一、Quartz基礎(chǔ)
Quartz使用文檔，使用Quartz實現(xiàn)動態(tài)任務(wù)，Spring集成Quartz，Quartz集群部署，Quartz源碼分析
二、使用Quartz實現(xiàn)定時任務(wù)的動態(tài)調(diào)度
1、使用Quartz-jobStore 持久化
Quartz使用文檔，使用Quartz實現(xiàn)動態(tài)任務(wù)，Spring集成Quartz，Quartz集群部署，Quartz源碼分析
2、前端頁面實現(xiàn)效果圖
3、自定義job表
CREATE database quartz;
CREATE TABLE `sys_job` (
`id` int(11) NOT NULL AUTO_INCREMENT COMMENT 'ID',
`job_name` varchar(512) NOT NULL COMMENT '任務(wù)名稱',
`job_group` varchar(512) NOT NULL COMMENT '任務(wù)組名',
`job_cron` varchar(512) NOT NULL COMMENT '時間表達式',
`job_class_path` varchar(1024) NOT NULL COMMENT '類路徑,全類型',
`job_data_map` varchar(1024) DEFAULT NULL COMMENT '傳遞map參數(shù)',
`job_status` int(2) NOT NULL COMMENT '狀態(tài):1啟用 0停用',
`job_describe` varchar(1024) DEFAULT NULL COMMENT '任務(wù)功能描述',
PRIMARY KEY (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=22 DEFAULT CHARSET=utf8;
-- 插入3條數(shù)據(jù)，3個任務(wù)
-- 注意第三條，是一個發(fā)送郵件的任務(wù)，需要改成你自己的QQ和授權(quán)碼。不知道什么是授權(quán)碼的自己百度。
INSERT INTO `sys_job` (`id`, `job_name`, `job_group`, `job_cron`, `job_class_path`, `job_data_map`, `job_status`, `job_describe`) VALUES (22, 'test', 'test', '*/20 * * * * ?', 'com.demo.task.TestTask1', NULL, 1, 'a job a');
INSERT INTO `sys_job` (`id`, `job_name`, `job_group`, `job_cron`, `job_class_path`, `job_data_map`, `job_status`, `job_describe`) VALUES (23, 'test2', 'test', '*/30 * * * * ?', 'com.demo.task.TestTask2', NULL, 1, 'another job');
INSERT INTO `sys_job` (`id`, `job_name`, `job_group`, `job_cron`, `job_class_path`, `job_data_map`, `job_status`, `job_describe`) VALUES (24, 'test3', 'mail', '*/10 * * * * ?', 'com.demo.task.TestTask3', '{\"data\":{\"loginAccount\":\"改成你的QQ郵箱\",\"loginAuthCode\":\"改成你的郵箱授權(quán)碼\",\"sender\":\"改成你的QQ郵箱\",\"emailContent\":\" 你好。\",\"emailContentType\":\"text/html;charset=utf-8\",\"emailSubject\":\"十萬火急\",\"recipients\":\"改成你要的收件人郵箱，可以有多個，英文逗號隔開\"}}', 1, 'fdsafdfds');
-- 清空表的腳本
DELETE FROM QRTZ_BLOB_TRIGGERS;
DELETE FROM QRTZ_CALENDARS;
DELETE FROM QRTZ_CRON_TRIGGERS;
DELETE FROM QRTZ_FIRED_TRIGGERS;
DELETE FROM QRTZ_LOCKS;
DELETE FROM QRTZ_PAUSED_TRIGGER_GRPS;
DELETE FROM QRTZ_SCHEDULER_STATE;
DELETE FROM QRTZ_SIMPLE_TRIGGERS;
DELETE FROM QRTZ_SIMPROP_TRIGGERS;
DELETE FROM QRTZ_TRIGGERS;
DELETE FROM QRTZ_JOB_DETAILS;
COMMIT;
4、增刪改查Controller
@Controller()
@RequestMapping("/job")
public class JobController {
private final Logger logger = LoggerFactory.getLogger(this.getClass());
@Autowired
private ISysJobService sysJobService;
/**
* 打開列表頁
* @return
*/
@RequestMapping("/jobList")
public String jobList() {
return "jobListPage";
}
/**
* 打開詳情界面
* @param id
* @param model
* @return
*/
@RequestMapping("/toDetail")
public String toDetail(Integer id, Model model) {
SysJob job = sysJobService.selectByPrimaryKey(id);
model.addAttribute("job",job);
return "jobDetail";
}
/**
* 打開修改界面
* @param id
* @param model
* @return
*/
@RequestMapping("/toUpdate")
public String toUpdate(Integer id, Model model) {
SysJob job = sysJobService.selectByPrimaryKey(id);
model.addAttribute("job",job);
return "jobUpdate";
}
/**
* 打開新增界面
* @return
*/
@RequestMapping("/toJob")
public String toJob (){
return "jobAdd";
}
/**
* 查詢?nèi)蝿?wù)列表（帶分頁）
*
* @return
*/
@RequestMapping(value = "/queryList", method = RequestMethod.GET)
@ResponseBody
public LayuiData queryJobList(HttpServletRequest request, HttpServletResponse response) {
String idStr = request.getParameter("id");
String jobName = request.getParameter("jobName");
String jobGroup = request.getParameter("jobGroup");
String jobCron = request.getParameter("jobCron");
String jobClassPath = request.getParameter("jobClassPath");
String jobDescribe = request.getParameter("jobDescribe");
HashMap<String, String> map = new HashMap<String, String>();
if (StringUtils.isNotBlank(idStr)) {
map.put("id", idStr);
}
if (StringUtils.isNotBlank(jobName)) {
map.put("jobName", jobName);
}
if (StringUtils.isNotBlank(jobGroup)) {
map.put("jobGroup", jobGroup);
}
if (StringUtils.isNotBlank(jobCron)) {
map.put("jobCron", jobCron);
}
if (StringUtils.isNotBlank(jobClassPath)) {
map.put("jobClassPath", jobClassPath);
}
if (StringUtils.isNotBlank(jobDescribe)) {
map.put("jobDescribe", jobDescribe);
}
int page = Integer.parseInt(request.getParameter("page"));
int limit = Integer.parseInt(request.getParameter("limit"));
if(page>=1){
page = (page-1)*limit;
}
LayuiData layuiData = new LayuiData();
try {
List<SysJob> jobList = sysJobService.querySysJobList(map);
int count = sysJobService.getJobCount();
layuiData.setCode(0);
layuiData.setCount(count);
layuiData.setMsg("數(shù)據(jù)請求成功");
layuiData.setData(jobList);
return layuiData;
} catch (Exception e) {
throw new BizException("查詢?nèi)蝿?wù)列表異常：" + e.getMessage());
}
}
/**
* 添加定時任務(wù)
*
* @throws Exception
*/
@PostMapping(value = "/addJob")
@ResponseBody
@Transactional
public int addjob(HttpServletRequest request, HttpServletResponse response) throws Exception {
logger.info("添加任務(wù)開始... ...");
int num =0;
String jobName = request.getParameter("jobName");
String jobClassPath= request.getParameter("jobClassPath");
String jobGroup= request.getParameter("jobGroup");
String jobCron= request.getParameter("jobCron");
String jobDescribe= request.getParameter("jobDescribe");
String jobDataMap= request.getParameter("jobDataMap");
if (StringUtils.isBlank(jobName)) {
throw new BizException("任務(wù)名稱不能為空");
}
if (StringUtils.isBlank(jobGroup)) {
throw new BizException("任務(wù)組別不能為空");
}
if (StringUtils.isBlank(jobCron)) {
throw new BizException("Cron表達式不能為空");
}
if (StringUtils.isBlank(jobClassPath)) {
throw new BizException("任務(wù)類路徑不能為空");
}
// 參數(shù)不為空時校驗格式
if(StringUtils.isNotBlank(jobDataMap)){
try {
JSONObject.parseObject(jobDataMap);
} catch (Exception e) {
throw new BizException("參數(shù)JSON格式錯誤");
}
}
// 已存在校驗
SysJob queryBean = new SysJob();
queryBean.setJobName(jobName);
SysJob result = sysJobService.selectByBean(queryBean);
if (null != result) {
throw new BizException("任務(wù)名為" + jobName + "的任務(wù)已存在！");
}
SysJob bean = new SysJob();
bean.setJobName(jobName);
bean.setJobClassPath(jobClassPath);
bean.setJobGroup(jobGroup);
bean.setJobCron(jobCron);
bean.setJobDescribe(jobDescribe);
bean.setJobDataMap(jobDataMap);
bean.setJobStatus(Constant.JOB_STATE.YES);
try {
num = sysJobService.insertSelective(bean);
} catch (Exception e) {
throw new BizException("新增定時任務(wù)失敗");
}
SchedulerUtil.addJob(jobClassPath,jobName, jobGroup, jobCron,jobDataMap);
return num;
}
/**
* 變更定時任務(wù)執(zhí)行狀態(tài)
* @return
* @throws Exception
*/
@GetMapping(value = "/changeState")
@ResponseBody
public int changeState(@RequestParam(value = "id") String idStr)throws Exception{
logger.info("變更定時任務(wù)狀態(tài)開始... ...");
if (StringUtils.isBlank(idStr)) {
throw new BizException("任務(wù)ID不能為空");
}
int id = Integer.parseInt(idStr);
// 校驗
SysJob queryBean = new SysJob();
queryBean.setId(id);
SysJob result = sysJobService.selectByBean(queryBean);
if (null == result) {
throw new BizException("任務(wù)ID為" + id + "的任務(wù)不存在！");
}
SysJob updateBean = new SysJob();
updateBean.setId(id);
//如果是現(xiàn)在是啟用，則停用
if(Constant.JOB_STATE.YES == result.getJobStatus()){
updateBean.setJobStatus(Constant.JOB_STATE.NO);
//SchedulerUtil.jobPause(result.getJobName(), result.getJobGroup());
Boolean b=SchedulerUtil.isResume(result.getJobName(), result.getJobGroup());
if (b) {
SchedulerUtil.jobdelete(result.getJobName(), result.getJobGroup());
}
}
//如果現(xiàn)在是停用，則啟用
if(Constant.JOB_STATE.NO == result.getJobStatus()){
updateBean.setJobStatus(Constant.JOB_STATE.YES);
//SchedulerUtil.jobresume(result.getJobName(), result.getJobGroup());
Boolean b=SchedulerUtil.isResume(result.getJobName(), result.getJobGroup());
//存在則激活，不存在則添加
if (b) {
SchedulerUtil.jobresume(result.getJobName(), result.getJobGroup());
}else {
SchedulerUtil.addJob(result.getJobClassPath(),result.getJobName(), result.getJobGroup(), result.getJobCron(),result.getJobDataMap());
}
}
try {
sysJobService.updateByPrimaryKeySelective(updateBean);
} catch (Exception e) {
throw new BizException("更新數(shù)據(jù)庫的定時任務(wù)信息異常！");
}
// 1表示成功
return 1;
}
/**
* 刪除一個任務(wù)
*
* @throws Exception
*/
@PostMapping(value = "/deleteJob")
@ResponseBody
public int deletejob(@RequestParam(value = "id") String idStr) throws Exception {
logger.info("刪除定時任務(wù)狀態(tài)開始... ...");
int num =0;
if (StringUtils.isBlank(idStr)) {
throw new BizException("任務(wù)ID不能為空");
}
int id = Integer.parseInt(idStr);
// 存在性校驗
SysJob queryBean = new SysJob();
queryBean.setId(id);
SysJob result = sysJobService.selectByBean(queryBean);
if (null == result) {
throw new BizException("任務(wù)ID為" + idStr + "的任務(wù)不存在！");
}
try {
num = sysJobService.deleteByPrimaryKey(id);
} catch (Exception e) {
throw new BizException("從數(shù)據(jù)庫刪除定時任務(wù)時發(fā)生異常！");
}
SchedulerUtil.jobdelete(result.getJobName(), result.getJobGroup());
return num;
}
/**
* 修改定時表達式
*/
@RequestMapping("/reSchedulejob")
@ResponseBody
public int updateByBean(HttpServletRequest request, HttpServletResponse response) throws Exception {
logger.info("修改定時任務(wù)信息開始... ...");
int num =0;
String jobCron = request.getParameter("jobCron");
String jobDescribe = request.getParameter("jobDescribe");
String idStr = request.getParameter("id");
int id = Integer.parseInt(idStr);
// 數(shù)據(jù)非空校驗
if (!StringUtils.isNotBlank(idStr)) {
throw new BizException("任務(wù)ID不能為空");
}
SysJob result = sysJobService.selectByPrimaryKey(id);
// 數(shù)據(jù)不存在
if (null == result) {
throw new BizException("根據(jù)任務(wù)ID[" + id + "]未查到相應(yīng)的任務(wù)記錄");
}
SysJob bean = new SysJob();
bean.setId(id);
bean.setJobCron(jobCron);
bean.setJobDescribe(jobDescribe);
try {
num = sysJobService.updateByPrimaryKeySelective(bean);
} catch (Exception e) {
throw new BizException("變更任務(wù)表達式異常：" + e.getMessage());
}
//只有任務(wù)狀態(tài)為啟用，才開始運行
// 如果先啟動再手工插入數(shù)據(jù)，此處會報空指針異常
if( result.getJobStatus() ==Constant.JOB_STATE.YES ){
SchedulerUtil.jobReschedule(result.getJobName(), result.getJobGroup(),jobCron);
}
// 返回成功
return num;
}
/**
* 展示任務(wù)調(diào)度管理頁
*
* @param request
* @param rep
* @return
*/
@RequestMapping(value = "/jobPage", method = RequestMethod.GET)
public String getJobPage(HttpServletRequest request, HttpServletResponse rep) {
return "job/job_info";
}
}
5、Quartz工具類
/**
* Quartz工具類
*/
public class SchedulerUtil {
private static Logger logger = LoggerFactory.getLogger(SchedulerUtil.class);
/**
* 新增定時任務(wù)
* @param jobClassName 類路徑
* @param jobName 任務(wù)名稱
* @param jobGroupName 組別
* @param cronExpression Cron表達式
* @param jobDataMap 需要傳遞的參數(shù)
* @throws Exception
*/
public static void addJob(String jobClassName,String jobName, String jobGroupName, String cronExpression,String jobDataMap) throws Exception {
// 通過SchedulerFactory獲取一個調(diào)度器實例
SchedulerFactory sf = new StdSchedulerFactory();
Scheduler scheduler = sf.getScheduler();
// 啟動調(diào)度器
scheduler.start();
// 構(gòu)建job信息
JobDetail jobDetail = JobBuilder.newJob(getClass(jobClassName).getClass())
.withIdentity(jobName, jobGroupName).build();
// JobDataMap用于傳遞任務(wù)運行時的參數(shù)，比如定時發(fā)送郵件，可以用json形式存儲收件人等等信息
if (StringUtils.isNotEmpty(jobDataMap)) {
JSONObject jb = JSONObject.parseObject(jobDataMap);
Map<String, Object> dataMap =(Map<String, Object>) jb.get("data");
for (Map.Entry<String, Object> m:dataMap.entrySet()) {
jobDetail.getJobDataMap().put(m.getKey(),m.getValue());
}
}
// 表達式調(diào)度構(gòu)建器(即任務(wù)執(zhí)行的時間)
CronScheduleBuilder scheduleBuilder = CronScheduleBuilder.cronSchedule(cronExpression);
// 按新的cronExpression表達式構(gòu)建一個新的trigger
CronTrigger trigger = TriggerBuilder.newTrigger().withIdentity(jobName, jobGroupName)
.withSchedule(scheduleBuilder).startNow().build();
try {
scheduler.scheduleJob(jobDetail, trigger);
} catch (SchedulerException e) {
logger.info("創(chuàng)建定時任務(wù)失敗" + e);
throw new Exception("創(chuàng)建定時任務(wù)失敗");
}
}
/**
* 停用一個定時任務(wù)
* @param jobName 任務(wù)名稱
* @param jobGroupName 組別
* @throws Exception
*/
public static void jobPause(String jobName, String jobGroupName) throws Exception {
// 通過SchedulerFactory獲取一個調(diào)度器實例
SchedulerFactory sf = new StdSchedulerFactory();
Scheduler scheduler = sf.getScheduler();
scheduler.pauseJob(JobKey.jobKey(jobName, jobGroupName));
}
/**
* 啟用一個定時任務(wù)
* @param jobName 任務(wù)名稱
* @param jobGroupName 組別
* @throws Exception
*/
public static void jobresume(String jobName, String jobGroupName) throws Exception {
// 通過SchedulerFactory獲取一個調(diào)度器實例
SchedulerFactory sf = new StdSchedulerFactory();
Scheduler scheduler = sf.getScheduler();
scheduler.resumeJob(JobKey.jobKey(jobName, jobGroupName));
}
/**
* 刪除一個定時任務(wù)
* @param jobName 任務(wù)名稱
* @param jobGroupName 組別
* @throws Exception
*/
public static void jobdelete(String jobName, String jobGroupName) throws Exception {
// 通過SchedulerFactory獲取一個調(diào)度器實例
SchedulerFactory sf = new StdSchedulerFactory();
Scheduler scheduler = sf.getScheduler();
scheduler.pauseTrigger(TriggerKey.triggerKey(jobName, jobGroupName));
scheduler.unscheduleJob(TriggerKey.triggerKey(jobName, jobGroupName));
scheduler.deleteJob(JobKey.jobKey(jobName, jobGroupName));
}
/**
* 更新定時任務(wù)表達式
* @param jobName 任務(wù)名稱
* @param jobGroupName 組別
* @param cronExpression Cron表達式
* @throws Exception
*/
public static void jobReschedule(String jobName, String jobGroupName, String cronExpression) throws Exception {
try {
SchedulerFactory schedulerFactory = new StdSchedulerFactory();
Scheduler scheduler = schedulerFactory.getScheduler();
TriggerKey triggerKey = TriggerKey.triggerKey(jobName, jobGroupName);
// 表達式調(diào)度構(gòu)建器
CronScheduleBuilder scheduleBuilder = CronScheduleBuilder.cronSchedule(cronExpression);
CronTrigger trigger = (CronTrigger) scheduler.getTrigger(triggerKey);
// 按新的cronExpression表達式重新構(gòu)建trigger
trigger = trigger.getTriggerBuilder().withIdentity(triggerKey).withSchedule(scheduleBuilder).startNow().build();
// 按新的trigger重新設(shè)置job執(zhí)行
scheduler.rescheduleJob(triggerKey, trigger);
} catch (SchedulerException e) {
System.out.println("更新定時任務(wù)失敗" + e);
throw new Exception("更新定時任務(wù)失敗");
}
}
/**
* 檢查Job是否存在
* @throws Exception
*/
public static Boolean isResume(String jobName, String jobGroupName) throws Exception {
SchedulerFactory sf = new StdSchedulerFactory();
Scheduler scheduler = sf.getScheduler();
TriggerKey triggerKey = TriggerKey.triggerKey(jobName, jobGroupName);
Boolean state = scheduler.checkExists(triggerKey);
return state;
}
/**
* 暫停所有任務(wù)
* @throws Exception
*/
public static void pauseAlljob() throws Exception {
SchedulerFactory sf = new StdSchedulerFactory();
Scheduler scheduler = sf.getScheduler();
scheduler.pauseAll();
}
/**
* 喚醒所有任務(wù)
* @throws Exception
*/
public static void resumeAlljob() throws Exception {
SchedulerFactory sf = new StdSchedulerFactory();
Scheduler sched = sf.getScheduler();
sched.resumeAll();
}
/**
* 獲取Job實例
* @param classname
* @return
* @throws Exception
*/
public static BaseJob getClass(String classname) throws Exception {
try {
Class<?> c = Class.forName(classname);
return (BaseJob) c.newInstance();
} catch (Exception e) {
