Py2neo 搜索错误

Question

我还在尝试用py2neo+flask+neo4j做一个社交网络。

我在使用 py2neo.I 搜索我的数据库时遇到问题想找到所有用户名包含特殊 string.For 示例的所有用户其用户名包含 "dav" .我写了下面的代码，但我不知道为什么会出现这个错误...

from py2neo import Graph
graph=Graph("http://neo4j:123@localhost:7474/ ")
def search(name):
   users=graph.merge("Person")
   for N in users:
       print N['username']

这是我的错误：

Traceback (most recent call last): File "", line 1, in
File "/home/ali/Desktop/flask/search.py", line 10, in search users=graph.cypher.execute('match (p:Person) return p' File "/usr/local/lib/python2.7/dist-packages/py2neo/core.py", line 659, in cypher metadata = self.resource.metadata
File "/usr/local/lib/python2.7/dist-packages/py2neo/core.py", line 213, in metadata self.get() File "/usr/local/lib/python2.7/dist-packages/py2neo/core.py", line 267, in get raise_from(self.error_class(message, **content), error)
File "/usr/local/lib/python2.7/dist-packages/py2neo/util.py", line 235, in raise_from raise exception py2neo.error.GraphError: HTTP GET returned response 404

Answer 1

你的URL不对，你应该改成这样：

Graph("http://neo4j:123@localhost:7474/db/data")

此外，您不能通过 merge 函数执行 cypher，您应该这样做：

users = graph.cypher.execute('match (p:Person) return p')

Py2neo 搜索错误

Py2neo searching error

neo4j

flask

py2neo