import org.neo4j.graphdb.*;
public class Neo4jDemo {
public static void main(String[] args) {
GraphDatabaseService graphDb = new GraphDatabaseFactory()
.newEmbeddedDatabaseBuilder("path/to/neo4j/database")
.newGraphDatabase();
try (Transaction tx = graphDb.beginTx()) {
Node node1 = graphDb.createNode();
node1.setProperty("name", "Alice");
Node node2 = graphDb.createNode();
node2.setProperty("name", "Bob");
tx.success();
}
try (Transaction tx = graphDb.beginTx()) {
Node node1 = graphDb.getNodeById(1);
Node node2 = graphDb.getNodeById(2);
Relationship rel = node1.createRelationshipTo(node2, RelationshipType.withName("FRIEND"));
rel.setProperty("since", 2020);
tx.success();
}
try (Transaction tx = graphDb.beginTx()) {
Node node1 = graphDb.getNodeById(1);
System.out.println("Name: " + node1.getProperty("name"));
for (Relationship rel : node1.getRelationships()) {
System.out.println("Relation: " + rel.getType().name());
System.out.println("Since: " + rel.getProperty("since"));
}
tx.success();
}
graphDb.shutdown();
}
}
