java中基于线层池Spring-quartz如何实现动态增删除改和暂停恢复定时任务

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注：本文中没有定时任务增删改查页面、保存数据库等操作的代码。根据实际需求自行完善

pom.xml

   org.springframework   spring-context-support   4.2.5.RELEASE   org.quartz-scheduler   quartz   2.2.1

spring-scheduler.xml

ApplicationContext.xml (spring配置文件)

ScheduleJobMode.java

package com.scheduler;import java.io.Serializable;import java.util.Date;/** * 定时任务mode */public class ScheduleJobMode implements Serializable {    private static final long serialVersionUID = 1L;    //任务调度参数key    public static final String JOB_PARAM_KEY = "JOB_PARAM_KEY";    //任务id    private String jobId;    //spring bean名称 bean名称不能为空    private String beanName;    //方法名 方法名称不能为空     private String methodName;    //参数    private String params;    //cron表达式    private String cronExpression;    //任务状态 1：正常，2：暂停    private String status;    //备注    private String remark;    //创建者    private String createName;    //创建时间    private Date createTime;    //最近更新人    private String modifierName;    //最近更新时间    private Date modifierTime;    public void setJobId(String jobId) {        this.jobId = jobId;    }    public String getJobId() {        return jobId;    }    public String getBeanName() {        return beanName;    }    public void setBeanName(String beanName) {        this.beanName = beanName;    }    public String getMethodName() {        return methodName;    }    public void setMethodName(String methodName) {        this.methodName = methodName;    }    public String getParams() {        return params;    }    public void setParams(String params) {        this.params = params;    }    public String getRemark() {        return remark;    }    public void setRemark(String remark) {        this.remark = remark;    }    public void setStatus(String status) {        this.status = status;    }    public String getStatus() {        return status;    }    public void setCron_Expression(String cronExpression) {        this.cronExpression = cronExpression;    }    public String getCron_Expression() {        return cronExpression;    }    public void setCreateTime(Date createTime) {        this.createTime = createTime;    }    public Date getCreateTime() {        return createTime;    }    public String getCreateName() {        return createName;    }    public void setCreateName(String createName) {        this.createName = createName;    }    public String getModifierName() {        return modifierName;    }    public void setModifierName(String modifierName) {        this.modifierName = modifierName;    }    public Date getModifierTime() {        return modifierTime;    }    public void setModifierTime(Date modifierTime) {        this.modifierTime = modifierTime;    }}

ScheduleJobLogMode.java

package com.scheduler;import java.io.Serializable;import java.util.Date;/** * 定时执行日志 */public class ScheduleJobLogMode implements Serializable {    private static final long serialVersionUID = 1L;    //日志id    private String logId;    //任务id    private String jobId;    //spring bean名称    private String beanName;    //方法名    private String methodName;    //参数    private String params;    //任务状态    0：成功    1：失败    private String status;    //失败信息    private String error;    //耗时(单位：毫秒)    private Integer times;    //创建时间    private Date createTime;    public String getLogId() {        return logId;    }    public void setLogId(String logId) {        this.logId = logId;    }    public String getJobId() {        return jobId;    }    public void setJobId(String jobId) {        this.jobId = jobId;    }    public String getBeanName() {        return beanName;    }    public void setBeanName(String beanName) {        this.beanName = beanName;    }    public String getMethodName() {        return methodName;    }    public void setMethodName(String methodName) {        this.methodName = methodName;    }    public String getParams() {        return params;    }    public void setParams(String params) {        this.params = params;    }    public String getStatus() {        return status;    }    public void setStatus(String status) {        this.status = status;    }    public String getError() {        return error;    }    public void setError(String error) {        this.error = error;    }    public Integer getTimes() {        return times;    }    public void setTimes(Integer times) {        this.times = times;    }    public Date getCreateTime() {        return createTime;    }    public void setCreateTime(Date createTime) {        this.createTime = createTime;    }}

