https://neo4j.com/docs/
#https://pypi.python.org/pypi/neo4j-driver/1.5.3
from neo4j.v1 import GraphDatabase
driver = GraphDatabase.driver("bolt://localhost:7687", auth=("my@my.com","mypwd"))
def add_friends(tx, name, friend_name):
tx.run("MERGE (a:Person {name: $name}) "
"MERGE (a)-[:KNOWS]->(friend:Person {name: $friend_name})",
name=name, friend_name=friend_name)
def print_friends(tx, name):
for record in tx.run("MATCH (a:Person)-[:KNOWS]->(friend) WHERE a.name = $name "
"RETURN friend.name ORDER BY friend.name", name=name):
print(record["friend.name"])
with driver.session() as session:
session.write_transaction(add_friends, "Arthur", "Guinevere")
session.write_transaction(add_friends, "Arthur", "Lancelot")
session.write_transaction(add_friends, "Arthur", "Merlin")
session.write_transaction(add_friends, "Arthur", "MyinputF")
session.read_transaction(print_friends, "Arthur")
| Server version | Neo4j/3.3.1 |
| Server address | 127.0.0.1:7687 |
| Query | MATCH (a:Person)-[:KNOWS]->(friend) WHERE a.name ="Arthur" RETURN friend.name ORDER BY friend.name |
| Response |
[
{
"keys": [
"friend.name"
],
"length": 1,
"_fields": [
"Guinevere"
],
"_fieldLookup": {
"friend.name": 0
}
},
{
"keys": [
"friend.name"
],
"length": 1,
"_fields": [
"Lancelot"
],
"_fieldLookup": {
"friend.name": 0
}
},
{
"keys": [
"friend.name"
],
"length": 1,
"_fields": [
"Merlin"
],
"_fieldLookup": {
"friend.name": 0
}
},
{
"keys": [
"friend.name"
],
"length": 1,
"_fields": [
"Myinput"
],
"_fieldLookup": {
"friend.name": 0
}
},
{
"keys": [
"friend.name"
],
"length": 1,
"_fields": [
"MyinputF"
],
"_fieldLookup": {
"friend.name": 0
}
}
]
|
删除
Deleted 5687 nodes, deleted 4885 relationships, completed after 453 ms.