【Java】SpringBoot+ES+Ik查询的问题

目前来说主要是一个字段要精准匹配。一个字段要分词匹配。我现有的查询貌似只能分词匹配。精准匹配的效果没实现。不知道是怎么回事。

@Data
@Document(indexName = "interview", type = "blog", useServerConfiguration = true, createIndex = false)
public class ESCoderVo {
@Id
private Long id;
@Field(type = FieldType.Keyword,analyzer = "ik_max_word")
private String title;
@Field(type = FieldType.Keyword,analyzer = "ik_smart")
private  String  brief;
@Field(type = FieldType.Keyword,analyzer = "ik_smart")
private  String  label;
@Field(type = FieldType.Keyword,analyzer = "ik_smart")
private  String content;
@Field(type = FieldType.Date, format = DateFormat.custom, pattern = "yyyy-MM-dd HH:mm:ss")
private String createTime;
@Field(type = FieldType.Keyword,analyzer = "ik_smart")
private String author;
@Field(type = FieldType.Keyword,analyzer = "ik_smart")
private  String  realUrl;
@Field(type = FieldType.Keyword,analyzer = "ik_smart")
private  String txt;
@Field(type = FieldType.Keyword,analyzer = "ik_smart")
private  String type;
@Field(type = FieldType.Keyword,analyzer = "ik_smart")
private  Integer phaseId;
}

使用的代码

   @ApiOperation(value = "面经搜索")
@GetMapping(value = "/newcoder/search")
public Page<ESCoderVo> search(@RequestParam(name = "pageNo",required = false) Integer pageNo,
@RequestParam(name = "pageSize",required = false) Integer pageSize,
@RequestParam(name = "keyword",required = false)String keyword
){
if (pageNo == null){
pageNo = 1;
}
if (pageSize==null){
pageSize =10;
}
Pageable pageable = PageRequest.of(pageNo,pageSize);// （当前页， 每页记录数， 排序方式）
//若索引不存在
//        coderRepository.deleteAll();
//        elasticsearchTemplate.deleteIndex(ESCoderVo.class);
if(!elasticsearchTemplate.indexExists(ESCoderVo.class)){
elasticsearchTemplate.deleteIndex(ESCoderVo.class);
//创建索引
elasticsearchTemplate.createIndex(ESCoderVo.class);
List<NewCoderDTO> list = newCoderRepository.findAll();
//将MySQL数据插入到ES
if(!CollectionUtils.isEmpty(list)){
List<ESCoderVo> esList = JSON.parseArray(JSON.toJSONString(list), ESCoderVo.class);
coderRepository.saveAll(esList);
}
}
BoolQueryBuilder builder = QueryBuilders.boolQuery();
//
builder.must(QueryBuilders.termQuery("type","Java"));
SearchQuery searchQuery = new NativeSearchQueryBuilder()
.withQuery(builder)
.withQuery(structureQuery("阿里百度"))
.build();
//builder.should(QueryBuilders.matchQuery("title","阿里百度").boost(6.0f).analyzer("ik_max_word"));
//builder.should(QueryBuilders.matchQuery("label","阿里百度").boost(5.0f).analyzer("ik_smart"));
//        builder.should(QueryBuilders.matchQuery("txt","阿里百度").boost(4.0f).analyzer("ik_smart"));
//Page<ESCoderVo> page = coderRepository.search(searchQuery);
//System.out.println(page);
Page<ESCoderVo> page = coderRepository.search(searchQuery);
//Page<ESCoderVo> page = (Page<ESCoderVo>) coderRepository.search(builder,pageable);
return page;
}
public DisMaxQueryBuilder structureQuery(String content) {
//使用dis_max直接取多个query中，分数最高的那一个query的分数即可
DisMaxQueryBuilder disMaxQueryBuilder = QueryBuilders.disMaxQuery();
//boost 设置权重,只搜索匹配name和disrector字段
//QueryBuilder typeQuery = QueryBuilders.termQuery("type","Java");
QueryBuilder ikNameQuery = QueryBuilders.matchQuery("title", content).boost(2f);
QueryBuilder ikBriefQuery = QueryBuilders.matchQuery("label", content).boost(2f);
QueryBuilder ikDirectorQuery = QueryBuilders.matchQuery("txt", content).boost(2f);
disMaxQueryBuilder.add(ikNameQuery);
//disMaxQueryBuilder.add(typeQuery);
disMaxQueryBuilder.add(ikBriefQuery);
disMaxQueryBuilder.add(ikDirectorQuery);
return disMaxQueryBuilder;
}

目前查出来的包含了type为产品和C++类型等其他类型的数据

【Java】SpringBoot+ES+Ik查询的问题

回答

你说的对，如果type: text就无法用term精准搜索了，这时候只能用copy_to功能。
新建一个字段title_keyword切类型是type: keyword。,把title字段copy过去。精确搜索的时候用title_keyword字段。
参考文档链接：
https://www.elastic.co/guide/...
【Java】SpringBoot+ES+Ik查询的问题

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