我想将 Spring Boot CQRS 项目拆分为三个项目：1- 命令项目 2- 查询项目 3- 核心项目（包含模型和事件）。 所有这些项目都被定义为父级 Maven 项目的模块（具有 POM 打包类型）。 要从命令和查询项目访问核心项目以访问模型，我使用以下命令：
@EntityScan(basePackages = {
“com.his.patient.core.*”,
“org.axonframework.eventsourcing.eventstore.jpa”,
“org.axonframework.eventhandling.saga.repository.jpa”,
“org.axonframework.eventhandling.tokenstore”
})
但我收到这些错误：
Error occurred. Starting retry mode.
Fetched token: null for segment: Segment[0/0]
我使用的版本：
春季启动：3.2.2
轴突框架：4.9.3
当我不使用多模块方式并将所有这三个项目放入一个项目时，它工作得很好。
堆栈跟踪：
2024-03-19T15:27:25.627+03:30 INFO 20536 --- [patient_query_ms] [ main] c.h.p.PatientQueryMsApplication : Starting PatientQueryMsApplication using Java 17.0.7 with PID 20536 (D:\patient-service\patient-management\patient_query_ms\target\classes started by Venos46131105 in D:\patient-service\patient-management)
2024-03-19T15:27:25.630+03:30 INFO 20536 --- [patient_query_ms] [ main] c.h.p.PatientQueryMsApplication : No active profile set, falling back to 1 default profile: "default"
2024-03-19T15:27:25.799+03:30 WARN 20536 --- [patient_query_ms] [ main] o.s.c.annotation.AnnotationTypeMapping : Support for convention-based annotation attribute overrides is deprecated and will be removed in Spring Framework 6.2. Please annotate the following attributes in @org.axonframework.eventhandling.EventHandler with appropriate @AliasFor declarations: [payloadType]
2024-03-19T15:27:25.803+03:30 WARN 20536 --- [patient_query_ms] [ main] o.s.c.annotation.AnnotationTypeMapping : Support for convention-based annotation attribute overrides is deprecated and will be removed in Spring Framework 6.2. Please annotate the following attributes in @org.axonframework.messaging.interceptors.ExceptionHandler with appropriate @AliasFor declarations: [messageType, payloadType]
2024-03-19T15:27:26.442+03:30 INFO 20536 --- [patient_query_ms] [ main] .s.d.r.c.RepositoryConfigurationDelegate : Bootstrapping Spring Data JPA repositories in DEFAULT mode.
2024-03-19T15:27:26.522+03:30 INFO 20536 --- [patient_query_ms] [ main] .s.d.r.c.RepositoryConfigurationDelegate : Finished Spring Data repository scanning in 73 ms. Found 1 JPA repository interface.
2024-03-19T15:27:27.266+03:30 INFO 20536 --- [patient_query_ms] [ main] o.s.b.w.embedded.tomcat.TomcatWebServer : Tomcat initialized with port 8081 (http)
2024-03-19T15:27:27.282+03:30 INFO 20536 --- [patient_query_ms] [ main] o.apache.catalina.core.StandardService : Starting service [Tomcat]
2024-03-19T15:27:27.283+03:30 INFO 20536 --- [patient_query_ms] [ main] o.apache.catalina.core.StandardEngine : Starting Servlet engine: [Apache Tomcat/10.1.18]
2024-03-19T15:27:27.354+03:30 INFO 20536 --- [patient_query_ms] [ main] o.a.c.c.C.[Tomcat].[localhost].[/] : Initializing Spring embedded WebApplicationContext
2024-03-19T15:27:27.355+03:30 INFO 20536 --- [patient_query_ms] [ main] w.s.c.ServletWebServerApplicationContext : Root WebApplicationContext: initialization completed in 1671 ms
2024-03-19T15:27:27.561+03:30 INFO 20536 --- [patient_query_ms] [ main] org.hibernate.Version : HHH000412: Hibernate ORM core version 6.4.1.Final
2024-03-19T15:27:27.590+03:30 INFO 20536 --- [patient_query_ms] [ main] o.h.c.internal.RegionFactoryInitiator : HHH000026: Second-level cache disabled
2024-03-19T15:27:27.824+03:30 INFO 20536 --- [patient_query_ms] [ main] o.s.o.j.p.SpringPersistenceUnitInfo : No LoadTimeWeaver setup: ignoring JPA class transformer
2024-03-19T15:27:27.849+03:30 INFO 20536 --- [patient_query_ms] [ main] com.zaxxer.hikari.HikariDataSource : HikariPool-1 - Starting...
2024-03-19T15:27:28.122+03:30 INFO 20536 --- [patient_query_ms] [ main] com.zaxxer.hikari.pool.HikariPool : HikariPool-1 - Added connection com.mysql.cj.jdbc.ConnectionImpl@aee05f4
2024-03-19T15:27:28.124+03:30 INFO 20536 --- [patient_query_ms] [ main] com.zaxxer.hikari.HikariDataSource : HikariPool-1 - Start completed.
2024-03-19T15:27:28.166+03:30 WARN 20536 --- [patient_query_ms] [ main] org.hibernate.orm.deprecation : HHH90000025: MySQL8Dialect does not need to be specified explicitly using 'hibernate.dialect' (remove the property setting and it will be selected by default)
2024-03-19T15:27:28.167+03:30 WARN 20536 --- [patient_query_ms] [ main] org.hibernate.orm.deprecation : HHH90000026: MySQL8Dialect has been deprecated; use org.hibernate.dialect.MySQLDialect instead
2024-03-19T15:27:29.122+03:30 INFO 20536 --- [patient_query_ms] [ main] o.h.e.t.j.p.i.JtaPlatformInitiator : HHH000489: No JTA platform available (set 'hibernate.transaction.jta.platform' to enable JTA platform integration)
Hibernate: create table dead_letter_entry (dead_letter_id varchar(255) not null, cause_message varchar(1023), cause_type varchar(255), diagnostics blob, enqueued_at datetime(6) not null, last_touched datetime(6), aggregate_identifier varchar(255), event_identifier varchar(255) not null, message_type varchar(255) not null, meta_data blob, payload blob not null, payload_revision varchar(255), payload_type varchar(255) not null, sequence_number bigint, time_stamp varchar(255) not null, token blob, token_type varchar(255), type varchar(255), processing_group varchar(255) not null, processing_started datetime(6), sequence_identifier varchar(255) not null, sequence_index bigint not null, primary key (dead_letter_id)) engine=InnoDB
Hibernate: create index IDXe67wcx5fiq9hl4y4qkhlcj9cg on dead_letter_entry (processing_group)
Hibernate: create index IDXrwucpgs6sn93ldgoeh2q9k6bn on dead_letter_entry (processing_group, sequence_identifier)
Hibernate: alter table dead_letter_entry drop index UKhlr8io86j74qy298xf720n16v
Hibernate: alter table dead_letter_entry add constraint UKhlr8io86j74qy298xf720n16v unique (processing_group, sequence_identifier, sequence_index)
2024-03-19T15:27:29.329+03:30 INFO 20536 --- [patient_query_ms] [ main] j.LocalContainerEntityManagerFactoryBean : Initialized JPA EntityManagerFactory for persistence unit 'default'
2024-03-19T15:27:29.457+03:30 INFO 20536 --- [patient_query_ms] [ main] o.a.s.a.XStreamAutoConfiguration : Initializing an XStream instance since none was found. The auto configuration base packages will be used as wildcards for the XStream security settings.
2024-03-19T15:27:29.592+03:30 INFO 20536 --- [patient_query_ms] [ main] o.a.s.util.XStreamSecurityTypeUtility : Constructing wildcard type for base package [com.his.patient_query_ms].
