java - Camel + MyBatis + Apache Aries

Question

我正在遵循位于:Camel MyBatis Integration Guide 的设置指南。我正在使用服务混合 5.0.1。我使用了 features-install spring-mybatis 来引入 3.2.4.RELEASE。我的 SqlMapConfig 文件仅包含有关 typeHandlers 和 typeAliases 的信息。

当我启动服务组合然后启动我的应用程序时，我收到以下堆栈跟踪:

org.osgi.service.blueprint.container.ComponentDefinitionException: Errorsetting property: PropertyDescriptor <name: configLocation, getter: null, setter: [class org.mybatis.spring.SqlSessionFactoryBean.setConfigLocation(interface org.springframework.core.io.Resource)]
at org.apache.aries.blueprint.container.BeanRecipe.setProperty(BeanRecipe.java:941)[8:org.apache.aries.blueprint.core:1.4.0]
at org.apache.aries.blueprint.container.BeanRecipe.setProperties(BeanRecipe.java:907)[8:org.apache.aries.blueprint.core:1.4.0]
at org.apache.aries.blueprint.container.BeanRecipe.setProperties(BeanRecipe.java:888)[8:org.apache.aries.blueprint.core:1.4.0]
at org.apache.aries.blueprint.container.BeanRecipe.internalCreate2(BeanRecipe.java:820)[8:org.apache.aries.blueprint.core:1.4.0]
at org.apache.aries.blueprint.container.BeanRecipe.internalCreate(BeanRecipe.java:787)[8:org.apache.aries.blueprint.core:1.4.0]
at org.apache.aries.blueprint.di.AbstractRecipe$1.call(AbstractRecipe.java:79)[8:org.apache.aries.blueprint.core:1.4.0]
at java.util.concurrent.FutureTask.run(FutureTask.java:262)[:1.7.0_45]
at org.apache.aries.blueprint.di.AbstractRecipe.create(AbstractRecipe.java:88)[8:org.apache.aries.blueprint.core:1.4.0]
at org.apache.aries.blueprint.di.RefRecipe.internalCreate(RefRecipe.java:62)[8:org.apache.aries.blueprint.core:1.4.0]
at org.apache.aries.blueprint.di.AbstractRecipe.create(AbstractRecipe.java:106)[8:org.apache.aries.blueprint.core:1.4.0]
at org.apache.aries.blueprint.container.BeanRecipe.setProperty(BeanRecipe.java:933)[8:org.apache.aries.blueprint.core:1.4.0]
at org.apache.aries.blueprint.container.BeanRecipe.setProperties(BeanRecipe.java:907)[8:org.apache.aries.blueprint.core:1.4.0]
at org.apache.aries.blueprint.container.BeanRecipe.setProperties(BeanRecipe.java:888)[8:org.apache.aries.blueprint.core:1.4.0]
at org.apache.aries.blueprint.container.BeanRecipe.internalCreate2(BeanRecipe.java:820)[8:org.apache.aries.blueprint.core:1.4.0]
at org.apache.aries.blueprint.container.BeanRecipe.internalCreate(BeanRecipe.java:787)[8:org.apache.aries.blueprint.core:1.4.0]
at org.apache.aries.blueprint.di.AbstractRecipe$1.call(AbstractRecipe.java:79)[8:org.apache.aries.blueprint.core:1.4.0]
at java.util.concurrent.FutureTask.run(FutureTask.java:262)[:1.7.0_45]
at org.apache.aries.blueprint.di.AbstractRecipe.create(AbstractRecipe.java:88)[8:org.apache.aries.blueprint.core:1.4.0]
at org.apache.aries.blueprint.container.BlueprintRepository.createInstances(BlueprintRepository.java:245)[8:org.apache.aries.blueprint.core:1.4.0]
at org.apache.aries.blueprint.container.BlueprintRepository.createAll(BlueprintRepository.java:183)[8:org.apache.aries.blueprint.core:1.4.0]
at org.apache.aries.blueprint.container.BlueprintContainerImpl.instantiateEagerComponents(BlueprintContainerImpl.java:681)[8:org.apache.aries.blueprint.core:1.4.0]
at org.apache.aries.blueprint.container.BlueprintContainerImpl.doRun(BlueprintContainerImpl.java:378)[8:org.apache.aries.blueprint.core:1.4.0]
at org.apache.aries.blueprint.container.BlueprintContainerImpl.run(BlueprintContainerImpl.java:269)[8:org.apache.aries.blueprint.core:1.4.0]
at org.apache.aries.blueprint.container.BlueprintExtender.createContainer(BlueprintExtender.java:276)[8:org.apache.aries.blueprint.core:1.4.0]
at org.apache.aries.blueprint.container.BlueprintExtender.createContainer(BlueprintExtender.java:245)[8:org.apache.aries.blueprint.core:1.4.0]
at org.apache.aries.blueprint.container.BlueprintExtender.modifiedBundle(BlueprintExtender.java:235)[8:org.apache.aries.blueprint.core:1.4.0]
at org.apache.aries.util.tracker.hook.BundleHookBundleTracker$Tracked.customizerModified(BundleHookBundleTracker.java:500)[11:org.apache.aries.util:1.1.0]
at org.apache.aries.util.tracker.hook.BundleHookBundleTracker$Tracked.customizerModified(BundleHookBundleTracker.java:433)[11:org.apache.aries.util:1.1.0]
