问题及解决方法

must和should组合查询，should失效。使用must嵌套查询，将should组成的bool查询包含在其中一个must查询中。

SearchRequest request = new SearchRequest();
request.indices("function_log");SearchSourceBuilder sourceBuilder = new SearchSourceBuilder();
BoolQueryBuilder boolQueryBuilder = QueryBuilders.boolQuery();
if (StringUtils.hasText(schoolName)) {boolQueryBuilder.must(QueryBuilders.termQuery("schoolName.keyword", schoolName));
}
if (StringUtils.hasText(typeFunction)) {boolQueryBuilder.must(QueryBuilders.termQuery("typeFunction.keyword", typeFunction));
}
if (StringUtils.hasText(startTime) && StringUtils.hasText(endTime)) {boolQueryBuilder.must(QueryBuilders.rangeQuery("createDate").gte(startTime + "T00:00:00.000Z").lte(endTime + "T23:59:59.000Z"));
}
BoolQueryBuilder shouldQuery = QueryBuilders.boolQuery();
shouldQuery.should().add(QueryBuilders.termQuery("description.keyword","查询学生信息表"));
shouldQuery.should().add(QueryBuilders.termQuery("description.keyword","获取学校访客数据"));
boolQueryBuilder.must(shouldQuery);sourceBuilder.query(boolQueryBuilder);
request.source(sourceBuilder);
System.out.println(sourceBuilder.toString());

GET /function_log/_search
{"query": {"bool": {"must": [{"term": {"schoolName.keyword": {"value": "测试学校","boost": 1}}},{"term": {"typeFunction.keyword": {"value": "教师端功能","boost": 1}}},{"range": {"createDate": {"from": "2023-08-01T00:00:00.000Z","to": "2023-08-07T23:59:59.000Z","include_lower": true,"include_upper": true,"boost": 1}}},{"bool": {"should": [{"term": {"description.keyword": {"value": "查询学生信息表","boost": 1}}},{"term": {"description.keyword": {"value": "获取学校访客数据","boost": 1}}}],"adjust_pure_negative": true,"boost": 1}}],"adjust_pure_negative": true,"boost": 1}}
}