependency>
<dependency>
<groupId>org.glassfish</groupId>
<artifactId>jakarta.json</artifactId>
<version>2.0.1</version>
</dependency>
<!-- https://mvnrepository.com/artifact/co.elastic.clients/elasticsearch-java -->
<dependency>
<groupId>co.elastic.clients</groupId>
<artifactId>elasticsearch-java</artifactId>
<version>8.2.3</version>
</dependency>配置
import co.elastic.clients.elasticsearch.ElasticsearchClient;
import co.elastic.clients.json.jackson.JacksonJsonpMapper;
import co.elastic.clients.transport.ElasticsearchTransport;
import co.elastic.clients.transport.rest_client.RestClientTransport;
import org.apache.http.HttpHost;
import org.elasticsearch.client.RestClient;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
@Configuration
public class ElasticSearchConfig {
@Value("${elasticsearch.host-name}")
private String hostName;
@Value("${elasticsearch.port}")
private int port;
@Bean
public ElasticsearchClient elasticsearchClient(){
RestClient client = RestClient.builder(new HttpHost(hostName, port,"http")).build();
ElasticsearchTransport transport = new RestClientTransport(client,new JacksonJsonpMapper());
return new ElasticsearchClient(transport);
}
}index操作类
import co.elastic.clients.elasticsearch.ElasticsearchClient;
import co.elastic.clients.elasticsearch.indices.CreateIndexResponse;
import co.elastic.clients.elasticsearch.indices.DeleteIndexResponse;
import co.elastic.clients.elasticsearch.indices.GetIndexResponse;
import co.elastic.clients.transport.endpoints.BooleanResponse;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import java.io.IOException;
@Service
public class EsGpsIndexService {
@Autowired
private ElasticsearchClient client;
public final static String INDEX_NAME = "gps";
/**
* 增加index
* @throws IOException
*/
public boolean create() throws IOException {
CreateIndexResponse indexResponse = client.indices().create(c -> c.index(INDEX_NAME));
System.out.println(indexResponse.toString());
return indexResponse.acknowledged();
}
/**
* 查询Index
* @throws IOException
*/
public void query() throws IOException {
GetIndexResponse getIndexResponse = client.indices().get(i -> i.index(INDEX_NAME));
System.out.println(getIndexResponse.toString());
}
/**
* 判断index是否存在
* @throws IOException
*/
public boolean exists() throws IOException {
BooleanResponse booleanResponse = client.indices().exists(e -> e.index(INDEX_NAME));
System.out.println(booleanResponse.value());
return booleanResponse.value();
}
/**
* 删除index
* @throws IOException
*/
public void delete() throws IOException {
DeleteIndexResponse deleteIndexResponse = client.indices().delete(d -> d.index(INDEX_NAME));
System.out.println(deleteIndexResponse.toString());
}
}document 操作类
import co.elastic.clients.elasticsearch.ElasticsearchClient;
import co.elastic.clients.elasticsearch._types.SortOrder;
import co.elastic.clients.elasticsearch._types.query_dsl.QueryBuilders;
import co.elastic.clients.elasticsearch._types.query_dsl.RangeQuery;
import co.elastic.clients.elasticsearch.core.*;
import co.elastic.clients.elasticsearch.core.bulk.BulkOperation;
import co.elastic.clients.elasticsearch.core.search.Hit;
import co.elastic.clients.json.JsonData;
import co.elastic.clients.transport.endpoints.BooleanResponse;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
@Service
public class EsGpsDocumentService {
@Autowired
private ElasticsearchClient client;
/**
* 插入document
* @throws IOException
*/
public void add(GpsInfo gps) throws IOException {
IndexResponse indexResponse = client.index(i -> i
.index(EsGpsIndexService.INDEX_NAME)
//设置id
.id(gps.getId())
//
.document(gps));
}
/**
* 更新Document
* @throws IOException
*/
public void update(GpsInfo gps) throws IOException {
