use of org.elasticsearch.search.suggest.SuggestionBuilder in project pancm_project by xuwujing.
the class EsHighLevelRestSearchTest method search.
/**
* search查询使用示例
*
* @throws IOException
*/
private static void search() throws IOException {
/*
* 全文查询使用示例
*/
// 查询指定的索引库
SearchRequest searchRequest = new SearchRequest("user");
SearchSourceBuilder sourceBuilder = new SearchSourceBuilder();
// 搜索字段user为pancm的数据
MatchQueryBuilder matchQueryBuilder = new MatchQueryBuilder("user", "pancm");
// 设置模糊查询
matchQueryBuilder.fuzziness(Fuzziness.AUTO);
// 设置前缀长度
matchQueryBuilder.prefixLength(3);
// 设置最大扩展选项来控制查询的模糊过程
matchQueryBuilder.maxExpansions(10);
/*
* QueryBuilder也可以
*/
// QueryBuilder matchQueryBuilder = QueryBuilders.matchQuery("user", "kimchy")
// .fuzziness(Fuzziness.AUTO)
// .prefixLength(3)
// .maxExpansions(10);
SearchSourceBuilder searchSourceBuilder2 = new SearchSourceBuilder();
searchSourceBuilder2.query(matchQueryBuilder);
SearchRequest searchRequest2 = new SearchRequest();
searchRequest2.source(searchSourceBuilder2);
// 同步查询
SearchResponse searchResponse2 = client.search(searchRequest, RequestOptions.DEFAULT);
SearchHits hits = searchResponse2.getHits();
// 总条数和分值
long totalHits = hits.getTotalHits();
float maxScore = hits.getMaxScore();
hits.forEach(hit -> {
String index = hit.getIndex();
String type = hit.getType();
String id = hit.getId();
float score = hit.getScore();
Map<String, Object> sourceAsMap = hit.getSourceAsMap();
String string = hit.getSourceAsString();
System.out.println("Match查询的Map结果:" + sourceAsMap);
System.out.println("Match查询的String结果:" + string);
String documentTitle = (String) sourceAsMap.get("title");
// List<Object> users = (List<Object>) sourceAsMap.get("user");
Map<String, Object> innerObject = (Map<String, Object>) sourceAsMap.get("innerObject");
});
System.out.println("\n=================\n");
/*
* 高亮查询
*/
SearchSourceBuilder searchSourceBuilder3 = new SearchSourceBuilder();
HighlightBuilder highlightBuilder = new HighlightBuilder();
HighlightBuilder.Field highlightTitle = new HighlightBuilder.Field("title");
// 设置字段高亮字体
highlightTitle.highlighterType("user");
highlightBuilder.field(highlightTitle);
HighlightBuilder.Field highlightUser = new HighlightBuilder.Field("user");
highlightBuilder.field(highlightUser);
searchSourceBuilder3.highlighter(highlightBuilder);
SearchRequest searchRequest3 = new SearchRequest();
searchRequest3.source(searchSourceBuilder3);
// 同步查询
SearchResponse searchResponse3 = client.search(searchRequest3, RequestOptions.DEFAULT);
searchResponse3.getHits().forEach(hit -> {
Map<String, Object> map = hit.getSourceAsMap();
String string = hit.getSourceAsString();
System.out.println("Highlight查询的Map结果:" + map);
System.out.println("Highlight查询的String结果:" + string);
});
System.out.println("\n=================\n");
/**
* 聚合查询
*/
SearchSourceBuilder searchSourceBuilder4 = new SearchSourceBuilder();
// terms 就是分组统计 根据user进行分组并创建一个新的聚合user_
TermsAggregationBuilder aggregation = AggregationBuilders.terms("user_").field("user");
aggregation.subAggregation(AggregationBuilders.avg("average_age").field("age"));
searchSourceBuilder4.aggregation(aggregation);
SearchRequest searchRequest4 = new SearchRequest();
searchRequest4.source(searchSourceBuilder4);
// 同步查询
SearchResponse searchResponse4 = client.search(searchRequest4, RequestOptions.DEFAULT);
// 聚合查询返回条件
Aggregations aggregations = searchResponse4.getAggregations();
System.out.println("聚合查询");
for (Aggregation agg : aggregations) {
String type = agg.getType();
String name = agg.getName();
Terms terms = (Terms) aggregations.get(name);
for (Terms.Bucket bucket : terms.getBuckets()) {
System.out.println("条数:" + bucket.getDocCount());
System.out.println("key:" + bucket.getKey());
System.out.println("num:" + bucket.getKeyAsNumber());
Avg avg = bucket.getAggregations().get("average_age");
System.out.println("value:" + avg.getValue());
}
if (type.equals(TermsAggregationBuilder.NAME)) {
Bucket elasticBucket = ((Terms) agg).getBucketByKey("average_age");
long numberOfDocs = elasticBucket.getDocCount();
System.out.println("条数:" + numberOfDocs);
}
}
/*
* 建议查询
*/
SearchSourceBuilder searchSourceBuilder5 = new SearchSourceBuilder();
SuggestionBuilder termSuggestionBuilder = SuggestBuilders.termSuggestion("user").text("pancm");
SuggestBuilder suggestBuilder = new SuggestBuilder();
suggestBuilder.addSuggestion("suggest_user", termSuggestionBuilder);
searchSourceBuilder5.suggest(suggestBuilder);
SearchRequest searchRequest5 = new SearchRequest();
searchRequest5.source(searchSourceBuilder5);
// 同步查询
SearchResponse searchResponse5 = client.search(searchRequest5, RequestOptions.DEFAULT);
Suggest suggest = searchResponse5.getSuggest();
TermSuggestion termSuggestion = suggest.getSuggestion("suggest_user");
for (TermSuggestion.Entry entry : termSuggestion.getEntries()) {
for (TermSuggestion.Entry.Option option : entry) {
String suggestText = option.getText().string();
System.out.println("返回结果:" + suggestText);
}
}
}
Aggregations