在之前已經(jīng)講解了如果配置靜態(tài)的quartz定時(shí)器（傳送門：quartz定時(shí)器 ），不知道 各位小伙伴有沒有成功呢飒房，這次分享的是動(dòng)態(tài)增刪停止恢復(fù)定時(shí)器； 這里通過在頁(yè)面?zhèn)鲙讉€(gè)參數(shù)就可以控制定時(shí)器的啟用關(guān)閉，而不用修改配置文件揭鳞，是不是更方便了呢。不說廢話梆奈，下面開始野崇。
需要的jar包
在上個(gè)quartz中，我們用的是quartz-all-1.6.0.jar這個(gè)包亩钟，這次我們不用這個(gè)包乓梨，用的新特新2.0之后的包，需要下載quartz-2.2.1.jar清酥、quartz-jobs-2.2.1.jar扶镀；
applocationContext.xml中配置
在applicationContext.xml中最后面加上下面這段代碼即可：
<!-- 這句話是為了實(shí)現(xiàn)在job中使用注解，注入service -->
<bean id="jobFactory" class="com.reassure.quartz.JobFactory"></bean>
<bean id="schedulerFactoryBean" class="org.springframework.scheduling.quartz.SchedulerFactoryBean">
<property name="jobFactory" ref="jobFactory"></property>
</bean>
創(chuàng)建QuartzJob繼承Job
package com.reassure.quartz;
import org.quartz.DisallowConcurrentExecution;
import org.quartz.Job;
import org.quartz.JobExecutionContext;
import org.quartz.JobExecutionException;
import com.reassure.sys.entity.ScheduleJob;
/**
* 通過注解實(shí)現(xiàn)有狀態(tài)的job
* @author Administrator
*
*/
@DisallowConcurrentExecution
public class QuartzJob implements Job{
@Override
public void execute(JobExecutionContext job) throws JobExecutionException {
ScheduleJob scheduleJob = (ScheduleJob)job.getMergedJobDataMap().get("scheduleJob");
String name=scheduleJob.getJobName();
System.out.println("定時(shí)器"+name+"正在運(yùn)行焰轻。臭觉。。辱志。蝠筑。");
}
}
在這里用到的jScheduleJob是自己創(chuàng)建的一個(gè)實(shí)體，里面存放的是一個(gè)定時(shí)任務(wù)的各個(gè)屬性揩懒，原來我是準(zhǔn)備存在數(shù)據(jù)庫(kù)的什乙，后面發(fā)現(xiàn)沒有必要，
如果各位小伙伴有需要已球，就可以創(chuàng)建一個(gè)表臣镣，動(dòng)態(tài)讀取數(shù)據(jù)庫(kù)。
創(chuàng)建ScheduleJob實(shí)體
package com.reassure.sys.entity;
public class ScheduleJob {
/** 任務(wù)名稱 */
private String jobName;
/** 任務(wù)分組 */
private String jobGroup;
public String getJobName() {
return jobName;
}
public void setJobName(String jobName) {
this.jobName = jobName;
}
public String getJobGroup() {
return jobGroup;
}
public void setJobGroup(String jobGroup) {
this.jobGroup = jobGroup;
}
@Override
public String toString() {
return "ScheduleJob [jobName=" + jobName + ", jobGroup=" + jobGroup + "]";
}
}
創(chuàng)建controller
package com.reassure.sys.controller;
import java.util.HashMap;
import java.util.Map;
import javax.servlet.http.HttpServletRequest;
import org.quartz.CronScheduleBuilder;
import org.quartz.CronTrigger;
import org.quartz.JobBuilder;
import org.quartz.JobDetail;
import org.quartz.JobKey;
import org.quartz.Scheduler;
import org.quartz.SchedulerException;
import org.quartz.TriggerBuilder;
import org.quartz.TriggerKey;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;
import com.reassure.quartz.QuartzJob;
import com.reassure.sys.entity.ScheduleJob;
@Controller
@RequestMapping(value="quartz")
public class QuartzController {
@Autowired
private Scheduler scheduler;
/**
* 進(jìn)入定時(shí)器管理界面
* @param jobName
* @param jobGroup
* @return
*/
@RequestMapping("/quartzPage")
public String quartzPage(String jobName,String jobGroup){
return "backstageViews/quartz/quartz";
}
/**
* 任務(wù)創(chuàng)建與更新(未存在的就創(chuàng)建和悦，已存在的則更新)
* @param request
* @param response
* @param scheduleJob
* @param model
* @return
*/
@RequestMapping(value="/startQuartz")
@ResponseBody
public Map<String,Object> updateQuartz(HttpServletRequest request,String jobName,String jobGroup){
Map<String,Object> map = new HashMap<>();
ScheduleJob job = new ScheduleJob();
job.setJobGroup(jobGroup.trim());
job.setJobName(jobName.trim());
System.out.println(jobName+","+jobGroup);
try {
//獲取觸發(fā)器標(biāo)識(shí)
TriggerKey triggerKey = TriggerKey.triggerKey(jobName.trim(), jobGroup.trim());
//獲取觸發(fā)器trigger
CronTrigger trigger = (CronTrigger) scheduler.getTrigger(triggerKey);
if(null==trigger){//不存在任務(wù)
//創(chuàng)建任務(wù)
JobDetail jobDetail = JobBuilder.newJob(QuartzJob.class)
.withIdentity(jobName.trim(), jobGroup.trim())
