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Spring Batch:OnSkipInWrite两次打印日志???怎么样 ?

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我在执行 spring 批时遇到了一个奇怪的情况 . 我已将我的作业步骤执行配置为使用“skippable-exception-classes”

<step id="prepareFileStep" next="fillRecordsCounterStep">
<tasklet>
   <chunk reader="stagingIdReader" writer="customerIdRecordCompWriter" commit-interval="50" skip-limit="200">
    <streams>
         <stream ref="flatFileRecordWriter" />
    </streams>
    <skippable-exception-classes>
         <include class="java.lang.Exception" /> 
    </skippable-exception-classes>
</chunk>
<listeners>
         <listener ref="prepareFlatFileSkipListener" />
    <listener ref="prepareFlatFileStepListener" />
</listeners>
</tasklet>

我的onSkipInWrite()实现为:

@OnSkipInWrite
public void onSkipInWrite(Object item, Throwable exception) {
    AppLog.warn(AppConstants.CALLER, "Skipping Customer Id:"+ item.getCustomer().getCustomerId()+"\n" + exception.toString());
}

我想知道为什么日志文件已经两次打印跳过的项目,当我调试它只执行一次?请建议我修复朋友...

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