spring - Error creating bean with name 'dataSource' defined in ServletContext resource

Question

I am working on struts2 demo project and spring to manage Hibernate sessions.

I am following this article http://www.splinter.com.au/using-spring-to-manage-hibernate-sessions-in/

ERROR

  SEVERE: Exception sending context initialized event to listener instance of class org.springframework.web.context.ContextLoaderListener
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'dataSource' defined in ServletContext resource [/WEB-INF/applicationContext.xml]: Initialization of bean failed; nested exception is java.lang.NoSuchFieldError: NULL
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:527)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:456)
    at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:294)
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:225)
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:291)
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:193)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:609)
    at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:895)
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:425)
    at org.springframework.web.context.ContextLoader.createWebApplicationContext(ContextLoader.java:276)
    at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:197)
    at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:47)
    at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4791)
    at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5285)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
    at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1559)
    at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1549)
    at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
    at java.util.concurrent.FutureTask.run(FutureTask.java:138)
    at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
    at java.lang.Thread.run(Thread.java:662)
Caused by: java.lang.NoSuchFieldError: NULL
    at org.springframework.expression.TypedValue.<clinit>(TypedValue.java:32)
    at org.springframework.expression.spel.support.StandardEvaluationContext.setRootObject(StandardEvaluationContext.java:85)
    at org.springframework.expression.spel.support.StandardEvaluationContext.<init>(StandardEvaluationContext.java:74)
    at org.springframework.context.expression.StandardBeanExpressionResolver.evaluate(StandardBeanExpressionResolver.java:124)
    at org.springframework.beans.factory.support.AbstractBeanFactory.evaluateBeanDefinitionString(AbstractBeanFactory.java:1299)
    at org.springframework.beans.factory.support.BeanDefinitionValueResolver.evaluate(BeanDefinitionValueResolver.java:210)
    at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveValueIfNecessary(BeanDefinitionValueResolver.java:182)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAutowireCapableBeanFactory.java:1360)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1118)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:517)
    ... 21 more
Sep 24, 2012 7:22:18 AM org.apache.catalina.core.StandardContext startInternal
SEVERE: Error listenerStart
Sep 24, 2012 7:22:18 AM org.apache.catalina.core.StandardContext startInternal
SEVERE: Context [/1-Struts2_CRUD] startup failed due to previous errors
Sep 24, 2012 7:22:18 AM org.apache.catalina.core.ApplicationContext log
INFO: Closing Spring root WebApplicationContext
Sep 24, 2012 7:22:18 AM org.apache.catalina.loader.WebappClassLoader clearReferencesJdbc
SEVERE: The web application [/1-Struts2_CRUD] registered the JDBC driver [com.mysql.jdbc.Driver] but failed to unregister it when the web application was stopped. To prevent a memory leak, the JDBC Driver has been forcibly unregistered.
Sep 24, 2012 7:22:18 AM org.apache.catalina.loader.WebappClassLoader clearReferencesThreads
SEVERE: The web application [/1-Struts2_CRUD] appears to have started a thread named [Abandoned connection cleanup thread] but has failed to stop it. This is very likely to create a memory leak.

applicationContext.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xmlns:aop="http://www.springframework.org/schema/aop"
       xmlns:tx="http://www.springframework.org/schema/tx"
       xmlns:context="http://www.springframework.org/schema/context"
       xsi:schemaLocation="
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.0.xsd
http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.0.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd
http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd">

    <!-- enable annotation beans definitions -->
    <context:component-scan base-package="com.pirzada"/>

    <!-- Basic DataSource Configuration -->
    <bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource">
        <property name="driverClassName" value="com.mysql.jdbc.Driver"/>
        <property name="url" value="jdbc:mysql://localhost:3306/struts2_demo_db"/>
        <property name="username" value="root"/>
        <property name="password" value="786"/>
    </bean>


    <bean id="sessionFactory" class="org.springframework.orm.hibernate4.LocalSessionFactoryBean">
        <property name="dataSource" ref="dataSource"/>

        <property name="packagesToScan">
            <list>
                <value>com.pirzada.dao</value>
            </list>
        </property>
        <property name="hibernateProperties">
            <props>
                <prop key="hibernate.dialect">org.hibernate.dialect.MySQL5Dialect</prop>
                <prop key="hibernate.show_sql">true</prop>
                <prop key="hibernate.format_sql">true</prop>
                <prop key="hibernate.hbm2ddl.auto">update</prop>
                <prop key="hibernate.connection.useUnicode">true</prop>
                <prop key="hibernate.connection.characterEncoding">UTF-8</prop>
                <prop key="hibernate.max_fetch_depth">0</prop>
                <prop key="hibernate.jdbc.use_scrollable_resultset">true</prop>
            </props>
        </property>
    </bean>

