1、maven引入quartz包
<!-- https://mvnrepository.com/artifact/org.quartz-scheduler/quartz -->
<dependency>
<groupId>org.quartz-scheduler</groupId>
<artifactId>quartz</artifactId>
<version>2.3.2</version>
</dependency>
2、創建定時任務工廠類
/**
* 定時任務工廠類
*/
@Component
public class JobFactory extends SpringBeanJobFactory implements ApplicationContextAware {
private transient AutowireCapableBeanFactory beanFactory;
@Override
protected Object createJobInstance(TriggerFiredBundle bundle) throws Exception {
final Object jobInstance = super.createJobInstance(bundle);
beanFactory.autowireBean(jobInstance);
return jobInstance;
}
@Override
public void setApplicationContext(ApplicationContext applicationContext) throws BeansException {
this.beanFactory = applicationContext.getAutowireCapableBeanFactory();
}
}
3、創建定時任務抽象類
public abstract class AbstractTask implements Job {
private Logger logger = LoggerFactory.getLogger(AbstractTask.class);
protected abstract void executeInternal(JobExecutionContext context) throws Exception;
/**
* 定時任務標識
*/
private String key;
/**
* 資料庫里配置的主鍵id
*/
private Long dataBaseId;
@Override
public void execute(JobExecutionContext context) {
try {
executeInternal(context);
} catch (Exception e) {
logger.error(e.getMessage(), e);
logger.error("job execute failed!");
}
}
public String getKey() {
return key;
}
public void setKey(String key) {
this.key = key;
}
public Long getDataBaseId() {
return dataBaseId;
}
public void setDataBaseId(Long dataBaseId) {
this.dataBaseId = dataBaseId;
}
}
4、創建定時任務業務實作類
這里可以寫你的業務代碼，實作具體的業務邏輯，
@Component("JobTask")
public class JobTask extends AbstractTask {
@Override
protected void executeInternal(JobExecutionContext context) {
System.out.println("key = " + this.getKey());
System.out.println("dataBaseId = " + this.getDataBaseId());
}
}
5、創建定時任務管理器
包括專案啟動時添加定時任務，手動添加定時任務，更新定時任務，洗掉定時任務方法，
/**
* 定時任務管理容器 component （單例模式）
*/
@Component
@Scope("singleton")
public class JobQuartzManager implements ApplicationContextAware {
/**
* 創建新的scheduler
*/
private static SchedulerFactory schedulerFactory = new StdSchedulerFactory();
private Scheduler scheduler;
/**
* 定義組名稱，不同的組用于區分任務
*/
private static final String JOB_GROUP_NAME = "JOB_GROUP_NAME";
private static final String TRIGGER_GROUP_NAME = "TRIGGER_GROUP_NAME";
/**
* 日志
*/
private Logger logger = LoggerFactory.getLogger(JobQuartzManager.class);
private ApplicationContext applicationContext;
@Autowired
private JobFactory jobFactory;
public void start() {
//啟動定時任務（初始化）
try {
this.scheduler = schedulerFactory.getScheduler();
scheduler.setJobFactory(jobFactory); //設定定時任務工廠模式
//專案啟動時默認給spring容器添加動態的定時任務
this.addJob("job" + 100L, 100L, JobTask.class, "0/2 * * * * ?");
} catch (SchedulerException e) {
logger.error(e.getMessage(), e);
throw new RuntimeException("init Scheduler failed");
}
}
public boolean addJob(String jobName, Long dataBaseId, Class jobClass, String cronExp) {
boolean result = false;
if (!CronExpression.isValidExpression(cronExp)) {
logger.error("Illegal cron expression format({})", cronExp);
return result;
}
try {
JobDetail jobDetail = JobBuilder.newJob().withIdentity(new JobKey(jobName, JOB_GROUP_NAME))
.ofType((Class<AbstractTask>) Class.forName(jobClass.getName()))
.build();
//創建完jobDetail之后，使用陳述句傳引數值，方便定時任務內部識別它是什么標識
JobDataMap jobDataMap = jobDetail.getJobDataMap();
jobDataMap.put("key", jobName);
jobDataMap.put("dataBaseId", dataBaseId);
Trigger trigger = TriggerBuilder.newTrigger()
.forJob(jobDetail)
.withSchedule(CronScheduleBuilder.cronSchedule(cronExp))
.withIdentity(new TriggerKey(jobName, TRIGGER_GROUP_NAME))
.build();
scheduler.scheduleJob(jobDetail, trigger);
scheduler.start();
result = true;
} catch (Exception e) {
logger.error(e.getMessage(), e);
logger.error("QuartzManager add job failed");
}
return result;
}
public boolean updateJob(String jobName, String cronExp) {
boolean result = false;
if (!CronExpression.isValidExpression(cronExp)) {
logger.error("Illegal cron expression format({})", cronExp);
return result;
}
JobKey jobKey = new JobKey(jobName, JOB_GROUP_NAME);
TriggerKey triggerKey = new TriggerKey(jobName, TRIGGER_GROUP_NAME);
try {
if (scheduler.checkExists(jobKey) && scheduler.checkExists(triggerKey)) {
JobDetail jobDetail = scheduler.getJobDetail(jobKey);
Trigger newTrigger = TriggerBuilder.newTrigger()
.forJob(jobDetail)
.withSchedule(CronScheduleBuilder.cronSchedule(cronExp))
.withIdentity(new TriggerKey(jobName, TRIGGER_GROUP_NAME))
.build();
scheduler.rescheduleJob(triggerKey, newTrigger);
result = true;
} else {
logger.error("update job name:{},group name:{} or trigger name:{},group name:{} not exists..",
jobKey.getName(), jobKey.getGroup(), triggerKey.getName(), triggerKey.getGroup());
}
} catch (SchedulerException e) {
logger.error(e.getMessage(), e);
logger.error("update job name:{},group name:{} failed!", jobKey.getName(), jobKey.getGroup());
}
return result;
}
public boolean deleteJob(String jobName) {
boolean result = false;
JobKey jobKey = new JobKey(jobName, JOB_GROUP_NAME);
try {
if (scheduler.checkExists(jobKey)) {
result = scheduler.deleteJob(jobKey);
} else {
logger.error("delete job name:{},group name:{} not exists.", jobKey.getName(), jobKey.getGroup());
}
} catch (SchedulerException e) {
logger.error(e.getMessage(), e);
logger.error("delete job name:{},group name:{} failed!", jobKey.getName(), jobKey.getGroup());
}
return result;
}
@Override
public void setApplicationContext(ApplicationContext applicationContext) throws BeansException {
this.applicationContext = applicationContext;
}
}
6、創建定時任務啟動類
專案運行時給spring注入定時任務
/**
* 定時任務啟動類
*/
@Component
public class JobRunner implements ApplicationRunner {
//注入定時任務管理器
@Autowired
private JobQuartzManager quartzManager;
/**
* 專案啟動時激活定時任務
*/
@Override
public void run(ApplicationArguments applicationArguments) {
System.out.println("--------------------注入定時任務---------------------");
quartzManager.start();
System.out.println("--------------------定時任務注入完成---------------------");
}
}
7、測驗案例
@RestController
@RequestMapping("/job")
public class JobController {
@Autowired
JobQuartzManager quartzManager;
@PostMapping("addJob")
@ResponseBody
public String addJob(@RequestParam("dataBaseId") Long dataBaseId, @RequestParam("cronExp") String cronExp){
boolean success = quartzManager.addJob("job" + dataBaseId, dataBaseId, JobTask.class, cronExp);
if(success){
return "添加成功";
}else{
return "添加失敗！";
}
}
@PostMapping("deleteJob")
@ResponseBody
public String deleteJob(@RequestParam("jobName") String jobName){
boolean success = quartzManager.deleteJob(jobName);
if(success){
return "洗掉成功";
}else{
return "洗掉失敗！";
}
}
@PostMapping("updateJob")
@ResponseBody
public String updateJob(@RequestParam("jobName") String jobName, @RequestParam("cronExp") String cronExp){
boolean success = quartzManager.updateJob(jobName, cronExp);
if(success){
return "更新成功";
}else{
return "更新失敗！";
}
}
}
7、資料補充
推薦一個Cron運算式生成器給大家，里面功能很豐富，
附上鏈接：Cron運算式生成器
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標籤：java
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