springboot定时任务示例

好的，以下是一个简单的Spring Boot定时任务示例：

1. 首先，在pom.xml文件中添加以下依赖：

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

2. 在application.properties文件中配置Quartz：

# 配置Quartz
spring.quartz.job-store-type=jdbc
spring.quartz.jdbc.initialize-schema=always
spring.quartz.properties.org.quartz.jobStore.driverDelegateClass=org.quartz.impl.jdbcjobstore.PostgreSQLDelegate

3. 创建一个定时任务执行的方法，比如：

public void executeTask() {
    // 这里编写需要执行的任务逻辑
}

4. 创建一个定时任务配置类，用于配置定时任务的执行时间、触发器等：

@Configuration
public class ScheduleTaskConfig {

    @Autowired
    private JobBuilderFactory jobBuilderFactory;

    @Autowired
    private TriggerBuilderFactory triggerBuilderFactory;

    @Bean
    public JobDetail scheduleTaskDetail() {
        return jobBuilderFactory.get("scheduleTaskDetail")
                .storeDurably()
                .withDescription("定时任务执行方法")
                .withIdentity(new JobKey("scheduleTask"))
                .usingJobData("task", "scheduleTask")
                .build();
    }

    @Bean
    public Trigger scheduleTaskTrigger() {
        SimpleScheduleBuilder scheduleBuilder = SimpleScheduleBuilder.simpleSchedule()
                .withIntervalInSeconds(10) // 定时任务执行的间隔时间
                .repeatForever();

        return triggerBuilderFactory.get("scheduleTaskTrigger")
                .withIdentity(new TriggerKey("scheduleTask"))
                .withSchedule(scheduleBuilder)
                .forJob(scheduleTaskDetail())
                .build();
    }
}

5. 注册定时任务：

@Configuration
public class ScheduleTaskConfig {

    @Autowired
    private JobBuilderFactory jobBuilderFactory;

    @Autowired
    private TriggerBuilderFactory triggerBuilderFactory;

    @Autowired
    private ApplicationContext applicationContext;

    @Bean
    public JobDetail scheduleTaskDetail() {
        return jobBuilderFactory.get("scheduleTaskDetail")
                .storeDurably()
                .withDescription("定时任务执行方法")
                .withIdentity(new JobKey("scheduleTask"))
                .usingJobData("task", "scheduleTask")
                .build();
    }

    @Bean
    public Trigger scheduleTaskTrigger() {
        SimpleScheduleBuilder scheduleBuilder = SimpleScheduleBuilder.simpleSchedule()
                .withIntervalInSeconds(10) // 定时任务执行的间隔时间
                .repeatForever();

        return triggerBuilderFactory.get("scheduleTaskTrigger")
                .withIdentity(new TriggerKey("scheduleTask"))
                .withSchedule(scheduleBuilder)
                .forJob(scheduleTaskDetail())
                .build();
    }

    @Bean
    public Scheduler scheduler() throws SchedulerException {
        SchedulerFactory schedulerFactory = new StdSchedulerFactory();
        Scheduler scheduler = schedulerFactory.getScheduler();

        scheduler.setJobFactory(new SpringBeanJobFactory());
        scheduler.scheduleJob(scheduleTaskDetail(), scheduleTaskTrigger());

        return scheduler;
    }
}

6. 最后，在需要启动定时任务的地方添加以下代码：

@Autowired
private Scheduler scheduler;

@PostConstruct
public void start() throws SchedulerException {
    scheduler.start();
}

这样就完成了一个简单的Spring Boot定时任务示例。