无法查找 JNDI 名称 [jdbc/jbpm-ds]

Question

我正在尝试开发 jBPM spring 引导应用程序，但出现无法查找 JNDI 名称 [jdbc/jbpm-ds] 错误。

为此，我使用了 jbpm-7.36.0.Final、Spring-Boot-2.2.6 和 jbpm-spring-boot 7.36.0 Final 以及 spring 启动 Bitronix api。下面是我的pom.xml

<dependencies>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-web</artifactId>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-tomcat</artifactId>
        <scope>provided</scope>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-jta-bitronix</artifactId>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-orm</artifactId>
        <!-- <version>5.2.6.RELEASE</version> -->
    </dependency>
    <dependency>
        <groupId>com.microsoft.sqlserver</groupId>
        <artifactId>mssql-jdbc</artifactId>
    </dependency>
    <dependency>
        <groupId>org.kie</groupId>
        <artifactId>jbpm-spring-boot-starter-basic</artifactId>
        <version>${runtime.version}</version>
    </dependency>
</dependencies>

在我的 application.properties 文件中，我配置了以下值

#hibernate configuration
spring.jpa.properties.hibernate.dialect=org.hibernate.dialect.SQLServer2012Dialect
spring.jpa.properties.hibernate.show_sql=true
spring.jpa.properties.hibernate.hbm2ddl.auto=update

#JTA enabled
spring.jta.enabled=true

#bitronix Non-XA transaction manager configuration
spring.datasource.xa.properties.url=jdbc:sqlserver://10.1.5.209:1433;databaseName=MRR3;
spring.datasource.xa.properties.uniqueName=jdbc/jbpm-ds
spring.datasource.xa.properties.username=sa
spring.datasource.xa.properties.password=password_123
spring.datasource.xa.properties.driver-class-name=com.microsoft.sqlserver.jdbc.SQLServerDriver
spring.datasource.xa.data-source-class-name=bitronix.tm.resource.jdbc.lrc.LrcXADataSource

下面是代码片段

    @Bean
    public StatefulKnowledgeSession newStatefulKnowledgeSession() throws Exception {
        RuntimeEnvironmentBuilder builder = null;
        if (usePersistence) {
            TransactionManager tm = TransactionManagerServices.getTransactionManager();

            entityManagerFactory = Persistence.createEntityManagerFactory("org.jbpm.persistence.jpa");//Line where Exception occurs
            System.out.println(entityManagerFactory.getProperties());

            Environment env = EnvironmentFactory.newEnvironment();
            env.set(EnvironmentName.ENTITY_MANAGER_FACTORY, entityManagerFactory);
            env.set(EnvironmentName.TRANSACTION_MANAGER, tm);

            builder = RuntimeEnvironmentBuilder.Factory.get().newDefaultBuilder()
                    .entityManagerFactory(entityManagerFactory)
                    .addEnvironmentEntry(EnvironmentName.TRANSACTION_MANAGER, tm);

            builder.knowledgeBase(readKnowledgeBase);

            StatefulKnowledgeSession ksession = JPAKnowledgeService
                    .newStatefulKnowledgeSession(readKnowledgeBase, null, env);

            return ksession;
            // builder =
            // RuntimeEnvironmentBuilder.Factory.get().newDefaultBuilder()
            // .entityManagerFactory(entityManagerFactory);
        }
    }

分享重要的日志信息

2020-05-11 23:41:12.122  INFO 18852 --- [main] o.hibernate.jpa.internal.util.LogHelper  : HHH000204: Processing PersistenceUnitInfo [
    name: org.jbpm.persistence.jpa
    ...] {} <>
2020-05-11 23:41:12.155  WARN 18852 --- [main] ConfigServletWebServerApplicationContext : Exception encountered during context initialization - cancelling refresh attempt: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'newStatefulKnowledgeSession' defined in class path resource [com/citiustech/mrr/controller/AbstractionProcessController.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.kie.internal.runtime.StatefulKnowledgeSession]: Factory method 'newStatefulKnowledgeSession' threw exception; nested exception is org.hibernate.service.spi.ServiceException: Unable to create requested service [org.hibernate.engine.jdbc.env.spi.JdbcEnvironment] {} <>
.
.
.
Caused by: org.hibernate.service.spi.ServiceException: Unable to create requested service [org.hibernate.engine.jdbc.env.spi.JdbcEnvironment]
    at org.hibernate.service.internal.AbstractServiceRegistryImpl.createService(AbstractServiceRegistryImpl.java:275)
    at org.hibernate.service.internal.AbstractServiceRegistryImpl.initializeService(AbstractServiceRegistryImpl.java:237)
    at org.hibernate.service.internal.AbstractServiceRegistryImpl.getService(AbstractServiceRegistryImpl.java:214)
    at org.hibernate.id.factory.internal.DefaultIdentifierGeneratorFactory.injectServices(DefaultIdentifierGeneratorFactory.java:152)
    at org.hibernate.service.internal.AbstractServiceRegistryImpl.injectDependencies(AbstractServiceRegistryImpl.java:286)
    at org.hibernate.service.internal.AbstractServiceRegistryImpl.initializeService(AbstractServiceRegistryImpl.java:243)
    at org.hibernate.service.internal.AbstractServiceRegistryImpl.getService(AbstractServiceRegistryImpl.java:214)
    at org.hibernate.boot.internal.InFlightMetadataCollectorImpl.<init>(InFlightMetadataCollectorImpl.java:179)
    at org.hibernate.boot.model.process.spi.MetadataBuildingProcess.complete(MetadataBuildingProcess.java:119)
    at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.metadata(EntityManagerFactoryBuilderImpl.java:904)
    at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.build(EntityManagerFactoryBuilderImpl.java:935)
    at org.hibernate.jpa.HibernatePersistenceProvider.createEntityManagerFactory(HibernatePersistenceProvider.java:56)
    at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:79)
    at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:54)
    at com.citiustech.mrr.controller.AbstractionProcessController.newStatefulKnowledgeSession(AbstractionProcessController.java:51)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:498)
    at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:154)
    ... 20 common frames omitted
Caused by: org.hibernate.engine.jndi.JndiException: Unable to lookup JNDI name [jdbc/jbpm-ds]
    at org.hibernate.engine.jndi.internal.JndiServiceImpl.locate(JndiServiceImpl.java:100)
    at org.hibernate.engine.jdbc.connections.internal.DatasourceConnectionProviderImpl.configure(DatasourceConnectionProviderImpl.java:98)
    at org.hibernate.boot.registry.internal.StandardServiceRegistryImpl.configureService(StandardServiceRegistryImpl.java:100)
    at org.hibernate.service.internal.AbstractServiceRegistryImpl.initializeService(AbstractServiceRegistryImpl.java:246)
    at org.hibernate.service.internal.AbstractServiceRegistryImpl.getService(AbstractServiceRegistryImpl.java:214)
    at org.hibernate.engine.jdbc.env.internal.JdbcEnvironmentInitiator.buildJdbcConnectionAccess(JdbcEnvironmentInitiator.java:145)
    at org.hibernate.engine.jdbc.env.internal.JdbcEnvironmentInitiator.initiateService(JdbcEnvironmentInitiator.java:66)
    at org.hibernate.engine.jdbc.env.internal.JdbcEnvironmentInitiator.initiateService(JdbcEnvironmentInitiator.java:35)
    at org.hibernate.boot.registry.internal.StandardServiceRegistryImpl.initiateService(StandardServiceRegistryImpl.java:94)
    at org.hibernate.service.internal.AbstractServiceRegistryImpl.createService(AbstractServiceRegistryImpl.java:263)
    ... 39 common frames omitted
Caused by: javax.naming.NameNotFoundException: unable to find a bound object at name 'jdbc/jbpm-ds'
    at bitronix.tm.jndi.BitronixContext.lookup(BitronixContext.java:83)
    at bitronix.tm.jndi.BitronixContext.lookup(BitronixContext.java:67)
    at javax.naming.InitialContext.lookup(InitialContext.java:421)
    at org.hibernate.engine.jndi.internal.JndiServiceImpl.locate(JndiServiceImpl.java:97)
    ... 48 common frames omitted

我也很想知道我的以下理解是否正确

jBPM 只支持 JTA 类型的事务，即全局事务。集成 jBPM 时不能使用 RESOURCE_LOCAL 事务类型。
当我说事务类型 RESOURCE_LOCAL 时，意味着只有一个数据源事务将在应用程序中共享。
jBPM RuntimeManager 使用 'org.jbpm.domain' 持久化单元名称（强制类型）来处理它所有的内部 table 操作。
所有特定于应用程序的事务都可以由默认的持久性单元名称处理，即'org.jbpm.persistence.jpa'。这可以被自定义持久性上下文覆盖。
JTA又分为XADatasource类型和Non-XADatasource类型两种。当数据源位于应用程序服务器容器中时，应使用 XADatasource。 Non-XADatasource 对于基于 EJB 的应用程序很有用。
以下配置需要 XADatasource

<provider>org.hibernate.jpa.HibernatePersistenceProvider</provider>

和

<property name="hibernate.transaction.jta.platform" value="org.hibernate.service.jta.platform.internal.SunOneJtaPlatform" /> <property name="hibernate.transaction.jta.platform" value="org.hibernate.service.jta.platform.internal.WeblogicJtaPlatform" />
以下配置需要非 XADatasource

