wdcp网站备份,建一个分类信息网站,嵊州门户网站,网站建设网银IK分词器有几种模式
# 测试分词器
POST /_analyze
{text:黑马程序员学习java太棒了,analyzer: standard
}# 测试分词器
POST /_analyze
{text:黑马程序员学习java太棒了,analyzer: text:黑马程序员学习java太棒了,analyzer: standard
}# 测试分词器
POST /_analyze
{text:黑马程序员学习java太棒了,analyzer: ik_max_word
}# 测试分词器
POST /_analyze
{text:黑马程序员学习java太棒了,analyzer: ik_smart
}总结
ik_max_word最细切分 占用内存多但是分词多 ik_smart最少切分占用内存少但是分词少 standard中文没用
IK分词器如何拓展词条如何停用词条 配置你的ext.dic和stopword.dic ext.dic
mapping属性 文档操作 分词规则总结 CREATE TABLE tb_hotel (id bigint(20) NOT NULL COMMENT 酒店id,name varchar(255) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NOT NULL COMMENT 酒店名称,address varchar(255) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NOT NULL COMMENT 酒店地址,price int(10) NOT NULL COMMENT 酒店价格,score int(2) NOT NULL COMMENT 酒店评分,brand varchar(32) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NOT NULL COMMENT 酒店品牌,city varchar(32) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NOT NULL COMMENT 所在城市,star_name varchar(16) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NULL DEFAULT NULL COMMENT 酒店星级1星到5星1钻到5钻,business varchar(255) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NULL DEFAULT NULL COMMENT 商圈,latitude varchar(32) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NOT NULL COMMENT 纬度,longitude varchar(32) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NOT NULL COMMENT 经度,pic varchar(255) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NULL DEFAULT NULL COMMENT 酒店图片,PRIMARY KEY (id) USING BTREE
) ENGINE InnoDB CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci ROW_FORMAT Compact;# 酒店的mapping
PUT /hotel
{mappings: {properties: {id:{type: keyword},name:{type: text,analyzer: ik_max_word,copy_to: all},address:{type:keyword,index: false},price:{type:integer},score:{type:integer},brand:{type: keyword},city:{type:keyword},star_name:{type: keyword},business:{type: keyword,copy_to: all},location:{type:geo_point},pic:{type: keyword,index: false},all:{type: text,analyzer: ik_max_word}}}Java的测试代码
package cn.itcast.hotel.constants;public class HotelIndexConstants {public static final String MAPPING_TEMPLATE {\n \mappings\: {\n \properties\: {\n \id\:{\n \type\: \keyword\\n },\n \name\:{\n \type\: \text\,\n \analyzer\: \ik_max_word\,\n \copy_to\: \all\\n },\n \address\:{\n \type\:\keyword\,\n \index\: false\n },\n \price\:{\n \type\:\integer\\n },\n \score\:{\n \type\:\integer\\n },\n \brand\:{\n \type\: \keyword\\n },\n \city\:{\n \type\:\keyword\\n },\n \star_name\:{\n \type\: \keyword\\n },\n \business\:{\n \type\: \keyword\,\n \copy_to\: \all\\n },\n \location\:{\n \type\:\geo_point\\n },\n \pic\:{\n \type\: \keyword\,\n \index\: false\n },\n \all\:{\n \type\: \text\,\n \analyzer\: \ik_max_word\\n }\n }\n }\n ;
}
package cn.itcast.hotel;import cn.itcast.hotel.pojo.Hotel;
import cn.itcast.hotel.pojo.HotelDoc;
import cn.itcast.hotel.service.impl.HotelService;
import com.alibaba.fastjson.JSON;
import org.apache.http.HttpHost;
import org.elasticsearch.action.admin.indices.delete.DeleteIndexRequest;
import org.elasticsearch.action.delete.DeleteRequest;
import org.elasticsearch.action.get.GetRequest;
import org.elasticsearch.action.get.GetResponse;
import org.elasticsearch.action.index.IndexRequest;
import org.elasticsearch.client.RequestOptions;
import org.elasticsearch.client.RestClient;
import org.elasticsearch.client.RestHighLevelClient;
import org.elasticsearch.client.indices.CreateIndexRequest;
import org.elasticsearch.common.xcontent.XContentType;
import org.junit.jupiter.api.AfterEach;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;import java.io.IOException;import static cn.itcast.hotel.constants.HotelIndexConstants.MAPPING_TEMPLATE;/*** author lst* date 2023年11月23日 13:38*/
SpringBootTest
public class HotelT {private RestHighLevelClient restHighLevelClient;AutowiredHotelService hotelService;BeforeEachpublic void before() {restHighLevelClient new RestHighLevelClient(RestClient.builder(HttpHost.create(http://localhost:9200)));}AfterEachvoid tearDown() throws IOException {restHighLevelClient.close();}Testpublic void testCreateIndex() throws IOException {CreateIndexRequest request new CreateIndexRequest(hotel);request.source(MAPPING_TEMPLATE, XContentType.JSON);restHighLevelClient.indices().create(request, RequestOptions.DEFAULT);}Testpublic void testDeleteIndex() throws IOException {DeleteIndexRequest request new DeleteIndexRequest(hotel);restHighLevelClient.indices().delete(request, RequestOptions.DEFAULT);}
}
