网站建设开票多少个点,wordpress 子主题插件,网站建设项目标书,做电影网站用的云盘文章目录效果展示二、使用步骤1.引入maven依赖2. 编写spplication.properties3.配置客户端4.高亮搜索5.转换成实体对象总结效果展示
虽然看起来巴适#xff0c;但是挺简单的#xff01; #x1f4dd; 英文检索 #x1f4dd; 中文单字检索
二、使用步骤
1.引入maven依赖…
文章目录效果展示二、使用步骤1.引入maven依赖2. 编写spplication.properties3.配置客户端4.高亮搜索5.转换成实体对象总结效果展示
虽然看起来巴适但是挺简单的 英文检索 中文单字检索
二、使用步骤
1.引入maven依赖
dependencygroupIdorg.springframework.boot/groupIdartifactIdspring-boot-starter-data-elasticsearch/artifactId
/dependency2. 编写spplication.properties
elasticsearch.hostlocalhost
elasticsearch.port92003.配置客户端
/*** 配置客户端* author BreezAm*/
Data
Configuration
ConfigurationProperties(prefix elasticsearch)
public class EsConfig extends AbstractElasticsearchConfiguration {private String host;private int port;Overridepublic RestHighLevelClient elasticsearchClient() {RestClientBuilder builder RestClient.builder(new HttpHost(host, port));return new RestHighLevelClient(builder);}
}4.高亮搜索
/*** 文章搜索** author BreezAm* email lx90352163.com* date 2021-08-15 18:05:46*/
Service
public class EsSearchService {Autowiredprivate RestHighLevelClient restHighLevelClient;/*** 高亮搜索** param indices 索引名称* param name 搜索的字段 高亮显示的字段* param key 搜索的关键字* return* throws IOException*/public ListMapString, Object search(String indices, String name, String key) throws IOException {ListMapString, Object list new ArrayList();SearchRequest request new SearchRequest();request.indices(indices);SearchSourceBuilder builder new SearchSourceBuilder();TermQueryBuilder queryBuilder QueryBuilders.termQuery(name, key);HighlightBuilder highlightBuilder new HighlightBuilder();highlightBuilder.requireFieldMatch(false);highlightBuilder.preTags(font colorred size4);highlightBuilder.postTags(/font);highlightBuilder.field(name);builder.highlighter(highlightBuilder);builder.query(queryBuilder);request.source(builder);SearchResponse search restHighLevelClient.search(request, RequestOptions.DEFAULT);SearchHits hits search.getHits();for (SearchHit hit : hits) {MapString, Object sourceAsMap hit.getSourceAsMap();MapString, HighlightField fields hit.getHighlightFields();HighlightField title fields.get(name);if (title ! null) {Text[] fragments title.getFragments();String t ;for (Text text : fragments) {t text t;}sourceAsMap.put(name, t);}list.add(sourceAsMap);}return list;}
}5.转换成实体对象
private ListArticle getArticles(String key) throws IOException {ListArticle list new ArrayList();ListMapString, Object search esSearchService.search(article, title, key);for (MapString, Object map : search) {Article article new Article();article.setId(Integer.valueOf(map.get(id).toString()));article.setTitle(map.get(title).toString());article.setCoverUrl(map.get(coverUrl).toString());article.setContent(map.get(content).toString());article.setPublishDate(stringToDate(map.get(publishDate).toString()));article.setReadNum(Integer.valueOf(map.get(readNum).toString()));article.setCommentNum(Integer.valueOf(map.get(commentNum).toString()));article.setSummary(map.get(summary).toString());list.add(article);}return list;}总结
本文简单实现了Elasticsearch的一个应用场景其中还有些问题那就是对中文只能单字搜索英文可以进行单词检索如果要对中文进行多字检索那就需要使用中文分词器推荐一款中文分词器elasticsearch-analysis-ik
