每当我在Solr上执行查询时,即使是最简单的查询*:*,我也会收到错误消息at org.apache.solr.client.solrj.request.QueryRequest.process(QueryRequest.java:100)
at org.apache.solr.client.solrj.SolrServer
Solrj版本5.2.0public void testPingSolrWhenServerDown2() throws Exception { at org.apache.solr.client.solrj.request.SolrPing.createResponse(SolrPing.java:36)
at org.apache.solr.client.solrj.SolrRequest.proce