at org.apache.aries.util.tracker.hook.BundleHookBundleTracker$AbstractTracked.track(BundleHookBundleTracker.java:725)[11:org.apache.aries.util:1.1.0]
at org.apache.aries.util.tracker.hook.BundleHookBundleTracker$Tracked.bundleChanged(BundleHookBundleTracker.java:463)[11:org.apache.aries.util:1.1.0]
at org.apache.aries.util.tracker.hook.BundleHookBundleTracker$BundleEventHook.event(BundleHookBundleTracker.java:422)[11:org.apache.aries.util:1.1.0]
at org.apache.felix.framework.util.SecureAction.invokeBundleEventHook(SecureAction.java:1103)[org.apache.felix.framework-4.0.3.jar:]
at org.apache.felix.framework.util.EventDispatcher.createWhitelistFromHooks(EventDispatcher.java:695)[org.apache.felix.framework-4.0.3.jar:]
at org.apache.felix.framework.util.EventDispatcher.fireBundleEvent(EventDispatcher.java:483)[org.apache.felix.framework-4.0.3.jar:]
at org.apache.felix.framework.Felix.fireBundleEvent(Felix.java:4244)[org.apache.felix.framework-4.0.3.jar:]
at org.apache.felix.framework.Felix.startBundle(Felix.java:1923)[org.apache.felix.framework-4.0.3.jar:]
at org.apache.felix.framework.BundleImpl.start(BundleImpl.java:944)[org.apache.felix.framework-4.0.3.jar:]
at org.apache.felix.framework.BundleImpl.start(BundleImpl.java:931)[org.apache.felix.framework-4.0.3.jar:]
at org.apache.karaf.shell.osgi.StartBundle.doExecute(StartBundle.java:37)[39:org.apache.karaf.shell.osgi:2.3.4]
at org.apache.karaf.shell.osgi.BundlesCommand.doExecute(BundlesCommand.java:37)[39:org.apache.karaf.shell.osgi:2.3.4]
at org.apache.karaf.shell.console.OsgiCommandSupport.execute(OsgiCommandSupport.java:38)[15:org.apache.karaf.shell.console:2.3.4]
at org.apache.felix.gogo.commands.basic.AbstractCommand.execute(AbstractCommand.java:35)[15:org.apache.karaf.shell.console:2.3.4]
at org.apache.felix.gogo.runtime.CommandProxy.execute(CommandProxy.java:78)[15:org.apache.karaf.shell.console:2.3.4]
at org.apache.felix.gogo.runtime.Closure.executeCmd(Closure.java:474)[15:org.apache.karaf.shell.console:2.3.4]
at org.apache.felix.gogo.runtime.Closure.executeStatement(Closure.java:400)[15:org.apache.karaf.shell.console:2.3.4]
at org.apache.felix.gogo.runtime.Pipe.run(Pipe.java:108)[15:org.apache.karaf.shell.console:2.3.4]
at org.apache.felix.gogo.runtime.Closure.execute(Closure.java:183)[15:org.apache.karaf.shell.console:2.3.4]
at org.apache.felix.gogo.runtime.Closure.execute(Closure.java:120)[15:org.apache.karaf.shell.console:2.3.4]
at org.apache.felix.gogo.runtime.CommandSessionImpl.execute(CommandSessionImpl.java:89)[15:org.apache.karaf.shell.console:2.3.4]
at org.apache.karaf.shell.console.jline.Console.run(Console.java:183)[15:org.apache.karaf.shell.console:2.3.4]
at org.apache.karaf.shell.console.jline.DelayedStarted.run(DelayedStarted.java:79)[15:org.apache.karaf.shell.console:2.3.4]
*Caused by: java.lang.Exception: Unable to convert value /META-INF/SqlMapConfig.xml to type interface org.springframework.core.io.Resource. Type interface org.springframework.core.io.Resource is an interface or an abstract class* 
at org.apache.aries.blueprint.container.AggregateConverter.createObject(AggregateConverter.java:310)[8:org.apache.aries.blueprint.core:1.4.0]
at org.apache.aries.blueprint.container.AggregateConverter.convertFromString(AggregateConverter.java:304)[8:org.apache.aries.blueprint.core:1.4.0]
at org.apache.aries.blueprint.container.AggregateConverter.convert(AggregateConverter.java:174)[8:org.apache.aries.blueprint.core:1.4.0]
at org.apache.aries.blueprint.container.BlueprintRepository.convert(BlueprintRepository.java:402)[8:org.apache.aries.blueprint.core:1.4.0]
at org.apache.aries.blueprint.utils.ReflectionUtils$PropertyDescriptor.convert(ReflectionUtils.java:394)[8:org.apache.aries.blueprint.core:1.4.0]
at org.apache.aries.blueprint.utils.ReflectionUtils$MethodPropertyDescriptor.internalSet(ReflectionUtils.java:628)[8:org.apache.aries.blueprint.core:1.4.0]
at org.apache.aries.blueprint.utils.ReflectionUtils$PropertyDescriptor.set(ReflectionUtils.java:378)[8:org.apache.aries.blueprint.core:1.4.0]
at org.apache.aries.blueprint.container.BeanRecipe.setProperty(BeanRecipe.java:939)[8:org.apache.aries.blueprint.core:1.4.0]

