Question

我有一个带有决策程序的简单批处理作业。决策器实现仅将错误添加到列表中，然后返回原始的FlowExecutionStatus。解析器失败并退出而不是失败并执行决策步骤。为什么？（我知道没有调用ErrorHandler，因为输出永远不会包含记录器输出“ in decider asdf ”。另外，调试xml的最佳方法是什么？非常感谢任何帮助。

<batch:job id="testDecider">
    <batch:step id="testme" next="testerDecider">
        <batch:tasklet>
            <batch:chunk reader="csvSLHistoryFileReader"
                processor="stationSendStatsCalculator" skip-limit="5" commit-interval="10"
                writer="noOpWriter">
                <batch:skippable-exception-classes>
                    <batch:include class="org.springframework.batch.item.file.FlatFileParseException"/>
                </batch:skippable-exception-classes>
            </batch:chunk>
        </batch:tasklet>
    </batch:step>
    <!-- this commit interval can be 1 because all the input from previous step will be completed and this step will 
    iterate through the created to-from list -->
    <batch:step id="doTallies">
        <batch:tasklet>
            <batch:chunk reader="stationSendCountsListReader"
                processor="passThrough" commit-interval="100000"
                writer="stationSubtotalsFileWriter">
            </batch:chunk>
        </batch:tasklet>
    </batch:step>
    <batch:step id="tryTesterInput">
        <batch:tasklet>
            <batch:chunk reader="csvSSHistoryFileReader"
                processor="stationSendStatsCalculator" skip-limit="5" commit-interval="10"
                writer="noOpWriter">
                <batch:skippable-exception-classes>
                    <batch:include class="org.springframework.batch.item.file.FlatFileParseException"/>
                </batch:skippable-exception-classes>
            </batch:chunk>
        </batch:tasklet>
    </batch:step>
    <batch:decision id="testerDecider" decider="errorHandler">
        <batch:next on="FAILED" to="tryTesterInput"/>
        <batch:next on="*" to="doTallies"/>
    </batch:decision>
</batch:job>

错误处理程序：

public class ErrorHandler implements JobExecutionDecider {
@Resource List<String> errorsList;
private final Log logger = LogFactory.getLog(getClass());
private String badInput = "none";
private int newErrors = 0;

/* (non-Javadoc)
 * @see org.springframework.batch.core.job.flow.JobExecutionDecider#decide(org.springframework.batch.core.JobExecution, org.springframework.batch.core.StepExecution)
 */
@Override
public FlowExecutionStatus decide(JobExecution jobExecution,
        StepExecution stepExecution) {
    logger.info("in decider asdf");
    if (stepExecution.getExitStatus().getExitCode().equals("ERRORS")){
        if (errorsList.size() > 0){
            newErrors = errorsList.size();
            logger.info("Errors encountered in previous step: "+ errorsList.size());
            return new FlowExecutionStatus ("FAILED");
        }
    }   
    return new FlowExecutionStatus(jobExecution.getStatus().toString());
}

