Solrj API读取core 索引库数据

private static String zkHost = "ip:2181,ip:2181,ip:2181";
 private static CloudSolrServer solrServer = new CloudSolrServer(zkHost);
public static Map<String, Object> solrCloudR() throws Exception {

        Map<String, Object> mapResult = new HashMap<String, Object>();
        String zkHost = "ip:2181";
        CloudSolrServer solrServer = new CloudSolrServer(zkHost);
        solrServer.setDefaultCollection("collection1");
        SolrQuery solrQuery = new SolrQuery();

        solrQuery.set("q", "*:*");
        QueryResponse response = solrServer.query(solrQuery);
        SolrDocumentList results = response.getResults();
        response.getResults().getNumFound();
        mapResult.put("results:", results);
        mapResult.put("resultNums", response.getResults().getNumFound());
        for (SolrDocument  solrDocument: results){
            Collection<String> fieldNames = solrDocument.getFieldNames();
            for(String field:fieldNames){
               System.out.println(field + "=" +solrDocument.get(field));
            }
        }
        System.out.println(results.size());
        return mapResult;

    }

public static Map<String, Object> solrSearch(String skey) throws SolrServerException{
		Map<String, Object> mapResult = new HashMap<String, Object>();
		solrServer.setDefaultCollection("collection1");
		ModifiableSolrParams params = new ModifiableSolrParams();
        params.set("q", skey);
        //params.set("defType", "edismax");
        params.set("start", "0");
        mapResult.put("results:", mapResult);
        QueryResponse response = solrServer.query(params);
        SolrDocumentList results = response.getResults();
        for (int i = 0; i < results.size(); ++i) {
            System.out.println(results.get(i));
        }
        return mapResult;
	}

输出结果：

SolrDocument{createtime=Fri Aug 14 09:16:35 PDT 2015, avgfeel=0, content=[台湾], id=10, articlenum=0, updatetime=Wed Aug 19 05:45:54 PDT 2015, sentencenum=11, state=1, _version_=1509912377408094208}
SolrDocument{uid=2, feel=100, updatetime=Tue Aug 18 17:38:36 PDT 2015, state=1, createtime=Tue Aug 18 17:38:41 PDT 2015, id=7, content=[听说台湾明星更喜欢下雨天],

用URL的方式删除索引库数据：

http://192.168.0.157:8983/solr/update/?stream.body=%3Cdelete%3E%3Cquery%3E*:*%3C/query%3E%3C/delete%3E&stream.contentType=text/xml;charset=utf-8&commit=true