2024-03-19T15:27:29.592+03:30 INFO 20536 --- [patient_query_ms] [ main] o.a.s.util.XStreamSecurityTypeUtility : Constructing wildcard type for base package [org.axonframework.eventhandling.tokenstore].
2024-03-19T15:27:29.592+03:30 INFO 20536 --- [patient_query_ms] [ main] o.a.s.util.XStreamSecurityTypeUtility : Constructing wildcard type for base package [org.axonframework.eventhandling.deadletter.jpa].
2024-03-19T15:27:29.592+03:30 INFO 20536 --- [patient_query_ms] [ main] o.a.s.util.XStreamSecurityTypeUtility : Constructing wildcard type for base package [org.axonframework.modelling.saga.repository.jpa].
2024-03-19T15:27:29.601+03:30 INFO 20536 --- [patient_query_ms] [ main] o.a.serialization.ChainingConverter : ContentTypeConverter of type [class org.axonframework.serialization.xml.Dom4JToByteArrayConverter] is ignored. It seems to rely on a class that is not available in the class loader: org/dom4j/Document
2024-03-19T15:27:29.602+03:30 INFO 20536 --- [patient_query_ms] [ main] o.a.serialization.ChainingConverter : ContentTypeConverter of type [class org.axonframework.serialization.xml.InputStreamToDom4jConverter] is ignored. It seems to rely on a class that is not available in the class loader: org/dom4j/Document
2024-03-19T15:27:29.603+03:30 INFO 20536 --- [patient_query_ms] [ main] o.a.serialization.ChainingConverter : ContentTypeConverter of type [class org.axonframework.serialization.xml.XomToStringConverter] is ignored. It seems to rely on a class that is not available in the class loader: nu/xom/Document
2024-03-19T15:27:29.603+03:30 INFO 20536 --- [patient_query_ms] [ main] o.a.serialization.ChainingConverter : ContentTypeConverter of type [class org.axonframework.serialization.xml.InputStreamToXomConverter] is ignored. It seems to rely on a class that is not available in the class loader: nu/xom/ParsingException
2024-03-19T15:27:29.646+03:30 INFO 20536 --- [patient_query_ms] [ main] o.a.config.AxonIQConsoleModule :
2024-03-19T15:27:30.019+03:30 WARN 20536 --- [patient_query_ms] [ main] JpaBaseConfiguration$JpaWebConfiguration : spring.jpa.open-in-view is enabled by default. Therefore, database queries may be performed during view rendering. Explicitly configure spring.jpa.open-in-view to disable this warning
2024-03-19T15:27:30.392+03:30 INFO 20536 --- [patient_query_ms] [ main] o.s.b.w.embedded.tomcat.TomcatWebServer : Tomcat started on port 8081 (http) with context path ''
2024-03-19T15:27:30.654+03:30 INFO 20536 --- [patient_query_ms] [ main] i.a.a.c.impl.AxonServerManagedChannel : Requesting connection details from localhost:8124
2024-03-19T15:27:30.870+03:30 INFO 20536 --- [patient_query_ms] [ main] i.a.a.c.impl.AxonServerManagedChannel : Successfully connected to localhost:8124
2024-03-19T15:27:30.878+03:30 INFO 20536 --- [patient_query_ms] [ main] i.a.a.connector.impl.ControlChannelImpl : Connected instruction stream for context 'default'. Sending client identification
2024-03-19T15:27:30.900+03:30 INFO 20536 --- [patient_query_ms] [ main] i.a.a.c.query.impl.QueryChannelImpl : QueryChannel for context 'default' connected, 0 registrations resubscribed
2024-03-19T15:27:30.906+03:30 INFO 20536 --- [patient_query_ms] [ main] i.a.a.c.query.impl.QueryChannelImpl : Registered handler for query 'com.his.patient.core.queries.FindPatientByPersonalIdQuery : com.his.patient_query_ms.responeObj.PatientResponse' in context 'default'
Hibernate: select te1_0.processor_name,te1_0.segment,te1_0.owner,te1_0.timestamp,te1_0.token,te1_0.token_type from token_entry te1_0 where (te1_0.processor_name,te1_0.segment) in ((?,?))
