试图用py2neo（2.0.9）创建一个python程序，该程序创建一个Neo4j图，但服务器拒绝让我连接到i

Question

我的代码/手册的代码

from py2neo import Graph, Node

graph = Graph()

alice = Node("Person",name="Alice")

graph.create(alice)

错误是

Traceback (most recent call last): File "/Users/ben/Documents/CompSci/env/lib/python3.7/site-packages/py2neo/packages/httpstream/http.py", line 322, in submit response = send() File "/Users/ben/Documents/CompSci/env/lib/python3.7/site-packages/py2neo/packages/httpstream/http.py", line 317, in send http.request(xstr(method), xstr(uri.absolute_path_reference), body, headers) File "/Applications/Xcode.app/Contents/Developer/Library/Frameworks/Python3.framework/Versions/3.7/lib/python3.7/http/client.py", line 1229, in request self._send_request(method, url, body, headers, encode_chunked) File "/Applications/Xcode.app/Contents/Developer/Library/Frameworks/Python3.framework/Versions/3.7/lib/python3.7/http/client.py", line 1275, in _send_request self.endheaders(body, encode_chunked=encode_chunked) File "/Applications/Xcode.app/Contents/Developer/Library/Frameworks/Python3.framework/Versions/3.7/lib/python3.7/http/client.py", line 1224, in endheaders self._send_output(message_body, encode_chunked=encode_chunked) File "/Applications/Xcode.app/Contents/Developer/Library/Frameworks/Python3.framework/Versions/3.7/lib/python3.7/http/client.py", line 1016, in _send_output self.send(msg) File "/Applications/Xcode.app/Contents/Developer/Library/Frameworks/Python3.framework/Versions/3.7/lib/python3.7/http/client.py", line 956, in send self.connect() File "/Users/ben/Documents/CompSci/env/lib/python3.7/site-packages/py2neo/packages/httpstream/http.py", line 80, in connect self.source_address) File "/Applications/Xcode.app/Contents/Developer/Library/Frameworks/Python3.framework/Versions/3.7/lib/python3.7/socket.py", line 727, in create_connection raise err File "/Applications/Xcode.app/Contents/Developer/Library/Frameworks/Python3.framework/Versions/3.7/lib/python3.7/socket.py", line 716, in create_connection sock.connect(sa) ConnectionRefusedError: [Errno 61] Connection refused

During handling of the above exception, another exception occurred:

Traceback (most recent call last): File "ex.py", line 4, in graph.create(alice) File "/Users/ben/Documents/CompSci/env/lib/python3.7/site-packages/py2neo/core.py", line 706, in create statement = CreateStatement(self) File "/Users/ben/Documents/CompSci/env/lib/python3.7/site-packages/py2neo/cypher/create.py", line 44, in init self.supports_node_labels = self.graph.supports_node_labels File "/Users/ben/Documents/CompSci/env/lib/python3.7/site-packages/py2neo/core.py", line 1080, in supports_node_labels return self.neo4j_version >= (2, 0) File "/Users/ben/Documents/CompSci/env/lib/python3.7/site-packages/py2neo/core.py", line 958, in neo4j_version return version_tuple(self.resource.metadata["neo4j_version"]) File "/Users/ben/Documents/CompSci/env/lib/python3.7/site-packages/py2neo/core.py", line 213, in metadata self.get() File "/Users/ben/Documents/CompSci/env/lib/python3.7/site-packages/py2neo/core.py", line 258, in get response = self.__base.get(headers=headers, redirect_limit=redirect_limit, **kwargs) File "/Users/ben/Documents/CompSci/env/lib/python3.7/site-packages/py2neo/packages/httpstream/http.py", line 966, in get return self.__get_or_head("GET", if_modified_since, headers, redirect_limit, **kwargs) File "/Users/ben/Documents/CompSci/env/lib/python3.7/site-packages/py2neo/packages/httpstream/http.py", line 943, in __get_or_head return rq.submit(redirect_limit=redirect_limit, **kwargs) File "/Users/ben/Documents/CompSci/env/lib/python3.7/site-packages/py2neo/packages/httpstream/http.py", line 433, in submit http, rs = submit(self.method, uri, self.body, self.headers) File "/Users/ben/Documents/CompSci/env/lib/python3.7/site-packages/py2neo/packages/httpstream/http.py", line 362, in submit raise SocketError(code, description, host_port=uri.host_port) py2neo.packages.httpstream.http.SocketError: Connection refused

Answer 1

myserver-运行neo4j的本地主机或服务器

auth=（“用户名”、“密码”）

from py2neo import Graph, Node
graph = Graph("bolt://<myserver>:7687", auth=("neo4j", "psswrd"))
tx = graph.begin()
alice = Node("Person", name="Alice")
tx.create(alice)
tx.commit()