Neo4j导入CSV文件使用import

找到neo4j的安装路径，并在D:\neo4j\import放入csv文件，如果目录下没有则创建import目录
完整路径如下D:\neo4j\import
因为neo4j支持导入csv文件，其默认目录入口是 ...\import
 
 
//导入节点 电影类型  == 注意类型转换
LOAD CSV WITH HEADERS  FROM "file:///genre.csv" AS line
MERGE (p:Genre{gid:toInteger(line.gid),name:line.gname})
	
 
//导入节点 演员信息	
LOAD CSV WITH HEADERS FROM 'file:///person.csv' AS line
MERGE (p:Person { pid:toInteger(line.pid),birth:line.birth,
death:line.death,name:line.name,
biography:line.biography,
birthplace:line.birthplace})
 
 
// 导入节点 电影信息
LOAD CSV WITH HEADERS  FROM "file:///movie.csv" AS line  
MERGE (p:Movie{mid:toInteger(line.mid),title:line.title,introduction:line.introduction,
rating:toFloat(line.rating),releasedate:line.releasedate})
 
 
// 导入关系 actedin  电影是谁参演的 1对多
LOAD CSV WITH HEADERS FROM "file:///person_to_movie.csv" AS line 
match (from:Person{pid:toInteger(line.pid)}),(to:Movie{mid:toInteger(line.mid)})  
merge (from)-[r:actedin{pid:toInteger(line.pid),mid:toInteger(line.mid)}]->(to)
	
//导入关系  电影是什么类型 == 1对多
LOAD CSV WITH HEADERS FROM "file:///movie_to_genre.csv" AS line
match (from:Movie{mid:toInteger(line.mid)}),(to:Genre{gid:toInteger(line.gid)})  
merge (from)-[r:is{mid:toInteger(line.mid),gid:toInteger(line.gid)}]->(to)
 
 
-- 问：章子怡都演了哪些电影？
match(n:Person)-[:actedin]->(m:Movie) where n.name='章子怡' return m.title
 
--  删除所有的节点及关系
MATCH (n)-[r]-(b)
DELETE n,r,b