Date now = new Date();
doc.addField("date", DateUtil.getThreadLocalDateFormat().format(now));//<co id="co.solrj.date"/>
doc.addField("description", description);
doc.addField("categories_t", "Fairy Tale, Sports");//<co id="co.solrj.dynamic.field"/>
solr.add(doc);//<co id="co.solrj.add"/>
solr.commit();//<co id="co.solrj.commit"/>
/*
<calloutlist>
<callout arearefs="co.solrj.server"><para>Create a HTTP-based Solr Server connection.</para></callout>
<callout arearefs="co.solrj.unique"><para>The schema used for this instance of Solr requires a unique field named "id"</para></callout>
<callout arearefs="co.solrj.title"><para>Add a Title field to our document and boost it to be 5 times as important as the other fields</para></callout>