Question

我正在使用hibernate HPA构建Spring WebMVC UI背后的应用程序。拼图的每个部分都通过了单元测试，但我在将应用程序粘合在一起时遇到了麻烦。

看起来Hibernate事务策略阻止Hibernate参与事务。

到目前为止的研究： Hibernate默认配置了jta事务策略。

的假设是

正在执行服务层上的@Transactional注释（我可以在日志中看到它）。正在从事务管理器中检索JDBC数据源。然后，当事务管理器尝试将JDBC数据源附加到事务时，它突然无法找到事务。我已经跟踪了代码，当Bitronix去寻找它时，交易就不存在了。

此问题的堆栈是：

Postgresql XA驱动程序
Bitronics 2.1.7
Hibernate 4.3.7
Spring 4.1.6
Pivotal tc Runtime 3.0.2.RELEASE / 8.0.15.A.RELEASE

以下是失败方法的代码：

@Service
public class ConfigPropertiesServiceImpl {
    private Logger logger = LoggerFactory.getLogger(this.getClass());

    @Autowired
    private ConfigPropertiesSDO configPropertiesSDO;

    @Autowired
    private ConfigPropertiesDAO configPropertiesDAO;

    @Transactional
    public PropertyValue fetchPropertyValue (String key)
    {
        return configPropertiesSDO.fetchProperty(key);
    }

}

显示交易已启动的日志：

DEBUG DispatcherServlet - DispatcherServlet with name 'dispatcher' processing GET request for [/myapp-war/ajax/cfgFind]
DEBUG RequestMappingHandlerMapping - Looking up handler method for path /ajax/cfgFind
DEBUG RequestMappingHandlerMapping - Returning handler method [public org.springframework.web.servlet.ModelAndView com.myApp.ui.security.controller.ConfigurationLayoutController.getCfgFind()]
DEBUG DefaultListableBeanFactory - Returning cached instance of singleton bean 'configurationLayoutController'
DEBUG DispatcherServlet - Last-Modified value for [/myapp-war/ajax/cfgFind] is: -1
DEBUG JtaTransactionManager - Creating new transaction with name [com.myApp.svc.config.ConfigPropertiesServiceImpl.fetchPropertyValue]: PROPAGATION_REQUIRED,ISOLATION_DEFAULT; ''
DEBUG BitronixTransactionManager - beginning a new transaction
DEBUG BitronixTransactionManager - dumping 0 transaction context(s)
DEBUG BitronixTransaction - creating new transaction with GTRID [3139322E3136382E302E35300000000005692D6D00000002]
DEBUG BitronixTransactionManager - creating new thread context
DEBUG BitronixTransactionManager - changing current thread context to a ThreadContext with transaction null, default timeout 60s
DEBUG ThreadContext - assigning <a Bitronix Transaction with GTRID [3139322E3136382E302E35300000000005692D6D00000002], status=NO_TRANSACTION, 0 resource(s) enlisted (started null)> to <a ThreadContext with transaction null, default timeout 60s>
DEBUG BitronixTransaction - changing transaction status to ACTIVE
DEBUG TransactionLogAppender - between 14848 and 14909, writing a Bitronix TransactionLogRecord with status=ACTIVE, recordLength=53, headerLength=28, time=90778990, sequenceNumber=4, crc32=-880986447, gtrid=3139322E3136382E302E35300000000005692D6D00000002, uniqueNames=
DEBUG TransactionLogAppender - disk journal appender now at position 14909
DEBUG BitronixTransaction - transaction status is changing from NO_TRANSACTION to ACTIVE - executing 0 listener(s)
DEBUG TaskScheduler - scheduling transaction timeout task on a Bitronix Transaction with GTRID [3139322E3136382E302E35300000000005692D6D00000002], status=ACTIVE, 0 resource(s) enlisted (started Thu Jan 01 19:12:58 CST 1970) for Thu Jan 01 19:13:58 CST 1970
DEBUG TaskScheduler - removing task by a Bitronix Transaction with GTRID [3139322E3136382E302E35300000000005692D6D00000002], status=ACTIVE, 0 resource(s) enlisted (started Thu Jan 01 19:12:58 CST 1970)
DEBUG TaskScheduler - scheduled a TransactionTimeoutTask on a Bitronix Transaction with GTRID [3139322E3136382E302E35300000000005692D6D00000002], status=ACTIVE, 0 resource(s) enlisted (started Thu Jan 01 19:12:58 CST 1970) scheduled for Thu Jan 01 19:13:58 CST 1970, total task(s) queued: 3
DEBUG BitronixTransactionManager - begun new transaction at Thu Jan 01 19:12:58 CST 1970

显示该语句无法加入该事务的日志：

DEBUG EntityManagerFactoryUtils - Opening JPA EntityManager
TRACE SessionFactoryImpl$SessionBuilderImpl - Opening Hibernate Session.  tenant=null, owner=org.hibernate.jpa.internal.EntityManagerImpl@7b6bfb1d
TRACE SessionImpl - Opened session at timestamp: 14400807842
DEBUG TransactionCoordinatorImpl - Skipping JTA sync registration due to auto join checking
TRACE TransactionCoordinatorImpl - registered JTA platform says we cannot currently register synchronization; skipping
DEBUG AbstractEntityManagerImpl - Looking for a JTA transaction to join
DEBUG AbstractEntityManagerImpl - Unable to join JTA transaction
DEBUG TransactionCoordinatorImpl - Skipping JTA sync registration due to auto join checking

这是我的Spring Context初始化：

public class AppInitializer implements WebApplicationInitializer {

    @Override
    public void onStartup(ServletContext container) throws ServletException {
        Logger logger = LoggerFactory.getLogger(this.getClass());


