Quartz recovery 及misfired机制的源码分析

好的，以下是 SpringBoot 搭配 Quartz 实现动态定时任务的源码： 1. 首先，我们需要引入 Quartz 和 SpringBoot 的依赖： ```xml <!-- Quartz相关依赖 --> <dependency> <groupId>org.quartz-scheduler</groupId> <artifactId>quartz</artifactId> <version>2.3.2</version> </dependency> <dependency> <groupId>org.quartz-scheduler</groupId> <artifactId>quartz-jobs</artifactId> <version>2.3.2</version> </dependency> <!-- SpringBoot相关依赖 --> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-data-jpa</artifactId> </dependency> ``` 2. 创建定时任务实体类，用于封装定时任务的信息，包括任务名称、任务组、任务类名、任务状态（是否启用）、任务表达式等： ```java @Entity @Table(name = "job_task") @Data public class JobTask implements Serializable { private static final long serialVersionUID = 1L; /** * ID */ @Id @GeneratedValue(strategy = GenerationType.IDENTITY) private Long id; /** * 任务名称 */ @NotBlank(message = "任务名称不能为空") private String name; /** * 任务分组 */ @NotBlank(message = "任务分组不能为空") private String group; /** * 任务类名 */ @NotBlank(message = "任务类名不能为空") private String className; /** * 任务状态，0：禁用，1：启用 */ @NotNull(message = "任务状态不能为空") private Integer status; /** * 任务表达式 */ @NotBlank(message = "任务表达式不能为空") private String cronExpression; /** * 创建时间 */ private LocalDateTime createTime; /** * 最后一次修改时间 */ private LocalDateTime updateTime; } ``` 3. 创建定时任务的服务类，用于管理定时任务的增删改查等操作，同时也需要实现 `InitializingBean` 接口，在启动应用时加载已存在的定时任务： ```java @Service @AllArgsConstructor public class JobTaskService implements InitializingBean { private final Scheduler scheduler; private final JobTaskRepository jobTaskRepository; /** * 添加任务 * @param jobTask * @return * @throws Exception */ public boolean addJobTask(JobTask jobTask) throws Exception { if (jobTask == null || StringUtils.isBlank(jobTask.getCronExpression())) { return false; } if (StringUtils.isBlank(jobTask.getName()) || StringUtils.isBlank(jobTask.getClassName())) { throw new Exception("任务名称或任务类名不能为空"); } // 判断任务是否已存在 JobKey jobKey = JobKey.jobKey(jobTask.getName(), jobTask.getGroup()); if (scheduler.checkExists(jobKey)) { return false; } // 构建任务实例 JobDetail jobDetail = JobBuilder.newJob(getClass(jobTask.getClassName()).getClass()) .withIdentity(jobTask.getName(), jobTask.getGroup()) .build(); // 构建任务触发器 CronScheduleBuilder cronScheduleBuilder = CronScheduleBuilder.cronSchedule(jobTask.getCronExpression()); CronTrigger trigger = TriggerBuilder.newTrigger() .withIdentity(jobTask.getName(), jobTask.getGroup()) .withSchedule(cronScheduleBuilder) .build(); // 注册任务和触发器 scheduler.scheduleJob(jobDetail, trigger); // 如果任务状态为启用，则立即启动任务 if (jobTask.getStatus() == 1) { scheduler.triggerJob(jobKey); } // 保存任务信息 jobTask.setCreateTime(LocalDateTime.now()); jobTask.setUpdateTime(LocalDateTime.now()); jobTaskRepository.save(jobTask); return true; } /** * 修改任务 * @param jobTask * @return * @throws Exception */ public boolean modifyJobTask(JobTask jobTask) throws Exception { if (jobTask == null || StringUtils.isBlank(jobTask.getCronExpression())) { return false; } if (StringUtils.isBlank(jobTask.getName()) || StringUtils.isBlank(jobTask.getClassName())) { throw new Exception("任务名称或任务类名不能为空"); } // 判断任务是否存在 JobKey jobKey = JobKey.jobKey(jobTask.getName(), jobTask.getGroup()); if (!scheduler.checkExists(jobKey)) { return false; } // 修改任务触发器 CronScheduleBuilder cronScheduleBuilder = CronScheduleBuilder.cronSchedule(jobTask.getCronExpression()); CronTrigger newTrigger = TriggerBuilder.newTrigger() .withIdentity(jobTask.getName(), jobTask.getGroup()) .withSchedule(cronScheduleBuilder) .build(); scheduler.rescheduleJob(TriggerKey.triggerKey(jobTask.getName(), jobTask.getGroup()), newTrigger); // 修改任务信息 JobTask oldJobTask = jobTaskRepository.findByNameAndGroup(jobTask.getName(), jobTask.getGroup()); oldJobTask.setClassName(jobTask.getClassName()); oldJobTask.setStatus(jobTask.getStatus()); oldJobTask.setCronExpression(jobTask.getCronExpression()); oldJobTask.setUpdateTime(LocalDateTime.now()); jobTaskRepository.save(oldJobTask); return true; } /** * 删除任务 * @param name * @param group * @return * @throws Exception */ public boolean deleteJobTask(String name, String group) throws Exception { JobKey jobKey = JobKey.jobKey(name, group); if (!scheduler.checkExists(jobKey)) { return false; } scheduler.deleteJob(jobKey); jobTaskRepository.deleteByNameAndGroup(name, group); return true; } /** * 获取所有任务 * @return */ public List<JobTask> getAllJobTask() { return jobTaskRepository.findAll(); } /** * 根据任务名称和分组获取任务信息 * @param name * @param group * @return */ public JobTask getJobTaskByNameAndGroup(String name, String group) { return jobTaskRepository.findByNameAndGroup(name, group); } /** * 获取任务类实例 * @param className * @return * @throws Exception */ private Object getClass(String className) throws Exception { Class<?> clazz = Class.forName(className); return clazz.newInstance(); } /** * 实现 InitializingBean 接口，在启动应用时加载已存在的定时任务 * @throws Exception */ @Override public void afterPropertiesSet() throws Exception { List<JobTask> jobTaskList = jobTaskRepository.findAll(); for (JobTask jobTask : jobTaskList) { if (jobTask.getStatus() == 1) { addJobTask(jobTask); } } } } ``` 4. 创建定时任务的控制器类，用于处理新增、修改、删除等请求： ```java @RestController @AllArgsConstructor @RequestMapping("/job") public class JobTaskController { private final JobTaskService jobTaskService; /** * 添加任务 * @param jobTask * @return * @throws Exception */ @PostMapping public ResponseEntity addJobTask(@RequestBody JobTask jobTask) throws Exception { boolean result = jobTaskService.addJobTask(jobTask); return result ? ResponseEntity.ok("任务添加成功") : ResponseEntity.badRequest().body("任务添加失败"); } /** * 修改任务 * @param jobTask * @return * @throws Exception */ @PutMapping public ResponseEntity modifyJobTask(@RequestBody JobTask jobTask) throws Exception { boolean result = jobTaskService.modifyJobTask(jobTask); return result ? ResponseEntity.ok("任务修改成功") : ResponseEntity.badRequest().body("任务修改失败"); } /** * 删除任务 * @param name * @param group * @return * @throws Exception */ @DeleteMapping("/{name}/{group}") public ResponseEntity deleteJobTask(@PathVariable String name, @PathVariable String group) throws Exception { boolean result = jobTaskService.deleteJobTask(name, group); return result ? ResponseEntity.ok("任务删除成功") : ResponseEntity.badRequest().body("任务删除失败"); } /** * 获取所有任务 * @return */ @GetMapping public ResponseEntity getAllJobTask() { List<JobTask> jobTaskList = jobTaskService.getAllJobTask(); return ResponseEntity.ok(jobTaskList); } /** * 根据任务名称和分组获取任务信息 * @param name * @param group * @return */ @GetMapping("/{name}/{group}") public ResponseEntity getJobTaskByNameAndGroup(@PathVariable String name, @PathVariable String group) { JobTask jobTask = jobTaskService.getJobTaskByNameAndGroup(name, group); return ResponseEntity.ok(jobTask); } } ``` 5. 创建定时任务的启动类，用于启动 SpringBoot 应用： ```java @SpringBootApplication public class Application { public static void main(String[] args) { SpringApplication.run(Application.class, args); } /** * 注册定时任务调度器 * @return * @throws SchedulerException */ @Bean public SchedulerFactoryBean schedulerFactoryBean() throws SchedulerException { SchedulerFactoryBean schedulerFactoryBean = new SchedulerFactoryBean(); Properties properties = new Properties(); properties.put("org.quartz.scheduler.instanceName", "ChitGPTScheduler"); properties.put("org.quartz.threadPool.threadCount", "10"); schedulerFactoryBean.setQuartzProperties(properties); schedulerFactoryBean.setStartupDelay(5); return schedulerFactoryBean; } /** * 注册定时任务实例 * @return */ @Bean public Scheduler scheduler() { return schedulerFactoryBean().getScheduler(); } } ``` 以上就是 SpringBoot 搭配 Quartz 实现动态定时任务的源码，希望能对您有所帮助！