...还有 50 个

我的Bean定义如下:

<bean id="dataSource" class="org.springframework.jdbc.datasource.TransactionAwareDataSourceProxy">
  <argument>
    <bean class="com.mchange.v2.c3p0.ComboPooledDataSource">
      <property name="driverClass" value="oracle.jdbc.OracleDriver"/>
      <property name="jdbcUrl" value="jdbc:oracle:thin:@intersting-ip:port:schema"/>
      <property name="user" value="user"/>
      <property name="password" value="password"/>
    </bean>
  </argument>
</bean>

<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
  <property name="dataSource" ref="dataSource"/>
  <property name="configLocation" value="/META-INF/SqlMapConfig.xml"/>
  <property name="mapperLocations" value="classpath*:META-INF/mappers/**/*.xml"/>
</bean>

<bean id="mybatis" class="org.apache.camel.component.mybatis.MyBatisComponent">
  <property name="sqlSessionFactory" ref="sqlSessionFactory" />
</bean>

更新配置和新错误

更新配置:

<bean id="myBatis" class="org.apache.camel.component.mybatis.MyBatisComponent">
    <property name="sqlSessionFactory" ref="sqlSessionFactory" />
</bean>

<bean id="mybatisConfig" class="org.springframework.core.io.ClassPathResource">
    <argument value="classpath*:META-INF/SqlMapConfig.xml" />
</bean>

<bean id="dataSource" class="org.springframework.jdbc.datasource.TransactionAwareDataSourceProxy">
    <argument>
        <bean class="com.mchange.v2.c3p0.ComboPooledDataSource">
            <property name="driverClass" value="oracle.jdbc.OracleDriver"/>
            <property name="jdbcUrl" value="jdbc:oracle:thin:@intersting-ip:port:schema"/>
            <property name="user" value="user"/>
            <property name="password" value="password"/>
        </bean>
    </argument>
</bean>

<!-- Without this, the creation of myBatis will bomb out stating that org.mybatis.spring.SqlSessionFactoryBean is not an instance of org.apache.ibatis.session.SqlSessionFactory -->
<bean id="sqlSessionFactory" class="org.apache.ibatis.session.SqlSessionFactory" factory-ref="sqlSessionFactoryBean" factory-method="getObject" />

<bean id="sqlSessionFactoryBean" class="org.mybatis.spring.SqlSessionFactoryBean">
    <property name="dataSource" ref="cctvDataSource"/>
    <property name="configLocation" ref="mybatisConfig"/>
    <property name="mapperLocations">
        <array value-type="org.springframework.core.io.Resource">
            <bean class="org.springframework.core.io.ClassPathResource">
                <argument value="classpath*:META-INF/mappers/**/*.xml" />
            </bean>
        </array>
    </property>
</bean>

更新错误

2014-08-06 10:46:20,824 | ERROR | mix\5.0.1/deploy | BlueprintContainerImpl | ?? | 7 - org.apache.aries.blueprint.core - 1.4.0 | Unable to start blueprint container for bundle project org.osgi.service.blueprint.container.ComponentDefinitionException: Error when instantiating bean sqlSessionFactory of class interface org.apache.ibatis.session.SqlSessionFactory
....
Caused by: java.io.FileNotFoundException: class path resource [classpath*:META-INF/SqlCookConfig.xml] cannot be opened because it does not exist
  at org.springframework.core.io.ClassPathResource.getInputStream(ClassPathResource.java:157)
  at org.mybatis.spring.SqlSessionFactoryBean.buildSqlSessionFactory(SqlSessionFactoryBean.java:358)
 at org.mybatis.spring.SqlSessionFactoryBean.afterPropertiesSet(SqlSessio

nFactoryBean.java:340)

Answer 1

您使用的指南适用于 Spring ，而不是 Aries blueprint这就是问题的主要根源。 mybatis-spring用于集成，它使用 spring 特定的东西。

问题出在 SqlSessionFactoryBean 的 configLocation 属性上。它应该是 spring org.springframework.core.io.Resource。如果您use prefix，Spring 可以自动将字符串转换为Resource给予提示。 Aries 对 spring 一无所知，也没有从 String 到 spring Resource 的内置转换器。

有两种方法可以解决这个问题:

1. 将 Resource 实现 bean 注入(inject)到 SqlSessionFactoryBean 而不是字符串
2. 实现您自己的org.osgi.service.blueprint.container.Converter，它将接受字符串并返回Resource实现。转换器应该作为常规 bean 添加到上下文中，并且 Aries 将在需要时使用它进行转换。在这种情况下，SqlSessionFactoryBean 的定义不会更改。

在这两种情况下，您都可以使用org.springframework.core.io.ClassPathResource或自己实现Resource。