neo4j(1)

2023-04-11

字数统计: 1.4k | 阅读时长≈ 7 分钟

neo4j的安装&使用（一）

[toc]

1.介绍

Neo4j是一个高性能的，基于图形结构的、嵌入式的NoSQL数据库。它是一个完全事务性质的Java持久化引擎，将数据以节点、关系和属性的形式存储在一个网络（图）上，而不是传统的表格结构中。它具有ACID事务特性，并且被描述为具有本地图形存储和处理功能的事务性数据库。Neo4j提供了一套灵活的工具和API，支持多种编程语言和数据格式。此外，Neo4j还提供了一些高级功能，如集群、全文搜索和空间数据处理，适合用于社交网络、推荐引擎、欺诈检测和知识图谱等应用场景。Neo4j还可以通过Cypher查询语言进行访问，并支持使用HTTP端点或二进制协议进行交互。

2.下载&安装

（1）下载

使用主流浏览器Chrome或者firefox等打开https://neo4j.com/ ，这选择上方product标签栏。在download center选择

Graph Database点击，就会得到如下页面。

下载中心图片

此时我们选择点击‘download neo4j desktop’。此时会出现一个’Get Started Now’一个页面，选择填入自己信息可以。

get start now page

截止你就会看见一个界面，记得点击”copy to clipboard“，保存，activation key以备安装时使用。

下载界面

（2）安装

选择默认路径安装(建议使用纯英文路径)，待安装后打开即刻。 desktop-install-activation-mockup-e1580354014180

3.使用

(1)创建数据库

1）create project

2）add local DBMS

3）点击start

选择左侧侧边栏的graph app，选择NEO4j browse可以进行一定的命令行操控

(2)填入数据

在这边我们使用之前创建好的数据，如下：

CREATE
(lebron:PLAYER{name:”Russell Westbrook”, age: 33, number: 0, height: 1.91, weight: 91}),
(russell:PLAYER{name:”LeBron James”, age: 36, number: 6, height: 2.06, weight: 113}),
(anthony:PLAYER{name:”Anthony Davis”, age: 28, number: 23, height: 2.08, weight: 115}),
(ja:PLAYER{name:”Ja Morant”, age: 22, number: 12, height: 1.91, weight: 79}),
(luka:PLAYER{name:”Luka Doncic”, age: 22, number: 77, height: 2.01, weight: 104}),
(kristaps:PLAYER{name:”Kristaps Porzingis”, age: 26, number: 6, height: 2.21, weight: 109}),
(kevin:PLAYER{name:”Kevin Durant”, age: 33, number: 7, height: 2.08, weight: 109}),
(james:PLAYER{name:”James Harden”, age: 32, number: 13, height: 1.96, weight: 100}),
(giannis:PLAYER{name:”Giannis Antetokounmpo”, age: 26, number: 34, height: 2.11, weight: 110}),
(khris:PLAYER{name:”Khris Middleton”, age: 30, number: 22, height: 2.01, weight: 100}),
(joel:PLAYER{name:”Joel Embiid”, age: 27, number: 21, height: 2.13, weight: 127}),
(tobias:PLAYER{name:”Tobias Harris”, age: 29, number: 22, height: 2.03, weight: 100}),

(frank:COACH{name: “Frank Vogel”}),
(taylor:COACH{name: “Taylor Jenkins”}),
(jason:COACH{name: “Jason Kidd”}),
(steve:COACH{name: “Steve Nash”}),
(mike:COACH{name: “Mike Budenholzer”}),
(doc:COACH{name: “Doc Rivers”}),
(stan:COACH{name: “Stan Van Gundy”}),

(lakers:TEAM{name:”LA Lakers”}),
(memphis:TEAM{name:”Memphis Grizzlies”}),
(mavericks:TEAM{name:”Dallas Mavericks”}),
(nets:TEAM{name:”Brooklyn Nets”}),
(bucks:TEAM{name:”Milwaukee Bucks”}),
(sixers:TEAM{name:”Philadelphia 76ers”}),

