Spring Boot如何运行批处理作业 [英] How Spring Boot run batch jobs

问题描述

我跟着此示例 for Spring Batch with Boot。

运行main方法时，作业是执行。
这种方式我无法弄清楚如何控制作业执行。例如，您如何安排作业，或访问作业执行或设置作业参数。

我试图注册我自己的JobLauncher

  @Bean 
 public JobLauncher jobLauncher（JobRepository jobRepo）{
 SimpleJobLauncher simpleJobLauncher = new SimpleJobLauncher（）; 
 simpleJobLauncher.setJobRepository（jobRepo）; 
返回simpleJobLauncher; 
} 
  

但是当我尝试在main方法中使用它时：

 公共静态无效的主要（字串[] args）{
 ConfigurableApplicationContext CTX = SpringApplication.run（Application.class，参数）; 
 JobLauncher jobLauncher = ctx.getBean（JobLauncher.class）; 
 //为了便于阅读，请删除try catch 
 jobLauncher.run（ctx.getBean（Job.class），new JobParameters（））; 
} 
  

加载上下文后我再次执行作业 JobInstanceAlreadyCompleteException 当我尝试手动运行它时。
有没有办法防止自动执行作业？

解决方案

可以通过设置来阻止作业执行

  spring.batch.job.enabled = false 
  

$ application.properties中的b
$ b

。或者您可以使用 spring.batch.job.names 它将以逗号分隔的作业名称列表进行运行。

'p>从这里摘自：如何在执行代码时第一次停止弹出批量预定作业？

I followed this sample for Spring Batch with Boot.

When you run the main method the job is executed. This way I can't figure out how one can control the job execution. For example how you schedule a job, or get access to the job execution, or set job parameters.

I tried to register my own JobLauncher

@Bean
public JobLauncher jobLauncher(JobRepository jobRepo){
    SimpleJobLauncher simpleJobLauncher = new SimpleJobLauncher();
    simpleJobLauncher.setJobRepository(jobRepo);
    return simpleJobLauncher;
}

but when I try to use it in the main method:

public static void main(String[] args) {
    ConfigurableApplicationContext ctx = SpringApplication.run(Application.class, args);    
    JobLauncher jobLauncher = ctx.getBean(JobLauncher.class);
    //try catch removed for readability
    jobLauncher.run(ctx.getBean(Job.class), new JobParameters());   
}

The job is again executed when the context is loaded and I got JobInstanceAlreadyCompleteException when I try to run it manually. Is there a way to prevent the automatic job execution?

解决方案

The jobs execution can be prevented by setting

spring.batch.job.enabled=false

in application.properties. Or you can use spring.batch.job.names it takes a comma-delimited list of job names that will be run.

Taken from here: how to stop spring batch scheduled jobs from running at first time when executing the code?

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