SpringBoot 集成neo4j【代碼實現】

url： spring-boot-data-redis樣例模板【自己使用有誤】

url：github源碼demo

1、引入maven依賴

<!-- 與springboot 版本保持一致--!>
<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-data-neo4j</artifactId>
</dependency>

<!-- https://mvnrepository.com/artifact/org.neo4j/neo4j-ogm-http-driver -->
<dependency>
    <groupId>org.neo4j</groupId>
    <artifactId>neo4j-ogm-http-driver</artifactId>
    <version>3.1.14</version>
</dependency>

2、application.properties 配置文件配置

spring.application.name=service-spring-data-neo4j

server.port=8080

#注意uri開頭不是http/https，而是bolt
spring.data.neo4j.uri=bolt://localhost:7687
spring.data.neo4j.username=neo4j
spring.data.neo4j.password=123456

3、編寫實體類【注：實體類存在鏈表結構不可以使用@Data註解】

@NodeEntity(label = "Person")
public class PersonEntity {
    //圖庫id
    private Long id;
    //人名
    private String name;
    //性別
    private String sex;

    /**
     * type 關係名稱
     * direction 關係方向
     *  INCOMING 指向自己
     *  OUTGOING 指向對方
     *  UNDIRECTED 無向
     */
    @Relationship(type = "FRIEND", direction = "OUTGOING")
    private Set<PersonEntity> friends;

    public PersonEntity(){}

    public PersonEntity(String name,String sex){
        this.name = name;
        this.sex = sex;
    }

    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 Set<PersonEntity> getFriends() {
        return friends;
    }

    public void setFriends(Set<PersonEntity> friends) {
        this.friends = friends;
    }

    public String getSex() {
        return sex;
    }

    public void setSex(String sex) {
        this.sex = sex;
    }
}

4、編寫數據寫入層【注：通過方法名的命名來決定執行語句】

@Repository
public interface PersonRepository extends Neo4jRepository<PersonEntity,Long> {
    List<PersonEntity> findByName(String name);
    List<PersonEntity> findByNameLike(String name);
}

5、服務啓動類【注：添加@EnableNeo4jRepositories註解，不然掃描不到數據層】

@SpringBootApplication
@EnableNeo4jRepositories
public class ServiceSpringDataNeo4jApplication {

    public static void main(String[] args){
        SpringApplication.run(ServiceSpringDataNeo4jApplication.class,args);
    }
}