SpringBoot2.x之Elasticsearch的配置使用(1)

Elasticsearch基本概念

基于Spring Data ElasticSearch的配置

POM

<?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 https://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>2.2.2.RELEASE</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>
    <groupId>test</groupId>
    <artifactId>springboot-03-elasticsearch</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <name>springboot-03-elasticsearch</name>
    <description>Demo project for Spring Boot</description>

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


    <dependencies>

        <dependency>
            <groupId>io.searchbox</groupId>
            <artifactId>jest</artifactId>
            <version>5.3.3</version>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-elasticsearch</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>

        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <optional>true</optional>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
            <exclusions>
                <exclusion>
                    <groupId>org.junit.vintage</groupId>
                    <artifactId>junit-vintage-engine</artifactId>
                </exclusion>
            </exclusions>
        </dependency>
    </dependencies>

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

application.yml

spring:
  elasticsearch:
    jest:
      uris: http://192.168.47.133:9200		# linux服务器地址
  data:
    elasticsearch:
      cluster-name: my-application
      cluster-nodes: 192.168.47.133:9300

Bean

@NoArgsConstructor
@AllArgsConstructor
@Data
public class Article {

    @JestId
    private Integer id;
    private String author;
    private String title;
    private String content;
}


@AllArgsConstructor
@NoArgsConstructor
@Data
@Document(indexName = "test",type = "book")
public class Book {
    private Integer id;
    private String bookName;
    private String author;
}

Repository

public interface BookRep extends ElasticsearchRepository<Book,Integer> {

    public List<Book> findByBookNameLike(String bookName);
}

Test

@SpringBootTest
class Springboot03ElasticsearchApplicationTests {

    @Autowired
    JestClient jestClient;

    @Test
    void contextLoads() {
        //给es索引中创建一个文档
        Article article = new Article();
        article.setId(1);
        article.setTitle("好消息");
        article.setAuthor("张三");
        article.setContent("hello world");

        // 构建一个索引功能
        Index index = new Index.Builder(article).index("test").type("news").build();
        try {
            jestClient.execute(index);
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

    @Test
    public void search() {
        String json = " \"query\":{        \"term\":{            \"content\":hello        }    }";
        Search search = new Search.Builder(json).addIndex("test").addType("news").build();
        try {
            SearchResult result = jestClient.execute(search);
            System.out.println(result.getJsonString());
        } catch (IOException e) {
            e.printStackTrace();
        }

    }

    @Autowired
    BookRep bookRep;

    @Test
    public void repositoryTest(){
        Book book = new Book(1,"三国","罗贯中");
        bookRep.index(book);
    }

    @Test
    public void repositoryTest2(){
        //Book book = new Book(1,"三国","罗贯中");
        List<Book> books = bookRep.findByBookNameLike("三");
        System.out.println(books);
    }

}


/**
 * springboot默认支持两种技术和ES交互
 * 1.Jest(默认不生效),需要导入Jest的工具包
 * 2.SpringData ElasticSearch:(es版本有可能不合适)
 * Client节点信息
 * ElasticSearchTemplate操作es
 * 编写ElasticSearchRepository的子接口来操作es:
 * interface BookRep extends ElasticsearchRepository<Book,Integer(主键类型)>
 */
@SpringBootApplication
public class Springboot03ElasticsearchApplication {

    public static void main(String[] args) {
        SpringApplication.run(Springboot03ElasticsearchApplication.class, args);
    }

}

GitHub:SpringBoot相关Demo