elasticsearch springboot 实现分词搜索

桃扇骨 2022-02-02 17:07 379阅读 0赞

实现分词搜索之前必须保证您的springboot 已经连接上了你的elasticsearch

这里展示下我的配置信息和pom文件

application.yml

spring: 
      data: 
        elasticsearch: 
        ####集群名称
          cluster-name: elasticsearch
        ####地址 
          cluster-nodes: 47.107.91.27:9300

<parent>
    		<groupId>org.springframework.boot</groupId>
    		<artifactId>spring-boot-starter-parent</artifactId>
    		<version>2.0.0.RELEASE</version>
    		<relativePath /> 
    	</parent>
    	<dependencies>
    		<dependency>
    			<groupId>org.springframework.boot</groupId>
    			<artifactId>spring-boot-starter-web</artifactId>
    		</dependency>
    		<dependency>
    			<groupId>org.springframework.boot</groupId>
    			<artifactId>spring-boot-starter-data-elasticsearch</artifactId>
    		</dependency>
    		<dependency>
    			<groupId>org.projectlombok</groupId>
    			<artifactId>lombok</artifactId>
    		</dependency>
    		<dependency>
    			<groupId>com.google.collections</groupId>
    			<artifactId>google-collections</artifactId>
    			<version>1.0-rc2</version>
    		</dependency>
    		
    		<dependency>
    			<groupId>org.springframework.boot</groupId>
    			<artifactId>spring-boot-starter-freemarker</artifactId>
    		</dependency>
    </dependencies>

首先创建实体类

@Document(indexName = "***", type = "***")
    @Data
    public class UserEntity {
    	@Id
    	private String id;
    	private String name;
    	private int sex;
    	private int age;
    }

@Data  
是设置get set方法 插件  
indexName type 设置好即可

创建对应的Dao层 记住继承的是ElasticsearchRepository 只有这个类是分词查找

@Component
    public interface UserReposiory extends ElasticsearchRepository<UserEntity, String> {
    	Iterable<UserEntity> findByNameContaining(String name);
    }

@RestController
    public class EsController {
    
    	@Autowired
    	private UserReposiory userReposiory;
    	
    	@RequestMapping("/text")
    	public List<UserEntity> search(String name,
    			@PageableDefault(page = 0, value = 2) Pageable pageable) {
    		// 1.创建查询对象
    		BoolQueryBuilder boolQuery = QueryBuilders.boolQuery();
    			MatchQueryBuilder matchQuery = QueryBuilders.matchQuery("name", name);
    			boolQuery.must(matchQuery);
    		// 2.调用查询接口
    		Iterable<UserEntity> search = userReposiory.search(boolQuery, pageable);
    		// 3.将迭代器转换为集合
    		return Lists.newArrayList(search);
    	}
    }

启动类

@SpringBootApplication
    @EnableElasticsearchRepositories(basePackages = "com.cc.reposiory")
    public class AppEs {
    	public static void main(String[] args) {
    		SpringApplication.run(AppEs.class, args);
    	}
    }

得到结果  
可以看到 springboot 蚂蚁 被分为2个关键词 一个是springboot 一个是蚂蚁（使用ki分词器，如果是默认的分词器，中文会每个字都会作为一个分词）  
springboot陈晨因为 springboot 关键词而搜出来了  
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