Springboot整合elasticsearch以及接口開發

Springboot整合elasticsearch以及接口開發

 

搭建elasticsearch集群

搭建過程略（我這里用的是elasticsearch5.5.2版本）

寫入測試數據

新建索引book（非結構化索引）

PUT http://192.168.100.102:9200/book

修改mapping（結構化索引）

POST http://192.168.100.102:9200/book/novle/_mappings

{

　　"novel": {

　　　　"properties": {

　　　　　　"word_count": {"type": "integer"},

　　　　　　"author": {"type": "keyword"},

　　　　　　"title": {"type": "text"},

　　　　　　"publish_date": {"type": "date","format": "yyyy-MM-dd HH:mm:ss||yyyy-MM-dd||epoch_millis"}

　　　　}

　　}

}

　　

查看新建索引結果（我這里使用的是elasticsearch-head插件）

測試數據寫入

PUT http://192.168.100.102:9200/book/novel/1

{

"word_count": 1000000,

"author": "金庸",

"title": "神雕俠侶",

"publish_date": "1997-10-1"

}

查看數據寫入結果：

 

 

Springboot整合elasticsearch

新建springboot項目

目錄結構

Pom文件

 

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <!--<version>2.1.1.RELEASE</version>-->
        <version>1.5.6.RELEASE</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>
    <groupId>com.ylht</groupId>
    <artifactId>es-demo</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <name>es-demo</name>
    <description>Demo project for Spring Boot</description>

    <properties>
        <java.version>1.8</java.version>
        <es.version>5.5.2</es.version>
    </properties>

    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <!-- https://mvnrepository.com/artifact/org.elasticsearch.client/transport -->
        <dependency>
            <groupId>org.elasticsearch.client</groupId>
            <artifactId>transport</artifactId>
            <version>${es.version}</version>
        </dependency>

        <dependency>
            <groupId>org.elasticsearch</groupId>
            <artifactId>elasticsearch</artifactId>
            <version>${es.version}</version>
        </dependency>

        <dependency>
            <groupId>org.apache.logging.log4j</groupId>
            <artifactId>log4j-api</artifactId>
            <version>2.7</version>
        </dependency>

        <!-- https://mvnrepository.com/artifact/org.apache.logging.log4j/log4j-core -->
        <dependency>
            <groupId>org.apache.logging.log4j</groupId>
            <artifactId>log4j-core</artifactId>
            <version>2.7</version>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-devtools</artifactId>
            <scope>runtime</scope>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>
</project>

 

log4j2.properties

appender.console.type=Console
appender.console.name=console
appender.console.layout.type=PatternLayout
appender.console.layout.pattern=[%t] %-5p %c %m%n

rootLogger.level=info
rootLogger.appenderRef.console.ref=console

 

MyConfig類

package com.ylht.esdemo;

import org.elasticsearch.client.transport.TransportClient;
import org.elasticsearch.common.settings.Settings;
import org.elasticsearch.common.transport.InetSocketTransportAddress;
import org.elasticsearch.transport.client.PreBuiltTransportClient;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

import java.net.InetAddress;
import java.net.UnknownHostException;

@Configuration
public class MyConfig {

    @Bean
    public TransportClient client() throws UnknownHostException {
        InetSocketTransportAddress es1 = new InetSocketTransportAddress(
                InetAddress.getByName("192.168.100.101"), 9300
        );
        InetSocketTransportAddress es2 = new InetSocketTransportAddress(
                InetAddress.getByName("192.168.100.102"), 9300
        );
        InetSocketTransportAddress es3 = new InetSocketTransportAddress(
                InetAddress.getByName("192.168.100.103"), 9300
        );

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

        TransportClient client = new PreBuiltTransportClient(settings);
        client.addTransportAddresses(es1, es2, es3);
        return client;
    }
}

 

EsDemoApplication類文件

package com.ylht.esdemo;

import org.elasticsearch.action.get.GetResponse;
import org.elasticsearch.client.transport.TransportClient;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.autoconfigure.jdbc.DataSourceAutoConfiguration;
import org.springframework.boot.autoconfigure.orm.jpa.HibernateJpaAutoConfiguration;
import org.springframework.http.HttpStatus;
import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.RestController;

import javax.xml.ws.Response;

@SpringBootApplication(exclude = {DataSourceAutoConfiguration.class, HibernateJpaAutoConfiguration.class})
@RestController
public class EsDemoApplication {

    @Autowired
    private TransportClient client;

    @GetMapping("/")
    public String index() {
        return "index";
    }

    @GetMapping(value = "/get/book/novel")
    public ResponseEntity get(@RequestParam(name = "id", defaultValue = "") String id) {
        try {

            if (id.isEmpty()) {
                return new ResponseEntity(HttpStatus.NOT_FOUND);
            }
            GetResponse response = this.client.prepareGet("book", "novel", id)
                    .get();
            if (!response.isExists()) {
                return new ResponseEntity(HttpStatus.NOT_FOUND);
            }
            return new ResponseEntity(response.getSource(), HttpStatus.OK);
        } catch (Exception e) {
            e.printStackTrace();
            return new ResponseEntity(HttpStatus.INTERNAL_SERVER_ERROR);
        }
    }

    public static void main(String[] args) {
        SpringApplication.run(EsDemoApplication.class, args);
    }
}

 

啟動項目

（啟動項目之前最好先 mvn clean,mvn package,mvn install）

啟動方式有多種

1. 直接點擊綠色三角按鈕運行（它右邊一個是debug運行）
2. 直接運行main方法
3. 點擊Teminal，輸入mvn spring-boo:run

運行出錯可以看看我的博客https://i.cnblogs.com/posts?categoryid=1373086

項目正常啟動后

 

接口測試

我這里使用的ponstman

GET 192.168.100.53:8080/get/book/novel?id=1

結果圖