.build();
jobDetail.getJobDataMap().put("scheduleJob", job);
//表達(dá)式調(diào)度構(gòu)建器
//這里的時(shí)間也可以通過頁(yè)面?zhèn)魉瓦^來退疫。具體怎么寫請(qǐng)看上一篇quartz介紹
CronScheduleBuilder scheduleBuilder = CronScheduleBuilder.cronSchedule("0/10 * * * * ?");
//按新的cronExpression表達(dá)式構(gòu)建一個(gè)新的trigger
trigger = TriggerBuilder.newTrigger()
.withIdentity(job.getJobName(), job.getJobGroup())
.withSchedule(scheduleBuilder)
.build();
scheduler.scheduleJob(jobDetail, trigger);
}else{//存在任務(wù)
// Trigger已存在，那么更新相應(yīng)的定時(shí)設(shè)置
//表達(dá)式調(diào)度構(gòu)建器
CronScheduleBuilder scheduleBuilder = CronScheduleBuilder.cronSchedule("0/5 * * * *");
//按新的cronExpression表達(dá)式重新構(gòu)建trigger
trigger = trigger.getTriggerBuilder()
.withIdentity(triggerKey)
.withSchedule(scheduleBuilder)
.build();
//按新的trigger重新設(shè)置job執(zhí)行
scheduler.rescheduleJob(triggerKey, trigger);
}
} catch (SchedulerException e) {
e.printStackTrace();
}
map.put("msg", "success");
map.put("code", 200);
return map;
}
/**
* 刪除任務(wù)
* @param request
* @param response
* @param scheduleJob
* @param model
* @return
*/
@RequestMapping(value="/removeQuartz")
public void deleteQuartz(HttpServletRequest request,String jobName,String jobGroup){
JobKey jobKey = JobKey.jobKey(jobName.trim(), jobGroup.trim());
System.out.println("刪除"+jobName.trim()+"任務(wù)");
try {
scheduler.deleteJob(jobKey);
} catch (SchedulerException e) {
e.printStackTrace();
}
}
/**
* 暫停任務(wù)
* @param request
* @param response
* @param job
* @param model
* @return
*/
@RequestMapping(value="/pauseQuartz")
public void pauseQuartz(HttpServletRequest request,String jobName,String jobGroup){
ScheduleJob job = new ScheduleJob();
job.setJobGroup(jobGroup);
job.setJobName(jobName);
System.out.println(jobName+","+jobGroup);
JobKey jobKey = JobKey.jobKey(jobName, jobGroup);
try {
scheduler.pauseJob(jobKey);
} catch (SchedulerException e) {
e.printStackTrace();
}
}
/**
* 恢復(fù)任務(wù)
* @param request
* @param response
* @param scheduleJob
* @param model
* @return
*/
@RequestMapping(value="/resumeQuartz")
public void resumeQuartz(HttpServletRequest request,String jobName,String jobGroup){
ScheduleJob job = new ScheduleJob();
job.setJobGroup(jobGroup);
job.setJobName(jobName);
System.out.println(jobName+","+jobGroup);
JobKey jobKey = JobKey.jobKey(jobName, jobGroup);
try {
scheduler.resumeJob(jobKey);
} catch (SchedulerException e) {
e.printStackTrace();
}
}
}
quartz這里是通過名字辨別每個(gè)定時(shí)器的鸽素，你開啟了一個(gè)name叫aaa的定時(shí)器褒繁，那么關(guān)閉的時(shí)候，傳aaa這個(gè)名字就可以關(guān)閉了馍忽。
到這里棒坏，如果你不需要在定時(shí)器里面用到spring的注入燕差，那么就可以把a(bǔ)pplicationContext配置的文件改成：
<bean id="schedulerFactoryBean" class="org.springframework.scheduling.quartz.SchedulerFactoryBean" />
然后就可以用了，當(dāng)然在定時(shí)器里面用不到注入的應(yīng)該很少坝冕，所以我們還得加入一段代碼實(shí)現(xiàn)這個(gè)功能徒探。
創(chuàng)建JobFactory
package com.reassure.quartz;
import org.quartz.spi.TriggerFiredBundle;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.config.AutowireCapableBeanFactory;
import org.springframework.scheduling.quartz.AdaptableJobFactory;
public class JobFactory extends AdaptableJobFactory {
@Autowired
private AutowireCapableBeanFactory capableBeanFactory;
@Override
protected Object createJobInstance(TriggerFiredBundle bundle) throws Exception {
//調(diào)用父類的方法
Object jobInstance = super.createJobInstance(bundle);
//進(jìn)行注入
capableBeanFactory.autowireBean(jobInstance);
return jobInstance;
}
}
將剛才applicationContext.xml的代碼改回最開始說的。然后寫一個(gè)jsp頁(yè)面喂窟，當(dāng)然测暗，如果閑麻煩就可以直接在瀏覽器地址欄上面訪問，
比如我這里是：localhost：8080/[項(xiàng)目名]/quartz/startQuartz?jobName=aaa&jobGroup=1",
然后這個(gè)叫aaa的定時(shí)器就啟動(dòng)了磨澡，定時(shí)時(shí)間我已經(jīng)硬編碼寫在了controller里面碗啄，根據(jù)需要可以修改，也可以直接在頁(yè)面上面?zhèn)髦颠^來稳摄；
刪除任務(wù)就是：localhost：8080/[項(xiàng)目名]/quartz/removeQuartz?jobName=aaa&jobGroup=1"稚字。
到這里quartz手動(dòng)開關(guān)就算是實(shí)現(xiàn)了，謝謝各位小伙伴們的觀看~
