d3.js可视化neo4j图数据库（正式篇）——3、两个数据库的在Idea中的配置

import org.neo4j.driver.v1.*;

import static org.neo4j.driver.v1.Values.parameters;

public class SmallExample

{

    Driver objects are thread-safe and are typically made available application-wide.

    Driver driver;

    public SmallExample(String uri, String user, String password)

    {

        driver = GraphDatabase.driver(uri, AuthTokens.basic(user, password));

    }

    private void addPerson(String name)

    {

        Sessions are lightweight and disposable connection wrappers.

        try (Session session = driver.session())

        {

            Wrapping Cypher in an explicit transaction provides atomicity

            and makes handling errors much easier.

            try (Transaction tx = session.beginTransaction())

            {

                tx.run("MERGE (a:Person {name: {x}})", parameters("x", name));

                tx.success();  Mark this write as successful.

            }

        }

    }

    private void printPeople(String initial)

    {

        try (Session session = driver.session())

        {

            / Auto-commit transactions are a quick and easy way to wrap a read.

            StatementResult result = session.run(

                    "MATCH (a:Person) WHERE a.name STARTS WITH {x} RETURN a.name AS name",

                    parameters("x", initial));

            // Each Cypher execution returns a stream of records.

            while (result.hasNext())

            {

                Record record = result.next();

                // Values can be extracted from a record by index or name.

                System.out.println(record.get("name").asString());

            }

        }

    }

    public void close()

    {

        // Closing a driver immediately shuts down all open connections.

        driver.close();

    }

    public static void main(String... args)

    {

        SmallExample example = new SmallExample("bolt://localhost:7687", "neo4j", "password");

        example.addPerson("Ada");

        example.addPerson("Alice");

        example.addPerson("Bob");

        example.printPeople("A");

        example.close();

    }

}