4

メインフレームで DB2 関数を呼び出して ID を取得する必要があるアプリケーションを開発しています。

春のアプリケーション コンテキストでは、zOS 上の DB2 にクエリを実行する jdbc テンプレートを次のように定義しました。

    <bean id="jdbcTemplateDB2"
       class="org.springframework.jdbc.core.JdbcTemplate">
         <property name="dataSource" ref="dataSourceDB2"/>
    </bean>

次に、データソースを次のように定義します。

 <bean id="dataSourceDB2" 
    class="com.ibm.db2.jcc.DB2DataSource">
        <property name="serverName" value="hostname" />
        <property name="portNumber" value="portno"/>
        <property name="databaseName" value="dbname"/>
        <property name="driverType" value="4"/>
        <property name="user" value="userid"/>
        <property name="password" value="password"/>
 </bean>

上記の作品。しかし、ibm の db2jcc.jar ファイルの中を見ると、接続プーリングを使用するデータソースのクラスである com.ibm.db2.jcc.DB2ConnectionPoolDataSource が見つかります。だから私は上記のものの代わりにそれを使用しようとしました-そのように:

 <bean id="dataSourceDB2"
    class="com.ibm.db2.jcc.DB2ConnectionPoolDataSource">
        <property name="serverName" value="hostname" />
        <property name="portNumber" value="portno"/>
        <property name="databaseName" value="dbname"/>
        <property name="driverType" value="4"/>
        <property name="user" value="userid"/>
        <property name="password" value="password"/>
 </bean>

ただし、DB2ConnectionPoolDataSource を使用すると、次のエラーが発生します。

Cannot convert value of type [com.ibm.db2.jcc.DB2ConnectionPoolDataSource] to required type [javax.sql.DataSource] for property 'dataSource': no matching editors or conversion strategy found

完全なstackTraceは以下です

    Exception in thread "main" org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'classUniqueIdDaoImpl_v2': Injection of resource dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'jdbcTemplateDB2' defined in class path resource [META-INF/spring/applicationContext-db2.xml]: Initialization of bean failed; nested exception is org.springframework.beans.ConversionNotSupportedException: Failed to convert property value of type 'com.ibm.db2.jcc.DB2ConnectionPoolDataSource' to required type 'javax.sql.DataSource' for property 'dataSource'; nested exception is java.lang.IllegalStateException: Cannot convert value of type [com.ibm.db2.jcc.DB2ConnectionPoolDataSource] to required type [javax.sql.DataSource] for property 'dataSource': no matching editors or conversion strategy found
        at org.springframework.context.annotation.CommonAnnotationBeanPostProcessor.postProcessPropertyValues(CommonAnnotationBeanPostProcessor.java:307)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1106)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:517)
        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:918)
        at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:469)
        at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:139)
        at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:83)
        at com.slma.euclid.core.dao.MainDB2.main(MainDB2.java:18)
    Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'jdbcTemplateDB2' defined in class path resource [META-INF/spring/applicationContext-db2.xml]: Initialization of bean failed; nested exception is org.springframework.beans.ConversionNotSupportedException: Failed to convert property value of type 'com.ibm.db2.jcc.DB2ConnectionPoolDataSource' to required type 'javax.sql.DataSource' for property 'dataSource'; nested exception is java.lang.IllegalStateException: Cannot convert value of type [com.ibm.db2.jcc.DB2ConnectionPoolDataSource] to required type [javax.sql.DataSource] for property 'dataSource': no matching editors or conversion strategy found
        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$1.getObject(AbstractBeanFactory.java:294)
        at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:225)
        at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:291)
        at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:193)
        at org.springframework.beans.factory.support.DefaultListableBeanFactory.findAutowireCandidates(DefaultListableBeanFactory.java:876)
        at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:818)
        at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:735)
        at org.springframework.context.annotation.CommonAnnotationBeanPostProcessor.autowireResource(CommonAnnotationBeanPostProcessor.java:439)
        at org.springframework.context.annotation.CommonAnnotationBeanPostProcessor.getResource(CommonAnnotationBeanPostProcessor.java:417)
        at org.springframework.context.annotation.CommonAnnotationBeanPostProcessor$ResourceElement.getResourceToInject(CommonAnnotationBeanPostProcessor.java:559)
        at org.springframework.beans.factory.annotation.InjectionMetadata$InjectedElement.inject(InjectionMetadata.java:150)
        at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:87)
        at org.springframework.context.annotation.CommonAnnotationBeanPostProcessor.postProcessPropertyValues(CommonAnnotationBeanPostProcessor.java:304)
        ... 13 more
    Caused by: org.springframework.beans.ConversionNotSupportedException: Failed to convert property value of type 'com.ibm.db2.jcc.DB2ConnectionPoolDataSource' to required type 'javax.sql.DataSource' for property 'dataSource'; nested exception is java.lang.IllegalStateException: Cannot convert value of type [com.ibm.db2.jcc.DB2ConnectionPoolDataSource] to required type [javax.sql.DataSource] for property 'dataSource': no matching editors or conversion strategy found
        at org.springframework.beans.BeanWrapperImpl.convertIfNecessary(BeanWrapperImpl.java:485)
        at org.springframework.beans.BeanWrapperImpl.convertForProperty(BeanWrapperImpl.java:516)
        at org.springframework.beans.BeanWrapperImpl.convertForProperty(BeanWrapperImpl.java:510)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.convertForProperty(AbstractAutowireCapableBeanFactory.java:1406)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAutowireCapableBeanFactory.java:1365)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1118)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:517)
        ... 27 more
    Caused by: java.lang.IllegalStateException: Cannot convert value of type [com.ibm.db2.jcc.DB2ConnectionPoolDataSource] to required type [javax.sql.DataSource] for property 'dataSource': no matching editors or conversion strategy found
        at org.springframework.beans.TypeConverterDelegate.convertIfNecessary(TypeConverterDelegate.java:241)
        at org.springframework.beans.BeanWrapperImpl.convertIfNecessary(BeanWrapperImpl.java:470)
        ... 33 more

私は何を間違っていますか?Spring JdbcTemplateのインスタンス化中に接続プールされたデータソースを使用する正しい方法は何ですか?

どんな助けでも大歓迎です。

-SGB

4

2 に答える 2

3

これを読んだことがありますか:http://forum.springsource.org/showthread.php?66142-How-to-use-javax-sql-datasource-with-a-ConnectionPoolDataSource

正しく使用すれば、com.ibm.db2.jcc.DB2DataSource はすでに接続プールであると表示されます。

于 2013-01-18T06:42:06.123 に答える