2024-03-19T15:27:31.002+03:30 INFO 20536 --- [patient_query_ms] [ main] c.h.p.PatientQueryMsApplication : Started PatientQueryMsApplication in 5.833 seconds (process running for 6.275)
Hibernate: select te1_0.segment from token_entry te1_0 where te1_0.processor_name=? order by te1_0.segment
Hibernate: select te1_0.processor_name,te1_0.segment,te1_0.owner,te1_0.timestamp,te1_0.token,te1_0.token_type from token_entry te1_0 where te1_0.processor_name=? order by te1_0.segment
Hibernate: select te1_0.processor_name,te1_0.segment,te1_0.owner,te1_0.timestamp,te1_0.token,te1_0.token_type from token_entry te1_0 where (te1_0.processor_name,te1_0.segment) in ((?,?)) for update
Hibernate: select te1_0.processor_name,te1_0.segment,te1_0.owner,te1_0.timestamp,te1_0.token,te1_0.token_type from token_entry te1_0 where (te1_0.processor_name,te1_0.segment) in ((?,?)) for update
2024-03-19T15:27:31.191+03:30 INFO 20536 --- [patient_query_ms] [atient-group]-0] o.a.e.TrackingEventProcessor : Worker assigned to segment Segment[0/0] for processing
Hibernate: update token_entry set owner=?,timestamp=?,token=?,token_type=? where processor_name=? and segment=?
2024-03-19T15:27:31.211+03:30 INFO 20536 --- [patient_query_ms] [atient-group]-0] o.a.e.TrackingEventProcessor : Using current Thread for last segment worker: TrackingSegmentWorker{processor=patient-group, segment=Segment[0/0]}
Hibernate: select te1_0.processor_name,te1_0.segment,te1_0.owner,te1_0.timestamp,te1_0.token,te1_0.token_type from token_entry te1_0 where (te1_0.processor_name,te1_0.segment) in ((?,?)) for update
Hibernate: update token_entry set owner=?,timestamp=?,token=?,token_type=? where processor_name=? and segment=?
2024-03-19T15:27:31.223+03:30 INFO 20536 --- [patient_query_ms] [atient-group]-0] o.a.e.TrackingEventProcessor : Fetched token: null for segment: Segment[0/0]
com.thoughtworks.xstream.security.ForbiddenClassException: com.his.patient.core.event.NewPatientCreatedEvent
at com.thoughtworks.xstream.security.NoTypePermission.allows(NoTypePermission.java:26) ~[xstream-1.4.20.jar:1.4.20]
at com.thoughtworks.xstream.mapper.SecurityMapper.realClass(SecurityMapper.java:74) ~[xstream-1.4.20.jar:1.4.20]
at com.thoughtworks.xstream.mapper.MapperWrapper.realClass(MapperWrapper.java:125) ~[xstream-1.4.20.jar:1.4.20]
at com.thoughtworks.xstream.mapper.CachingMapper.realClass(CachingMapper.java:47) ~[xstream-1.4.20.jar:1.4.20]
at org.axonframework.serialization.AbstractXStreamSerializer.classForType(AbstractXStreamSerializer.java:171) ~[axon-messaging-4.9.2.jar:4.9.2]
at org.axonframework.axonserver.connector.event.axon.GrpcMetaDataAwareSerializer.classForType(GrpcMetaDataAwareSerializer.java:75) ~[axon-server-connector-4.9.2.jar:4.9.2]
at org.axonframework.serialization.LazyDeserializingObject.<init>(LazyDeserializingObject.java:83) ~[axon-messaging-4.9.2.jar:4.9.2]
at org.axonframework.eventhandling.EventUtils.lambda$upcastAndDeserializeTrackedEvents$1(EventUtils.java:107) ~[axon-messaging-4.9.2.jar:4.9.2]
at java.base/java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:197) ~[na:na]