    <!-- defining transaction manager bean using Hibernate -->
    <bean id="txManager" class="org.springframework.orm.hibernate4.HibernateTransactionManager">
        <property name="sessionFactory" ref="sessionFactory"/>
    </bean>

    <!-- enable the configuration of transactional behavior based on annotations -->
    <tx:annotation-driven transaction-manager="txManager"/>

    <!-- &lt;!&ndash; exception translation bean post processor &ndash;&gt;
   <bean class="org.springframework.dao.annotation.PersistenceExceptionTranslationPostProcessor"/>
   <bean class="org.springframework.orm.hibernate4.HibernateExceptionTranslator"/>-->

    <!--  DAO beans -->
    <!--
    <bean id="userDAO"  class="org.droidaceapps.dao.UserDAOImpl">
        <property name="hibernateTemplate" ref="hibernateTemplate" />
    </bean>

    &lt;!&ndash;  Service beans &ndash;&gt;

    <bean id="userService"  class="org.droidaceapps.services.UserServiceImpl">
        <property name="userDAO" ref="userDAO" />
    </bean>-->

</beans>

web.xml

<web-app xmlns="http://java.sun.com/xml/ns/javaee"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://java.sun.com/xml/ns/javaee
          http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd"
         version="3.0">

  <display-name>Archetype Created Web Application</display-name>

    <!--<context-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>classpath:applicationContext.xml</param-value>
    </context-param>-->


    <filter>
        <filter-name>struts2</filter-name>
        <filter-class>
            org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter
        </filter-class>
    </filter>

    <filter-mapping>
        <filter-name>struts2</filter-name>
        <url-pattern>/*</url-pattern>
    </filter-mapping>

    <!-- Spring -->
    <listener> <!-- Required for the struts2 spring plugin to work -->
        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
    </listener>
    <filter> <!-- Get spring to keep the session open for the whole request, so hibernate's lazy loads work -->
        <filter-name>openSessionInViewFilter</filter-name>
        <filter-class>org.springframework.orm.hibernate4.support.OpenSessionInViewFilter</filter-class>
        <init-param>
            <param-name>sessionFactoryBeanName</param-name>
            <param-value>sessionFactory</param-value>
        </init-param>
    </filter>
    <filter-mapping>
        <filter-name>openSessionInViewFilter</filter-name>
        <url-pattern>/*</url-pattern>
    </filter-mapping>


    <welcome-file-list>
        <welcome-file>/index.jsp</welcome-file>
    </welcome-file-list>

</web-app>

Hibernate.cfg.xml

<?xml version='1.0' encoding='utf-8'?>
<!DOCTYPE hibernate-configuration PUBLIC
        "-//Hibernate/Hibernate Configuration DTD//EN"
        "http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd">
<hibernate-configuration>
    <session-factory>
        <property name="hibernate.connection.driver_class">com.mysql.jdbc.Driver</property>
        <property name="hibernate.connection.url">jdbc:mysql://localhost:3306/struts2_demo_db</property>
        <property name="hibernate.connection.username">root</property>
        <property name="hibernate.connection.password">786</property>
        <property name="hibernate.connection.pool_size">1</property>
        <property name="hibernate.dialect">org.hibernate.dialect.MySQL5Dialect</property>

        <!-- Echo all executed SQL to stdout for debugging -->
        <property name="show_sql">true</property>
        <property name="hbm2ddl.auto">update</property>


        <property name="hibernate.connection.provider_class">org.hibernate.service.jdbc.connections.internal.C3P0ConnectionProvider</property>
        <property name="hibernate.c3p0.max_size">100</property>
        <property name="hibernate.c3p0.min_size">1</property>
        <property name="hibernate.c3p0.idle_test_period">30</property>

        <mapping class="com.pirzada.domain.User"/>
        <!-- DB schema will be updated if needed -->
        <!-- <property name="hbm2ddl.auto">update</property> -->
    </session-factory>
</hibernate-configuration>

UserDAOImpl

/*@Transactional is needed so that a Hibernate transaction is set up, otherwise updates won't have an affect*/
@Transactional
public class UserDAOImpl implements UserDAO {

    // So Spring can inject the session factory
    protected SessionFactory sessionFactory;
    public void setSessionFactory(SessionFactory value) {
        sessionFactory = value;
    }

    // Shortcut for sessionFactory.getCurrentSession()
    protected Session session() {
        return sessionFactory.getCurrentSession();
    }

    @Override
    public void saveOrUpdateUser(User user) {
        session().saveOrUpdate(user);
    }
}

maven

<dependencies>
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>4.10</version>
        </dependency>

