我无法连接到本地主机：7474/db/data 来创建 graphDatabaseService

Question

我是neo4j的新手，当我写这段代码时，我得到了以下错误:

>>> from py2neo import neo4j
>>> graph_DB = neo4j.GraphDatabaseService ("http://localhost:7474/db/data")
Traceback (most recent call last):
   File "<pyshell#1>", line 1, in <module>
      graph_DB = neo4j.GraphDatabaseService ("http://localhost:7474/db/data")
   File "C:Python27libsite-packagespy2neoneo4j.py", line 557, in __init__
      rs = self._send(rest.Request(self, "GET", self._uri))
   File "C:Python27libsite-packagespy2neorest.py", line 372, in _send
      raise SocketError(err)
SocketError: error(10061, 'No connection could be made because the target machine actively refused it')

我用的是windows 7。我已经做了几次搜索，发现我必须打开端口7474才能在windows防火墙中使用它，具有高级安全性，但是当我在入站规则中创建新规则时，这对该端口不起作用。同样在ubuntu 10.10中，我不能使用netcat:

打开端口

nc -l 7474

我错在哪里?谢谢你

Answer 1

默认情况下，Neo4J将访问限制为127.0.0.1 (localhost)，但是，您可以更改此选项。在"conf"文件夹中找到"neo4j-server. conf"。然后用记事本打开这个文件。

查找以下内容:

# Let the webserver only listen on the specified IP. Default is localhost (only
# accept local connections). Uncomment to allow any connection. Please see the
# security section in the neo4j manual before modifying this.
# org.neo4j.server.webserver.address=0.0.0.0

取消最后一行的注释(去掉#符号)以允许从EVERYWHERE(0.0.0.0)访问。可选地将IP设置为只允许从您的web服务器访问