quartz定时任务spring boot

Quartz是一种广泛使用的开源任务调度框架，可以轻松地在Java应用程序中实现定期执行任务或计划任务。它提供了很多强大的功能，如支持分布式调度、可靠的执行触发器、动态添加/删除触发器、任务持久化等。

Spring Boot是一款强大的开源框架，能够基于Spring和Spring MVC快速构建Web应用程序，而且能够轻松集成其他开源框架，包括Quartz。

Quartz和Spring Boot的结合使用，可以实现更加高效和可靠的定时任务，同时也能够简化任务的创建和管理。要使用Quartz和Spring Boot，需要在POM文件中添加Quartz和Spring Boot的依赖，然后创建一个带有@Scheduled注释的任务类。

在添加了依赖之后，在配置文件中配置Quartz Scheduler Factory Bean以及Job Detail Bean，用于创建具体的任务。然后通过触发器对象来定义任务运行的时间表，包括任务开始时间、结束时间和频率等等。

最后，在Spring Boot应用程序启动时，Quartz会自动启动并定期执行任务。通过Quartz和Spring Boot的结合，开发者能够轻松实现各种类型的定时任务，并且能够迅速测试和调试任务，以保证系统的稳定性和有效性。

相关问题

使用Quartz2.3.2+spring boot实现数据库持久化存储多个定时任务

好的，我了解了你的问题。要使用Quartz2.3.2和Spring Boot实现数据库持久化存储多个定时任务，你可以按照以下步骤操作：

1. 在Spring Boot项目中添加Quartz2.3.2的依赖包：

<dependency>
    <groupId>org.quartz-scheduler</groupId>
    <artifactId>quartz</artifactId>
    <version>2.3.2</version>
</dependency>

2. 创建一个继承了`org.quartz.impl.jdbcjobstore.PostgreSQLDelegate`的类，用于实现PostgreSQL数据库的存储。

public class PostgreSQLDelegateCustom extends PostgreSQLDelegate {
    private String tablePrefix = "";

    public PostgreSQLDelegateCustom() {
        super();
    }

    @Override
    public void setInstanceName(String schedName) {
        super.setInstanceName(schedName);
        this.tablePrefix = schedName + ".";
    }

    @Override
    public String getSelectNextTriggerToAcquireSql(int maxCount) {
        return "SELECT * FROM " + tablePrefix + "QRTZ_TRIGGERS WHERE " + "TRIGGER_STATE = ? AND NEXT_FIRE_TIME <= ? " + "AND MISFIRE_INSTR IN (" + MisfireInstruction.IGNORE_MISFIRE_POLICY + "," + MisfireInstruction.SMART_POLICY + ") ORDER BY NEXT_FIRE_TIME ASC";
    }

    @Override
    public String getSelectNextMisfiredTriggersInStateSql(Connection conn, String state, long ts) {
        return "SELECT * FROM " + tablePrefix + "QRTZ_TRIGGERS WHERE " + "TRIGGER_STATE = ? AND NEXT_FIRE_TIME <= ? " + "AND MISFIRE_INSTR NOT IN (" + MisfireInstruction.IGNORE_MISFIRE_POLICY + "," + MisfireInstruction.SMART_POLICY + ") ORDER BY NEXT_FIRE_TIME ASC";
    }

    @Override
    public String getSelectPausedTriggerGroupsSql() {
        return "SELECT TRIGGER_GROUP FROM " + tablePrefix + "QRTZ_PAUSED_TRIGGER_GRPS";
    }

    @Override
    public String getSelectPausedTriggerGroupsLikeSql() {
        return "SELECT TRIGGER_GROUP FROM " + tablePrefix + "QRTZ_PAUSED_TRIGGER_GRPS WHERE TRIGGER_GROUP LIKE ?";
    }

    @Override
    public String getSelectFiredTriggersSql(int limit) {
        return "SELECT * FROM " + tablePrefix + "QRTZ_FIRED_TRIGGERS ORDER BY FIRE_TIME ASC LIMIT " + limit;
    }

    @Override
    public String getSelectFiredTriggerSql() {
        return "SELECT * FROM " + tablePrefix + "QRTZ_FIRED_TRIGGERS WHERE ENTRY_ID = ?";
    }

    @Override
    public String getInsertPausedTriggerGroupSql() {
        return "INSERT INTO " + tablePrefix + "QRTZ_PAUSED_TRIGGER_GRPS (TRIGGER_GROUP) VALUES (?)";
    }

    @Override
    public String getDeletePausedTriggerGroupSql() {
        return "DELETE FROM " + tablePrefix + "QRTZ_PAUSED_TRIGGER_GRPS WHERE TRIGGER_GROUP = ?";
    }

    @Override
    public String getDeleteAllPausedTriggerGroupsSql() {
        return "DELETE FROM " + tablePrefix + "QRTZ_PAUSED_TRIGGER_GRPS";
    }

    @Override
    public String getInsertFiredTriggerSql() {
        return "INSERT INTO " + tablePrefix + "QRTZ_FIRED_TRIGGERS (ENTRY_ID, " + "TRIGGER_NAME, TRIGGER_GROUP, " + "IS_VOLATILE, INSTANCE_NAME, " + "FIRED_TIME, SCHED_TIME, " + "PRIORITY, STATE, JOB_NAME, " + "JOB_GROUP, IS_STATEFUL, " + "REQUESTS_RECOVERY, " + "MISFIRE_INSTR) " + "VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)";
    }

    @Override
    public String getUpdateFiredTriggerSql() {
        return "UPDATE " + tablePrefix + "QRTZ_FIRED_TRIGGERS SET " + "FIRED_TIME = ?, SCHED_TIME = ?, STATE = ? " + "WHERE ENTRY_ID = ?";
    }

    @Override
    public String getDeleteFiredTriggerSql() {
        return "DELETE FROM " + tablePrefix + "QRTZ_FIRED_TRIGGERS WHERE ENTRY_ID = ?";
    }

    @Override
    public String getDeleteFiredTriggersSql(String instanceId) {
        return "DELETE FROM " + tablePrefix + "QRTZ_FIRED_TRIGGERS WHERE INSTANCE_NAME = ?";
    }

    @Override
    public String getSelectInstancesFiredTriggerCountSql() {
        return "SELECT COUNT(*) FROM " + tablePrefix + "QRTZ_FIRED_TRIGGERS WHERE INSTANCE_NAME = ?";
    }
}

3. 在Spring Boot配置文件中配置Quartz的相关参数：

spring:
  quartz:
    job-store-type: jdbc
    properties:
      org:
        quartz:
          scheduler:
            instanceId: AUTO
            instanceName: my-scheduler
          jobStore:
            driverDelegateClass: com.example.PostgreSQLDelegateCustom
            useProperties: false
            isClustered: false
            dataSource: myDataSource
            tablePrefix: QRTZ_
          threadPool:
            threadCount: 10
          plugin:
            shutdownhook:
              class: org.quartz.plugins.management.ShutdownHookPlugin
              cleanShutdown: true
            jobHistory:
              class: org.quartz.plugins.history.LoggingJobHistoryPlugin
              jobHistoryLogLevel: INFO

4. 创建一个继承了`org.quartz.Job`的类，用于定义任务的具体逻辑：

public class MyJob implements Job {
    @Override
    public void execute(JobExecutionContext context) throws JobExecutionException {
        // 任务逻辑代码
    }
}

5. 在Spring Boot的任意一个类中添加以下代码，用于配置和启动Quartz Scheduler：

@Configuration
public class QuartzConfig {
    @Bean
    public JobDetail myJobDetail() {
        return JobBuilder.newJob(MyJob.class)
                .withIdentity("myJob")
                .storeDurably()
                .build();
    }

    @Bean
    public Trigger myTrigger() {
        return TriggerBuilder.newTrigger()
                .forJob(myJobDetail())
                .withIdentity("myTrigger")
                .withSchedule(CronScheduleBuilder.cronSchedule("0/5 * * * * ?"))
                .build();
    }

