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本文介紹了Spring Batch在異常終止后重啟持久作業的處理方法，對大家解決問題具有一定的參考價值，需要的朋友們下面隨著小編來一起學習吧！

問題描述

我有以下Spring批處理作業配置：

@Configuration
@EnableBatchProcessing
public class JobConfig {

    @Autowired
    private JobBuilderFactory jobBuilderFactory;

    @Autowired
    private StepBuilderFactory stepBuilderFactory;

    @Bean
    public Job job() {
        return jobBuilderFactory.get("job")
                .flow(stepA()).on("FAILED").to(stepC())
                .from(stepA()).on("*").to(stepB()).next(stepC())
                .end().build();
    }

    @Bean
    public Step stepA() {
        return stepBuilderFactory.get("stepA").tasklet(new RandomFailTasket("stepA")).build();
    }

    @Bean
    public Step stepB() {
        return stepBuilderFactory.get("stepB").tasklet(new PrintTextTasklet("stepB")).build();
    }

    @Bean
    public Step stepC() {
        return stepBuilderFactory.get("stepC").tasklet(new PrintTextTasklet("stepC")).build();
    }

}

我使用以下代碼開始作業：

    try {
        Map<String,JobParameter> parameters = new HashMap<>();
        JobParameter ccReportIdParameter = new JobParameter("03061980");
        parameters.put("ccReportId", ccReportIdParameter);

        jobLauncher.run(job, new JobParameters(parameters));
    } catch (JobExecutionAlreadyRunningException | JobRestartException | JobInstanceAlreadyCompleteException
            | JobParametersInvalidException e) {
        e.printStackTrace();
    }

這是我的測試任務：

public class PrintTextTasklet implements Tasklet {

    public PrintTextTasklet() {
    }

    public RepeatStatus execute(StepContribution stepContribution, ChunkContext chunkContext) throws Exception {

        String ccReportId = chunkContext.getStepContext().getStepExecution().getJobParameters().getString("ccReportId");
        System.out.println("ccReportId: " + ccReportId);
        Thread.sleep(60 * 1000);
        return RepeatStatus.FINISHED;
    }

}

我使用H2數據庫作為作業的永久存儲。

在作業執行期間，我將終止我的應用程序。在應用程序重新啟動后，我預計所有未完成的作業都將從終止的步驟繼續執行，但沒有任何反應。

另外，在我的應用程序.properties文件中，我添加了以下屬性：

spring.batch.job.enabled=false

因為我不希望允許Spring Batch自動啟動新的(未終止的)作業。我需要手動啟動所有新作業(應用戶請求)，并在下次應用程序運行后重新啟動所有已完成的作業。

這種情況下如何配置Spring Batch？

更新

當前我正在嘗試使用以下方法重新啟動作業：

public void restartUncompletedJobs() {
        List<String> jobs = jobExplorer.getJobNames();
        for (String job : jobs) {
            Set<JobExecution> runningJobs = jobExplorer.findRunningJobExecutions(job);

            for (JobExecution runningJob : runningJobs) {
                try {
                    jobOperator.restart(runningJob.getId());
                    logger.info("Restarted: " + runningJob);
                } catch (Exception e) {
                    logger.error(e.getMessage(), e);
                }
            }
        }
    }

但失敗，出現以下異常：

org.springframework.batch.core.launch.NoSuchJobException: No job configuration with the name [job] was registered
    at org.springframework.batch.core.configuration.support.MapJobRegistry.getJob(MapJobRegistry.java:66) ~[spring-batch-core-3.0.5.RELEASE.jar:3.0.5.RELEASE]
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_60]
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_60]
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_60]
    at java.lang.reflect.Method.invoke(Method.java:497) ~[na:1.8.0_60]
    at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:302) ~[spring-aop-4.2.0.RELEASE.jar:4.2.0.RELEASE]
    at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:190) ~[spring-aop-4.2.0.RELEASE.jar:4.2.0.RELEASE]
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:157) ~[spring-aop-4.2.0.RELEASE.jar:4.2.0.RELEASE]
    at org.springframework.batch.core.configuration.annotation.SimpleBatchConfiguration$PassthruAdvice.invoke(SimpleBatchConfiguration.java:127) ~[spring-batch-core-3.0.5.RELEASE.jar:3.0.5.RELEASE]
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179) ~[spring-aop-4.2.0.RELEASE.jar:4.2.0.RELEASE]
    at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:207) ~[spring-aop-4.2.0.RELEASE.jar:4.2.0.RELEASE]
    at com.sun.proxy.$Proxy94.getJob(Unknown Source) ~[na:na]
    at org.springframework.batch.core.launch.support.SimpleJobOperator.restart(SimpleJobOperator.java:275) ~[spring-batch-core-3.0.5.RELEASE.jar:3.0.5.RELEASE]
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_60]
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_60]
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_60]
    at java.lang.reflect.Method.invoke(Method.java:497) ~[na:1.8.0_60]
    at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:302) ~[spring-aop-4.2.0.RELEASE.jar:4.2.0.RELEASE]
    at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:201) ~[spring-aop-4.2.0.RELEASE.jar:4.2.0.RELEASE]
    at com.sun.proxy.$Proxy96.restart(Unknown Source) ~[na:na]
    at com.example.domain.api.batch.job.ReportJobServiceImpl.restartUncompletedJobs(ReportJobServiceImpl.java:72) ~[classes/:na]
    at com.example.domain.api.Application.lambda$0(Application.java:46) [classes/:na]
    at org.springframework.boot.SpringApplication.runCommandLineRunners(SpringApplication.java:672) ~[spring-boot-1.2.5.RELEASE.jar:1.2.5.RELEASE]
    at org.springframework.boot.SpringApplication.afterRefresh(SpringApplication.java:690) ~[spring-boot-1.2.5.RELEASE.jar:1.2.5.RELEASE]
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:321) ~[spring-boot-1.2.5.RELEASE.jar:1.2.5.RELEASE]
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:957) ~[spring-boot-1.2.5.RELEASE.jar:1.2.5.RELEASE]
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:946) ~[spring-boot-1.2.5.RELEASE.jar:1.2.5.RELEASE]
    at com.example.domain.api.Application.main(Application.java:53) [classes/:na]

推薦答案

我通過添加以下行使其正常工作

jobRegistry.register(new ReferenceJobFactory(job));

進入restartUncompletedJobs方法

public void restartUncompletedJobs() {
    try {
        jobRegistry.register(new ReferenceJobFactory(job));

        List<String> jobs = jobExplorer.getJobNames();
        for (String job : jobs) {
            Set<JobExecution> runningJobs = jobExplorer.findRunningJobExecutions(job);

            for (JobExecution runningJob : runningJobs) {
                runningJob.setStatus(BatchStatus.FAILED);
                runningJob.setEndTime(new Date());
                jobRepository.update(runningJob);
                jobOperator.restart(runningJob.getId());
                logger.info("Restarted: " + runningJob);
            }
        }
    } catch (Exception e) {
        logger.error(e.getMessage(), e);
    }
}

這篇關于Spring Batch在異常終止后重啟持久作業的文章就介紹到這了，希望我們推薦的答案對大家有所幫助，