solr复杂查询(排序、过滤、高亮)
简单案例:
package cn.kingdee; import java.util.List; import java.util.Map; import org.apache.solr.client.solrj.SolrQuery; import org.apache.solr.client.solrj.SolrQuery.ORDER; import org.apache.solr.client.solrj.SolrServer; import org.apache.solr.client.solrj.SolrServerException; import org.apache.solr.client.solrj.impl.HttpSolrServer; import org.apache.solr.client.solrj.response.QueryResponse; import org.apache.solr.common.SolrDocument; import org.apache.solr.common.SolrDocumentList; import org.junit.Test; public class TestMyMannager { @Test public void queryIndex() throws Exception { //创建连接 SolrServer solrServer = new HttpSolrServer("http://localhost:8080/solr"); //创建一个query对象 SolrQuery solrQuery = new SolrQuery(); //设置默认的查询范围 solrQuery.set("df", "product_name"); //设置查询条件 solrQuery.setQuery("台灯"); //设置过滤条件 solrQuery.setFilterQueries("product_catalog_name:幽默杂货"); //设置排序条件 solrQuery.setSort("product_price",ORDER.desc); //分页处理 //开始索引为0 solrQuery.setStart(0); //每页显示多少行 solrQuery.setRows(8); //设置高亮(开启) solrQuery.setHighlight(true); //设置高亮域 solrQuery.addHighlightField("product_name"); //设置高亮前缀 solrQuery.setHighlightSimplePre("<em>"); //设置高亮后缀 solrQuery.setHighlightSimplePost("</em>"); //执行语句 QueryResponse query = solrServer.query(solrQuery); //取到查询结果集 SolrDocumentList results = query.getResults(); //共查询到商品数量 long numFound = results.getNumFound(); //遍历结果 String productname=""; for (SolrDocument doc : results) { Map<String, Map<String, List<String>>> highlighting = query.getHighlighting(); List<String> list = highlighting.get(doc.get("id")).get("product_name"); if (list!=null&&list.size()>0) { productname = list.get(0); }else{ productname=(String) doc.get("product_name"); } System.out.println(doc.get("id")); System.out.println(doc.get("product_name")); } } }
原文地址:https://www.cnblogs.com/sjzxs/p/9536428.html
时间: 2024-10-30 01:12:52