玩转Elasticsearch—Spring Data整合ES7.16.3

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5.1 pom依赖

新建spring boot项目：

<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-web</artifactId>
</dependency>
<!--  依赖web starter-->
<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-data-elasticsearch</artifactId>
</dependency>
<dependency>
    <groupId>org.projectlombok</groupId>
    <artifactId>lombok</artifactId>
</dependency>

5.2 配置

配置文件：

es:
  address: 127.0.0.1
  port: 9200

配置类：

@Configuration
public class ElasticsearchConfig extends AbstractElasticsearchConfiguration {

    @Value("${es.address}")
    private String address;

    @Value("${es.port}")
    private Integer port;

    @Override
    @Bean
    public RestHighLevelClient elasticsearchClient() {
        final String ES_URL = address + ":" + port;
        final ClientConfiguration clientConfiguration = ClientConfiguration.builder()
                .connectedTo(ES_URL)
                .build();
        return RestClients.create(clientConfiguration).rest();
    }
}

5.3 编码测试

@SpringBootTest
class SpEsApplicationTests {

    @Autowired
    private ElasticsearchOperations elasticsearchOperations;


    @Test
    void save() {
        Student student = new Student(3L, "ww", 13, "上海");
        IndexQuery indexQuery = new IndexQueryBuilder()
                .withId(student.getId().toString())
                .withObject(student)
                .build();
        String str = elasticsearchOperations.index(indexQuery,
                IndexCoordinates.of("student"));
        System.out.println(str);
    }

    @Test
    void findById() {
        Student student = elasticsearchOperations.get("1", Student.class, IndexCoordinates.of("student"));
        System.out.println(student);
    }

    @Test
    void findAll() {
        SearchHits<Student> search = elasticsearchOperations.search(Query.findAll(), Student.class, IndexCoordinates.of("student"));
        for (SearchHit<Student> hit : search) {
            System.out.println(hit.getContent());
        }
    }

    @Test
    void findBySome(){
        Criteria criteria = new Criteria("name").is("zs");
        Query query = new CriteriaQuery(criteria);
        SearchHits<Student> search = elasticsearchOperations.search(query, Student.class, IndexCoordinates.of("student"));
        for (SearchHit<Student> hit : search) {
            System.out.println(hit.getContent());
        }
    }

    @Test
    void findBySome2(){
        Criteria contains = new Criteria("name").contains("s");
        Query query = new CriteriaQuery(contains);
        SearchHits<Student> search = elasticsearchOperations.search(query, Student.class, IndexCoordinates.of("student"));
        for (SearchHit<Student> hit : search) {
            System.out.println(hit.getContent());
        }
    }
}