ScheduleUtils.java

package com.scheduler;import com.wawj.fg.common.scheduler.ScheduleJob;import com.wawj.fg.common.scheduler.support.TaskSupport;import com.scheduler.ScheduleJobMode;import org.quartz.*;import org.slf4j.Logger;import org.slf4j.LoggerFactory;/** * 定时任务工具类 */public class ScheduleUtils {    private static final Logger logger = LoggerFactory.getLogger(ScheduleUtils.class);    private static final String JOB_NAME = "TASK_";    /**     * 获取触发器key     */    public static TriggerKey getTriggerKey(String jobId) {        return TriggerKey.triggerKey(JOB_NAME + jobId);    }    /**     * 获取jobKey     */    public static JobKey getJobKey(String jobId) {        return JobKey.jobKey(JOB_NAME + jobId);    }    /**     * 获取表达式触发器     */    public static CronTrigger getCronTrigger(Scheduler scheduler, String jobId) {        try {            return (CronTrigger) scheduler.getTrigger(getTriggerKey(jobId));        } catch (SchedulerException e) {            logger.info("获取定时任务CronTrigger出现异常", e);            return null;        }    }    /**     * 创建定时任务     */    public static void createScheduleJob(Scheduler scheduler, ScheduleJobMode scheduleJob) {        try {            //构建job信息            JobDetail jobDetail = JobBuilder.newJob(ScheduleJob.class).withIdentity(getJobKey(scheduleJob.getJobId())).build();            //表达式调度构建器            CronScheduleBuilder scheduleBuilder = CronScheduleBuilder.cronSchedule(scheduleJob.getCron_Expression())                    .withMisfireHandlingInstructionDoNothing();            //按新的cronExpression表达式构建一个新的trigger            CronTrigger trigger = TriggerBuilder.newTrigger().withIdentity(getTriggerKey(scheduleJob.getJobId())).withSchedule(scheduleBuilder).build();            //放入参数，运行时的方法可以获取            jobDetail.getJobDataMap().put(ScheduleJobMode.JOB_PARAM_KEY, scheduleJob);            scheduler.scheduleJob(jobDetail, trigger);            //暂停任务            if (scheduleJob.getStatus().equals(TaskSupport.TASK_STATUS_STOPPED)) {                pauseJob(scheduler, scheduleJob.getJobId());            }        } catch (SchedulerException e) {            logger.info("创建定时任务失败", e);        }    }    /**     * 更新定时任务     */    public static void updateScheduleJob(Scheduler scheduler, ScheduleJobMode scheduleJob) {        try {            TriggerKey triggerKey = getTriggerKey(scheduleJob.getJobId());            //表达式调度构建器            CronScheduleBuilder scheduleBuilder = CronScheduleBuilder.cronSchedule(scheduleJob.getCron_Expression())                    .withMisfireHandlingInstructionDoNothing();            CronTrigger trigger = getCronTrigger(scheduler, scheduleJob.getJobId());            if (null != trigger) {                //按新的cronExpression表达式重新构建trigger                trigger = trigger.getTriggerBuilder().withIdentity(triggerKey).withSchedule(scheduleBuilder).build();                //参数                trigger.getJobDataMap().put(ScheduleJobMode.JOB_PARAM_KEY, scheduleJob);                scheduler.rescheduleJob(triggerKey, trigger);                //暂停任务                if (scheduleJob.getStatus().equals(TaskSupport.TASK_STATUS_STOPPED)) {                    pauseJob(scheduler, scheduleJob.getJobId());                }            } else {                throw new NullPointerException();            }        } catch (SchedulerException e) {            logger.info("更新定时任务失败", e);        }    }    /**     * 立即执行任务     */    public static void run(Scheduler scheduler, ScheduleJobMode scheduleJob) {        try {            //参数            JobDataMap dataMap = new JobDataMap();            dataMap.put(ScheduleJobMode.JOB_PARAM_KEY, scheduleJob);            scheduler.triggerJob(getJobKey(scheduleJob.getJobId()), dataMap);        } catch (SchedulerException e) {            logger.info("立即执行定时任务失败", e);        }    }    /**     * 暂停任务     */    public static void pauseJob(Scheduler scheduler, String jobId) {        try {            scheduler.pauseJob(getJobKey(jobId));        } catch (SchedulerException e) {            logger.info("暂停定时任务失败", e);        }    }    /**     * 恢复任务     */    public static void resumeJob(Scheduler scheduler, String jobId) {        try {            scheduler.resumeJob(getJobKey(jobId));        } catch (SchedulerException e) {            logger.info("暂停定时任务失败", e);        }    }    /**     * 删除定时任务     */    public static void deleteScheduleJob(Scheduler scheduler, String jobId) {        try {            scheduler.deleteJob(getJobKey(jobId));        } catch (SchedulerException e) {            logger.info("删除定时任务失败", e);        }    }}

QuartzManager.java

package com.scheduler;import com.wawj.fg.common.scheduler.ScheduleUtils;import com.wawj.fg.model.baseinfo.scheduler.ScheduleJobMode;import org.quartz.CronTrigger;import org.quartz.Scheduler;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.scheduling.quartz.SchedulerFactoryBean;import org.springframework.stereotype.Component;import javax.annotation.PostConstruct;import java.util.HashMap;import java.util.List;@Componentpublic class QuartzManager {    @Autowired    private SchedulerFactoryBean schedulerFactoryBean;    /**     * 项目启动时，初始化定时器     */    @PostConstruct    public void init() {        //查询保存到数据的定时任务，本文没有操作数据代码，可自行完善        List scheduleJobList = schedulerJobDao.queryList(new HashMap());        Scheduler scheduler = schedulerFactoryBean.getScheduler();        for (ScheduleJobMode scheduleJob : scheduleJobList) {            CronTrigger cronTrigger = ScheduleUtils.getCronTrigger(scheduler, scheduleJob.getJobId());            //如果不存在，则创建            if (cronTrigger == null) {                ScheduleUtils.createScheduleJob(scheduler, scheduleJob);            } else {                ScheduleUtils.updateScheduleJob(scheduler, scheduleJob);            }        }    }    /**     * 创建定时器     */    public void createScheduleJob(ScheduleJobMode scheduleJob) {        Scheduler scheduler = schedulerFactoryBean.getScheduler();        ScheduleUtils.createScheduleJob(scheduler, scheduleJob);    }    /**     * 更新定时器     */    public void update(ScheduleJobMode scheduleJob) {        Scheduler scheduler = schedulerFactoryBean.getScheduler();        ScheduleUtils.updateScheduleJob(scheduler, scheduleJob);    }    /**     * 删除定时器     */    public void deleteBatch(String[] jobIds) {        Scheduler scheduler = schedulerFactoryBean.getScheduler();        for (String jobId : jobIds) {            ScheduleUtils.deleteScheduleJob(scheduler, jobId);        }    }    /**     * 立刻执行一下定时器     */    public void run(String[] jobIds) {        Scheduler scheduler = schedulerFactoryBean.getScheduler();        for (String jobId : jobIds) {            //queryObject(jobId) 是从数据库中查询出对象            ScheduleUtils.run(scheduler, queryObject(jobId));        }    }    /**     * 暂停定时任务     */    public void pause(String[] jobIds) {        Scheduler scheduler = schedulerFactoryBean.getScheduler();        for (String jobId : jobIds) {            ScheduleUtils.pauseJob(scheduler, jobId);        }    }    /**     * 恢复定时任务     */    public void resume(String[] jobIds) {        Scheduler scheduler = schedulerFactoryBean.getScheduler();        for (String jobId : jobIds) {            ScheduleUtils.resumeJob(scheduler, jobId);        }    }}

SpringUtils.java

package com.scheduler;import com.wawj.fg.util.SpringContextUtils;import org.springframework.beans.BeansException;import org.springframework.context.ApplicationContext;import org.springframework.context.ApplicationContextAware;import org.springframework.stereotype.Component;/** * Spring Context 工具类 */@Componentpublic class SpringUtils implements ApplicationContextAware {    private static ApplicationContext applicationContext;    @Override    public void setApplicationContext(ApplicationContext applicationContext)            throws BeansException {        SpringContextUtils.applicationContext = applicationContext;    }    public static Object getBean(String name) {        return applicationContext.getBean(name);    }    public static  T getBean(String name, Class requiredType) {        return applicationContext.getBean(name, requiredType);    }    public static boolean containsBean(String name) {        return applicationContext.containsBean(name);    }    public static boolean isSingleton(String name) {        return applicationContext.isSingleton(name);    }    public static Class getType(String name) {        return applicationContext.getType(name);    }}

ScheduleRunnable.java

package com.scheduler;import java.lang.reflect.Method;import org.apache.commons.lang.StringUtils;import org.apache.log4j.Logger;import org.springframework.util.ReflectionUtils;import com.scheduler;.SpringUtils;/** * 执行定时任务 */public class ScheduleRunnable implements Runnable {        private static final Logger logger = Logger.getLogger(ScheduleRunnable.class);    //类名        private Object target;    //方法名        private Method method;    //参数        private String params;                public ScheduleRunnable(String beanName, String methodName, String params) throws NoSuchMethodException{                this.target = SpringUtils.getBean(beanName);                this.params = params;                                if(StringUtils.isNotBlank(params)){                        this.method = target.getClass().getDeclaredMethod(methodName, String.class);                }else{                        this.method = target.getClass().getDeclaredMethod(methodName);                }        }        @Override        public void run() {                try {                        ReflectionUtils.makeAccessible(method);                        if(StringUtils.isNotBlank(params)){                                method.invoke(target, params);                        }else{                                method.invoke(target);                        }                }catch (Exception e) {                        logger.error("执行定时任务失败",e);                        throw new RuntimeException();                }        }}

ScheduleJob.java

package com.scheduler;import com.wawj.fg.common.scheduler.ScheduleRunnable;import com.wawj.fg.model.baseinfo.scheduler.ScheduleJobLogMode;import com.wawj.fg.model.baseinfo.scheduler.ScheduleJobMode;import com.wawj.fg.service.baseinfo.scheduler.ScheduleJobLogService;import com.wawj.fg.util.SpringContextUtils;import com.wawj.fg.util.UUIDUtil;import org.apache.log4j.Logger;import org.quartz.JobExecutionContext;import org.quartz.JobExecutionException;import org.springframework.scheduling.quartz.QuartzJobBean;import java.util.Date;import java.util.concurrent.ExecutorService;import java.util.concurrent.Executors;import java.util.concurrent.Future;/** * 定时任务 */public class ScheduleJob extends QuartzJobBean {    private static final Logger logger = Logger.getLogger(ScheduleJob.class);    //创建线层池 （创建一个单线程化的线程池）    private ExecutorService service = Executors.newSingleThreadExecutor();    @Override    protected void executeInternal(JobExecutionContext context) throws JobExecutionException {        ScheduleJobMode scheduleJob = (ScheduleJobMode) context.getMergedJobDataMap()                .get(ScheduleJobMode.JOB_PARAM_KEY);        //获取spring bean        ScheduleJobLogService scheduleJobLogService = (ScheduleJobLogService) SpringContextUtils.getBean("scheduleJobLogService");        //数据库保存执行记录        ScheduleJobLogMode log = new ScheduleJobLogMode();        log.setLogId(UUIDUtil.getUUID());        log.setJobId(scheduleJob.getJobId());        log.setBeanName(scheduleJob.getBeanName());        log.setMethodName(scheduleJob.getMethodName());        log.setParams(scheduleJob.getParams());        log.setCreateTime(new Date());        //任务开始时间        long startTime = System.currentTimeMillis();        try {            //执行任务            logger.info("任务准备执行，任务ID：" + scheduleJob.getJobId());            ScheduleRunnable task = new ScheduleRunnable(scheduleJob.getBeanName(),                    scheduleJob.getMethodName(), scheduleJob.getParams());            Future future = service.submit(task);            future.get();            //任务执行总时长            long times = System.currentTimeMillis() - startTime;            log.setTimes((int) times);            //任务状态    0：成功    1：失败            log.setStatus("0");            logger.info("任务执行完毕，任务ID：" + scheduleJob.getJobId() + "  总共耗时：" + times + "毫秒");        } catch (Exception e) {            logger.error("任务执行失败，任务ID：" + scheduleJob.getJobId(), e);            //任务执行总时长            long times = System.currentTimeMillis() - startTime;            log.setTimes((int) times);            //任务状态    0：成功    1：失败            log.setStatus("1");            log.setError(scheduleJob.getBeanName() + "." + scheduleJob.getMethodName());        } finally {            scheduleJobLogService.save(log);        }    }}

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