源代码如下 报错信息: 从graph.run这里报错,报出一个JSon相关的错误,百思不得其解。

Traceback (most recent call last):

File "D:\software\Python\Python37\lib\site-packages\py2neo\client\http.py", line 443, in from_json

content = json_loads(data, object_hook=JSONHydrant.json_to_packstream)

File "D:\software\Python\Python37\lib\json\__init__.py", line 361, in loads

return cls(**kw).decode(s)

File "D:\software\Python\Python37\lib\json\decoder.py", line 337, in decode

obj, end = self.raw_decode(s, idx=_w(s, 0).end())

File "D:\software\Python\Python37\lib\json\decoder.py", line 355, in raw_decode

raise JSONDecodeError("Expecting value", s, err.value) from None

json.decoder.JSONDecodeError: Expecting value: line 1 column 1 (char 0)

解决方法: 需要加上一个name=“neo4j”,才能成功,如下

graph = Graph("http://localhost:7474",user= "neo4j",password = "zhang123",name="neo4j")

或者这样

graph = Graph("http://localhost:7474",auth=("neo4j","zhang123"),name="neo4j")

完整demo

from py2neo import Graph

#连接图数据库

graph = Graph("http://localhost:7474",user= "neo4j",password = "zhang123",name="neo4j")

cypher = "create (n:person {name : '老大',age : 18,length : 168})"

graph.run(cypher)

好文推荐

评论可见,请评论后查看内容,谢谢!!!
 您阅读本篇文章共花了: