springBoot 与neo4j的简单整合示例

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

@NodeEntity
public class Person {
 @Id 
 @GeneratedValue
 private Long id;
 private String name;
 private String born; 
 public Person() {// 从 Neo4j API 2.0.5开始需要无参构造函数

 }
 public Person(String name, String born) {
 this.name = name;
 this.born = born;
 }
 //省略getter and setter

@NodeEntity
public class Movie {
 @Id
 @GeneratedValue
 private Long id;
 private String title;
 private String released;
 public Movie() {

 }
 public Movie(String title, String released) {
 this.title = title;
 this.released = released;
 }
 //省略getter and setter

public interface MovieRepository extends CrudRepository<Movie, Long> {
 Movie findByTitle(String title);
}

public interface PersonRepository extends CrudRepository<Person, Long> {
 Person findByName(String name);
}

 @Relationship(type = "ACTED_IN", direction = Relationship.OUTGOING)
 public Set<Movie> actors;

 public void addActor(Movie movie) {
 if (actors == null) {
  actors = new HashSet<>();
 }
 actors.add(movie);
 }
 
 @Relationship(type = "DIRECTED", direction = Relationship.OUTGOING)
 public Set<Movie> directors;

 public void addDirector(Movie movie) {
 if (directors == null) {
  directors = new HashSet<>();
 }
 directors.add(movie);
 }

#本地连接可以省略该行，非本地配置改对应ip
#spring.data.neo4j.uri=bolt://localhost
spring.data.neo4j.username=neo4j
spring.data.neo4j.password=123456

 @Test
 public void testSaveMovie() { 
 Movie m1 = new Movie("无问西东", "2018");
 Movie m2 = new Movie("罗曼蒂克消亡史", "2016");
 movieRepo.save(m1);
 movieRepo.save(m2);
 }

 @Test
 public void testSavePerson() {
 Person p1 = new Person("章子怡", "1979");
 Person p2 = new Person("李芳芳", "1976");
 Person p3 = new Person("程耳", "1970");
 Movie m1 = movieRepo.findByTitle("罗曼蒂克消亡史");
 Movie m2 = movieRepo.findByTitle("无问西东"); 
 if (m1!=null) {
 p1.addActor(m1);
 p3.addDirector(m1);
 }
 if (m2!=null) {
 p1.addActor(m2);
 p2.addDirector(m2);
 }
 personRepo.save(p1);
 personRepo.save(p2);
 personRepo.save(p3);
 }

 @Test
 public void testfindByTitle() {
 Movie movie = movieRepo.findByTitle("罗曼蒂克消亡史");
 }

{
 "id":26,
 "title":"罗曼蒂克消亡史",
 "released":"2016"
}

 @Test
 public void testfindByName() {
 Person person = personRepo.findByName("章子怡");
 }

{
 "id":27,
 "name":"章子怡",
 "born":"1979",
 "actors":[
 {
  "id":25,
  "title":"无问西东",
  "released":"2018"
 },
 {
  "id":26,
  "title":"罗曼蒂克消亡史",
  "released":"2016"
 }
 ]
}