在我的应用程序中，我想在scope步骤中创建一些bean。我对entitymanagerfactory有一个问题，它给了我这个错误：org.springframework.beans.factory.beancreationexception:创建名为'scopedtarget.scopedtarget.entitymanagerfactory'的bean时出错：当前线程的作用域'step'不是活动的；如果您打算从单例引用这个bean，请考虑为它定义一个作用域代理；嵌套异常为java.lang.illegalstateexception:没有可用于步骤范围的上下文持有者
下面是我创建bean的方法。

<context:property-placeholder />
<bean id="dataSource"
    class="org.springframework.jdbc.datasource.DriverManagerDataSource" scope="step">
    <aop:scoped-proxy/>
    <property name="driverClassName" value="#{jobExecutionContext.get('batchProperties').getProperty('database.driverClass')}" />
    <property name="url" value="#{jobExecutionContext.get('batchProperties').getProperty('database.url')}" />
    <property name="username" value="#{jobExecutionContext.get('batchProperties').getProperty('database.user')}" />
    <property name="password" value="#{jobExecutionContext.get('batchProperties').getProperty('database.password')}" />
</bean>

<bean id="jpaVendorAdapter"
    class="org.springframework.orm.jpa.vendor.EclipseLinkJpaVendorAdapter" scope="step">
    <aop:scoped-proxy/>
    <property name="databasePlatform"
        value="org.eclipse.persistence.platform.database.PostgreSQLPlatform" />
    <property name="generateDdl" value="false" />
    <property name="showSql" value="true" />
</bean>

aop:scoped-proxy/

<bean id="stepScope" class="org.springframework.batch.core.scope.StepScope">
    <property name="autoProxy" value="true" />
</bean>

<batch:job id="jobAccountDemo3456111" job-repository="jobRepository"
    restartable="true">
    <batch:step id="jobAccountDemo3456111.step1" parent="abstractParentStep">

        <batch:tasklet>
        <batch:listeners>
            <batch:listener ref="loadPropertiesListener" />
        </batch:listeners>
            <batch:chunk reader="importAccountJobResourceReader" />
        </batch:tasklet>
    </batch:step>
</batch:job>

  <bean id="loadPropertiesListener" class="com.kmse.hicp.bof.batch.preset.gen.jpa.imports.PropertyLoaderJobExecutionListener" scope="step">
    <property name="pfb">
        <bean class="org.springframework.beans.factory.config.PropertiesFactoryBean">
            <property name="location" value="file:#{jobParameters['myfile']}" />
        </bean>
    </property>
 </bean>

有办法解决这个问题吗