Question

我想使用python脚本将一些数据放到Neo4j数据库中。我认为bulbflow可以很容易地做到这一点。

我在他们的主页和文档中有这个小脚本。

#!/usr/bin/python
from bulbs.neo4jserver import Graph
g = Graph()
james = g.vertices.create(name="James")

但是当我运行它时，我收到了这个错误：

Traceback (most recent call last):
  File "./bulb.py", line 4, in <module>
    james = g.vertices.create(name="James")
  File "/usr/lib/python2.7/site-packages/bulbs/element.py", line 565, in create
    resp = self.client.create_vertex(data, keys=_keys)
  File "/usr/lib/python2.7/site-packages/bulbs/neo4jserver/client.py", line 424, in create_vertex
    return self.create_indexed_vertex(data, index_name, keys=keys)
  File "/usr/lib/python2.7/site-packages/bulbs/neo4jserver/client.py", line 1054, in create_indexed_vertex
    return self.gremlin(script,params)
  File "/usr/lib/python2.7/site-packages/bulbs/neo4jserver/client.py", line 384, in gremlin
    return self.request.post(path, params)
  File "/usr/lib/python2.7/site-packages/bulbs/rest.py", line 131, in post
    return self.request(POST, path, params)
  File "/usr/lib/python2.7/site-packages/bulbs/rest.py", line 186, in request
    return self.response_class(http_resp, self.config)
  File "/usr/lib/python2.7/site-packages/bulbs/neo4jserver/client.py", line 217, in __init__
    self.handle_response(response)
  File "/usr/lib/python2.7/site-packages/bulbs/neo4jserver/client.py", line 249, in handle_response
    response_handler(response)
  File "/usr/lib/python2.7/site-packages/bulbs/rest.py", line 39, in not_found
    raise LookupError(http_resp)
LookupError: ({'status': '404', 'access-control-allow-origin': '*', 'content-type': 'application/json; charset=UTF-8', 'content-length': '833', 'server': 'Jetty(9.0.5.v20130815)'}, '{\n  "message" : "No such ServerPlugin: \\"GremlinPlugin\\"",\n  "exception" : "PluginLookupException",\n  "fullname" : "org.neo4j.server.plugins.PluginLookupException",\n  "stacktrace" : [ "org.neo4j.server.plugins.PluginManager.extension(PluginManager.java:124)", "org.neo4j.server.plugins.PluginManager.invoke(PluginManager.java:165)", "org.neo4j.server.rest.web.ExtensionService.invokeGraphDatabaseExtension(ExtensionService.java:312)", "org.neo4j.server.rest.web.ExtensionService.invokeGraphDatabaseExtension(ExtensionService.java:134)", "java.lang.reflect.Method.invoke(Unknown Source)", "org.neo4j.server.rest.transactional.TransactionalRequestDispatcher.dispatch(TransactionalRequestDispatcher.java:139)", "org.neo4j.server.rest.security.SecurityFilter.doFilter(SecurityFilter.java:112)", "java.lang.Thread.run(Unknown Source)" ]\n}')

根据{{3}}正确安装了

bulbflow和Neo4j。 Neo4j正在使用默认配置运行，我可以打开http://localhost:7474/。

你可以帮我解决这个问题吗？

谢谢你，FrostyX

Answer 1

从Neo4j 2.0开始，不再捆绑gremlin插件。但是，您可以轻松地自行构建和安装它，请参阅https://github.com/neo4j-contrib/gremlin-plugin。

Answer 2

是的，正如@stefan所说，从Neo4j 2开始，你必须在Neo4j服务器上手动安装Gremlin插件。但是，您可以将Neo4j与TinkerPop Rexster服务器一起使用 - Rexster安装了最新的Gremlin，而Bulbs可与任一服务器配合使用。

请参阅...

Rexster Wiki：https://github.com/tinkerpop/rexster/wiki
Rexster下载：https://github.com/tinkerpop/rexster/releases
灯泡文档：http://bulbflow.com/api/bulbs/#id3
TinkerPop概述：http://www.tinkerpopbook.com/

没有这样的ServerPlugin：GremlinPlugin

2 个答案: