SpringBoot + docker + neo4j

Posted 2020-10-19 uptothesky

 

 

 

 

下拉镜像

docker pull neo4j

启动镜像

docker run -d -p 7473:7473 -p 7687:7687 -p 7474:7474 neo4j

打开浏览器：http://192.168.31.146:7474/browser/

 

用户名/密码初始值为：neo4j

首次登陆需要修改密码

 

登陆后界面

 

新建springboot项目，添加pom引用

<dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-neo4j</artifactId>
        </dependency>
        <!-- https://mvnrepository.com/artifact/com.voodoodyne.jackson.jsog/jackson-jsog -->
        <dependency>
            <groupId>com.voodoodyne.jackson.jsog</groupId>
            <artifactId>jackson-jsog</artifactId>
            <version>1.1.1</version>
        </dependency>

View Code

添加Actor类

package org.mythsky.neo4jdemo;

import com.fasterxml.jackson.annotation.JsonIdentityInfo;
import com.voodoodyne.jackson.jsog.JSOGGenerator;
import org.neo4j.ogm.annotation.GraphId;
import org.neo4j.ogm.annotation.NodeEntity;

@JsonIdentityInfo(generator = JSOGGenerator.class)
@NodeEntity
public class Actor {
    @GraphId Long id;
    private String name;
    private int born;

    public Long getId() {
        return id;
    }

    public void setId(Long id) {
        this.id = id;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public int getBorn() {
        return born;
    }

    public void setBorn(int born) {
        this.born = born;
    }
}

View Code

添加Movie类

package org.mythsky.neo4jdemo;

import com.fasterxml.jackson.annotation.JsonIdentityInfo;
import com.voodoodyne.jackson.jsog.JSOGGenerator;
import org.neo4j.ogm.annotation.GraphId;
import org.neo4j.ogm.annotation.NodeEntity;
import org.neo4j.ogm.annotation.Relationship;

import java.util.ArrayList;
import java.util.List;

@JsonIdentityInfo(generator = JSOGGenerator.class)
@NodeEntity
public class Movie {
    @GraphId
    Long id;
    String title;
    String year;
    String tagline;
    @Relationship(type = "ACTS_IN",direction =Relationship.INCOMING)
    List<Role> roles = new ArrayList<>();

    public Long getId() {
        return id;
    }

    public void setId(Long id) {
        this.id = id;
    }

    public String getTitle() {
        return title;
    }

    public void setTitle(String title) {
        this.title = title;
    }

    public String getYear() {
        return year;
    }

    public void setYear(String year) {
        this.year = year;
    }

    public String getTagline() {
        return tagline;
    }

    public void setTagline(String tagline) {
        this.tagline = tagline;
    }

    public List<Role> getRoles() {
        return roles;
    }

    public void setRoles(List<Role> roles) {
        this.roles = roles;
    }

    public Movie() {

    }

    public Role addRole(Actor actor, String name){
        Role role=new Role(name,actor,this);
        this.roles.add(role);
        return role;

    }
}

View Code

添加Role类

package org.mythsky.neo4jdemo;

import com.fasterxml.jackson.annotation.JsonIdentityInfo;
import com.voodoodyne.jackson.jsog.JSOGGenerator;
import org.neo4j.ogm.annotation.EndNode;
import org.neo4j.ogm.annotation.GraphId;
import org.neo4j.ogm.annotation.RelationshipEntity;
import org.neo4j.ogm.annotation.StartNode;

@JsonIdentityInfo(generator = JSOGGenerator.class)
@RelationshipEntity(type = "ACTS_IN")
public class Role {
    @GraphId
    Long id;
    String role;
    @StartNode
    Actor actor;
    @EndNode
    Movie movie;

    public Long getId() {
        return id;
    }

    public void setId(Long id) {
        this.id = id;
    }

    public String getRole() {
        return role;
    }

    public void setRole(String role) {
        this.role = role;
    }

    public Actor getActor() {
        return actor;
    }

    public void setActor(Actor actor) {
        this.actor = actor;
    }

    public Movie getMovie() {
        return movie;
    }

    public void setMovie(Movie movie) {
        this.movie = movie;
    }

    public Role(String role, Actor actor, Movie movie) {

        this.role = role;
        this.actor = actor;
        this.movie = movie;
    }

    public Role() {

    }
}

View Code

添加查询接口MovieRepository

package org.mythsky.neo4jdemo;

import org.springframework.data.neo4j.repository.GraphRepository;
import org.springframework.data.repository.query.Param;
import org.springframework.stereotype.Repository;

@Repository
public interface MovieRepository extends GraphRepository<Movie> {
    Movie findByTitle(@Param("title") String title);
}

View Code

添加配置类

package org.mythsky.neo4jdemo;

import org.neo4j.ogm.session.SessionFactory;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.neo4j.repository.config.EnableNeo4jRepositories;
import org.springframework.data.neo4j.transaction.Neo4jTransactionManager;
import org.springframework.transaction.annotation.EnableTransactionManagement;

@Configuration
@EnableTransactionManagement
@EnableNeo4jRepositories

public class Neo4jConfig   {
    @Bean
    public SessionFactory sessionFactory() {
        return new SessionFactory("org.mythsky.neo4jdemo");
    }

    @Bean
    public Neo4jTransactionManager transactionManager() {
        return new Neo4jTransactionManager(sessionFactory());
    }
}

View Code

添加配置文件ogm.properties

compiler=org.neo4j.ogm.compiler.MultiStatementCypherCompiler
driver=org.neo4j.ogm.drivers.http.driver.HttpDriver
URI=http://192.168.31.146:7474
username = neo4j
password = your own password

View Code

单元测试

package org.mythsky.neo4jdemo;

import org.junit.Assert;
import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.SpringRunner;

@RunWith(SpringRunner.class)
@ContextConfiguration(classes = {Neo4jConfig.class})
@SpringBootTest
public class Neo4jDemoApplicationTests {
    private static Logger logger= LoggerFactory.getLogger(Neo4jDemoApplicationTests.class);
    @Autowired
    MovieRepository movieRepository;
    @Before
    public void initData(){
        movieRepository.deleteAll();

        Movie matrix1=new Movie();
        matrix1.setTitle("The Matrix");
        matrix1.setYear("1999-03-31");

        Movie matrix2=new Movie();
        matrix2.setTitle("The Matrix Reloaded");
        matrix2.setYear("2003-05-07");

        Movie matrix3=new Movie();
        matrix3.setTitle("The Matrix Revolutions");
        matrix3.setYear("2003-10-27");

        Actor keanu=new Actor();
        keanu.setName("Keanu Reeves");

        Actor laurence=new Actor();
        laurence.setName("Laurence Fishburne");

        Actor carrieanne=new Actor();
        carrieanne.setName("Carrie-Anne Moss");

        matrix1.addRole(keanu,"Neo");
        matrix1.addRole(laurence,"Morpheus");
        matrix1.addRole(carrieanne,"Trinity");
        movieRepository.save(matrix1);
        Assert.assertNotNull(matrix1.getId());

        matrix2.addRole(keanu,"Neo");
        matrix2.addRole(laurence,"Morpheus");
        matrix2.addRole(carrieanne,"Trinity");
        movieRepository.save(matrix2);
        Assert.assertNotNull(matrix2.getId());

        matrix3.addRole(keanu,"Neo");
        matrix3.addRole(laurence,"Morpheus");
        matrix3.addRole(carrieanne,"Trinity");
        movieRepository.save(matrix3);
        Assert.assertNotNull(matrix3.getId());
    }
    @Test
    public void get() {
        Movie movie=movieRepository.findByTitle("The Matrix");
        Assert.assertNotNull(movie);
        logger.info("===movie===movie:{},{}",movie.getTitle(),movie.getYear());
        for(Role role:movie.getRoles()){
            logger.info("=====actor:{},role:{}",role.getActor().getName(),role.getRole());
        }
    }

}

View Code

运行测试

 

在浏览器查看数据