    @Bean
    public SchedulerFactoryBean schedulerFactoryBean(DataSource dataSource) {
        SchedulerFactoryBean schedulerFactoryBean = new SchedulerFactoryBean();
        schedulerFactoryBean.setDataSource(dataSource);
        schedulerFactoryBean.setJobDetails(myJobDetail());
        schedulerFactoryBean.setTriggers(myTrigger());
        return schedulerFactoryBean;
    }
}

6. 最后，你需要在PostgreSQL数据库中创建Quartz所需的表结构。你可以使用Quartz提供的`tables_postgres.sql`文件进行创建。

至此，你已经成功实现了使用Quartz2.3.2和Spring Boot实现数据库持久化存储多个定时任务。

spring boot+quartz实现定时任务管理

使用Spring Boot和Quartz实现定时任务管理，可以让你更方便地管理和监控你的定时任务。下面是一个使用Spring Boot、Quartz和Spring MVC实现定时任务管理的示例：

首先，在你的Spring Boot应用程序中添加Quartz和Spring MVC的依赖项：

<dependency>
    <groupId>org.quartz-scheduler</groupId>
    <artifactId>quartz</artifactId>
</dependency>

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

然后，在你的Spring Boot应用程序中创建一个Quartz的调度器，并添加一个Spring MVC的Controller来管理定时任务：

@Configuration
public class QuartzConfig {

    @Bean
    public SchedulerFactoryBean schedulerFactoryBean() {
        SchedulerFactoryBean schedulerFactoryBean = new SchedulerFactoryBean();
        schedulerFactoryBean.setTriggers(myTaskTrigger().getObject());
        return schedulerFactoryBean;
    }

    @Bean
    public JobDetailFactoryBean myTaskJob() {
        JobDetailFactoryBean jobDetailFactoryBean = new JobDetailFactoryBean();
        jobDetailFactoryBean.setJobClass(MyTask.class);
        return jobDetailFactoryBean;
    }

    @Bean
    public CronTriggerFactoryBean myTaskTrigger() {
        CronTriggerFactoryBean cronTriggerFactoryBean = new CronTriggerFactoryBean();
        cronTriggerFactoryBean.setJobDetail(myTaskJob().getObject());
        cronTriggerFactoryBean.setCronExpression("0/5 * * * * ?"); // 每5秒执行一次
        return cronTriggerFactoryBean;
    }

}

@RestController
public class TaskController {

    @Autowired
    private Scheduler scheduler;

    @PostMapping("/tasks")
    public void addTask(@RequestBody TaskInfo taskInfo) throws SchedulerException {
        JobDetail jobDetail = JobBuilder.newJob(taskInfo.getJobClass())
                .withIdentity(taskInfo.getJobName(), taskInfo.getJobGroup())
                .build();

        CronTrigger trigger = TriggerBuilder.newTrigger()
                .withIdentity(taskInfo.getTriggerName(), taskInfo.getTriggerGroup())
                .withSchedule(CronScheduleBuilder.cronSchedule(taskInfo.getCronExpression()))
                .build();

        scheduler.scheduleJob(jobDetail, trigger);
    }

    @DeleteMapping("/tasks/{jobName}/{jobGroup}")
    public void deleteTask(@PathVariable String jobName, @PathVariable String jobGroup) throws SchedulerException {
        JobKey jobKey = new JobKey(jobName, jobGroup);
        scheduler.deleteJob(jobKey);
    }

}

在上面的代码中，我们创建了一个Spring MVC的Controller来管理定时任务。我们使用了Scheduler类来添加和删除定时任务。在添加定时任务时，我们使用了TaskInfo类来封装定时任务的信息。在删除定时任务时，我们使用了jobName和jobGroup来识别定时任务。

最后，在你的定时任务类中实现Job接口，并在类上添加@DisallowConcurrentExecution注解，以确保每个任务执行时只有一个实例：

@Component
@DisallowConcurrentExecution
public class MyTask implements Job {

    @Override
    public void execute(JobExecutionContext context) throws JobExecutionException {
        // 定时任务执行的代码
    }

}

以上就是使用Spring Boot、Quartz和Spring MVC实现定时任务管理的示例。