IndexTest.java
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package com.sl.ms.search;
import co.elastic.clients.elasticsearch.ElasticsearchClient;
import co.elastic.clients.elasticsearch.indices.CreateIndexResponse;
import co.elastic.clients.elasticsearch.indices.DeleteIndexResponse;
import co.elastic.clients.elasticsearch.indices.GetIndexResponse;
import co.elastic.clients.elasticsearch.indices.PutMappingResponse;
import lombok.extern.slf4j.Slf4j;
import org.junit.jupiter.api.Test;
import org.springframework.boot.test.context.SpringBootTest;
import javax.annotation.Resource;
import java.io.IOException;
/**
* ES索引相关测试
**/
@Slf4j
@SpringBootTest
class IndexTest {
@Resource
private ElasticsearchClient client;
private static final String INDEX_NAME = "person";
/**
* 创建索引
*
* @throws IOException IO异常
*/
@Test
void createIndex() throws IOException {
CreateIndexResponse response = client.indices().create(builder -> builder
// 设置索引分片：number_of_shards：主分片数，默认为1；number_of_replicas：副本分片数，默认为1
// 合理设置索引分片可以提高ES的查询性能
.settings(indexSettingsBuilder -> indexSettingsBuilder.numberOfReplicas("1").numberOfShards("2"))
.mappings(typeMappingBuilder -> typeMappingBuilder
.properties("age", propertyBuilder -> propertyBuilder.integer(integerNumberPropertyBuilder -> integerNumberPropertyBuilder))
.properties("name", propertyBuilder -> propertyBuilder.keyword(keywordPropertyBuilder -> keywordPropertyBuilder))
.properties("phone", propertyBuilder -> propertyBuilder.text(textPropertyBuilder -> textPropertyBuilder.analyzer("whitespace").searchAnalyzer("whitespace")))
.properties("address", propertyBuilder -> propertyBuilder.text(textPropertyBuilder -> textPropertyBuilder.analyzer("ik_max_word").searchAnalyzer("ik_max_word")))
)
.index(INDEX_NAME));
log.info("索引创建是否成功：{}", response.acknowledged());
}
/**
* 修改 _mapping 信息
* 字段可以新增，已有的字段只能修改字段的 search_analyzer 属性。
*
* @throws IOException IO异常
*/
@Test
void modifyIndex() throws IOException {
PutMappingResponse response = client.indices().putMapping(typeMappingBuilder -> typeMappingBuilder
.index(INDEX_NAME)
// 已有字段和之前一样，则不变
.properties("age", propertyBuilder -> propertyBuilder.integer(integerNumberPropertyBuilder -> integerNumberPropertyBuilder))
// 已有字段修改search_analyzer属性
.properties("address", propertyBuilder -> propertyBuilder.text(textPropertyBuilder -> textPropertyBuilder.analyzer("ik_max_word").searchAnalyzer("ik_smart")))
// 新增字段
.properties("sex", propertyBuilder -> propertyBuilder.integer(integerNumberPropertyBuilder -> integerNumberPropertyBuilder))
);
log.info("修改索引是否成功：{}", response.acknowledged());
}
/**
* 删除索引
*
* @throws IOException IO异常
*/
@Test
void deleteIndex() throws IOException {
DeleteIndexResponse response = client.indices().delete(builder -> builder.index(INDEX_NAME));
log.info("删除索引是否成功：{}", response.acknowledged());
}
/**
* 查询索引列表
*
* @throws IOException IO异常
*/
@Test
void getIndex() throws IOException {
// 此处使用 * 也可以
// 同时需要注意，在反序列化时某些索引的属性无法识别，该方法可能会执行失败
GetIndexResponse response = client.indices().get(builder -> builder.index("_all"));
log.info(response.result().toString());
}
/**
* 查询索引是否存在
*
* @throws IOException IO异常
*/
@Test
void existsIndex() throws IOException {
boolean exists = client.indices().exists(e -> e.index(INDEX_NAME)).value();
log.info("person索引是否存在：{}", exists);
}
/**
* 查询索引详情
*
* @throws IOException IO异常
*/
@Test
void getIndexDetail() throws IOException {
// 该方法需要查询ES中存在的索引，否则会报错
GetIndexResponse response = client.indices().get(builder -> builder.index(INDEX_NAME));
log.info(response.result().toString());
}
}