python - neo4j 桌面是否包含可用的 neo4j 数据库
问题描述
我已经安装了 neo4j 桌面,并且可以从中使用 neo4j 数据库。问题是当我尝试从 Django 项目连接到 neo4j 数据库时。
我已经配置了settings.py
with config.DATABASE_URL = 'bolt://neo4j:neo4j@localhost:7687'
,但是当我运行时neomodel_install-labels
,我得到了这个错误:
Connecting to bolt://neo4j:neo4j@localhost:7687
Traceback (most recent call last):
File "/Users/hugovillalobos/Documents/Code/AttractoraProject/AttractoraVenv/lib/python3.6/site-packages/neo4j/bolt/connection.py",
line 578, in _connect
s.connect(resolved_address)
ConnectionRefusedError: [Errno 61] Connection refused
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/Users/hugovillalobos/Documents/Code/AttractoraProject/AttractoraVenv/bin/neomodel_install_labels", line 67, in <module>
main()
File "/Users/hugovillalobos/Documents/Code/AttractoraProject/AttractoraVenv/bin/neomodel_install_labels", line 62, in main
db.set_connection(bolt_url)
File "/Users/hugovillalobos/Documents/Code/AttractoraProject/AttractoraVenv/lib/python3.6/site-packages/neomodel/util.py", line 65,
in set_connection
max_pool_size=config.MAX_POOL_SIZE)
File "/Users/hugovillalobos/Documents/Code/AttractoraProject/AttractoraVenv/lib/python3.6/site-packages/neo4j/v1/api.py", line 94,
in driver
return Driver(uri, **config)
File "/Users/hugovillalobos/Documents/Code/AttractoraProject/AttractoraVenv/lib/python3.6/site-packages/neo4j/v1/api.py", line 133,
in __new__
return subclass(uri, **config)
File "/Users/hugovillalobos/Documents/Code/AttractoraProject/AttractoraVenv/lib/python3.6/site-packages/neo4j/v1/direct.py", line 7
3, in __new__
pool.release(pool.acquire())
File "/Users/hugovillalobos/Documents/Code/AttractoraProject/AttractoraVenv/lib/python3.6/site-packages/neo4j/v1/direct.py", line 4
4, in acquire
return self.acquire_direct(self.address)
File "/Users/hugovillalobos/Documents/Code/AttractoraProject/AttractoraVenv/lib/python3.6/site-packages/neo4j/bolt/connection.py",
line 453, in acquire_direct
connection = self.connector(address, self.connection_error_handler)
File "/Users/hugovillalobos/Documents/Code/AttractoraProject/AttractoraVenv/lib/python3.6/site-packages/neo4j/v1/direct.py", line 7
0, in connector
return connect(address, security_plan.ssl_context, error_handler, **config)
File "/Users/hugovillalobos/Documents/Code/AttractoraProject/AttractoraVenv/lib/python3.6/site-packages/neo4j/bolt/connection.py",
line 707, in connect
raise last_error
File "/Users/hugovillalobos/Documents/Code/AttractoraProject/AttractoraVenv/lib/python3.6/site-packages/neo4j/bolt/connection.py",
line 697, in connect
s = _connect(resolved_address, **config)
File "/Users/hugovillalobos/Documents/Code/AttractoraProject/AttractoraVenv/lib/python3.6/site-packages/neo4j/bolt/connection.py",
line 587, in _connect
raise ServiceUnavailable("Failed to establish connection to {!r} (reason {})".format(resolved_address, error.errno))
neo4j.exceptions.ServiceUnavailable: Failed to establish connection to ('::1', 7687, 0, 0) (reason 61)
我知道数据库正在运行,因为我可以从neo4j desktop连接,并且我已经安装了neo4j-driver和neomodel。我不知道我错过了什么。
解决方案
好的,我不知道这是否适用于任何情况,我也不知道它的原因,但我发现这是密码中的空格字符的问题。我用感叹号设置了密码,当我尝试连接时,它失败了。我在 Neo4j 中更改了用户的密码,删除了感叹号和 Bingo!我有联系。谁能告诉我为什么会这样?
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