1.當我們不知道程式怎麼跑的時候是十分可怕的，所有對於定時任務，我們需要把每一次的執行細節，傳入的引數，執行的結果等儲存到資料庫中。那麼怎樣儲存那。我這裡給出一個方案。springbatch。

2.專案基礎springboot，maven，druid。

(1)maven中引入jar：

<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-batch</artifactId>
</dependency>
 

@Configuration
@EnableBatchProcessing
@ComponentScan(basePackageClasses = DefaultBatchConfigurer.class)
public class ShopJobConfig {

	@Autowired
	private JobBuilderFactory jobs;

	@Autowired
	private StepBuilderFactory steps;

	@Autowired
	private ShopTask shopTask;

	@Bean
	public Job job(Step step1) {
		return jobs.get("shopJob").incrementer(new RunIdIncrementer()).start(step1).build();
	}

	@Bean
	public Step Step1() {
		MethodInvokingTaskletAdapter adapter = new MethodInvokingTaskletAdapter();
		adapter.setTargetObject(shopTask);
		adapter.setTargetMethod("doTask");
		return steps.get("shopJobStep1").tasklet(adapter).build();
	}

}
 

(2)配置一個job，來執行我們的任務

@Component
public class ShopTaskImpl implements ShopTask{
	@Override
	public void doTask() {
		System.out.println("task execute");
	}
}

(3)配置一個定時任務來執行：

@Component
public class ScheduledTasks {
	
	@Autowired
	private JobLauncher jobLauncher;
	@Autowired
	private Job job;
	
	@Scheduled(cron="0/5 * * * * * ")
	public void showCurrentTime() throws Exception{
		System.out.println(1);
		Map<String, JobParameter> param = new HashMap<String, JobParameter>();
		param.put("startTime", new JobParameter(new Date()));
		jobLauncher.run(job, new JobParameters(param));
		System.out.println(1);
	}
}
 

(4)檢視資料庫：

spring.batch.job.enabled=false