java操作elasticsearch 5.6.0查询、插入

Elasticsearch Java API 实战

最新推荐文章于 2025-07-12 07:00:00 发布

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本文介绍如何使用Java API操作Elasticsearch，包括搭建环境、配置log4j日志记录、查询及插入数据等核心步骤。

https://blog.youkuaiyun.com/lixin2151408/article/details/78276513

需注意：

1、ES5*以上版本需要jdk1.8

2、1.8JDK需tomcat 8

一、新建maven项目，添加依赖

<dependencies>

<dependency>

<groupId>junit</groupId>

<artifactId>junit</artifactId>

<version>4.9</version>

</dependency>

<dependency>

<groupId>jdk.tools</groupId>

<artifactId>jdk.tools</artifactId>

<version>1.8</version>

<scope>system</scope>

<systemPath>C:/Program Files/Java/jdk1.8.0_144/lib/tools.jar</systemPath>

</dependency>


<dependency>

<groupId>org.elasticsearch</groupId>

<artifactId>elasticsearch</artifactId>

<version>5.6.0</version>

</dependency>

<dependency>

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

<artifactId>transport</artifactId>

<version>5.6.0</version>

</dependency>

<dependency>

<groupId>org.apache.logging.log4j</groupId>

<artifactId>log4j-api</artifactId>

<version>2.7</version>

</dependency>

<dependency>

<groupId>org.apache.logging.log4j</groupId>

<artifactId>log4j-core</artifactId>

<version>2.7</version>

</dependency>

</dependencies>

二、新建log4j相关文件

在main文件夹下新建resource文件夹，新建log4j.properties和log4j2.xml

log4j.properties

appender.console.type = Console

appender.console.name = console

appender.console.layout.type = PatternLayout


rootLogger.level = info

rootLogger.appenderRef.console.ref = console

log4j2.xml

<?xml version="1.0" encoding="UTF-8"?>

 <Configuration status="WARN">

    <Appenders>

        <Console name="Console" target="SYSTEM_OUT">

            <PatternLayout pattern="%d{HH:mm:ss.SSS} [%t] %-5level %logger{36} - %msg%n"/>

        </Console>

        </Appenders>

    <Loggers>

        <Root level="error">

            <AppenderRef ref="Console"/>

        </Root>

    </Loggers>

</Configuration>

三、查询

在es中新建索引/blog/article ，插入几条数据；
（注意：这里IP地址写自己在elasticsearch.yml中写的network.host，port就写9300，虽然自己设置的es集群port是9200）

public static void main(String[] args) {

try {


//设置集群名称


Settings settings = Settings.builder().put("cluster.name", "elasticsearch").build();

//创建client

@SuppressWarnings("resource")

TransportClient client = new PreBuiltTransportClient(settings)

.addTransportAddress(new InetSocketTransportAddress(InetAddress.getByName("0.0.0.0"), 9300));

//写入数据

// createDate(client);

//搜索数据

GetResponse response = client.prepareGet("blog", "article", "1").execute().actionGet();

//输出结果

System.out.println(response.getSource());


//关闭client

client.close();

} catch (Exception e) {

e.printStackTrace();

}

}

四、插入单条数据

(因为在查询时已经创建client，因此这里直接引入了，单独插入需单独创建)

/**

* 插入单条数据

* @param client

*/

public static void createDate(Client client){

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

map.put("title", "红楼梦");

map.put("content", "重生之我是贾宝玉");

map.put("newcontent", new String[]{"first","我是贾宝玉"}) ;

map.put("about", "i'd like to play");

try {

IndexResponse response = client.prepareIndex("blog", "article",UUID.randomUUID().toString())

.setSource(map).execute().actionGet();

System.out.println("写入数据结果=" + response.status().getStatus() + "！id=" + response.getId());

} catch (Exception e) {

// TODO: handle exception

e.printStackTrace();

}