如何使用spring data solr舍入日期过滤器查询?
我想使用fq=startDate:[2013-06-14T23:59:59.999Z/DAY TO 2013-06-14T23:59:59.999Z/DAY]
编写查询FilterQuery
。
如何使用FilterQuery
?
FilterQuery filterQuery = new SimpleFilterQuery();
filterQuery.addCriteria(new Criteria(EventDocument.FIELD_START_DATE).between(sc.getStartDate(), sc.getStartDate()));
非常感谢任何提示。
答案 0 :(得分:2)
最简单的可能是使用SimpleStringCriteria
String start = JavaDateConverter.INSTANCE.convert(sc.getStartDate())+"/DAY";
String end = JavaDateConverter.INSTANCE.convert(sc.getEndDate())+"/DAY";
Criteria criteria = new SimpleStringCriteria("[" + start + " TO " + end + "]");
注册自定义转换器会更复杂一些
@Configuration
@EnableSolrRepositories
public class SolrContext {
//..skipped solr server initialization to shorten
@Bean
public SolrTemplate solrTemplate() throws Exception {
SolrTemplate solrTemplate = new SolrTemplate(solrServerFactory());
solrTemplate.setSolrCore("collection1");
solrTemplate.registerQueryParser(SimpleQuery.class, queryParser());
return solrTemplate;
}
@Bean
public QueryParser queryParser() {
DefaultQueryParser queryParser = new DefaultQueryParser();
//register custom converter for Date
queryParser.registerConverter(RoundDayConverter.INSTANCE);
return queryParser;
}
private enum RoundDayConverter implements Converter<Date, String> {
INSTANCE;
private static final DateTimeFormatter FORMATTER = ISODateTimeFormat.dateTime().withZoneUTC();
@Override
public String convert(Date source) {
if (source == null) {
return "";
}
return ClientUtils.escapeQueryChars(FORMATTER.print(source.getTime())) + "/DAY";
}
}
}
由于以上内容适用于每个Date
,因此创建自定义类型并为其注册转换器可能是个好主意。