Spring Data Flow在启动时覆盖作业参数

时间:2018-04-04 14:14:20

标签: spring spring-batch spring-cloud-dataflow spring-cloud-task

我目前在Spring Cloud Data Flow中遇到了我的任务调用问题。

我有一个在SCDF上注册的Spring Batch(包含单任务程序步骤作业)应用程序和基于此应用程序的任务定义。在我第一次启动此任务时,我使用了几个作业参数/参数。由于我现在知道的原因,我后来的所有启动都是通过我使用的第一组来覆盖它们的参数。

我正在使用SCDF 1.4.0 + MSSQL数据库,但使用SCDF 1.3.2 + H2或MSSQL也会发生同样的行为。

BatchConfig.java

    @Configuration
    public class BatchConfig {

        @Autowired
        TaskletStep taskletStep;

        @Autowired
        public JobBuilderFactory jobBuilderFactory;

        @Autowired
        public StepBuilderFactory stepBuilderFactory;


        @Bean
        public Step step1() {
            return stepBuilderFactory.get("step1")
                    .tasklet(taskletStep)
                    .build();
        }

        @Bean
        public Job job() throws Exception {
            return jobBuilderFactory.get("job")
                    .incrementer(new RunIdIncrementer())
                    .start(step1())
                    .build();
        }
}

TaskletStep.java:

@Configuration
@StepScope
public class TaskletStep  implements Tasklet{


    @Value("#{jobParameters['filePath']}")
    private String filePath;

    @Value("#{jobParameters['informante']}")
    private String informante;

    @Autowired
    RemessaParser remessaParserService;

    @Override
    public RepeatStatus execute(StepContribution contribution, ChunkContext chunkContext) throws Exception {
        GICLogger.info("Recebido job com path: " + filePath + " para o informante "+ informante);
        try{
            Path remessa = Paths.get(filePath);
            if(Files.exists(remessa)){
                String idRemessa = remessaParserService.remessaReader(remessa, informante);
                GICLogger.info("### TaskletStep:" + idRemessa + " é o ID da Remessa!");
                return RepeatStatus.FINISHED;
            }else{
                GICLogger.error("Não foi possível encontrar a remessa em "+filePath);
            }
        }catch(Exception e){
            e.printStackTrace();
        }
        return RepeatStatus.FINISHED;
    }
}

我的启动命令:

dataflow> task launch negTask --arguments "filePath=/tmp/jars/remessa.txt informante=CaixaB --spring.cloud.task.closecontext_enable=false"

应用程序日志:

  

2018-04-04 13:33:28 [主要] INFO c.b.g.n.BatchNegativacaoApp - 已开始    BatchNegativacaoApp在13.938秒(JVM运行14.599)

     

2018-04-04 13:33:28 [主要] INFO    o.s.b.a.b.JobLauncherCommandLineRunner - 运行默认命令行    with:[filePath = / tmp / jars / remessa.txt,informante = Caixa,    --spring.cloud.task.closecontext_enable = false, - spring.cloud.task.executionid = 17]

     

2018-04-04 13:33:28 [main] INFO o.s.b.c.l.support.SimpleJobLauncher - Job:[SimpleJob:[name = job]]使用以下参数启动:    [{文件路径= /家庭/恩里科/ PROJETOS / GIC / JAVA / remessa.txt,    -spring.cloud.task.executionid = 8,informante = Caixa,-spring.cloud.task.closecontext_enable = false,run.id = 12,time = 1522842134819}]

你们有没有想过它为什么会发生?

感谢您的关注和任何意见!

祝你好运, 恩里科

1 个答案:

答案 0 :(得分:2)

Enrico boa tarde,tive um problema semelhante,resolvi da seguinte forma。

@Bean
@Qualifier("load")
public Job load(JobCompletionNotificationListener listener, Step step1, 
@Qualifier("stepValidation") Step stepValidation) {
    return jobBuilderFactory.get("load")
            .incrementer(new SampleIncrementer())
            .listener(listener)
            .flow(stepValidation)
            .next(step1)
            .end().build();
}

public class SampleIncrementer implements JobParametersIncrementer {

    public JobParameters getNext(JobParameters parameters) {
        if (parameters==null || parameters.isEmpty()) {
            return new JobParametersBuilder().addLong("run.id", 1L).toJobParameters();
        }

        long id = parameters.getLong("run.id",1L) + 1;
        return new JobParametersBuilder().addLong("run.id", id)
            .toJobParameters();
    }
}