java - Spring-Batch 复合编写器如何跳过异常

Question

我正在使用 Spring Batch，我的步骤配置如下:

 @Bean
  public Step testStep(
      JdbcCursorItemReader<TestStep> testStageDataReader,
      TestStepProcessor testStepProcessor,
      CompositeItemWriter<Writer> testWriter,
      PlatformTransactionManager transactionManager,
      JobRepository jobRepository) {
    return stepBuilderFactory
        .get("TESTING")
        .<>chunk(100)
        .reader(testStageDataReader)
        .processor(testStepProcessor)
        .writer(testWriter)
        .faultTolerant()
        .skip(DataIntegrityViolationException.class)
        .skipLimit(1)
        .listener(new SkipTestListener())
        .transactionManager(transactionManager)
        .repository(jobRepository)
        .build();
  }

我的复合项目编写器

 @Bean
  public CompositeItemWriter<Writer> testWriter(
      Writer1 writer1,
      Writer2 writer2,
      Writer3 writer3)
      throws Exception {
    List<ItemWriter<? super Writer>> writers = new ArrayList<>();
    writers.add(writer1);
    writers.add(writer2);
    writers.add(writer3);
    CompositeItemWriter<Writer> writers = new CompositeItemWriter<>();
    workingWellDailyMemberAggWriter.setDelegates(writers);
    workingWellDailyMemberAggWriter.afterPropertiesSet();
    return writers;
  }

现在，如果 writer1 上出现 DataIntegrityViolationException，我的跳过监听器将在我进行日志记录时被调用，然后控制将转到下一步

我正在寻找一种将控制权交给当前被跳过的下一个编写器的方法

Answer 1

这种类型的编排需要通过您自己的组合 ItemWriter 来完成。 Spring Batch 没有开箱即用的组件来处理此类单个组件逻辑中的异常。