spring cloud Alibaba 微服务项目如下错误：

Caused by: java.lang.IllegalStateException: Required identifier property not found for class com.huajun.kgbuilder.domainmodel.Movie!
    at org.springframework.data.mapping.PersistentEntity.getRequiredIdProperty(PersistentEntity.java:106)
    at org.springframework.data.repository.core.support.PersistentEntityInformation.getIdType(PersistentEntityInformation.java:74)
    at org.springframework.data.neo4j.repository.support.Neo4jRepositoryFactory.getTargetRepository(Neo4jRepositoryFactory.java:72)
    at org.springframework.data.repository.core.support.RepositoryFactorySupport.getRepository(RepositoryFactorySupport.java:319)
    at org.springframework.data.repository.core.support.RepositoryFactoryBeanSupport.lambda$afterPropertiesSet$5(RepositoryFactoryBeanSupport.java:323)
    at org.springframework.data.util.Lazy.getNullable(Lazy.java:230)
    at org.springframework.data.util.Lazy.get(Lazy.java:114)
    at org.springframework.data.repository.core.support.RepositoryFactoryBeanSupport.afterPropertiesSet(RepositoryFactoryBeanSupport.java:329)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1845)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1782)
    ... 46 common frames omitted
09:13:13.752 [Thread-33] WARN  c.a.n.c.h.HttpClientBeanHolder - [shutdown,108] - [HttpClientBeanHolder] Start destroying common HttpClient
Disconnected from the target VM, address: '127.0.0.1:1654', transport: 'socket'

Process finished with exit code 1

 

原因：微服务项目的jar包

<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-data-neo4j</artifactId>
    <version>2.5.3</version>
</dependency>

实体类定义如下引用的是ogm包下文件，需要换成org.springframework.data.neo4j包下的文件

import org.neo4j.ogm.annotation.GeneratedValue;
import org.neo4j.ogm.annotation.Id;
import org.neo4j.ogm.annotation.NodeEntity;
import org.neo4j.ogm.annotation.Property;

 

正确配置

package com.huajun.kgbuilder.domainmodel;

import java.util.Collections;
import java.util.HashSet;
import java.util.Optional;
import java.util.Set;
import java.util.stream.Collectors;

import org.springframework.data.neo4j.core.schema.Id;
import org.springframework.data.neo4j.core.schema.Node;
import org.springframework.data.neo4j.core.schema.Property;
import org.springframework.data.neo4j.core.schema.Relationship;
import org.springframework.data.neo4j.core.schema.GeneratedValue;
import org.springframework.data.neo4j.core.support.UUIDStringGenerator;

@Node
public class Person {


//    @Id @GeneratedValue(UUIDStringGenerator.class)
//    private String id;

//    @Id @GeneratedValue(generatorRef = "myIdGenerator")
//    private String id;

    @Id
    @GeneratedValue
    private Long id;

    private String name;

    private Person() {
        // Empty constructor required as of Neo4j API 2.0.5
    }

    ;

    public Person(String name) {
        this.name = name;
    }

    /**
     * Neo4j doesn't REALLY have bi-directional relationships. It just means when querying
     * to ignore the direction of the relationship.
     * https://dzone.com/articles/modelling-data-neo4j
     */
    @Relationship(type = "TEAMMATE")
    public Set<Person> teammates;

    public void worksWith(Person person) {
        if (teammates == null) {
            teammates = new HashSet<>();
        }
        teammates.add(person);
    }

    public String toString() {
        return this.name + "'s teammates => "
                + Optional.ofNullable(this.teammates).orElse(
                Collections.emptySet()).stream()
                .map(Person::getName)
                .collect(Collectors.toList());
    }

    public String getName() {
        return name;
    }

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