第十一章-SpringBoot 与检索
ElasticSearch 分布式搜索服务,底层基于 Lucene
安装 elasticsearch
docker search elasticsearch docker pull elasticsearch docker images docker run -e ES_JAVA_OPTS="-Xms256m -Xmx256m" -d -p 9200:9200 -p 9300:9300 --name ES01 elasticsearch
http://localhost:9200/
Elasticsearch 快速入门
文档：https://www.elastic.co/guide/cn/elasticsearch/guide/current/index.html
ES: 集群-索引-类型-文档-属性 MySQL: ?-数据库-表-记录-列
使用 PostMan 发送请求
请求方式
POST /{index}/{type}/{id}
基本操作
# 存入文档 PUT /data/employee/1 { "name": "Tom", "age": 23 } # 获取文档 GET /data/employee/1 # 检查存在 HEAD /data/employee/4 # 返回状态码 # 存在：200 # 不存在：404 # 删除 DELETE http://localhost:9200/data/employee/3 # 更新文档 PUT /data/employee/1 { "name": "Tom", "age": 24 } # 搜索数据 GET /data/employee/_search # 使用查询字符串 GET /data/employee/_search?q=name:Tom # 使用查询体 POST /data/employee/_search { "query": { "match": { "name": "Tom" } } } # 复杂查询 POST /data/employee/_search { "query": { "bool": { "must": { "match": { "name": "Tom" } }, "filter": { "range": { "age": { "gt": 20 } } } } } } # 短语搜索(必须完全匹配) POST /data/employee/_search { "query": { "match_phrase": { "name": "Tom Steve" } } } # 高亮结果 会增加em标签 POST /data/employee/_search { "query": { "match_phrase": { "name": "Tom Steve" } }, "highlight": { "fields": { "name": {} } } }
SpringBoot 整合 Jest 操作 ES
依赖
<dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-data-elasticsearch</artifactId> </dependency>
SpringBoot 支持两种技术和 ES 交互
- Jest 默认不生效 io.searchbox.client.JestClient
- SpringData ElasticSearch 操作 ES
- Client
- ElasticsearchTemplate
- ElasticSearchRepository
1、使用 Jest
Github: https://github.com/searchbox-io/Jest
<dependency> <groupId>io.searchbox</groupId> <artifactId>jest</artifactId> <version>5.3.4</version> </dependency>
版本适配
Spring Data Release Train |
Spring Data Elasticsearch |
Elasticsearch |
Spring Boot |
Neumann |
4.0.x |
7.6.2 |
2.3.x |
Moore |
3.2.x |
6.8.6 |
2.2.x |
Lovelace |
3.1.x |
6.2.2 |
2.1.x |
Kay |
3.0.x |
5.5.0 |
2.0.x |
Ingalls |
2.1.x |
2.4.0 |
1.5.x |
来源：
https://docs.spring.io/spring-data/elasticsearch/docs/4.0.2.RELEASE/reference/html/#preface.versions
