neo4j图数据库安装以及基本操作命令
2018-01-30 10:18
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neo4j图数据安装以及基本操作命令
neo4j安装配置使用,
安装环境:Ubuntu系统
jdk1.8 (neo4j 只支持jdk1.8以上版本)
下载 neo4j
neo4j的下载window可以下载 exe 安装包。
Linux 环境 可以下载NEO4J-SERVER,分为免费的社区版(Community), 收费的企业版(Enterprise)
https://neo4j.com/download/other-releases/#releases
https://neo4j.com/artifact.php?name=neo4j-community-3.3.2-unix.tar.gz
安装neo4j
cd ~/soft/ tar -zxvf neo4j-community-3.3.2-unix.tar.gz cd neo4j-community-3.3.2/
配置环境变量
vi /etc/profile
export NEO4J_HOME=/home/hadoop/soft/neo4j-community-3.3.2 export PATH=$NEO4J_HOME/bin:$PATH
另外,修改配置文件/etc/security/limits.conf ,增加下面配置。
hadoop soft nofile 65535 #警告设定hadoop用户最大打开文件数为65535 hadoop hard nofile 65535 #严格设定hadoop用户最大打开文件数为65535
修改neo4j对外服务IP地址:
vi conf/neo4j.conf
dbms.connectors.default_listen_address=0.0.0.0
Neo4j服务关闭启动
neo4j start ## 启动neo4j neo4j stop ## 关闭neo4j
Neo4j连接地址
通过浏览器访问:
http://192.168.17.50:7474
需要输入密码,默认用户名/密码是:neo4j/neo4j
程序访问URL: bolt://192.168.17.50:7687
重置密码:
删掉 ~\neo4j-community-3.3.2/data/dbms/路径的auth文件后重新设置密码。
命令行操作neo4j:
./cypher-shell
Neo4j 基本操作命令
创建一个graphCREATE (TheMatrix:Movie {title:'The Matrix', released:1999, tagline:'Welcome to the Real World'}) CREATE (Keanu:Person {name:'Keanu Reeves', born:1964}) CREATE (Carrie:Person {name:'Carrie-Anne Moss', born:1967}) CREATE (Laurence:Person {name:'Laurence Fishburne', born:1961}) CREATE (Hugo:Person {name:'Hugo Weaving', born:1960}) CREATE (LillyW:Person {name:'Lilly Wachowski', born:1967}) CREATE (LanaW:Person {name:'Lana Wachowski', born:1965}) CREATE (JoelS:Person {name:'Joel Silver', born:1952}) CREATE (Keanu)-[:ACTED_IN {roles:['Neo']}]->(TheMatrix), (Carrie)-[:ACTED_IN {roles:['Trinity']}]->(TheMatrix), (Laurence)-[:ACTED_IN {roles:['Morpheus']}]->(TheMatrix), (Hugo)-[:ACTED_IN {roles:['Agent Smith']}]->(TheMatrix), (LillyW)-[:DIRECTED]->(TheMatrix), (LanaW)-[:DIRECTED]->(TheMatrix), (JoelS)-[:PRODUCED]->(TheMatrix) CREATE (Emil:Person {name:"Emil Eifrem", born:1978}) CREATE (Emil)-[:ACTED_IN {roles:["Emil"]}]->(TheMatrix) CREATE (TheMatrixReloaded:Movie {title:'The Matrix Reloaded', released:2003, tagline:'Free your mind'}) CREATE (Keanu)-[:ACTED_IN {roles:['Neo']}]->(TheMatrixReloaded), (Carrie)-[:ACTED_IN {roles:['Trinity']}]->(TheMatrixReloaded), (Laurence)-[:ACTED_IN {roles:['Morpheus']}]->(TheMatrixReloaded), (Hugo)-[:ACTED_IN {roles:['Agent Smith']}]->(TheMatrixReloaded), (LillyW)-[:DIRECTED]->(TheMatrixReloaded), (LanaW)-[:DIRECTED]->(TheMatrixReloaded), (JoelS)-[:PRODUCED]->(TheMatrixReloaded) CREATE (TheMatrixRevolutions:Movie {title:'The Matrix Revolutions', released:2003, tagline:'Everything that has a beginning has an end'}) CREATE (Keanu)-[:ACTED_IN {roles:['Neo']}]->(TheMatrixRevolutions), (Carrie)-[:ACTED_IN {roles:['Trinity']}]->(TheMatrixRevolutions), (Laurence)-[:ACTED_IN {roles:['Morpheus']}]->(TheMatrixRevolutions), (Hugo)-[:ACTED_IN {roles:['Agent Smith']}]->(TheMatrixRevolutions), (LillyW)-[:DIRECTED]->(TheMatrixRevolutions), (LanaW)-[:DIRECTED]->(TheMatrixRevolutions), (JoelS)-[:PRODUCED]->(TheMatrixRevolutions) CREATE (TheDevilsAdvocate:Movie {title:"The Devil's Advocate", released:1997, tagline:'Evil has its winning ways'}) CREATE (Charlize:Person {name:'Charlize Theron', born:1975}) CREATE (Al:Person {name:'Al Pacino', born:1940}) CREATE (Taylor:Person {name:'Taylor Hackford', born:1944}) CREATE (Keanu)-[:ACTED_IN {roles:['Kevin Lomax']}]->(TheDevilsAdvocate), (Charlize)-[:ACTED_IN {roles:['Mary Ann Lomax']}]->(TheDevilsAdvocate), (Al)-[:ACTED_IN {roles:['John Milton']}]->(TheDevilsAdvocate), (Taylor)-[:DIRECTED]->(TheDevilsAdvocate) CREATE (AFewGoodMen:Movie {title:"A Few Good Men", released:1992, tagline:"In the heart of the nation's capital, in a courthouse of the U.S. government, one man will stop at nothing to keep his honor, and one will stop at nothing to find the truth."}) CREATE (TomC:Person {name:'Tom Cruise', born:1962}) CREATE (JackN:Person {name:'Jack Nicholson', born:1937}) CREATE (DemiM:Person {name:'Demi Moore', born:1962}) CREATE (KevinB:Person {name:'Kevin Bacon', born:1958}) CREATE (KieferS:Person {name:'Kiefer Sutherland', born:1966}) CREATE (NoahW:Person {name:'Noah Wyle', born:1971}) CREATE (CubaG:Person {name:'Cuba Gooding Jr.', born:1968}) CREATE (KevinP:Person {name:'Kevin Pollak', born:1957}) CREATE (JTW:Person {name:'J.T. Walsh', born:1943}) CREATE (JamesM:Person {name:'James Marshall', born:1967}) CREATE (ChristopherG:Person {name:'Christopher Guest', born:1948}) CREATE (RobR:Person {name:'Rob Reiner', born:1947}) CREATE (AaronS:Person {name:'Aaron Sorkin', born:1961}) CREATE (TomC)-[:ACTED_IN {roles:['Lt. Daniel Kaffee']}]->(AFewGoodMen), (JackN)-[:ACTED_IN {roles:['Col. Nathan R. Jessup']}]->(AFewGoodMen), (DemiM)-[:ACTED_IN {roles:['Lt. Cdr. JoAnne Galloway']}]->(AFewGoodMen), (KevinB)-[:ACTED_IN {roles:['Capt. Jack Ross']}]->(AFewGoodMen), (KieferS)-[:ACTED_IN {roles:['Lt. Jonathan Kendrick']}]->(AFewGoodMen), (NoahW)-[:ACTED_IN {roles:['Cpl. Jeffrey Barnes']}]->(AFewGoodMen), (CubaG)-[:ACTED_IN {roles:['Cpl. Carl Hammaker']}]->(AFewGoodMen), (KevinP)-[:ACTED_IN {roles:['Lt. Sam Weinberg']}]->(AFewGoodMen), (JTW)-[:ACTED_IN {roles:['Lt. Col. Matthew Andrew Markinson']}]->(AFewGoodMen), (JamesM)-[:ACTED_IN {roles:['Pfc. Louden Downey']}]->(AFewGoodMen), (ChristopherG)-[:ACTED_IN {roles:['Dr. Stone']}]->(AFewGoodMen), (AaronS)-[:ACTED_IN {roles:['Man in Bar']}]->(AFewGoodMen), (RobR)-[:DIRECTED]->(AFewGoodMen), (AaronS)-[:WROTE]->(AFewGoodMen) WITH TomH as a MATCH (a)-[:ACTED_IN]->(m)<-[:DIRECTED]-(d) RETURN a,m,d LIMIT 10 ;
查找名字叫 “Tom Hanks” 的演员
MATCH (tom {name: "Tom Hanks"}) RETURN tom
查找 标题包含"Cloud Atlas"的电影 “”Find the movie with title "Cloud Atlas"...
