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61 lines
1.9 KiB
61 lines
1.9 KiB
import json
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from Util.Neo4jExecutor import Neo4jExecutor
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def json_to_cypher(data):
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"""将知识体系JSON转换为Cypher插入脚本"""
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cypher = []
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seen = set()
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def process_node(node, parent_id=None):
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nonlocal seen
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node_id = node['value']
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node_name = node['title'].replace("'", "''")
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# 创建当前节点
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if node_id not in seen:
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cypher.append(f"MERGE (n:KnowledgePoint {{id: '{node_id}'}}) SET n.name = '{node_name}';")
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seen.add(node_id)
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# 创建父子关系
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if parent_id:
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cypher.append(f"""
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MATCH (parent:KnowledgePoint {{id: '{parent_id}'}}),
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(child:KnowledgePoint {{id: '{node_id}'}})
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MERGE (parent)-[:HAS_SUB_POINT]->(child);""")
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# 递归处理子节点
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if 'children' in node and not node['isLeaf']:
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for child in node['children']:
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process_node(child, parent_id=node_id)
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# 处理根节点
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for root in data['data']['tree']:
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process_node(root)
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# 处理根节点的父级关系（如果有）
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if root.get('parentValue'):
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cypher.append(f"MERGE (parent:KnowledgePoint {{id: '{root['parentValue']}'}});")
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cypher.append(f"""
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MATCH (parent:KnowledgePoint {{id: '{root['parentValue']}'}}),
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(child:KnowledgePoint {{id: '{root['value']}'}})
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MERGE (parent)-[:HAS_SUB_POINT]->(child);""")
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return '\n'.join(cypher)
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# 使用示例
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if __name__ == '__main__':
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executor = Neo4jExecutor.create_default()
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# 清库
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executor.graph.run("MATCH (n) DETACH DELETE n")
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# 这里替换成你的JSON数据变量
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with open('小学数学知识点体系.json', 'r',encoding='utf-8') as f:
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your_json_data = json.load(f)
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cypherText=json_to_cypher(your_json_data)
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executor.execute_cypher_text(cypherText)
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print("数据插入成功！")
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