版本对照
各版本的文档说明:https://docs.spring.io/spring-data/elasticsearch/docs/
1、在application.yml中添加配置
spring: data: elasticsearch: repositories: enabled: true #多实例集群扩展时需要配置以下两个参数 #cluster-name: datab-search #cluster-nodes: 127.0.0.1:9300,127.0.0.1:9301
2、添加 Maven 依赖
org.springframework.boot spring-boot-starter-data-elasticsearch
3、建立实体entity
注解说明:
Spring Data通过注解来声明字段的映射属性,有下面的三个注解:
示例:
@Document(indexName = "cp_doc", type = "doc", shards = 10, replicas = 0) public class CpDocument extends BaseEntity { @Id//作用在成员变量,标记一个字段作为id主键 private long id ; @Field(type = FieldType.Text) private String name ; @Field(type = FieldType.Text) private String address ; public long getId() { return id; } public void setId(long id) { this.id = id; } public String getName() { return name; } public void setName(String name) { this.name = name; } public String getAddress() { return address; } public void setAddress(String address) { this.address = address; }
4、编写 Repository 访问层
/** * 基本操作repository-curd * @author 滚动的蛋 * */ public interface CpRepository extends ElasticsearchRepository{ }
5、创建索引+查询示例
@RunWith(SpringRunner.class) @SpringBootTest public class ElasticSearchTest { @Autowired CpRepository cpRepository; @Autowired ElasticsearchTemplate elsTemplate;//ElasticsearchTemplate中提供了创建索引的API
@Test public void addIndexTest() { //创建索引 boolean indexRes = elsTemplate.createIndex(CpDocument.class); System.out.println("======创建索引结果:"+indexRes+"========="); //添加索引 CpDocument cpTest = new CpDocument(); cpTest.setId(1); cpTest.setName("阿里巴巴"); cpTest.setAddress("北京路12号"); cpRepository.save(cpTest); } @Test public void srarchTest() { //这个只做一个多字段的匹配查询示例,其它的可以查看API文档使用 //"name","address" 为匹配的字段 MultiMatchQueryBuilder multiMatchQuery = QueryBuilders.multiMatchQuery("阿里巴巴","address","name");//多字段匹配QueryBuilder SearchQuery searchQuery = new NativeSearchQueryBuilder()//构建查询对象 .withQuery(multiMatchQuery) .withIndices("cp_doc")//索引名 .withPageable(PageRequest.of(0, 10))//分页 .build(); IterableproductDtos = cpRepository.search(searchQuery); ArrayList CpDocuments = Lists.newArrayList(productDtos); for (CpDocument cpDocument : CpDocuments) { System.out.printf("企业名称:%s,企业地址:%s\n",cpDocument.getName(),cpDocument.getAddress()); } }
以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持。