throw new Exception("類["+classname+"]不存在！");
}
}
}
6、測試任務(wù)類
@DisallowConcurrentExecution
public class TestTask1 implements BaseJob {
@Override
public void execute(JobExecutionContext context) throws JobExecutionException {
Date date = new Date();
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
System.out.println(Thread.currentThread().getName() + " " +sdf.format(date) + " Task1： ----hello1----");
}
}
public class TestTask2 implements BaseJob {
@Override
public void execute(JobExecutionContext context) throws JobExecutionException {
Date date = new Date();
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
System.out.println(Thread.currentThread().getName() + " " +sdf.format(date) + " Task2： ----hello2----");
}
}
public class TestTask3 implements BaseJob {
private final Logger logger = LoggerFactory.getLogger(this.getClass());
@Autowired
private ISysJobService sysJobService;
@Override
public void execute(JobExecutionContext context) throws JobExecutionException {
logger.info("開始執(zhí)行任務(wù)3... ...");
HashMap<String,String> map = new HashMap<String,String>();
map.put("jobGroup", "mail");
map.put("jobStatus", "1");
List<SysJob> jobList= sysJobService.querySysJobList(map);
if( null == jobList || jobList.size() ==0){
logger.info("沒有狀態(tài)為可用的發(fā)送郵件任務(wù)... ...");
}
for (SysJob sysJob:jobList) {
logger.info("開始發(fā)送郵件... ...");
}
}
}
7、springboot啟動初始化定時任務(wù)
/**
* 這個類用于啟動SpringBoot時，加載作業(yè)。run方法會自動執(zhí)行。
*
* 另外可以使用 ApplicationRunner
*
*/
public class InitStartSchedule implements CommandLineRunner {
private final Logger logger = LoggerFactory.getLogger(this.getClass());
@Autowired
private ISysJobService sysJobService;
@Autowired
private MyJobFactory myJobFactory;
@Override
public void run(String... args) throws Exception {
/**
* 用于程序啟動時加載定時任務(wù)，并執(zhí)行已啟動的定時任務(wù)(只會執(zhí)行一次，在程序啟動完執(zhí)行)
*/
//查詢job狀態(tài)為啟用的
HashMap<String,String> map = new HashMap<String,String>();
map.put("jobStatus", "1");
List<SysJob> jobList= sysJobService.querySysJobList(map);
if( null == jobList || jobList.size() ==0){
logger.info("系統(tǒng)啟動，沒有需要執(zhí)行的任務(wù)... ...");
}
// 通過SchedulerFactory獲取一個調(diào)度器實例
SchedulerFactory sf = new StdSchedulerFactory();
Scheduler scheduler = sf.getScheduler();
// 如果不設(shè)置JobFactory，Service注入到Job會報空指針
scheduler.setJobFactory(myJobFactory);
// 啟動調(diào)度器
scheduler.start();
for (SysJob sysJob:jobList) {
String jobClassName=sysJob.getJobName();
String jobGroupName=sysJob.getJobGroup();
//構(gòu)建job信息
JobDetail jobDetail = JobBuilder.newJob(getClass(sysJob.getJobClassPath()).getClass()).withIdentity(jobClassName, jobGroupName).build();
if (StringUtils.isNotEmpty(sysJob.getJobDataMap())) {
JSONObject jb = JSONObject.parseObject(sysJob.getJobDataMap());
Map<String, Object> dataMap = (Map<String, Object>)jb.get("data");
for (Map.Entry<String, Object> m:dataMap.entrySet()) {
jobDetail.getJobDataMap().put(m.getKey(),m.getValue());
}
}
//表達式調(diào)度構(gòu)建器(即任務(wù)執(zhí)行的時間)
CronScheduleBuilder scheduleBuilder = CronScheduleBuilder.cronSchedule(sysJob.getJobCron());
//按新的cronExpression表達式構(gòu)建一個新的trigger
CronTrigger trigger = TriggerBuilder.newTrigger().withIdentity(jobClassName, jobGroupName)
.withSchedule(scheduleBuilder).startNow().build();
// 任務(wù)不存在的時候才添加
if( !scheduler.checkExists(jobDetail.getKey()) ){
try {
scheduler.scheduleJob(jobDetail, trigger);
} catch (SchedulerException e) {
logger.info("\n創(chuàng)建定時任務(wù)失敗"+e);
throw new Exception("創(chuàng)建定時任務(wù)失敗");
}
}
}
}
public static BaseJob getClass(String classname) throws Exception
{
Class<?> c= Class.forName(classname);
return (BaseJob)c.newInstance();
}
}
8、自定義JobFactory，使Task注冊為Bean
/**
*
* 將Spring的對象注入到Quartz Job 1
*/
public class AdaptableJobFactory implements JobFactory {
@Override
public Job newJob(TriggerFiredBundle bundle, Scheduler arg1) throws SchedulerException {
return newJob(bundle);
}
public Job newJob(TriggerFiredBundle bundle) throws SchedulerException {
try {
// 返回Job實例
Object jobObject = createJobInstance(bundle);
return adaptJob(jobObject);
}
catch (Exception ex) {
throw new SchedulerException("Job instantiation failed", ex);
}
}
// 通過反射的方式創(chuàng)建實例
protected Object createJobInstance(TriggerFiredBundle bundle) throws Exception {
Method getJobDetail = bundle.getClass().getMethod("getJobDetail");
Object jobDetail = ReflectionUtils.invokeMethod(getJobDetail, bundle);
Method getJobClass = jobDetail.getClass().getMethod("getJobClass");
Class jobClass = (Class) ReflectionUtils.invokeMethod(getJobClass, jobDetail);
return jobClass.newInstance();
}
protected Job adaptJob(Object jobObject) throws Exception {
if (jobObject instanceof Job) {
return (Job) jobObject;
}
else if (jobObject instanceof Runnable) {
return new DelegatingJob((Runnable) jobObject);
}
else {
throw new IllegalArgumentException("Unable to execute job class [" + jobObject.getClass().getName() +
"]: only [org.quartz.Job] and [java.lang.Runnable] supported.");
}
}
}
/**
*
* 將Spring的對象注入到Quartz Job 2
*/
@Component
public class MyJobFactory extends AdaptableJobFactory {
@Autowired
private AutowireCapableBeanFactory capableBeanFactory;
protected Object createJobInstance(TriggerFiredBundle bundle) throws Exception {
//調(diào)用父類的方法
Object jobInstance = super.createJobInstance(bundle);
// 使我們的JOB注入到Spring容器
capableBeanFactory.autowireBean(jobInstance);
return jobInstance;
}
}
9、省略的內(nèi)容
此處省略了SysJob實體類，以及Mapper等對數(shù)據(jù)庫的操作。
10、總結(jié)
本文只是大致實現(xiàn)一個基于Quartz實現(xiàn)定時任務(wù)的動態(tài)調(diào)度，具體細節(jié)還有很多未完善的。自己實現(xiàn)一個任務(wù)調(diào)度器的話，非常麻煩細節(jié)很多。
實現(xiàn)任務(wù)調(diào)度，推薦使用xxl-job分布式任務(wù)調(diào)度，或者Elastic-job。文章來源：http://www.zghlxwxcb.cn/news/detail-609715.html
如果需求實在是想要動態(tài)的創(chuàng)建任務(wù)，修改任務(wù)，那么目前為止我還沒有更好的辦法，只能參考該文章了。文章來源地址http://www.zghlxwxcb.cn/news/detail-609715.html
到了這里，關(guān)于Quartz實戰(zhàn)：基于Quartz實現(xiàn)定時任務(wù)的動態(tài)調(diào)度，實現(xiàn)定時任務(wù)的增刪改查的文章就介紹完了。如果您還想了解更多內(nèi)容，請在右上角搜索TOY模板網(wǎng)以前的文章或繼續(xù)瀏覽下面的相關(guān)文章，希望大家以后多多支持TOY模板網(wǎng)！