(lebron)-[:TEAMMATES]-> (russell),
(lebron)<-[:TEAMMATES]- (russell),
(lebron)-[:TEAMMATES]-> (anthony),
(lebron)<-[:TEAMMATES]- (anthony),
(russell)-[:TEAMMATES]-> (anthony),
(russell)<-[:TEAMMATES]- (anthony),
(luka)-[:TEAMMATES]-> (kristaps),
(luka)<-[:TEAMMATES]- (kristaps),
(kevin)-[:TEAMMATES]-> (james),
(kevin)<-[:TEAMMATES]- (james),
(giannis)-[:TEAMMATES]-> (khris),
(giannis)<-[:TEAMMATES]- (khris),
(joel)-[:TEAMMATES]-> (tobias),
(joel)<-[:TEAMMATES]- (tobias),

(frank)-[:COACHES]->(lebron),
(frank)-[:COACHES]->(anthony),
(frank)-[:COACHES]->(russell),
(taylor)-[:COACHES]->(ja),
(jason)-[:COACHES]->(luka),
(jason)-[:COACHES]->(kristaps),
(steve)-[:COACHES]->(kevin),
(steve)-[:COACHES]->(james),
(mike)-[:COACHES]->(giannis),
(mike)-[:COACHES]->(khris),
(doc)-[:COACHES]->(tobias),
(doc)-[:COACHES]->(joel),

(lebron)-[:PLAYS_FOR {salary: 40000000}]-> (lakers),
(russell)-[:PLAYS_FOR {salary: 33000000}]-> (lakers),
(anthony)-[:PLAYS_FOR {salary: 38000000}]-> (lakers),
(ja)-[:PLAYS_FOR {salary: 8000000}]-> (memphis),
(luka)-[:PLAYS_FOR {salary: 50000000}]-> (mavericks),
(kristaps)-[:PLAYS_FOR {salary: 26000000}]-> (mavericks),
(kevin)-[:PLAYS_FOR {salary: 45000000}]-> (nets),
(james)-[:PLAYS_FOR{salary: 4200000}]-> (nets),
(giannis)-[:PLAYS_FOR {salary: 47000000}]-> (bucks),
(khris)-[:PLAYS_FOR {salary: 43000000}]-> (bucks),
(joel)-[:PLAYS_FOR {salary: 4000000}]-> (sixers),
(tobias)-[:PLAYS_FOR {salary: 4000000}]-> (sixers),

(frank)-[:COACHES_FOR]->(lakers),
(taylor)-[:COACHES_FOR]->(memphis),
(jason)-[:COACHES_FOR]->(mavericks),
(steve)-[:COACHES_FOR]->(nets),
(mike)-[:COACHES_FOR]->(bucks),
(doc)-[:COACHES_FOR]->(sixers),


(lebron)-[:PLAYED_AGAINST {minutes: 38, points: 32, assists: 6, rebounds: 6, turnovers: 2}]-> (memphis),
(russell)-[:PLAYED_AGAINST {minutes: 29, points: 16, assists: 12, rebounds: 11, turnovers: 16}]-> (memphis),
(anthony)-[:PLAYED_AGAINST {minutes: 36, points: 27, assists: 2, rebounds: 8, turnovers: 1}]-> (memphis),
(ja)-[:PLAYED_AGAINST {minutes: 43, points: 42, assists: 7, rebounds: 8, turnovers: 4}]-> (lakers),

(lebron)-[:PLAYED_AGAINST {minutes: 23, points: 25, assists: 12, rebounds: 3, turnovers: 0}]-> (memphis),
(russell)-[:PLAYED_AGAINST {minutes: 20, points: 11, assists: 10, rebounds: 3, turnovers: 8}]-> (memphis),
(anthony)-[:PLAYED_AGAINST {minutes: 30, points: 22, assists: 2, rebounds: 8, turnovers: 1}]-> (memphis),
(ja)-[:PLAYED_AGAINST {minutes: 35, points: 35, assists: 3, rebounds: 4, turnovers: 2}]-> (lakers),

(lebron)-[:PLAYED_AGAINST {minutes: 32, points: 18, assists: 3, rebounds: 6, turnovers: 1}]-> (nets),
(russell)-[:PLAYED_AGAINST {minutes: 26, points: 26, assists: 11, rebounds: 13, turnovers: 6}]-> (nets),
(anthony)-[:PLAYED_AGAINST {minutes: 30, points: 26, assists: 7, rebounds: 18, turnovers: 3}]-> (nets),
(kevin)-[:PLAYED_AGAINST {minutes: 43, points: 45, assists: 5, rebounds: 8, turnovers: 2}]-> (lakers),
(james)-[:PLAYED_AGAINST {minutes: 46, points: 35, assists: 13, rebounds: 4, turnovers: 7}]-> (lakers),

