JBoss 7上Hibernate 4無法正常運行c3p0

Question

當我在Jboss7上部署Spring4-Hibernate-4應用程序時，它會引發錯誤並導致部署失敗。詳細信息：

配置代碼：JBoss中7 standalone.xml

@Configuration 
@EnableTransactionManagement 
@ComponentScan(basePackages = { "com.arg.utility.hibernate" }) 
@PropertySource(value = { "classpath:application.properties" }) 
public class HibernateConfigWS { 

@Bean 
public LocalSessionFactoryBean sessionFactoryWS() throws SQLException, NamingException { 
    LocalSessionFactoryBean sessionFactory = new LocalSessionFactoryBean(); 
    sessionFactory.setDataSource(dataSourceWS()); 
    sessionFactory.setPackagesToScan(new String[] { "com.arg.utility.hibernate.model" }); 
    sessionFactory.setHibernateProperties(hibernateProperties()); 
    return sessionFactory; 
} 


@Bean 
@Lazy 
public DataSource dataSourceWS() throws SQLException, NamingException { 
    InitialContext initContext = new InitialContext(); 
    DataSource ds = null; 
    try{ 
     ds = (DataSource)initContext.lookup(System.getProperty(UtilityConstants.JNDI_WS_DATASOURCE)); 
    }catch(Exception e){ 
     LOGGER.error("Datasource lookup failed :"+e.getStackTrace()); 
    } 
    return ds; 
} 


@Bean 
public HibernateTransactionManager transactionManagerWS(SessionFactory sessionFactoryWS) { 
    HibernateTransactionManager txManager = new HibernateTransactionManager(); 
    txManager.setSessionFactory(sessionFactoryWS); 
    return txManager; 
} 

    //----------------------HIBERNATE COMMON PROPERTIES CONFIG---------------------// 
/** 
* 
* @return properties object 
*/ 
private Properties hibernateProperties() { 
    Properties properties = new Properties(); 
    properties.put("hibernate.dialect", environment.getRequiredProperty("hibernate.dialect")); 
    properties.put("hibernate.show_sql", "false"); 
    properties.put("hibernate.format_sql", environment.getRequiredProperty("hibernate.format_sql")); 
    /*properties.put("hibernate.connection.provider_class", "org.hibernate.c3p0.internal.C3P0ConnectionProvider"); // commented 
    properties.put("hibernate.c3p0.min_size", "5"); // commented 
    properties.put("hibernate.c3p0.max_size", "20"); // commented 
    properties.put("hibernate.c3p0.timeout", "1800"); // commented 
    properties.put("hibernate.c3p0.max_statements", "50");*/ // commented 
    return properties;   
} 

} 

數據源條目：

<datasource jndi-name="java:/WSDataSource" pool-name="WSDataSource" enabled="true" use-java-context="true"> 
       <connection-url>jdbc:mysql://dshost:3306/ds_name</connection-url> 
       <connection-property name="zeroDateTimeBehavior"> 
        convertToNull 
       </connection-property> 
       <driver>com.mysql</driver> 
       <pool> 
        <min-pool-size>0</min-pool-size> 
        <max-pool-size>10</max-pool-size> 
        <prefill>true</prefill> 
       </pool> 
       <security> 
        <user-name>abc</user-name> 
        <password>abc@123</password> 
       </security> 
       <validation> 
        <valid-connection-checker class-name="org.jboss.jca.adapters.jdbc.extensions.mysql.MySQLValidConnectionChecker"/> 
        <validate-on-match>false</validate-on-match> 
        <background-validation>true</background-validation> 
        <background-validation-millis>30000</background-validation-millis> 
        <exception-sorter class-name="org.jboss.jca.adapters.jdbc.extensions.mysql.MySQLExceptionSorter"/> 
       </validation> 
    </datasource> 

在部署應用程序，我得到以下錯誤：

<<< ServerService Thread Pool -- 68:2017/04/07 16:20:54.676:org.springframework.web.context.ContextLoader::::: Context initialization failed >>> 
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'transactionManagerWS' defined in com.arg.hibernate.config.HibernateConfigWS: Invocation of init method failed; nested exception is org.hibernate.service.UnknownUnwrapTypeException: Cannot unwrap to requested type [javax.sql.DataSource] 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1628) 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:555) 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:483) 
    at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306) 
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230) 
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302) 
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197) 
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:761) 
    at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:866) 
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:542) 
    at org.springframework.web.context.ContextLoader.configureAndRefreshWebApplicationContext(ContextLoader.java:444) 
    at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:326) 
    at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:107) 
    at io.undertow.servlet.core.ApplicationListeners.contextInitialized(ApplicationListeners.java:187) 
    at io.undertow.servlet.core.DeploymentManagerImpl.deploy(DeploymentManagerImpl.java:198) 
    at org.wildfly.extension.undertow.deployment.UndertowDeploymentService.startContext(UndertowDeploymentService.java:100) 
    at org.wildfly.extension.undertow.deployment.UndertowDeploymentService$1.run(UndertowDeploymentService.java:82) 
    at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source) 
    at java.util.concurrent.FutureTask.run(Unknown Source) 
    at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) 
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) 
    at java.lang.Thread.run(Unknown Source) 
    at org.jboss.threads.JBossThread.run(JBossThread.java:320) 
Caused by: org.hibernate.service.UnknownUnwrapTypeException: Cannot unwrap to requested type [javax.sql.DataSource] 
    at org.hibernate.engine.jdbc.connections.internal.UserSuppliedConnectionProviderImpl.unwrap(UserSuppliedConnectionProviderImpl.java:55) 
    at org.springframework.orm.hibernate4.SessionFactoryUtils.getDataSource(SessionFactoryUtils.java:106) 
    at org.springframework.orm.hibernate4.HibernateTransactionManager.afterPropertiesSet(HibernateTransactionManager.java:356) 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1687) 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1624) 
    ... 22 more 

當我取消註釋配置文件中的c3p0屬性設置行時，該應用程序爲su部署得當（但在創建連接時拋出異常）。但是，我的要求是我不必使用c3p0。所以我的查詢：

1. 是否有可能在Jboss 7上運行Hibernate 4而不使用c3p0？
2. 如果是，如何？是否需要其他配置？

Answer 1

如果你看一下堆棧跟蹤它是指UserSuppliedConnectionProviderImpl。這是拋出異常的地方。根據您的配置和ConnectionProviderInitiator.initiateService中的代碼，我預計這將是DatasourceConnectionProviderImpl的一個實例。

AvailableSettings.DATASOURCE由LocalSessionFactoryBuilder.LocalSessionFactoryBuilder構造函數設置，如果已提供DataSource。你確定你的JNDI查找不是默默迴歸null？