Question

我正在研究spring Batch。我在作业执行上下文中将一些参数设置为JobListener beforeStep方法中的键值对。我想在我的bean定义中检索这些参数。但我得到例外。

我在作业定义中配置了此侦听器。

我的beforeJob（）方法就像..

public void beforeJob(JobExecution jobExecution) {
    // TODO Auto-generated method stub
    System.out.println("Before Member Number Import Job");
    log.info("Writing Failed File Header");
    jobExecution.getExecutionContext().put("date", DateUtil.getDateString());
    jobExecution.getExecutionContext().put("fileName", "dummy.txt");
    writeHeader();
}

我用它来设置FlatFileReader bean的资源属性。

<property name="resource" value="file:#{jobExecutionContext['date']}" />

我得到以下异常。

Caused by: org.springframework.expression.spel.SpelEvaluationException: EL1008E:(pos 0): Field or property 'jobExecutionContext' 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.CompoundExpression.getValueInternal(CompoundExpression.java:52)
at org.springframework.expression.spel.ast.SpelNodeImpl.getTypedValue(SpelNodeImpl.java:102)
at org.springframework.expression.spel.standard.SpelExpression.getValue(SpelExpression.java:97)
at org.springframework.expression.common.CompositeStringExpression.getValue(CompositeStringExpression.java:82)
at org.springframework.expression.common.CompositeStringExpression.getValue(CompositeStringExpression.java:1)
at org.springframework.context.expression.StandardBeanExpressionResolver.evaluate(StandardBeanExpressionResolver.java:139)
... 27 more

请建议我如何解决这个问题。在此先感谢

如何在Spring批处理

0 个答案: