Question

我有一个春季批处理工作，需要读取平面文件并进行处理，源平面文件具有主体和页脚。对于正文部分，我需要从对象的平面文件中读取一行并进行处理，但是对于页脚，我仅需要验证信息，因此不需要处理器。我收到一个错误，指出对象无法强制转换，我理解该错误，这是因为页脚未读入与正文相同的对象，但找不到解决方案。这是我的工作定义：

<batch:job>
       <batch:step id="readDetailStep">
            <batch:tasklet transaction-manager="transactionManager">
                <batch:chunk reader="flatFileItemReader" processor="processor"
                    writer="writer" commit-interval="1000" skip-limit="1">
                    <batch:skippable-exception-classes>
                    <batch:include class="org.springframework.batch.item.file.FlatFileParseException"/>


                    </batch:skippable-exception-classes>

                </batch:chunk>
            </batch:tasklet>
        </batch:step>
    </batch:job>


 <bean id="detailLineTokenizer"
        class="org.springframework.batch.item.file.transform.DelimitedLineTokenizer">

        <property name="delimiter" value="," />
    </bean>

    <bean id="footerLineTokenizer"
        class="org.springframework.batch.item.file.transform.DelimitedLineTokenizer">

        <property name="delimiter" value="," />
    </bean>

    <bean id="detailFieldSetMapper"
        class="ben.MyMapper">


    </bean>

    <bean id="footerFieldSetMapper"
        class="ben.FooterMapper" />

    <!-- composite writer -->



    <bean id="writer" class="org.springframework.batch.item.support.CompositeItemWriter">

      <property name="delegates">
        <list>
          <bean id="writer1" class="ben.MyWriter" />
        </list>
      </property>
    </bean>

<bean id="processor" class="ben.MyProcessor" />

CompositeReader，带处理器的CompositeiteamWriter

0 个答案: