Neo4j图数据库

Neo4j-5.26.3社区版

社区版只能部署单节点,企业版才可部署集群！

二进制部署单节点

配置JAVA环境，本次使用5.26.3版本需要jdk17版本，上传jdk17到服务器

[root@test-200 ~]# tar xf jdk-17_linux-x64_bin.tar.gz -C /usr/local/

# 编辑环境变量文件
[root@test-200 ~]# vi /etc/profile
# 在 /etc/profile 新增两行
export JAVA_HOME=/usr/local/jdk-17.0.6
export PATH=$JAVA_HOME/bin:$PATH

# 更新环境变量
[root@test-200 ~]# source  /etc/profile
[root@test-200 ~]# java -version 
java version "17.0.6" 2023-01-17 LTS
Java(TM) SE Runtime Environment (build 17.0.6+9-LTS-190)
Java HotSpot(TM) 64-Bit Server VM (build 17.0.6+9-LTS-190, mixed mode, sharing)

通过官网链接下载neo4j的压缩包

https://go.neo4j.com/download-thanks.html?edition=community&release=5.26.3&flavour=unix&_gl=1*6tsup1*_ga*MTIzOTcyMjkwNi4xNzQwNjQ2MDYy*_ga_DZP8Z65KK4*MTc0MTA2OTMzNC42LjEuMTc0MTA3MTQyMS4wLjAuMA..*_gcl_au*MjI3OTQ5NzA1LjE3NDA2NDYwNjIuNDg3MTgyOTMzLjE3NDA5NjM3NTkuMTc0MDk2Mzc1OQ..*_ga_DL38Q8KGQC*MTc0MTA2OTMzNC42LjEuMTc0MTA3MTQyMy4wLjAuMA..

上传到服务器中，并解压

[root@test-200 ~]# tar xf neo4j-community-5.26.3-unix.tar.gz  -C /home/

[root@test-200 ~]# cd /home/neo4j-community-5.26.3/conf/

[root@test-200 conf]# vi neo4j.conf 

# 解开下行注释，让所有ip可以访问
server.default_listen_address=0.0.0.0
# 设置初始堆内存和最大堆内存均为4GB（根据实际需求调整单位）
server.memory.heap.max_size=4G
server.memory.heap.max_size=4G

启动程序

[root@test-200 ~]# /home/neo4j-community-5.26.3/bin/neo4j start
Directories in use:
home:         /home/neo4j-community-5.26.3
config:       /home/neo4j-community-5.26.3/conf
logs:         /home/neo4j-community-5.26.3/logs
plugins:      /home/neo4j-community-5.26.3/plugins
import:       /home/neo4j-community-5.26.3/import
data:         /home/neo4j-community-5.26.3/data
certificates: /home/neo4j-community-5.26.3/certificates
licenses:     /home/neo4j-community-5.26.3/licenses
run:          /home/neo4j-community-5.26.3/run
Starting Neo4j.
Started neo4j (pid:4091). It is available at http://0.0.0.0:7474
There may be a short delay until the server is ready.

# neo4j 命令
Commands:
  version  Print version information and exit.	# neo4j版本信息
  help     Display help information about the specified command.	# 帮助
  console  Start server in console.	# 调试模式运行neo4j
  restart  Restart the server daemon.	# 重启neo4j
  start    Start server as a daemon.	# 启动neo4j
  status   Get the status of the neo4j server process.	# neo4j当前状态
  stop     Stop the server daemon. # 关闭neo4j

访问192.168.116.200:7474
默认账号密码  neo4j/neo4j
登录成功会提示让你重新修改密码最低8位字符

# 查询所有数据库
SHOW DATABASES;

# 停止图数据库
[root@test-200 ~]# /home/neo4j-community-5.26.3/bin/neo4j stop 
Stopping Neo4j....... stopped.

Docker方式部署单节点

# 拉取镜像
[root@test-200 ~]# docker pull neo4j:5.26.3-community 

# 如果无法下载使用下面命令


[root@test-200 ~]# docker pull swr.cn-north-4.myhuaweicloud.com/ddn-k8s/docker.io/neo4j:5.26.3-community
[root@test-200 ~]# docker tag  swr.cn-north-4.myhuaweicloud.com/ddn-k8s/docker.io/neo4j:5.26.3-community  docker.io/neo4j:5.26.3-community

# docker启动命令
[root@test-200 ~]# docker run -d --name neo4j --restart always -p7474:7474 -p 7687:7687 -v /home/neo4j/data:/data neo4j:5.26.3-community

# 查看启动日志
[root@test-200 ~]# docker logs -f neo4j 
2025-03-04 07:57:37.582+0000 INFO  Logging config in use: File '/var/lib/neo4j/conf/user-logs.xml'
2025-03-04 07:57:37.605+0000 INFO  Starting...
2025-03-04 07:57:38.680+0000 INFO  This instance is ServerId{e8dcb67d} (e8dcb67d-cb96-4427-8fc7-b29dcce65aca)
2025-03-04 07:57:39.930+0000 INFO  ======== Neo4j 5.26.3 ========
2025-03-04 07:57:42.196+0000 INFO  Anonymous Usage Data is being sent to Neo4j, see https://neo4j.com/docs/usage-data/
2025-03-04 07:57:42.252+0000 INFO  Bolt enabled on 0.0.0.0:7687.
2025-03-04 07:57:43.194+0000 INFO  HTTP enabled on 0.0.0.0:7474.
2025-03-04 07:57:43.195+0000 INFO  Remote interface available at http://localhost:7474/
2025-03-04 07:57:43.200+0000 INFO  id: BEBBB9C88510670679EB41AF04B311DFDC7088943CB169A8DA58B3BD62378775
2025-03-04 07:57:43.201+0000 INFO  name: system
2025-03-04 07:57:43.201+0000 INFO  creationDate: 2025-03-04T07:56:36.041Z
2025-03-04 07:57:43.202+0000 INFO  Started.

访问192.168.116.200:7474
默认账号密码  neo4j/neo4j
登录成功会提示让你重新修改密码最低8位字符