Neo4J修改节点被忽略

Question

我正在使用此代码打开数据库：

GraphDatabaseAPI graphdb2 = (GraphDatabaseAPI) new GraphDatabaseFactory().newEmbeddedDatabaseBuilder("D:\\test\\neo4j\\data").setConfig(ShellSettings.remote_shell_enabled, "TRUE").
        setConfig(GraphDatabaseSettings.node_keys_indexable,
        USERNAME_PROPERTY + "," + TITLE_PROPERTY + ","
        + NAME_PROPERTY + "," + LABEL_PROPERTY + "," + TYPE_PROPERTY).
        setConfig(GraphDatabaseSettings.relationship_keys_indexable,
        USERNAME_PROPERTY).
        setConfig(GraphDatabaseSettings.node_auto_indexing, "true").
        setConfig(GraphDatabaseSettings.relationship_auto_indexing,
        "true").
        newGraphDatabase();
ServerConfigurator config;
config = new ServerConfigurator(graphdb2);
config.configuration().setProperty(
        Configurator.WEBSERVER_PORT_PROPERTY_KEY, 1234);
srv = new WrappingNeoServerBootstrapper(graphdb2, config);
srv.start();
graphDb = srv.getServer().getDatabase().getGraph();
registerShutdownHook(graphDb);

但是，当我的应用程序停止运行时，将忽略所有修改。

为什么？