solr-group by

baiyunjn

solr group by查询：
1.solr wiki参考：[url]http://wiki.apache.org/solr/FieldCollapsing[/url
2.solrj group查询例子：

SolrQuery SolrQuery = new SolrQuery("*:*");
solrQuery.addFilterQuery("display:1");
solrQuery.addFilterQuery("activityBeginTime:[* TO NOW]");
solrQuery.addFilterQuery("activityEndTime:[NOW TO *]");
solrQuery.setGroup(true);
solrQuery.setParam(GroupParams.GROUP_QUERY,  {"id:1","id:2"});
solrQuery.setParam(GroupParams.GROUP_LIMIT, pageSize + "");
solrQuery.setParam(GroupParams.GROUP_OFFSET, pageSize * (page - 1) + "");
solrQuery.setParam(GroupParams.GROUP_LIMIT, "1");
solrQuery.setParam(GroupParams.GROUP_SORT, "id desc", "sort asc");
solrQuery.setRows(0);
QueryResponse qr = searchSource.query(searchQuery, SolrRequest.METHOD.POST);
GroupResponse groupResponse = qr.getGroupResponse();
List<GroupCommand> list = groupResponse.getValues();
for (GroupCommand gc : list) {
List<Group> gs = gc.getValues();
if (CollectionUtils.isNotEmpty(gs)) {
for (Group g : gs) {
SolrDocumentList sds = g.getResult();
if (CollectionUtils.isNotEmpty(sds)) {
for (SolrDocument doc : sds) {
String id= doc.getFieldValue("id").toString();
}
}
}
}
}
}
   
版权声明：本文为博主原创文章，未经博主允许不得转载。