<provider>org.hibernate.ejb.HibernatePersistence</provider>

和

<property name="hibernate.transaction.jta.platform" value="org.hibernate.service.jta.platform.internal.JBossAppServerJtaPlatform"/>
是否需要第 6 点或第 7 点，如果是，如何不使用 persistence.xml。
下面的有什么用属性什么jar有这个class

spring.jpa.properties.hibernate.transaction.manager_lookup_class=org.hibernate.transaction.BTMTransactionManagerLookup

Answer 1

有一些误解：

jbpm-spring-boot-starter-basic 正在使用，但是您没有使用任何 spring 加载的 bean 来创建您的 StatefulKnowledgeSession。 starter 的主要思想是避免低级框架配置。
这个参数：spring.datasource.xa.properties.uniqueName没有出现在文档中，是驼峰式。

解决方案 1：Spring 启动

使用正式版及其配置

https://github.com/kiegroup/droolsjbpm-integration/tree/master/kie-spring-boot/kie-spring-boot-starters/jbpm-spring-boot-starter-basic

#data source configuration
spring.datasource.username=sa
spring.datasource.password=sa
spring.datasource.url=jdbc:h2:./target/spring-boot-jbpm;MVCC=true
spring.datasource.driver-class-name=org.h2.Driver
spring.datasource.type=org.apache.tomcat.jdbc.pool.XADataSource

#hibernate configuration
spring.jpa.properties.hibernate.dialect=org.hibernate.dialect.H2Dialect
spring.jpa.properties.hibernate.show_sql=false
spring.jpa.properties.hibernate.hbm2ddl.auto=update
spring.jpa.hibernate.naming.physical-strategy=org.hibernate.boot.model.naming.PhysicalNamingStrategyStandardImpl

#transaction manager configuration
spring.jta.narayana.transaction-manager-id=1

我们可以看到，jbpm-spring-boot-starter-basic依赖于spring-boot 没有任何 new 数据库配置的数据源引擎。为什么？因为 StatefulKnowledgeSession 只需要一个经典的数据库连接。

也许这个启动器初始化一个 StatefulKnowledgeSession 准备好在任何 spring java bean 中使用 @Autowire

解决方案 2：Spring + 手动配置

一个简单的研究告诉我，要从 JPAKnowledgeService 创建一个 StatefulKnowledgeSession 需要经典的：

EntityManagerFactory and TransactionManager

在您的代码中也看到了这一点：

Environment env = EnvironmentFactory.newEnvironment();
            env.set(EnvironmentName.ENTITY_MANAGER_FACTORY, entityManagerFactory);
            env.set(EnvironmentName.TRANSACTION_MANAGER, tm);

在这个例子中：

http://www.javased.com/index.php?source_dir=droolsjbpm-integration/drools-container/drools-spring/src/main/java/org/drools/container/spring/beans/StatefulKnowledgeSessionBeanFactory.java

public static class JpaConfiguration {
  private EntityManagerFactory emf;
  private PlatformTransactionManager tm;
}
//..
Environment env = KnowledgeBaseFactory.newEnvironment();
env.set( EnvironmentName.ENTITY_MANAGER_FACTORY,
jpaConfiguration.getEntityManagerFactory() );
env.set( EnvironmentName.TRANSACTION_MANAGER,
jpaConfiguration.getPlatformTransactionManager() );

所以解决方案可能只是配置一个 spring 启动以拥有优雅的自动装配：

//@SpringBootApplication or @Configuration
public class SpringMainApplication{
  @Autowire
  private EntityManagerFactory emf;
  @Autowire
  private PlatformTransactionManager tm;
  @Autowire
  private KnowledgeBase kbase;

  @Bean
  public KnowledgeBase readKnowledgeBase() throws Exception {
    List<RuleResource> resources = new ArrayList<RuleResource>();
    resources.add(new RuleResource("zzz/explore/ruleengine/rules/CalcPI.drl", ResourceType.DRL));
    return KnowledgeBaseHelper.readKnowledgeBase(resources);
  }

  @Bean
  public StatefulKnowledgeSession newStatefulKnowledgeSession() throws Exception {
    //if KnowledgeBase autowire does not works, just call directly
    //KnowledgeBase kbase =  readKnowledgeBase();
    Environment env = KnowledgeBaseFactory.newEnvironment();
    env.set( EnvironmentName.ENTITY_MANAGER_FACTORY, emf);
    env.set( EnvironmentName.TRANSACTION_MANAGER,tm);

    StatefulKnowledgeSession ksession = JPAKnowledgeService.newStatefulKnowledgeSession(kbase, null, env);
    return ksession;
  }

}

现在，我们需要配置 spring 启动此实例以供使用：

@Autowire
private EntityManagerFactory emf;
@Autowire
private PlatformTransactionManager tm;

