Gremlin用于更新现有顶点的元属性

import org.apache.tinkerpop.gremlin.driver.Client;
import org.apache.tinkerpop.gremlin.driver.Cluster;
import org.apache.tinkerpop.gremlin.driver.remote.DriverRemoteConnection;
import org.apache.tinkerpop.gremlin.process.traversal.dsl.graph.GraphTraversalSource;
import org.apache.tinkerpop.gremlin.structure.Vertex;

public class GremlinUpdateExample {
    public static void main(String[] args) {
        // 连接到图数据库
        Cluster cluster = Cluster.build("localhost").create();
        Client client = cluster.connect();
        GraphTraversalSource g = GraphTraversalSource.build()
                .withRemote(DriverRemoteConnection.using(client))
                .create();

        // 更新顶点的元属性
        Vertex user = g.V("user1").next();
        user.property("age", 31).iterate();

        // 关闭连接
        client.close();
        cluster.close();
    }
}