}

例外：

    12:47:37,180 [main] INFO  ProcessStatisticsTasklet  - constructor...
12:47:37,529 [main] INFO  RequestsListReader  - constructing requestsListReader
12:47:37,662 [main] INFO  SimpleJobLauncher  - Job: [FlowJob:     [name=testDecider]] launched with the following parameters: [{csvHistoryFileName=input/ssXactHistory.csv, csvStationsProfileName=input/bostonStationsProfile.csv, RequestGenerationFileName=input/bostonRequestGeneration.xlsx}]
12:47:37,680 [main] INFO  SimpleStepHandler  - Executing step: [testme]
12:47:37,759 [main] ERROR AbstractStep  - Encountered an error executing step testme in job testDecider
org.springframework.batch.core.step.skip.SkipLimitExceededException: Skip limit of '5' exceeded
	at org.springframework.batch.core.step.skip.LimitCheckingItemSkipPolicy.shouldSkip(LimitCheckingItemSkipPolicy.java:133)
	at org.springframework.batch.core.step.skip.ExceptionClassifierSkipPolicy.shouldSkip(ExceptionClassifierSkipPolicy.java:70)
	at org.springframework.batch.core.step.item.FaultTolerantChunkProvider.shouldSkip(FaultTolerantChunkProvider.java:134)
	at org.springframework.batch.core.step.item.FaultTolerantChunkProvider.read(FaultTolerantChunkProvider.java:91)
	at org.springframework.batch.core.step.item.SimpleChunkProvider$1.doInIteration(SimpleChunkProvider.java:114)
	at org.springframework.batch.repeat.support.RepeatTemplate.getNextResult(RepeatTemplate.java:368)
	at org.springframework.batch.repeat.support.RepeatTemplate.executeInternal(RepeatTemplate.java:215)
	at org.springframework.batch.repeat.support.RepeatTemplate.iterate(RepeatTemplate.java:144)
	at org.springframework.batch.core.step.item.SimpleChunkProvider.provide(SimpleChunkProvider.java:108)
	at org.springframework.batch.core.step.item.ChunkOrientedTasklet.execute(ChunkOrientedTasklet.java:69)
	at org.springframework.batch.core.step.tasklet.TaskletStep$ChunkTransactionCallback.doInTransaction(TaskletStep.java:395)
	at org.springframework.transaction.support.TransactionTemplate.execute(TransactionTemplate.java:130)
	at org.springframework.batch.core.step.tasklet.TaskletStep$2.doInChunkContext(TaskletStep.java:267)
	at org.springframework.batch.core.scope.context.StepContextRepeatCallback.doInIteration(StepContextRepeatCallback.java:77)
	at org.springframework.batch.repeat.support.RepeatTemplate.getNextResult(RepeatTemplate.java:368)
	at org.springframework.batch.repeat.support.RepeatTemplate.executeInternal(RepeatTemplate.java:215)
	at org.springframework.batch.repeat.support.RepeatTemplate.iterate(RepeatTemplate.java:144)
	at org.springframework.batch.core.step.tasklet.TaskletStep.doExecute(TaskletStep.java:253)
	at org.springframework.batch.core.step.AbstractStep.execute(AbstractStep.java:195)
	at org.springframework.batch.core.job.SimpleStepHandler.handleStep(SimpleStepHandler.java:141)
	at org.springframework.batch.core.job.flow.JobFlowExecutor.executeStep(JobFlowExecutor.java:64)
	at org.springframework.batch.core.job.flow.support.state.StepState.handle(StepState.java:60)
	at org.springframework.batch.core.job.flow.support.SimpleFlow.resume(SimpleFlow.java:151)
	at org.springframework.batch.core.job.flow.support.SimpleFlow.start(SimpleFlow.java:130)
	at org.springframework.batch.core.job.flow.FlowJob.doExecute(FlowJob.java:135)
	at org.springframework.batch.core.job.AbstractJob.execute(AbstractJob.java:301)
	at org.springframework.batch.core.launch.support.SimpleJobLauncher$1.run(SimpleJobLauncher.java:134)
	at org.springframework.core.task.SyncTaskExecutor.execute(SyncTaskExecutor.java:48)
	at org.springframework.batch.core.launch.support.SimpleJobLauncher.run(SimpleJobLauncher.java:127)
	at org.springframework.batch.core.launch.support.CommandLineJobRunner.start(CommandLineJobRunner.java:351)
	at org.springframework.batch.core.launch.support.CommandLineJobRunner.main(CommandLineJobRunner.java:577)
Caused by: org.springframework.batch.item.file.FlatFileParseException: Parsing error at line: 6 in resource=[URL [file:input/ssXactHistory.csv]], input=[12/07/14 19:58:54,12/07/14 19:58:54,12/07/14 20:00:02,0,0,12,54,67,19,0,1,0,1,,,,[157] 20:00:02 Empty Zone:16  Station:165 YK L/D ===> Interzone:110 ===> Zone:5  Station:53 NS 5 W ,Station:165 YK L/D,Station:53 NS 5 W,None,None,,,Zone:16 ,Zone:5 ,]

Answer 1

异常非常明显，跳过限制为5已被命中，这将导致步骤失败。将<step ... next="someStep">表示法用于下一个状态时，只有在步骤成功完成时才会执行下一个状态（在您的情况下不是这样）。因此，您的决定不会执行。相反，您需要使用定义去处的较长版本：

<step>
 ...
  <next on="FAILED" to="testerDecider"/>
</step>

Spring Batch决策程序没有执行

1 个答案: