neo4j 安装及遇到问题

neo4j 下载地址：下载地址

1、配置环境变量

NEO4J_HOME

如：NEO4J_HOME=D:\software\neo4j-community-4.4.18

将环境变量添加到path中 %NEO4J_HOME%\bin

2、启动服务

以管理员身份运行cmd，启动命令 neo4j.bat console

启动成功显示如下信息

C:\Windows\system32>neo4j.bat console
Directories in use:
home:         D:\software\neo4j-community-4.4.18
config:       D:\software\neo4j-community-4.4.18\conf
logs:         D:\software\neo4j-community-4.4.18\logs
plugins:      D:\software\neo4j-community-4.4.18\plugins
import:       D:\software\neo4j-community-4.4.18\import
data:         D:\software\neo4j-community-4.4.18\data
certificates: D:\software\neo4j-community-4.4.18\certificates
licenses:     D:\software\neo4j-community-4.4.18\licenses
run:          D:\software\neo4j-community-4.4.18\run
Starting Neo4j.
2023-03-16 02:40:49.366+0000 INFO  Starting...
2023-03-16 02:40:50.198+0000 INFO  This instance is ServerId{0b37c696} (0b37c696-3a07-4a6d-84d0-24aad0019d17)
2023-03-16 02:40:51.403+0000 INFO  ======== Neo4j 4.4.18 ========
2023-03-16 02:40:53.090+0000 INFO  Performing postInitialization step for component 'security-users' with version 3 and status CURRENT
2023-03-16 02:40:53.090+0000 INFO  Updating the initial password in component 'security-users'
2023-03-16 02:40:54.127+0000 INFO  Bolt enabled on activate.navicat.com:7687.
2023-03-16 02:40:54.809+0000 INFO  Remote interface available at http://localhost:7474/
2023-03-16 02:40:54.813+0000 INFO  id: EBCA901C8B4EDDEB1AB9623F2BA03B940712D22AF0B63122604729B897469555
2023-03-16 02:40:54.813+0000 INFO  name: system
2023-03-16 02:40:54.814+0000 INFO  creationDate: 2023-03-16T02:17:25.514Z
2023-03-16 02:40:54.814+0000 INFO  Started.

访问地址在启动信息中： http://localhost:7474/

默认登录用户名密码 neo4j

3、启动报错

警告: ERROR! Neo4j cannot be started using java version 1.8.0_241
警告: * Please use Oracle(R) Java(TM) 11, OpenJDK(TM) 11 to run Neo4j Server.
* Please see https://neo4j.com/docs/ for Neo4j installation instructions.
Invoke-Neo4j : This instance of Java is not supported
所在位置 D:\software\neo4j-community-4.4.18\bin\neo4j.ps1:21 字符: 7
+ Exit (Invoke-Neo4j -Verbose:$Arguments.Verbose -CommandArgs $Argument ...
+       ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : NotSpecified: (:) [Write-Error], WriteErrorException
    + FullyQualifiedErrorId : Microsoft.PowerShell.Commands.WriteErrorException,Invoke-Neo4j

问题原因：jdk版本过低 

问题处理方法

a: 升级jdk版本

b: 在 neo4j.bat 文件中第一行添加 set "JAVA_HOME=D:\software\jdk-11.0.2" 指定jdk目录