Before you can use the SolrJ API, you need to add some dependencies to your "pom.xml" file.
Here's the minimal dependencies needed in order for the following examples to work.
<dependency> <groupId>org.apache.solr</groupId> <artifactId>solr-solrj</artifactId> <version>7.6.0</version> </dependency> <dependency> <groupId>org.apache.solr</groupId> <artifactId>solr-core</artifactId> <version>7.6.0</version> </dependency>