时间戳

首页 > 解决方案 > Axon：启用 JPA 存储库提供 errorTokenEntry 时未映射

java - Axon：启用 JPA 存储库提供 errorTokenEntry 时未映射

问题描述

为了在具有 Axon 框架的 Springboot 应用程序中使用多个数据库。我使用了@EnableJpaRepositories，之后我开始出现以下错误

java.lang.IllegalArgumentException: org.hibernate.hql.internal.ast.QuerySyntaxException: TokenEntry is not mapped [SELECT te.segment FROM TokenEntry te WHERE te.processorName = :processorName ORDER BY te.segment ASC]
    at org.hibernate.internal.ExceptionConverterImpl.convert(ExceptionConverterImpl.java:138)
    at org.hibernate.internal.ExceptionConverterImpl.convert(ExceptionConverterImpl.java:181)
    at org.hibernate.internal.ExceptionConverterImpl.convert(ExceptionConverterImpl.java:188)
    at org.hibernate.internal.AbstractSharedSessionContract.createQuery(AbstractSharedSessionContract.java:725)
    at org.hibernate.internal.AbstractSharedSessionContract.createQuery(AbstractSharedSessionContract.java:816)
    at org.hibernate.internal.AbstractSessionImpl.createQuery(AbstractSessionImpl.java:23)
    at sun.reflect.GeneratedMethodAccessor107.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:498)
    at org.springframework.orm.jpa.ExtendedEntityManagerCreator$ExtendedEntityManagerInvocationHandler.invoke(ExtendedEntityManagerCreator.java:366)
    at com.sun.proxy.$Proxy150.createQuery(Unknown Source)
    at sun.reflect.GeneratedMethodAccessor107.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:498)
    at org.springframework.orm.jpa.SharedEntityManagerCreator$SharedEntityManagerInvocationHandler.invoke(SharedEntityManagerCreator.java:314)
    at com.sun.proxy.$Proxy150.createQuery(Unknown Source)
    at org.axonframework.eventhandling.tokenstore.jpa.JpaTokenStore.fetchSegments(JpaTokenStore.java:194)
    at org.axonframework.eventhandling.TrackingEventProcessor$WorkerLauncher.run(TrackingEventProcessor.java:1195)
    at java.lang.Thread.run(Thread.java:748)
Caused by: org.hibernate.hql.internal.ast.QuerySyntaxException: TokenEntry is not mapped [SELECT te.segment FROM TokenEntry te WHERE te.processorName = :processorName ORDER BY te.segment ASC]
    at org.hibernate.hql.internal.ast.QuerySyntaxException.generateQueryException(QuerySyntaxException.java:79)
    at org.hibernate.QueryException.wrapWithQueryString(QueryException.java:103)
    at org.hibernate.hql.internal.ast.QueryTranslatorImpl.doCompile(QueryTranslatorImpl.java:220)
    at org.hibernate.hql.internal.ast.QueryTranslatorImpl.compile(QueryTranslatorImpl.java:144)
    at org.hibernate.engine.query.spi.HQLQueryPlan.<init>(HQLQueryPlan.java:113)
    at org.hibernate.engine.query.spi.HQLQueryPlan.<init>(HQLQueryPlan.java:73)
    at org.hibernate.engine.query.spi.QueryPlanCache.getHQLQueryPlan(QueryPlanCache.java:162)
    at org.hibernate.internal.AbstractSharedSessionContract.getQueryPlan(AbstractSharedSessionContract.java:604)
    at org.hibernate.internal.AbstractSharedSessionContract.createQuery(AbstractSharedSessionContract.java:716)
    ... 15 common frames omitted
Caused by: org.hibernate.hql.internal.ast.QuerySyntaxException: TokenEntry is not mapped
    at org.hibernate.hql.internal.ast.util.SessionFactoryHelper.requireClassPersister(SessionFactoryHelper.java:169)
    at org.hibernate.hql.internal.ast.tree.FromElementFactory.addFromElement(FromElementFactory.java:91)
    at org.hibernate.hql.internal.ast.tree.FromClause.addFromElement(FromClause.java:79)
    ... 21 common frames omitted

以下是我启用 JPA 存储库的方式

@Data
@Configuration
@EnableScheduling
@ConfigurationProperties(prefix = "spring.datasource")
@EnableJpaRepositories(
        basePackages = {"com.mypackage","org.axonframework.eventhandling.tokenstore.jpa"},
        entityManagerFactoryRef = "postgresEntityManager",
        transactionManagerRef = "postgresTransactionManager")}
)
public class PostgresConfiguration {

标签： javaspring-boothibernatejpaaxon

解决方案

有趣的是，我认为这真的可以开箱即用。您是否有机会使用 Spring Boot @tijo？老实说，我假设不是，但它确实给了我一个建议。

当@RegisterDefaultEntities您使用axon-springboot-starter. 你可以看到这是在JpaAutoConfiguration课堂上完成的。

那里正在做的事情如下：

@RegisterDefaultEntities(packages = {
        "org.axonframework.eventhandling.tokenstore",
        "org.axonframework.modelling.saga.repository.jpa"
})
public class JpaAutoConfiguration { ... }

你介意检查一下这是否有效吗？我在您的配置中看到的主要区别是您只使用"org.axonframework.eventhandling.tokenstorejpa"基本包。

让我们知道这是否有效！

推荐阅读