我配置了 Neo4j 连接，如用于 spring neo4j 4 的 neo4j 文档中所述。每当我为节点调用 save() 或尝试使用 GraphRepository 接口获取一个节点时，我都会收到以下错误：
org.springframework.data.redis.serializer.SerializationException: Cannot serialize; nested exception is org.springframework.core.serializer.support.SerializationFailedException: Failed to serialize object using DefaultSerializer; nested exception is java.lang.IllegalArgumentException: DefaultSerializer requires a Serializable payload but received an object of type [org.neo4j.ogm.session.Neo4jSession]
at org.springframework.data.redis.serializer.JdkSerializationRedisSerializer.serialize(JdkSerializationRedisSerializer.java:52) ~[spring-data-redis-1.6.1.RELEASE.jar:1.6.1.RELEASE]
at org.springframework.data.redis.core.AbstractOperations.rawHashValue(AbstractOperations.java:166) ~[spring-data-redis-1.6.1.RELEASE.jar:1.6.1.RELEASE]
at org.springframework.data.redis.core.DefaultHashOperations.putAll(DefaultHashOperations.java:128) ~[spring-data-redis-1.6.1.RELEASE.jar:1.6.1.RELEASE]
at org.springframework.data.redis.core.DefaultBoundHashOperations.putAll(DefaultBoundHashOperations.java:85) ~[spring-data-redis-1.6.1.RELEASE.jar:1.6.1.RELEASE]
at org.springframework.session.data.redis.RedisOperationsSessionRepository$RedisSession.saveDelta(RedisOperationsSessionRepository.java:409) ~[spring-session-1.0.2.RELEASE.jar:na]
at org.springframework.session.data.redis.RedisOperationsSessionRepository$RedisSession.access$000(RedisOperationsSessionRepository.java:331) ~[spring-session-1.0.2.RELEASE.jar:na]
at org.springframework.session.data.redis.RedisOperationsSessionRepository.save(RedisOperationsSessionRepository.java:211) ~[spring-session-1.0.2.RELEASE.jar:na]
at org.springframework.session.data.redis.RedisOperationsSessionRepository.save(RedisOperationsSessionRepository.java:141) ~[spring-session-1.0.2.RELEASE.jar:na]
at org.springframework.session.web.http.SessionRepositoryFilter$SessionRepositoryRequestWrapper.commitSession(SessionRepositoryFilter.java:193) ~[spring-session-1.0.2.RELEASE.jar:na]
at org.springframework.session.web.http.SessionRepositoryFilter$SessionRepositoryRequestWrapper.access$100(SessionRepositoryFilter.java:169) ~[spring-session-1.0.2.RELEASE.jar:na]
at org.springframework.session.web.http.SessionRepositoryFilter.doFilterInternal(SessionRepositoryFilter.java:127) ~[spring-session-1.0.2.RELEASE.jar:na]
at org.springframework.session.web.http.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:65) ~[spring-session-1.0.2.RELEASE.jar:na]
at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1652) ~[jetty-servlet-9.2.14.v20151106.jar:9.2.14.v20151106]
at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:121) ~[spring-web-4.2.3.RELEASE.jar:4.2.3.RELEASE]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-4.2.3.RELEASE.jar:4.2.3.RELEASE]
at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1652) ~[jetty-servlet-9.2.14.v20151106.jar:9.2.14.v20151106]
at org.springframework.boot.actuate.autoconfigure.MetricsFilter.doFilterInternal(MetricsFilter.java:103) ~[spring-boot-actuator-1.3.0.RELEASE.jar:1.3.0.RELEASE]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-4.2.3.RELEASE.jar:4.2.3.RELEASE]
at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1652) ~[jetty-servlet-9.2.14.v20151106.jar:9.2.14.v20151106]
at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:585) [jetty-servlet-9.2.14.v20151106.jar:9.2.14.v20151106]
at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:143) [jetty-server-9.2.14.v20151106.jar:9.2.14.v20151106]
at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:577) [jetty-security-9.2.14.v20151106.jar:9.2.14.v20151106]
at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:223) [jetty-server-9.2.14.v20151106.jar:9.2.14.v20151106]
at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1127) [jetty-server-9.2.14.v20151106.jar:9.2.14.v20151106]