MATCH (cloudAtlas {title: "Cloud Atlas"}) RETURN cloudAtlas
查找10个人的名字
MATCH (people:Person) RETURN people.name LIMIT 10
查找1990年到 2000年上映的电影
MATCH (nineties:Movie) WHERE nineties.released >= 1990 AND nineties.released < 2000 RETURN nineties.title
查找出 "Tom Hanks" 表演的所有电影
MATCH (tom:Person {name: "Tom Hanks"})-[:ACTED_IN]->(tomHanksMovies) RETURN tom,tomHanksMovies
查找出电影 "Cloud Atlas"的导演是谁?
MATCH (cloudAtlas {title: "Cloud Atlas"})<-[:DIRECTED]-(directors) RETURN directors.name
查找出 Tom Hanks 的合作演员
MATCH (tom:Person {name:"Tom Hanks"})-[:ACTED_IN]->(m)<-[:ACTED_IN]-(coActors) RETURN coActors.name
人们怎么和"Cloud Atlas" 产生关系?
MATCH (people:Person)-[relatedTo]-(:Movie {title: "Cloud Atlas"}) RETURN people.name, Type(relatedTo), relatedTo
距离演员"Kevin Bacon" 4度的影片和演员
MATCH (bacon:Person {name:"Kevin Bacon"})-[*1..4]-(hollywood) RETURN DISTINCT hollywood
"Kevin Bacon" 和 "Meg Ryan" 之间的最短路径
MATCH p=shortestPath( (bacon:Person {name:"Kevin Bacon"})-[*]-(meg:Person {name:"Meg Ryan"}) ) RETURN p
找到"Tom Hanks"合作过的演员的 合作演员,从中找出没有和"Tom Hanks"合作过的。
MATCH (tom:Person {name:"Tom Hanks"})-[:ACTED_IN]->(m)<-[:ACTED_IN]-(coActors), (coActors)-[:ACTED_IN]->(m2)<-[:ACTED_IN]-(cocoActors) WHERE NOT (tom)-[:ACTED_IN]->()<-[:ACTED_IN]-(cocoActors) AND tom <> cocoActors RETURN cocoActors.name AS Recommended, count(*) AS Strength ORDER BY Strength DESC
找一个能把 "Tom Hanks" 介绍给 "Tom Cruise" 的人。即把这两个人之间的路径展示出来。
MATCH (tom:Person {name:"Tom Hanks"})-[:ACTED_IN]->(m)<-[:ACTED_IN]-(coActors), (coActors)-[:ACTED_IN]->(m2)<-[:ACTED_IN]-(cruise:Person {name:"Tom Cruise"}) RETURN tom, m, coActors, m2, cruise
删除所有的电影和影人节点,包括他们之间的关系
MATCH (n) DETACH DELETE n
查看图的内容是否已经清空:
MATCH (n) RETURN n
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