如果我在应用程序中使用graph示例添加顶点和边，然后查询这些顶点和边，有时查询结果会向我发送顶点和边，有时不会，但是如果我创建一个指向服务器的junit测试，我就能够看到顶点和边。如果我掉一个顶点或边，也会发生同样的情况

What I'm missing?

============= Class to work with Vertex and Edge =================

public class JanusGraphRepository implements GraphRepository {

    private Graph graph;
    private GraphTraversalSource g;

    public JanusGraphRepository(Graph janusGraph) {
        this.graph = janusGraph;
        this.g = graph.traversal();
    }

    @Override
    public void dropE(Object id) {
        g.E(id).drop().iterate();
        g.tx().commit();
    }

    @Override
    public void dropV(Object id) {
        g.V(id).drop().iterate();
        g.tx().commit();
    }

    @Override
    public Vertex addV(final Object... keyValues) {
        Vertex v = graph.addVertex(keyValues);
        graph.tx().commit();
        return v;
    }

    @Override
    public Edge addE(String edgeLabel, Object fromVertex, Object toVertex,
            Object... keyValues) {
        Edge e = graph.vertices(fromVertex).next().addEdge(edgeLabel,
                graph.vertices(toVertex).next(), keyValues);
        graph.tx().commit();
        return e;
    }
}

======================== Code to get vertices and edges ======================

JanusGraphFactory.Builder config = JanusGraphFactory.build();
        config.set("storage.backend", "cql");
        config.set("storage.hostname", "10.2.1.134");
        config.set("storage.cql.keyspace", "janusgraph");
        config.set("index.search.backend", "elasticsearch");
        config.set("index.search.hostname", "10.2.1.134");
        // config.set("index.search.elasticsearch.client-only", "true");
        // ip address where cassandra is installed
        // config.set("storage.username", "cassandra");
        // config.set("storage.password", "cassandra");
        // config.set("storage.port", "8182");

        // Get the instance of graph
        JanusGraph graph = config.open();

        graph.vertices().forEachRemaining(x -> {
            System.out.println(x.id());
        });
        System.out.println("------ Edges -------");
        graph.edges().forEachRemaining(x -> {
            System.out.println(x.toString());
        });

Thanks