py2neo操作neo4j

docker run -it -d -p 7474:7474 -p 7687:7687 neo4j:3.4

http://localhost:7474/browser/
neo4j/neo4j

# -*- coding: utf-8 -*-
# @Author: xiaodong
# @Date  : 2020/7/20

import json

from py2neo import NodeMatcher
from py2neo import Graph, Node, Relationship


def load_json(path):
    with open(path, encoding="utf-8") as file:
        data = json.load(file)
    return data

g = Graph("bolt://localhost:7687", password="your-password")
matcher = NodeMatcher(g)

if __name__ == '__main__':
    records = load_json("movies.json")
    
    history = {}
    mapping = {
        "name": "电影名称",
        "to_url": "百度链接",
        "actors": "演员名称",
    }
    for movie, detail in records.items():
        for k, v in detail.items():
            k = mapping.get(k, k)
            if isinstance(v, list):
                v = list(filter(lambda obj: obj.strip(), v))
                history.setdefault(k, set()).update(set(v))
            else:
                if v.strip():
                    history.setdefault(k, set()).add(v)

    tx = g.begin()
    for label, aset in history.items():
        for element in aset:
            node = Node(label, **{"label": element})
            tx.create(node)
    tx.commit()

    tx = g.begin()
    for movie, detail in records.items():
        movie_nodes = matcher.match(**{"label": movie})
        for movie_node in movie_nodes:
            for k, v in detail.items():
                if k == "name":
                    continue
                if isinstance(v, list):
                    for _v in v:
                        nodes = matcher.match(**{"label": _v})
                        for node in nodes:
                            relation = Relationship(movie_node, mapping.get(k, k), node)
                            tx.create(relation)
                else:
                    nodes = matcher.match(**{"label": v})
                    for node in nodes:
                        relation = Relationship(movie_node, mapping.get(k, k), node)
                        tx.create(relation)
    tx.commit()

详情:python操作数据库