springboot 使用 elasticsearch（使用）

參考：Getting Started With Elasticsearch in Java Spring Boot

 

這一篇講述springboot如何使用ES

開啟ES，前一章已經講了，不贅述。運行bat文件

一，POM

        <!-- https://mvnrepository.com/artifact/org.springframework.boot/spring-boot-starter-data-elasticsearch -->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-elasticsearch</artifactId>
            <version>2.6.3</version>
        </dependency>
        <!-- https://mvnrepository.com/artifact/org.springframework.data/spring-data-elasticsearch -->
        <dependency>
            <groupId>org.springframework.data</groupId>
            <artifactId>spring-data-elasticsearch</artifactId>
            <version>4.3.1</version>
        </dependency>
        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
        </dependency>

 

二，application.yml

server: port: 9000 spring: elasticsearch: rest: uris: localhost:9200 connection-timeout: 1s read-timeout: 1m password: username:

 

三，測試

啟動項添加代碼

@SpringBootApplication
public class TestApplication {
 
    public static void main(String[] args) {
        SpringApplication.run(TestApplication.class, args);
    }
    @Bean
    public boolean createTestIndex(RestHighLevelClient restHighLevelClient) throws Exception {
        try {
            DeleteIndexRequest deleteIndexRequest = new DeleteIndexRequest("hello-world");
            restHighLevelClient.indices().delete(deleteIndexRequest, RequestOptions.DEFAULT); // 1
        } catch (Exception ignored) {
        }
 
        CreateIndexRequest createIndexRequest = new CreateIndexRequest("hello-world");
        createIndexRequest.settings(
                Settings.builder().put("index.number_of_shards", 1)
                        .put("index.number_of_replicas", 0));
        restHighLevelClient.indices().create(createIndexRequest, RequestOptions.DEFAULT); // 2
 
        return true;
    }
}

 

四，效果