(kevin)-[:PLAYED_AGAINST {minutes: 34, points: 37, assists: 2, rebounds: 12, turnovers: 1}]-> (memphis),
(james)-[:PLAYED_AGAINST {minutes: 46, points: 35, assists: 13, rebounds: 4, turnovers: 7}]-> (memphis),
(ja)-[:PLAYED_AGAINST {minutes: 26, points: 32, assists: 13, rebounds: 6, turnovers: 2}]-> (nets),


(luka)-[:PLAYED_AGAINST {minutes: 44, points: 23, assists: 7, rebounds: 13, turnovers: 8}]-> (bucks),
(kristaps)-[:PLAYED_AGAINST {minutes: 24, points: 16, assists: 2, rebounds: 12, turnovers: 0}]-> (bucks),
(giannis)-[:PLAYED_AGAINST {minutes: 33, points: 26, assists: 16, rebounds: 18, turnovers: 5}]-> (mavericks),
(khris)-[:PLAYED_AGAINST {minutes: 46, points: 35, assists: 3, rebounds: 4, turnovers: 3}]-> (mavericks),

(luka)-[:PLAYED_AGAINST {minutes: 33, points: 28, assists: 6, rebounds: 3, turnovers: 3}]-> (sixers),
(kristaps)-[:PLAYED_AGAINST {minutes: 24, points: 18, assists: 4, rebounds: 11, turnovers: 1}]-> (sixers),
(joel)-[:PLAYED_AGAINST {minutes: 25, points: 29, assists: 7, rebounds: 22, turnovers: 2}]-> (mavericks),
(tobias)-[:PLAYED_AGAINST {minutes: 34, points: 18, assists: 13, rebounds: 4, turnovers: 0}]-> (mavericks),

(giannis)-[:PLAYED_AGAINST {minutes: 45, points: 36, assists: 5, rebounds: 12, turnovers: 3}]-> (sixers),
(khris)-[:PLAYED_AGAINST {minutes: 35, points: 22, assists: 5, rebounds: 6, turnovers: 0}]-> (sixers),
(joel)-[:PLAYED_AGAINST {minutes: 33, points: 23, assists: 3, rebounds: 10, turnovers: 3}]-> (bucks),
(tobias)-[:PLAYED_AGAINST {minutes: 38, points: 23, assists: 4, rebounds: 5, turnovers: 1}]-> (bucks),

(kevin)-[:PLAYED_AGAINST {minutes: 29, points: 28, assists: 6, rebounds: 8, turnovers: 0}]-> (mavericks),
(james)-[:PLAYED_AGAINST {minutes: 35, points: 17, assists: 10, rebounds: 8, turnovers: 5}]-> (mavericks),
(luka)-[:PLAYED_AGAINST {minutes: 37, points: 35, assists: 6, rebounds: 11, turnovers: 4}]-> (nets),
(kristaps)-[:PLAYED_AGAINST {minutes: 34, points: 27, assists: 4, rebounds: 8, turnovers: 0}]-> (nets),

(lebron)-[:PLAYED_AGAINST {minutes: 32, points: 27, assists: 12, rebounds: 10, turnovers: 4}]-> (sixers),
(russell)-[:PLAYED_AGAINST {minutes: 25, points: 19, assists: 9, rebounds: 14, turnovers: 5}]-> (sixers),
(anthony)-[:PLAYED_AGAINST {minutes: 32, points: 22, assists: 7, rebounds: 12, turnovers: 2}]-> (sixers),
(joel)-[:PLAYED_AGAINST {minutes: 36, points: 36, assists: 7, rebounds: 12, turnovers: 0}]-> (lakers),
(tobias)-[:PLAYED_AGAINST {minutes: 32, points: 22, assists: 1, rebounds: 7, turnovers: 0}]-> (lakers);

点击执行，可得到一个简单的neo4j数据库。

(3)展示数据库

输入一行代码，即可看见图数据库。

match (n) return (n)

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