at java.base/java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:197) ~[na:na]
at org.axonframework.axonserver.connector.event.axon.EventBuffer$SimpleSpliterator.tryAdvance(EventBuffer.java:216) ~[axon-server-connector-4.9.2.jar:4.9.2]
at java.base/java.util.stream.StreamSpliterators$WrappingSpliterator.lambda$initPartialTraversalState$0(StreamSpliterators.java:292) ~[na:na]
at java.base/java.util.stream.StreamSpliterators$AbstractWrappingSpliterator.fillBuffer(StreamSpliterators.java:206) ~[na:na]
at java.base/java.util.stream.StreamSpliterators$AbstractWrappingSpliterator.doAdvance(StreamSpliterators.java:169) ~[na:na]
at java.base/java.util.stream.StreamSpliterators$WrappingSpliterator.tryAdvance(StreamSpliterators.java:298) ~[na:na]
at java.base/java.util.Spliterators$1Adapter.hasNext(Spliterators.java:681) ~[na:na]
at org.axonframework.axonserver.connector.event.axon.EventBuffer.peekNullable(EventBuffer.java:171) ~[axon-server-connector-4.9.2.jar:4.9.2]
at org.axonframework.axonserver.connector.event.axon.EventBuffer.hasNextAvailable(EventBuffer.java:144) ~[axon-server-connector-4.9.2.jar:4.9.2]
at org.axonframework.eventhandling.TrackingEventProcessor.processBatch(TrackingEventProcessor.java:419) ~[axon-messaging-4.9.2.jar:4.9.2]
at org.axonframework.eventhandling.TrackingEventProcessor.processingLoop(TrackingEventProcessor.java:316) ~[axon-messaging-4.9.2.jar:4.9.2]
at org.axonframework.eventhandling.TrackingEventProcessor$TrackingSegmentWorker.run(TrackingEventProcessor.java:1200) ~[axon-messaging-4.9.2.jar:4.9.2]
at org.axonframework.eventhandling.TrackingEventProcessor$WorkerLauncher.cleanUp(TrackingEventProcessor.java:1402) ~[axon-messaging-4.9.2.jar:4.9.2]
at org.axonframework.eventhandling.TrackingEventProcessor$WorkerLauncher.run(TrackingEventProcessor.java:1379) ~[axon-messaging-4.9.2.jar:4.9.2]
at java.base/java.lang.Thread.run(Thread.java:833) ~[na:na]
2024-03-19T15:27:31.257+03:30 WARN 20536 --- [patient_query_ms] [atient-group]-0] o.a.e.TrackingEventProcessor : Releasing claim on token and preparing for retry in 1s
Hibernate: update token_entry set owner=null where owner=? and processor_name=? and segment=?
2024-03-19T15:27:31.298+03:30 INFO 20536 --- [patient_query_ms] [atient-group]-0] o.a.e.TrackingEventProcessor : Released claim
Hibernate: select te1_0.processor_name,te1_0.segment,te1_0.owner,te1_0.timestamp,te1_0.token,te1_0.token_type from token_entry te1_0 where (te1_0.processor_name,te1_0.segment) in ((?,?)) for update
Hibernate: update token_entry set owner=?,timestamp=?,token=?,token_type=? where processor_name=? and segment=?
2024-03-19T15:27:32.314+03:30 INFO 20536 --- [patient_query_ms] [atient-group]-0] o.a.e.TrackingEventProcessor : Fetched token: null for segment: Segment[0/0]
2024-03-19T15:27:32.320+03:30 WARN 20536 --- [patient_query_ms] [atient-group]-0] o.a.e.TrackingEventProcessor : Releasing claim on token and preparing for retry in 2s
提前感谢您的帮助
问题出在 XSTream 序列化程序上。可能您还没有在项目的 application.yml/properties 中配置序列化器：
axon.serializer.general = jackson
axon.serializer.events= jackson
axon.serializer.messages= jackson