Migrate data from Mysql to neo4j database

Preface ： I have read several other people's tutorials, and there are some mistakes , Record the method of ultimate success .
Reference tutorial ：
transfer MySQL Data to Neo4j
neo4j install APOC plug-in unit

Method ：

One ： Download required jar package

apoc Download address
mysql-connector-java Download address
Put it in the directory below , Be careful ： my Neo4j The version is 3.5.26, Corresponding apoc The version is also 3.5.*, Downloaded the version in the reference tutorial , When the service is started , Service failed to start .

Two 、 Modify the configuration file

① modify

# Whether requests to Neo4j are authenticated.
# To disable authentication, uncomment this line
#https://www.cnblogs.com/jpfss/p/11365342.html
dbms.security.auth_enabled=true

② add to

# Wen Chu 
dbms.security.procedures.unrestricted=apoc.*
apoc.import.file.enabled=true
# At the end of the article 
dbms.memory.pagecache.size=10g
dbms.memory.heap.initial_size=1g
dbms.memory.heap.max_size=4g

3、 ... and 、 Restart the service

cmd The command line enters the following path to execute ：

neo4j restart

Four 、 see apoc Whether the installation was successfully opened

open http://localhost:7474/

return apoc.version()

The appearance of the version number indicates that the plug-in has been successfully installed ！

5、 ... and 、 Migrating data

（ Optional ： Empty neo4j Database data ）
There are two tables in my database , One stores node information , A storage side （ Relationship ） Information about .

5.1 Migrate nodes

Node table ：

stay Neo4j Statement executed in ：

CALL apoc.load.jdbc('jdbc:mysql://localhost:3306/ Database name ?user=root&password=root&useUnicode=true&characterEncoding=utf8&serverTimezone=UTC', 'SELECT * FROM `node Table name `') YIELD row CREATE (n:Node {id: row.id, name: row.name, classname: row.classname})

Node Represents the node name （ type ）, Can be for other , Such as Person etc. .
attribute ：{id: row.id, name: row.name, classname: row.classname}

5.2 Migration relationship

A relational table ：

CALL apoc.load.jdbc('jdbc:mysql://localhost:3306/ Database name ?user=root&password=root&useUnicode=true&characterEncoding=utf8&serverTimezone=UTC', 'SELECT * FROM `link Table name `') YIELD row match (n:Node {id: row.from_node_id}),(m:Node{id:row.to_node_id}) create (n)-[r:from_to{id:row.id,classname:row.classname,kind:row.kind,from_node_id:row.from_node_id,to_node_id:row.to_node_id}]->(m)

Be accomplished ！