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update README.md.

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邢鹏成 2022-02-22 14:03:56 +00:00 committed by Gitee
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@ -42,28 +42,28 @@ Easy-Es是一款简化ElasticSearch搜索引擎操作的开源框架,简化`CRUD
```java ```java
// 使用Easy-Es仅需3行代码即可完成查询 // 使用Easy-Es仅需3行代码即可完成查询
LambdaEsQueryWrapper<Document> wrapper = new LambdaEsQueryWrapper<>(); LambdaEsQueryWrapper<Document> wrapper = new LambdaEsQueryWrapper<>();
wrapper.eq(Document::getTitle, "中国功夫").eq(Document::getCreator, "老汉"); wrapper.eq(Document::getTitle, "中国功夫").eq(Document::getCreator, "老汉");
List<Document> documents = documentMapper.selectList(wrapper); List<Document> documents = documentMapper.selectList(wrapper);
``` ```
```java ```java
// 传统方式, 直接用RestHighLevelClient进行查询 需要11行代码,还不包含解析JSON代码 // 传统方式, 直接用RestHighLevelClient进行查询 需要11行代码,还不包含解析JSON代码
String indexName = "document"; String indexName = "document";
SearchRequest searchRequest = new SearchRequest(indexName); SearchRequest searchRequest = new SearchRequest(indexName);
BoolQueryBuilder boolQueryBuilder = QueryBuilders.boolQuery(); BoolQueryBuilder boolQueryBuilder = QueryBuilders.boolQuery();
TermQueryBuilder titleTerm = QueryBuilders.termQuery("title", "中国功夫"); TermQueryBuilder titleTerm = QueryBuilders.termQuery("title", "中国功夫");
TermsQueryBuilder creatorTerm = QueryBuilders.termsQuery("creator", "老汉"); TermsQueryBuilder creatorTerm = QueryBuilders.termsQuery("creator", "老汉");
boolQueryBuilder.must(titleTerm); boolQueryBuilder.must(titleTerm);
boolQueryBuilder.must(creatorTerm); boolQueryBuilder.must(creatorTerm);
SearchSourceBuilder searchSourceBuilder = new SearchSourceBuilder(); SearchSourceBuilder searchSourceBuilder = new SearchSourceBuilder();
searchSourceBuilder.query(boolQueryBuilder); searchSourceBuilder.query(boolQueryBuilder);
searchRequest.source(searchSourceBuilder); searchRequest.source(searchSourceBuilder);
try { try {
SearchResponse searchResponse = restHighLevelClient.search(searchRequest, RequestOptions.DEFAULT); SearchResponse searchResponse = restHighLevelClient.search(searchRequest, RequestOptions.DEFAULT);
// 然后从searchResponse中通过各种方式解析出DocumentList 省略这些代码... // 然后从searchResponse中通过各种方式解析出DocumentList 省略这些代码...
} catch (IOException e) { } catch (IOException e) {
e.printStackTrace(); e.printStackTrace();
} }
``` ```
> * 以上只是简单查询演示,实际使用场景越复杂,效果就越好,平均可节省3-5倍代码量 > * 以上只是简单查询演示,实际使用场景越复杂,效果就越好,平均可节省3-5倍代码量
> * 上述功能仅供演示,仅为Easy-Es支持功能的冰山一角 > * 上述功能仅供演示,仅为Easy-Es支持功能的冰山一角