PROSAGA码农传奇-titan-通过gremlin将BlogCatalog3数据加载到titan db

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    我的代码是这样的：
  
   <pre>
 <code>
 graph = TinkerGraph.open()

//g = graph.traversal()

println "nodes.csv:"
    /*add nodes.csv to db, each node as int*/
    new File('nodes.csv').eachLine {line ->
        (fromVertex) = line.split(",")
        //println fromVertex
        v1 = graph.addVertex("nodeid", fromVertex.toInteger())
    }

println "edges.csv:"
    graph.createIndex("edges", Vertex.class)
    g = graph.traversal()

getOrCreate = {id ->
        g.V().has("nodeid", id.toInteger()).tryNext().orElseGet{g.addV().property("nodeid", id.toInteger()).next() }
    }

/*traver edges.csv each line, add edge to db*/
new File("edges.csv").eachLine {
    if(!it.startsWith("#")){
    (fromVertex, toVertex) = it.split(",").collect(getOrCreate)
    fromVertex.addEdge("friend", toVertex)
    }
}

println "group-edges.csv:"
new File("group-edges.csv").eachLine { line ->
    (fromVertex, toVertex) = line.split(",")
    v = g.V().has("nodeid", fromVertex.toInteger())
    //println v
    v.property("grpid",toVertex.toInteger())
}

//g.tx().commit()

</code>
 </pre>
  
    edges.csv：
  
   <pre>
 <code>
 1,2
1,3
4,5

</code>
 </pre>
  
    组edges.csv：
  
   <pre>
 <code>
 1,1
2,1
3,1
4,2
5,2

</code>
 </pre>
  
    nodes.csv：
  
   <pre>
 <code>
 1
2
3
4
5

</code>
 </pre>
  
    的
      问题是：当我关闭这个gremlin时，我无法查询保存到titan db的数据。
    </强>
  
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