我有以下彈簧批處理作業配置。有一個讀者將一個細節傳遞給具有兩個特定作者的複合作家。兩個編寫者都共享一個共同的父代,並且需要爲它們執行的INSERT操作使用相同的JobId。Spring批處理:無法找到字段或屬性'stepExecutionContext'
<bean id="job" parent="simpleJob">
<property name="steps">
<list>
<bean parent="simpleStep">
<property name="itemReader" ref="policyReader"/>
<property name="itemWriter" ref="stagingCompositeWriter"/>
</bean>
</list>
</property>
</bean>
<bean id="stagingCompositeWriter" class="org.springframework.batch.item.support.CompositeItemWriter">
<property name="delegates">
<list>
<ref bean="stagingLoadWriter"/>
<ref bean="stagingPolicyWriter"/>
</list>
</property>
</bean>
<bean id="abstractStagingWriter" class="a.b.c.AbstractStagingWriter" abstract="true">
<property name="stepExecution" value="#{stepExecutionContext}"/>
<property name="hedgingStagingDataSource" ref="hedgingStagingDataSource"/>
</bean>
<bean id="stagingLoadWriter" class="a.b.c.StagingLoadWriter" parent="abstractStagingWriter"/>
<bean id="stagingPolicyWriter" class="a.b.c.StagingPolicyWriter" parent="abstractStagingWriter"/>
,當我運行我的代碼,我收到以下錯誤
Caused by: org.springframework.expression.spel.SpelEvaluationException: EL1008E:(pos 0): Field or property 'stepExecutionContext' cannot be found on object of type 'org.springframework.beans.factory.config.BeanExpressionContext'
at org.springframework.expression.spel.ast.PropertyOrFieldReference.readProperty(PropertyOrFieldReference.java:208)
at org.springframework.expression.spel.ast.PropertyOrFieldReference.getValueInternal(PropertyOrFieldReference.java:72)
at org.springframework.expression.spel.ast.SpelNodeImpl.getValue(SpelNodeImpl.java:93)
at org.springframework.expression.spel.standard.SpelExpression.getValue(SpelExpression.java:88)
at org.springframework.context.expression.StandardBeanExpressionResolver.evaluate(StandardBeanExpressionResolver.java:139)
我已經嘗試設置範圍=在不同地方,但都無濟於事「臺階」。有什麼建議麼?
,你可以嘗試用$ {} stepExecutionContext」 –
替換#{} stepExecutionContext不這麼認爲 - 美元符號會告訴背景下尋找名爲「屬性字段stepExecutionContext '我知道它不存在 – emeraldjava
我的假設:你不能直接連接stepExecutionContext,所以使用StepListener。否則嘗試在所有* Writer bean中放置scope =「step」 –