solr中只查询某一个字段的设置与设置时间排序

来源：互联网发布：net 查看端口编辑：程序博客网时间：2024/05/29 04:34

public static void selectSolr(LBHttpSolrServer solrServer){
  SolrQuery query = new SolrQuery();
  query.setQuery("*:*");
  query.setFields("fl","enterpriseId");

query.addSort(new SortClause("pubDate", ORDER.desc)); // 排序
  QueryResponse rsp;
  int totalRecord=0;
  int count=0;
   try {
    rsp = solrServer.query(query);
    SolrDocumentList solrList = rsp.getResults();
    totalRecord=(int)solrList.getNumFound();
     if(solrList!=null&&solrList.size()>0){
      for(SolrDocument solrDocument : solrList){
       String epId=solrDocument.getFieldValue("enterpriseId")==null?"":solrDocument.getFieldValue("enterpriseId").toString();
      String name= solrDocument.getFieldValue("enterpriseName")==null?"":solrDocument.getFieldValue("enterpriseName").toString();
      System.out.println(epId+">>"+name);
      if(count==3){
       break;

      }
      count++;
      }

     }
   }
   catch(Exception e){
    e.printStackTrace();
   }
}

显示结果：

eead7c132619d16a6060e33457ce5fba>>
eecee3c8ed8db4595ade4d96208e08bf>>
ef72e89dec2ab2223a352d2d02403b77>>
ef73603e92f92b4d680badbbbf8ad4f6>>

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