        AnnotationConfigWebApplicationContext rootContext = new AnnotationConfigWebApplicationContext();
        rootContext.register(DatabaseConfig.class);
        rootContext.refresh();

        // Manage the lifecycle of the root appcontext
        container.addListener(new ContextLoaderListener(rootContext));
        container.setInitParameter("defaultHtmlEscape", "true");

        AnnotationConfigWebApplicationContext mvcContext = new AnnotationConfigWebApplicationContext();
        mvcContext.register(ViewConfig.class);
        mvcContext.setServletContext(container);

        ServletRegistration.Dynamic servlet = container.addServlet(
                "dispatcher", new DispatcherServlet(mvcContext));

        servlet.setLoadOnStartup(1);
        Set<String> mappingConflicts = servlet.addMapping("/");

        if (!mappingConflicts.isEmpty()) {
            for (String s : mappingConflicts) {
                logger.error("Mapping conflict: " + s);
            }
            throw new IllegalStateException(
                    "'appServlet' cannot be mapped to '/' under Tomcat versions <= 7.0.14");
        }
    }
}

...以及配置事务处理的数据库配置类...

@EnableTransactionManagement
@ComponentScan({ "com.myApp.svc.*","com.myApp.core.*","com.myApp.ui.*" })
@Configuration
public class DatabaseConfig {


    @Bean(destroyMethod="shutdown")
    public BitronixTransactionManager bitronixTransactionManager() {
        btmConfig();

        return new BitronixTransactionManager();
    }


    @Bean
    public JtaTransactionManager transactionManager() {
        JtaTransactionManager mgr = new JtaTransactionManager();

        mgr.setTransactionManager(bitronixTransactionManager ());
        mgr.setUserTransaction(bitronixTransactionManager ());

        mgr.afterPropertiesSet();

        return mgr;
    }

    @Bean
    public TransactionTemplate transactionTemplate ()
    {
        return new TransactionTemplate (transactionManager());
    }

    @Bean(initMethod = "init", destroyMethod = "close")
    public DataSource dataSource() {

        PoolingDataSource dataSourceInstance = new PoolingDataSource();
        dataSourceInstance.set ... ();

        dataSourceInstance.init();

        return dataSourceInstance;
    }

    @Bean
public LocalContainerEntityManagerFactoryBean localContainerEntityManagerFactoryBean()
        throws IOException {
    // The bean isn't created yet, but we need some of its functions
    // This instance will be released as soon as the method goes out of
    // scope
    BitronixTransactionManager tm = bitronixTransactionManager();


    PrivateDatastoreServiceImpl pds = new PrivateDatastoreServiceImpl();
    pds.setPrivateDatastorePropertiesFile(privateDatastorePropertiesFile());
    pds.init();

    LocalContainerEntityManagerFactoryBean emf = null;

    PrivateDatastoreConfigurationModel model = pds
            .retrieveRawJdbcParameters();

    Properties props = new Properties();
    props.setProperty(HIBERNATE_DIALECT,
            pds.getHibernateStrategy(model.getDbType()));
    props.setProperty(HIBERNATE_DDL_AUTO, "false");
    props.setProperty(HIBERNATE_SHOW_SQL, "false");
    props.setProperty(HIBERNATE_FORMAT_SQL, "false");
    props.setProperty("hibernate.current_session_context_class", 
            "jta");
    props.setProperty("hibernate.transaction.jta.platform",
            org.hibernate.engine.transaction.jta.platform.internal.BitronixJtaPlatform.class.getName());
    props.setProperty("hibernate.jndi.class", 
            bitronix.tm.jndi.BitronixInitialContextFactory.class.getName());
    props.setProperty("jta.UserTransaction", 
            "BTMUserTransaction");

    emf = new LocalContainerEntityManagerFactoryBean();
    emf.setJtaDataSource(securityDataSource());
    emf.setJpaVendorAdapter(jpaVendorAdapter());
    emf.setPersistenceUnitName("myAppPersistence");
    emf.setPackagesToScan("com.myApp.*");
    emf.setJpaProperties(props);

    return emf;
}


}

编辑：添加了软件堆栈的详细信息

Answer 1

有多个交互问题导致hibernate拒绝加入交易。

hibernate属性并不合适。如上所述，hibernate甚至没有尝试加入交易。最终的休眠配置是：

Properties props = new Properties(); 
props.setProperty(HIBERNATE_DIALECT, pds.getHibernateStrategy(model.getDbType()));
props.setProperty(HIBERNATE_DDL_AUTO, "false");
props.setProperty(HIBERNATE_SHOW_SQL, "false");
props.setProperty(HIBERNATE_FORMAT_SQL, "false");
props.setProperty("hibernate.transaction.jta.platform", org.hibernate.engine.transaction.jta.platform.internal.BitronixJtaPlatform.class.getName());
props.setProperty("hibernate.jndi.class", bitronix.tm.jndi.BitronixInitialContextFactory.class.getName());
props.setProperty("jta.UserTransaction", "BTMUserTransaction");
props.setProperty("jdbc.exclusive-connection.mode", "Transactional");

// JTA stuff 
props.setProperty("hibernate.connection.release_mode","after_statement");
props.setProperty("hibernate.current_session_context_class","jta");
props.setProperty("hibernate.transaction.manager_lookup_class","org.hibernate.transaction.BTMTransactionManagerLookup");

bitronix事务管理器必须是单例。建立一个新的事务管理器，该bean应该被定义为：

@Bean(destroyMethod="shutdown")
public BitronixTransactionManager bitronixTransactionManager() {
    btmConfig();
    return TransactionManagerServices.getTransactionManager();
}

让两个交易经理浮动使问题混乱。

Hibernate Entity Manager无法在事务中登记datasosurce

1 个答案: