quartz监控日志（四）自定义QuartzJobBean来实现监控

某厂面试归来，发现自己落伍了！>>>

quartz监控日志（一） quartz监控日志（二）添加监听器 quartz监控日志（三）查看卡死线程堆栈 上面几章介绍了quartz监控的几种方式，下面再介绍一种监听方式：自定义QuartzJobBean

一、自定义QuartzJobBean

/**
 * 定时任务处理
 *
 * @author lipeng
 *
 */
@DisallowConcurrentExecution
public class ScheduleJob extends QuartzJobBean
{
    private static final Logger log = LoggerFactory.getLogger(ScheduleJob.class);

    private ThreadPoolTaskExecutor executor = SpringUtils.getBean("threadPoolTaskExecutor");

    private final static ISysJobLogService jobLogService = SpringUtils.getBean(ISysJobLogService.class);

    @Override
    protected void executeInternal(JobExecutionContext context) throws JobExecutionException
    {
        SysJob job = new SysJob();
        BeanUtils.copyBeanProp(job, context.getMergedJobDataMap().get(ScheduleConstants.TASK_PROPERTIES));

        SysJobLog jobLog = new SysJobLog();
        jobLog.setJobName(job.getJobName());
        jobLog.setJobGroup(job.getJobGroup());
        jobLog.setMethodName(job.getMethodName());
        jobLog.setMethodParams(job.getMethodParams());
        jobLog.setCreateTime(new Date());

        long startTime = System.currentTimeMillis();

        try
        {
            // 执行任务
            log.info("任务开始执行 - 名称：{} 方法：{}", job.getJobName(), job.getMethodName());
            ScheduleRunnable task = new ScheduleRunnable(job.getJobName(), job.getMethodName(), job.getMethodParams());
            Future<?> future = executor.submit(task);
            future.get();
            long times = System.currentTimeMillis() - startTime;
            // 任务状态 0：成功 1：失败
            jobLog.setStatus(Constants.SUCCESS);
            jobLog.setJobMessage(job.getJobName() + " 总共耗时：" + times + "毫秒");

            log.info("任务执行结束 - 名称：{} 耗时：{} 毫秒", job.getJobName(), times);
        }
        catch (Exception e)
        {
            log.info("任务执行失败 - 名称：{} 方法：{}", job.getJobName(), job.getMethodName());
            log.error("任务执行异常  - ：", e);
            long times = System.currentTimeMillis() - startTime;
            jobLog.setJobMessage(job.getJobName() + " 总共耗时：" + times + "毫秒");
            // 任务状态 0：成功 1：失败
            jobLog.setStatus(Constants.FAIL);
            jobLog.setExceptionInfo(StringUtils.substring(e.getMessage(), 0, 2000));
        }
        finally
        {
            jobLogService.addJobLog(jobLog);
        }
    }
}

SysJobLog

/**
 * 定时任务调度日志表 sys_job_log
 * 
 * @author lipeng
 */
public class SysJobLog extends BaseEntity
{
    private static final long serialVersionUID = 1L;

    /** ID */
    @Excel(name = "日志序号")
    private Long jobLogId;

    /** 任务名称 */
    @Excel(name = "任务名称")
    private String jobName;

    /** 任务组名 */
    @Excel(name = "任务组名")
    private String jobGroup;

    /** 任务方法 */
    @Excel(name = "任务方法")
    private String methodName;

    /** 方法参数 */
    @Excel(name = "方法参数")
    private String methodParams;

    /** 日志信息 */
    @Excel(name = "日志信息")
    private String jobMessage;

    /** 执行状态（0正常 1失败） */
    @Excel(name = "执行状态", readConverterExp = "0=正常,1=失败")
    private String status;

    /** 异常信息 */
    @Excel(name = "异常信息")
    private String exceptionInfo;

    public Long getJobLogId()
    {
        return jobLogId;
    }

    public void setJobLogId(Long jobLogId)
    {
        this.jobLogId = jobLogId;
    }

    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;
    }

    public String getMethodName()
    {
        return methodName;
    }

    public void setMethodName(String methodName)
    {
        this.methodName = methodName;
    }

    public String getMethodParams()
    {
        return methodParams;
    }

    public void setMethodParams(String methodParams)
    {
        this.methodParams = methodParams;
    }

    public String getJobMessage()
    {
        return jobMessage;
    }

    public void setJobMessage(String jobMessage)
    {
        this.jobMessage = jobMessage;
    }

    public String getStatus()
    {
        return status;
    }

    public void setStatus(String status)
    {
        this.status = status;
    }

    public String getExceptionInfo()
    {
        return exceptionInfo;
    }

    public void setExceptionInfo(String exceptionInfo)
    {
        this.exceptionInfo = exceptionInfo;
    }

    @Override
    public String toString() {
        return new ToStringBuilder(this,ToStringStyle.MULTI_LINE_STYLE)
            .append("jobLogId", getJobLogId())
            .append("jobName", getJobName())
            .append("jobGroup", getJobGroup())
            .append("methodName", getMethodName())
            .append("methodParams", getMethodParams())
            .append("jobMessage", getJobMessage())
            .append("status", getStatus())
            .append("exceptionInfo", getExceptionInfo())
            .append("createTime", getCreateTime())
            .toString();
    }
}

ScheduleRunnable

/**
 * 执行定时任务
 * 
 * @author lipeng
 *
 */
public class ScheduleRunnable implements Runnable
{
    private static final Logger log = LoggerFactory.getLogger(ScheduleRunnable.class);

    private Object target;
    private Method method;
    private String params;

    public ScheduleRunnable(String beanName, String methodName, String params)
            throws NoSuchMethodException, SecurityException
    {
        this.target = SpringUtils.getBean(beanName);
        this.params = params;

        if (StringUtils.isNotEmpty(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.isNotEmpty(params))
            {
                method.invoke(target, params);
            }
            else
            {
                method.invoke(target);
            }
        }
        catch (Exception e)
        {
            log.error("执行定时任务  - ：", e);
        }
    }
}

二、创建job

  /**
     * 创建定时任务
     */
    public static void createScheduleJob(Scheduler scheduler, SysJob job)
    {
        try
        {
            // 构建job信息
            JobDetail jobDetail = JobBuilder.newJob(ScheduleJob.class).withIdentity(getJobKey(job.getJobId())).build();

            // 表达式调度构建器
            CronScheduleBuilder cronScheduleBuilder = CronScheduleBuilder.cronSchedule(job.getCronExpression());
            cronScheduleBuilder = handleCronScheduleMisfirePolicy(job, cronScheduleBuilder);

            // 按新的cronExpression表达式构建一个新的trigger
            CronTrigger trigger = TriggerBuilder.newTrigger().withIdentity(getTriggerKey(job.getJobId()))
                    .withSchedule(cronScheduleBuilder).build();

            // 放入参数，运行时的方法可以获取
            jobDetail.getJobDataMap().put(ScheduleConstants.TASK_PROPERTIES, job);

            scheduler.scheduleJob(jobDetail, trigger);

            // 暂停任务
            if (job.getStatus().equals(ScheduleConstants.Status.PAUSE.getValue()))
            {
                pauseJob(scheduler, job.getJobId());
            }
        }
        catch (SchedulerException e)
        {
            log.error("createScheduleJob 异常：", e);
        }
        catch (TaskException e)
        {
            log.error("createScheduleJob 异常：", e);
        }
    }

三、将数据库中的job初始化

 /**
     * 项目启动时，初始化定时器
     */
    @PostConstruct
    public void init()
    {
        List<SysJob> jobList = jobMapper.selectJobAll();
        for (SysJob job : jobList)
        {
            CronTrigger cronTrigger = ScheduleUtils.getCronTrigger(scheduler, job.getJobId());
            // 如果不存在，则创建
            if (cronTrigger == null)
            {
                ScheduleUtils.createScheduleJob(scheduler, job);
            }
            else
            {
                ScheduleUtils.updateScheduleJob(scheduler, job);
            }
        }
    }

ScheduleUtils源代码如下：

/**
 * 定时任务工具类
 * 
 * @author lipeng
 *
 */
public class ScheduleUtils
{
    private static final Logger log = LoggerFactory.getLogger(ScheduleUtils.class);

    /**
     * 获取触发器key
     */
    public static TriggerKey getTriggerKey(Long jobId)
    {
        return TriggerKey.triggerKey(ScheduleConstants.TASK_CLASS_NAME + jobId);
    }

    /**
     * 获取jobKey
     */
    public static JobKey getJobKey(Long jobId)
    {
        return JobKey.jobKey(ScheduleConstants.TASK_CLASS_NAME + jobId);
    }

    /**
     * 获取表达式触发器
     */
    public static CronTrigger getCronTrigger(Scheduler scheduler, Long jobId)
    {
        try
        {
            return (CronTrigger) scheduler.getTrigger(getTriggerKey(jobId));
        }
        catch (SchedulerException e)
        {
            log.error("getCronTrigger 异常：", e);
        }
        return null;
    }

    /**
     * 创建定时任务
     */
    public static void createScheduleJob(Scheduler scheduler, SysJob job)
    {
        try
        {
            // 构建job信息
            JobDetail jobDetail = JobBuilder.newJob(ScheduleJob.class).withIdentity(getJobKey(job.getJobId())).build();

            // 表达式调度构建器
            CronScheduleBuilder cronScheduleBuilder = CronScheduleBuilder.cronSchedule(job.getCronExpression());
            cronScheduleBuilder = handleCronScheduleMisfirePolicy(job, cronScheduleBuilder);

            // 按新的cronExpression表达式构建一个新的trigger
            CronTrigger trigger = TriggerBuilder.newTrigger().withIdentity(getTriggerKey(job.getJobId()))
                    .withSchedule(cronScheduleBuilder).build();

            // 放入参数，运行时的方法可以获取
            jobDetail.getJobDataMap().put(ScheduleConstants.TASK_PROPERTIES, job);

            scheduler.scheduleJob(jobDetail, trigger);

            // 暂停任务
            if (job.getStatus().equals(ScheduleConstants.Status.PAUSE.getValue()))
            {
                pauseJob(scheduler, job.getJobId());
            }
        }
        catch (SchedulerException e)
        {
            log.error("createScheduleJob 异常：", e);
        }
        catch (TaskException e)
        {
            log.error("createScheduleJob 异常：", e);
        }
    }

    /**
     * 更新定时任务
     */
    public static void updateScheduleJob(Scheduler scheduler, SysJob job)
    {
        try
        {
            TriggerKey triggerKey = getTriggerKey(job.getJobId());

            // 表达式调度构建器
            CronScheduleBuilder cronScheduleBuilder = CronScheduleBuilder.cronSchedule(job.getCronExpression());
            cronScheduleBuilder = handleCronScheduleMisfirePolicy(job, cronScheduleBuilder);

            CronTrigger trigger = getCronTrigger(scheduler, job.getJobId());

            // 按新的cronExpression表达式重新构建trigger
            trigger = trigger.getTriggerBuilder().withIdentity(triggerKey).withSchedule(cronScheduleBuilder).build();

            // 参数
            trigger.getJobDataMap().put(ScheduleConstants.TASK_PROPERTIES, job);

            scheduler.rescheduleJob(triggerKey, trigger);

            // 暂停任务
            if (job.getStatus().equals(ScheduleConstants.Status.PAUSE.getValue()))
            {
                pauseJob(scheduler, job.getJobId());
            }

        }
        catch (SchedulerException e)
        {
            log.error("SchedulerException 异常：", e);
        }
        catch (TaskException e)
        {
            log.error("SchedulerException 异常：", e);
        }
    }

    /**
     * 立即执行任务
     */
    public static int run(Scheduler scheduler, SysJob job)
    {
        int rows = 0;
        try
        {
            // 参数
            JobDataMap dataMap = new JobDataMap();
            dataMap.put(ScheduleConstants.TASK_PROPERTIES, job);

            scheduler.triggerJob(getJobKey(job.getJobId()), dataMap);
            rows = 1;
        }
        catch (SchedulerException e)
        {
            log.error("run 异常：", e);
        }
        return rows;
    }

    /**
     * 暂停任务
     */
    public static void pauseJob(Scheduler scheduler, Long jobId)
    {
        try
        {
            scheduler.pauseJob(getJobKey(jobId));
        }
        catch (SchedulerException e)
        {
            log.error("pauseJob 异常：", e);
        }
    }

    /**
     * 恢复任务
     */
    public static void resumeJob(Scheduler scheduler, Long jobId)
    {
        try
        {
            scheduler.resumeJob(getJobKey(jobId));
        }
        catch (SchedulerException e)
        {
            log.error("resumeJob 异常：", e);
        }
    }

    /**
     * 删除定时任务
     */
    public static void deleteScheduleJob(Scheduler scheduler, Long jobId)
    {
        try
        {
            scheduler.deleteJob(getJobKey(jobId));
        }
        catch (SchedulerException e)
        {
            log.error("deleteScheduleJob 异常：", e);
        }
    }

    public static CronScheduleBuilder handleCronScheduleMisfirePolicy(SysJob job, CronScheduleBuilder cb)
            throws TaskException
    {
        switch (job.getMisfirePolicy())
        {
            case ScheduleConstants.MISFIRE_DEFAULT:
                return cb;
            case ScheduleConstants.MISFIRE_IGNORE_MISFIRES:
                return cb.withMisfireHandlingInstructionIgnoreMisfires();
            case ScheduleConstants.MISFIRE_FIRE_AND_PROCEED:
                return cb.withMisfireHandlingInstructionFireAndProceed();
            case ScheduleConstants.MISFIRE_DO_NOTHING:
                return cb.withMisfireHandlingInstructionDoNothing();
            default:
                throw new TaskException("The task misfire policy '" + job.getMisfirePolicy() + "' cannot be used in cron schedule tasks", Code.CONFIG_ERROR);
        }
    }
}

来源：oschina

链接：https://my.oschina.net/u/560547/blog/3196194