        <!-- javaee-api 6 dependencies -->
        <dependency>
            <groupId>javax</groupId>
            <artifactId>javaee-api</artifactId>
            <version>6.0</version>
            <scope>provided</scope>
        </dependency>

        <!-- Spring framework dependencies -->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-orm</artifactId>
            <version>3.1.2.RELEASE</version>
        </dependency>

        <dependency>
            <groupId>org.apache.struts</groupId>
            <artifactId>struts2-spring-plugin</artifactId>
            <version>2.3.4.1</version>
        </dependency>

        <!-- struts2 dependencies -->
        <dependency>
            <groupId>org.apache.struts</groupId>
            <artifactId>struts2-core</artifactId>
            <version>2.3.4.1</version>
        </dependency>

        <!-- sl4j dependencies -->
        <dependency>
            <groupId>log4j</groupId>
            <artifactId>log4j</artifactId>
            <version>1.2.17</version>
        </dependency>
        <dependency>
            <groupId>org.slf4j</groupId>
            <artifactId>slf4j-api</artifactId>
            <version>${slf4j.version}</version>
        </dependency>
        <dependency>
            <groupId>org.slf4j</groupId>
            <artifactId>slf4j-log4j12</artifactId>
            <version>${slf4j.version}</version>
        </dependency>

        <!-- Hibernate dependencies -->
        <dependency>
            <groupId>org.hibernate</groupId>
            <artifactId>hibernate-core</artifactId>
            <version>${hibernate.core.version}</version>
        </dependency>

        <dependency>
            <groupId>org.hibernate</groupId>
            <artifactId>hibernate-validator</artifactId>
            <version>4.3.0.Final</version>
        </dependency>

        <dependency>
            <groupId>org.hibernate</groupId>
            <artifactId>hibernate-c3p0</artifactId>
            <version>${hibernate.core.version}</version>
        </dependency>

        <!-- JDBC dependencies -->
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>5.1.21</version>
        </dependency>

    </dependencies>

score 3 · Accepted Answer

クラスパス内の JAR ファイルの互換性のないバージョンに問題があるようです。たとえば、Spring では、休止状態の下位または上位のバージョンが必要になる場合があります。hibernate.core.version- これは便利です。代わりに Hibernate3 を使用してみてください。Hibernate4 とその Spring サポートに問題があるに違いありません。

score 1 · Accepted Answer

解決策を提供することはできませんが、十分なポイントがなくコメントできないため、解決策を見つけることができることを願って、私が得た情報を提供できます。

サンプルプロジェクトを実行しようとすると、同じエラーが発生します。Hibernate 3.2.0.ga、Maven 2、Spring 3.2.0、および Tomcat 7 を実行しています。正確なエラーが発生します。ソースファイルをダウンロードし、休憩を入れて、デバッグで Tomcat を実行しました。私が言えることから。登録されたスコープを取得しようとすると、エラーが発生します。Bean が渡すのは「シングルトン」であり、そのスコープを探すと null が返され、説明したエラーが発生します。

私は、健全性のために、すべての Bean に「セッション」を追加しましたが、別のエラーが発生しました

java.lang.IllegalStateException: No thread-bound request found: Are you referring to request attributes outside of an actual web request, or processing a request outside of the originally receiving thread? If you are actually operating within a web request and still receive this message, your code is probably running outside of DispatcherServlet/DispatcherPortlet: In this case, use RequestContextListener or RequestContextFilter to expose the current request.
    at org.springframework.web.context.request.RequestContextHolder.currentRequestAttributes(RequestContextHolder.java:131)
    ...

私も解決策を見つけたいので、これがこれを解決するための正しい軌道に乗ることを願っています. プロジェクトとプロジェクトインフラストラクチャのセットアップは私の弱点なので、これは常に頭を悩ませます。

編集:案の定、ライブラリのバージョンの競合である可能性が最も高いです。私のプロジェクトでは、最初にエラーが発生したときに最新のSpringおよびHibernate 3を使用しようとしていました。どのバージョンが相互に互換性があるかを Google で検索したところ、Spring 3.0.0.RELEASE が Hibernate 3.4.0.GA で動作することを示す古いコメントが Hibernate フォーラムから見つかりました。2 つのツールの互換性のある最新バージョンを入手できるようになるまで、それぞれを更新する予定です。

SOコメントの誰かが言った

互換性のあるライブラリが見つかるまで、ライブラリをいじってみてください。それは開発者としての楽しみの 1 つではありませんか?

... 私は確かにその男が冗談を言っていたことを願っています.

spring - Error creating bean with name 'dataSource' defined in ServletContext resource

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