Neo4j installation, operation, project construction and function realization

1、neo4j The download

1.1、 Enter official website , Download address

Find the corresponding version and download it
reminder ：3.x Versions depend on jdk8,4.x Versions depend on jdk11, Choose to download according to your own environment

1.2、window Environment configuration , I was in window Environment , And has been installed JDK8

1.2.1、 After downloading, unzip it to the specified folder , No installation required

1.2.2、 Configure environment variables

add to PATH Path configuration

1.2.3、 hold Neo4j Installed as a service

Open the command line window as Administrator , Get into neo4j Of bin Catalog

Install and uninstall Services ：

neo4j install-service
neo4j uninstall-service

Start the service , Out of Service , Restart the service and query the status of the service ：

neo4j start
neo4j stop
neo4j restart
neo4j status

Start the service

1.2.4、 client , The default account passwords are neo4j

The first entry will let you change your password

Successful connection

1.2.5、 Test creation , Execute the following statement

create(e:Person{
    name:" Zhang San "}) return e

1.3、CQL Related to the grammar , Please check the official website or CQL grammar

1.4、SpringBoot Project integration spring-boot-starter-data-neo4j

1.4.1、pom.xml

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>

    <groupId>com.github.davidji80.springboot</groupId>
    <artifactId>neo4j</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <packaging>jar</packaging>

    <name>neo4j</name>
    <description>Demo project for Spring Boot</description>

    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.1.6.RELEASE</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>

    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
        <java.version>1.8</java.version>
    </properties>

    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-neo4j</artifactId>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <!--lombok-->
        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <optional>true</optional>
        </dependency>

        <!--swagger-->
        <dependency>
            <groupId>io.springfox</groupId>
            <artifactId>springfox-swagger2</artifactId>
            <version>2.8.0</version>
        </dependency>
        <dependency>
            <groupId>io.springfox</groupId>
            <artifactId>springfox-swagger-ui</artifactId>
            <version>2.8.0</version>
        </dependency>
    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>


</project>

1.4.2、yml

spring:
  data:
    neo4j:
      uri: bolt://localhost:7687
      username: neo4j
      password: 123456
  application:
    name: neo4j-server

server:
  port: 9999

1.4.3、 Function is introduced

Code download address , Need to click to download