我们可以这样做：

//@SpringBootApplication or @Configuration
class SpringMainApplication {

  //spring boo twill auto-provide a Bean of type DataSource
  // if the properties are there
  @Autowired
    private DataSource dataSource;

  @Bean
  public EntityManagerFactory entityManagerFactory() {

    HibernateJpaVendorAdapter vendorAdapter = new HibernateJpaVendorAdapter();
    vendorAdapter.setGenerateDdl(true);

    LocalContainerEntityManagerFactoryBean factory = new LocalContainerEntityManagerFactoryBean();
    factory.setJpaVendorAdapter(vendorAdapter);
    factory.setPackagesToScan("com.acme.domain");
    factory.setDataSource(dataSource);
    factory.afterPropertiesSet();

    return factory.getObject();
  }

  @Bean
  public PlatformTransactionManager transactionManager() {
    JpaTransactionManager txManager = new JpaTransactionManager();
    txManager.setEntityManagerFactory(entityManagerFactory());
    return txManager;
  }
}

有很多文档和示例可以创建 EntityManagerFactory 和 TransactionManager。检查参考部分。

另外，如果你正确使用启动器，也许不需要这些配置

解决方案 3：手动创建实例

如您所见，只需要实体管理器和事务管理器。此外，要创建一个实体管理器，还需要一个有效的数据源。所以你只需要像这样的东西：

//@SpringBootApplication or @Configuration
public class SpringMainApplication{

  @Bean
  public KnowledgeBase readKnowledgeBase() throws Exception {
    List<RuleResource> resources = new ArrayList<RuleResource>();
    resources.add(new RuleResource("zzz/explore/ruleengine/rules/CalcPI.drl", ResourceType.DRL));
    return KnowledgeBaseHelper.readKnowledgeBase(resources);
  }

  @Bean
  public StatefulKnowledgeSession newStatefulKnowledgeSession() throws Exception {

    //Crete datasource
    //https://gist.github.com/jrichardsz/8b8dffcf1cdf42444654abc227d9f4c1
    //or use the spring provided datasource

    //create an entity manger
    EntityManagerFactory emf = ...;
    //create an transaction manger
    PlatformTransactionManager tm =....;

    Environment env = KnowledgeBaseFactory.newEnvironment();
    env.set( EnvironmentName.ENTITY_MANAGER_FACTORY, emf);
    env.set( EnvironmentName.TRANSACTION_MANAGER,tm);

    StatefulKnowledgeSession ksession = JPAKnowledgeService.newStatefulKnowledgeSession(kbase, null, env);
    return ksession;
  }

}

}

备注

这些片段没有经过测试，因为 drools 和数据库不容易配置，而且您没有共享最小的可运行示例。
我会加上这个研究的httplink

参考资料

create datasource
create datasource
create datasource
autowire datasource
configure entitymanager and transaction manager
configure entitymanager and transaction manager
create knowledgebase
create knowledgebase
create knowledgebase
JPAKnowledgeService
JPAKnowledgeService
JPAKnowledgeService
JPAKnowledgeService
JPAKnowledgeService
JPAKnowledgeService
spring boot starters
spring boot starters
StatefulKnowledgeSession
StatefulKnowledgeSession

Answer 2

根据@JRichardsz 的建议，我对我的代码进行了以下更改以使其与 Spring Boot

一起使用

@Autowired
private AbstractPlatformTransactionManager jtaPlatform;

@PersistenceUnit(name = "org.jbpm.persistence.jpa")
private EntityManagerFactory entityManagerFactory;

@Bean
public StatefulKnowledgeSession newStatefulKnowledgeSession() throws Exception {
    RuntimeEnvironmentBuilder builder = null;
    if (usePersistence) {
        builder = RuntimeEnvironmentBuilder.Factory.get().newDefaultBuilder()
                .entityManagerFactory(entityManagerFactory)
                .addEnvironmentEntry(EnvironmentName.TRANSACTION_MANAGER, jtaPlatform);

        builder.knowledgeBase(readKnowledgeBase);

        RuntimeManager manager = RuntimeManagerFactory.Factory.get().newSingletonRuntimeManager(builder.get());

        return (StatefulKnowledgeSession) manager.getRuntimeEngine(EmptyContext.get())
                .getKieSession();
    } 
}

对我来说 xa.properties 与 Bitronix 一起工作，但如果它不适合你那么你可以切换到 Spring 提供的数据源。

无法查找 JNDI 名称 [jdbc/jbpm-ds]

Unable to lookup JNDI name [jdbc/jbpm-ds]

java

jta

bitronix

spring-boot

redhat-bpm

解决方案 1：Spring 启动

解决方案 2：Spring + 手动配置

解决方案 3：手动创建实例

备注

参考资料