at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:515) [jetty-servlet-9.2.14.v20151106.jar:9.2.14.v20151106]
at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:185) [jetty-server-9.2.14.v20151106.jar:9.2.14.v20151106]
at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1061) [jetty-server-9.2.14.v20151106.jar:9.2.14.v20151106]
at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141) [jetty-server-9.2.14.v20151106.jar:9.2.14.v20151106]
at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:97) [jetty-server-9.2.14.v20151106.jar:9.2.14.v20151106]
at org.eclipse.jetty.server.Server.handle(Server.java:499) [jetty-server-9.2.14.v20151106.jar:9.2.14.v20151106]
at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:311) [jetty-server-9.2.14.v20151106.jar:9.2.14.v20151106]
at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:257) [jetty-server-9.2.14.v20151106.jar:9.2.14.v20151106]
at org.eclipse.jetty.io.AbstractConnection$2.run(AbstractConnection.java:544) [jetty-io-9.2.14.v20151106.jar:9.2.14.v20151106]
at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:635) [jetty-util-9.2.14.v20151106.jar:9.2.14.v20151106]
at org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:555) [jetty-util-9.2.14.v20151106.jar:9.2.14.v20151106]
at java.lang.Thread.run(Thread.java:745) [na:1.8.0_60]
Caused by: org.springframework.core.serializer.support.SerializationFailedException: Failed to serialize object using DefaultSerializer; nested exception is java.lang.IllegalArgumentException: DefaultSerializer requires a Serializable payload but received an object of type [org.neo4j.ogm.session.Neo4jSession]
at org.springframework.core.serializer.support.SerializingConverter.convert(SerializingConverter.java:68) ~[spring-core-4.2.3.RELEASE.jar:4.2.3.RELEASE]
at org.springframework.core.serializer.support.SerializingConverter.convert(SerializingConverter.java:35) ~[spring-core-4.2.3.RELEASE.jar:4.2.3.RELEASE]
at org.springframework.data.redis.serializer.JdkSerializationRedisSerializer.serialize(JdkSerializationRedisSerializer.java:50) ~[spring-data-redis-1.6.1.RELEASE.jar:1.6.1.RELEASE]
... 35 common frames omitted
Caused by: java.lang.IllegalArgumentException: DefaultSerializer requires a Serializable payload but received an object of type
[org.neo4j.ogm.session.Neo4jSession]
at org.springframework.core.serializer.DefaultSerializer.serialize(DefaultSerializer.java:43) ~[spring-core-4.2.3.RELEASE.jar:4.2.3.RELEASE]
at org.springframework.core.serializer.support.SerializingConverter.convert(SerializingConverter.java:63) ~[spring-core-4.2.3.RELEASE.jar:4.2.3.RELEASE]
... 37 common frames omitted
我真的不明白为什么会弹出redis。我需要redishttpsession。到目前为止，我没有为 Redis 修改任何内容。只有配置是：
@Configuration
@EnableNeo4jRepositories("com.test.repository")
@EnableTransactionManagement
public class Neo4jConnectionConfiguration extends Neo4jConfiguration{
private final Logger log = LoggerFactory.getLogger(Neo4jConnectionConfiguration.class);
@Autowired
Environment env;
@Override
@Bean
public Neo4jServer neo4jServer(){
log.info("Initialising Server Connection");
return new RemoteServer("http://localhost:7474","neo4j","password");
}
@Override
@Bean
public SessionFactory getSessionFactory(){
log.info("Initializing Session Factory");
return new SessionFactory("com.test.domain");
}
@Override
@Bean
@Scope(value="session", proxyMode = ScopedProxyMode.TARGET_CLASS)
public Session getSession() throws Exception{
log.info("Initializing session scoped session Bean");
return super.getSession();
}
}
没有任何东西是持久的。我怎样才能解决这个问题。
编辑：
实体：
@NodeEntity
public class UserNode {
@GraphId
private long nodeId;
private Long externalId;
@Relationship(type="FRIEND",direction=Relationship.UNDIRECTED)
private Set<UserNode> user = new HashSet<UserNode>(0);
public UserNode(){}
public UserNode(Long externalId){
this.externalId = externalId;
}
}
Git：https ://github.com/CeryniTheRat/neo4jredisdemo 示例项目，错误相同