UpdateResponse<GpsInfo> updateResponse = client.update(u -> u
.index(EsGpsIndexService.INDEX_NAME)
.id(gps.getId())
.doc(gps)
, GpsInfo.class);
}
/**
* 判断Document是否存在
* @throws IOException
*/
public void exist(String id) throws IOException {
BooleanResponse indexResponse = client.exists(e -> e.index(EsGpsIndexService.INDEX_NAME).id(id));
System.out.println(indexResponse.value());
}
/**
* 查询Document
* @throws IOException
*/
public void get(String id) throws IOException {
GetResponse<GpsInfo> getResponse = client.get(g -> g
.index(EsGpsIndexService.INDEX_NAME)
.id("1")
, GpsInfo.class
);
System.out.println(getResponse.source());
}
/**
* 删除Document
* @throws IOException
*/
public void delete(String id) throws IOException {
DeleteResponse deleteResponse = client.delete(d -> d
.index(EsGpsIndexService.INDEX_NAME)
.id("1")
);
System.out.println(deleteResponse.id());
}
/**
* 批量插入Document
* @throws IOException
*/
public void bulk(List<GpsInfo> gpsList) throws IOException {
List<BulkOperation> bulkOperationArrayList = new ArrayList<>();
//遍历添加到bulk中
for(GpsInfo gps : gpsList){
bulkOperationArrayList.add(BulkOperation.of(o->o.index(i->i.document(gps).id(gps.getId()))));
//bulkOperationArrayList.add(BulkOperation.of(x->x.create(d->d.document(gps).id(gps.getId()).index(EsGpsIndexService.INDEX_NAME))));
}
BulkResponse bulkResponse = client.bulk(b -> b.index(EsGpsIndexService.INDEX_NAME).operations(bulkOperationArrayList));
}
/**
* 查询
* @throws IOException
* https://wenku.baidu.com/view/a8954a68862458fb770bf78a6529647d27283439.html
*/
public void search(String vehicleId,long startTime,long endTime,int page,int pageSize) throws IOException {
SearchResponse<GpsInfo> search = client.search(s -> s
.index(EsGpsIndexService.INDEX_NAME)
.query(q -> q
.bool(b -> b
.filter(m -> m.term(t -> t.field("vehicleId").value(vehicleId)))
.filter(f -> f.range(x-> x.field("gpsTime").gte(JsonData.of(startTime)).lte(JsonData.of(endTime))))
))
//分页查询,从第0页开始查询20个document
.from(page)
.size(pageSize)
//按时间降序排序
//.sort(f->f.field(o->o.field("gpsTime").order(SortOrder.Desc)))
, GpsInfo.class
);
for (Hit<GpsInfo> hit : search.hits().hits()) {
System.out.println(hit.source());
}
}
}实体
import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.NoArgsConstructor;
import java.util.Date;
@Data
@AllArgsConstructor
@NoArgsConstructor
public class GpsInfo {
private String id;
private String vehicleId;
private String deviceId;
private String location;
private Long gpsTime;
private Long createTime;
}测试例子
@RestController
@RequestMapping("/gps")
public class GpsController {
@Autowired
EsGpsIndexService esGpsIndexService;
@Autowired
EsGpsDocumentService esGpsDocumentService;
@GetMapping("/test")
public String test() throws IOException {
boolean exist = esGpsIndexService.exists();
if(!exist){
esGpsIndexService.create();
}
esGpsIndexService.query();
//
/*GpsInfo gps = new GpsInfo();
gps.setId("1");
gps.setDeviceId("1111");
gps.setVehicleId("123");
gps.setLocation("12,33");
gps.setCreateTime(System.currentTimeMillis());
gps.setGpsTime(System.currentTimeMillis());
esGpsDocumentService.add(gps);*/
/*List<GpsInfo> gpsList = new ArrayList<>();
int i= 0;
GpsInfo gps = null;
long time = 1656041715000L;
while (i < 10000){
gps = new GpsInfo();
gps.setId(String.valueOf(i*10000));
gps.setDeviceId("1111");
gps.setVehicleId("123456");
gps.setLocation("12233.2232,33.2512235");
gps.setCreateTime(time);
gps.setGpsTime(time);
gpsList.add(gps);
//
time += 1000;
i += 1;
}
esGpsDocumentService.bulk(gpsList);*/
long start = 1656041715000L;
long end = 1656041725000L;
String v = "123456";
esGpsDocumentService.search(v,start,end,0,20);
return "elasticSearch test!!!!";
}
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