Spring+Quartz 从数据库中获取定时任务和定时时间，动态实现对定时任务的增删改查

本文转载自博客：http://blog.csdn.net/wwkms/article/details/48851005

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由于公司的新接得项目要实现一批数据的同步，通过外围厂商提供的一系列各个系统的webervices接口定时将数据同步到我们开发的共享平台上，由于厂商系统的数据是不断在变化以及各系统闲忙时的特点，所以定时同步任务的执行必须在时间上能够动态配置。因此，我们需要动态的从数据库中获取配置信息，以改变各个定时间的执行规则，废话不说了，上代码：(我利用的是ssh框架直接写的，框架搭建不再叙述)

1.创建数据表(我用的是mysql)

DROP TABLE IF EXISTS `t_wsdoc`;
CREATE TABLE `t_wsdoc` (
  `id` int(11) NOT NULL AUTO_INCREMENT,
  `triggername` varchar(50) NOT NULL,
  `jobdetailname` varchar(50) NOT NULL,
  `cronexpression` varchar(50) NOT NULL,
  `targetobject` varchar(50) NOT NULL,
  `methodname` varchar(50) NOT NULL,
  `concurrent` char(10) NOT NULL DEFAULT '0',
  `state` char(10) NOT NULL DEFAULT '1',
  `isspringbean` char(10) NOT NULL DEFAULT '0',
  `readme` varchar(100) DEFAULT NULL,
  `reserved1` varchar(50) DEFAULT NULL,
  `reserved2` varchar(50) DEFAULT NULL,
  `reserved3` varchar(50) DEFAULT NULL,
  `reserved4` varchar(50) DEFAULT NULL,
  `reserved5` varchar(50) DEFAULT NULL,
  `reserved6` varchar(50) DEFAULT NULL,
  `reserved7` varchar(50) DEFAULT NULL,
  `reserved8` varchar(50) DEFAULT NULL,
  `reserved9` varchar(50) DEFAULT NULL,
  `reserved10` varchar(50) DEFAULT NULL,
  PRIMARY KEY (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;

INSERT INTO `t_wsdoc` VALUES ('1', 'triggername', 'detailname', '0/5 * * * * ?', 'com.framework.timer.ISCSynAllData', 'run', '\'0\'', '\'1\'', '\'0\'', '说明', null, null, null, null, null, null, null, null, null, null);

2.创建表对应的实体类

package ...自定义;

import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.SequenceGenerator;
import javax.persistence.Table;

import com.framework.model.AbstractEntity;


@Entity
@Table(name = "WSDOC", schema = "")
public class Wsdoc extends AbstractEntity{

    /**
     *
     */
    private static final long serialVersionUID = 1L;
    private Long id;
    // 设置trigger名称
    private String triggername;
    //设置表达式
    private String cronexpression;
    // 设置Job名称
    private String jobdetailname;
    //任务类名
    private String targetobject;
    //类名对应的方法名
    private String methodname;
    //设置是否并发启动任务 0是false 非0是true
    private String concurrent;
    // 如果计划任务不存则为1 存在则为0
    private String state;
    private String readme;
    //是否是已经存在的springBean 1是  0 否
    private String isspringbean;
    /** 预留字段1 */
    private String reserved1;
    /** 预留字段2 */
    private String reserved2;
    /** 预留字段3 */
    private String reserved3;
    /** 预留字段4 */
    private String reserved4;
    /** 预留字段5 */
    private String reserved5;
    /** 预留字段6 */
    private String reserved6;
    /** 预留字段7 */
    private String reserved7;
    /** 预留字段8 */
    private String reserved8;
    /** 预留字段9 */
    private String reserved9;
    /** 预留字段10 */
    private String reserved10;
    // Constructors

    /** default constructor */
    public Wsdoc() {
    }

    /** full constructor */
    public Wsdoc(String triggername, String cronexpression,
            String jobdetailname, String targetobject, String methodname,
            String concurrent, String state, String readme,String isspringbean) {
        this.triggername = triggername;
        this.cronexpression = cronexpression;
        this.jobdetailname = jobdetailname;
        this.targetobject = targetobject;
        this.methodname = methodname;
        this.concurrent = concurrent;
        this.state = state;
        this.readme = readme;
        this.isspringbean=isspringbean;
    }
    @Id
    @Column(name = "ID", unique = true, nullable = false, precision = 10, scale = 0)
    //@GeneratedValue(strategy = GenerationType.SEQUENCE,generator="WSDOC_ID") //如果为oracle则可以创建一个序列，便于插入数据用
    //@SequenceGenerator(initialValue=0,name="WSDOC_ID",sequenceName="WSDOC_ID",allocationSize=1)
    public Long getId() {
        return id;
    }

    public void setId(Long id) {
        this.id = id;
    }

    @Column(name = "TRIGGERNAME",nullable = false,length=100)
    public String getTriggername() {
        return this.triggername;
    }

    public void setTriggername(String triggername) {
        this.triggername = triggername;
    }

    @Column(name = "CRONEXPRESSION",nullable = false,length=100)
    public String getCronexpression() {
        return this.cronexpression;
    }

    public void setCronexpression(String cronexpression) {
        this.cronexpression = cronexpression;
    }

    @Column(name = "JOBDETAILNAME",nullable = false,length=100)
    public String getJobdetailname() {
        return this.jobdetailname;
    }

    public void setJobdetailname(String jobdetailname) {
        this.jobdetailname = jobdetailname;
    }
    @Column(name = "TARGETOBJECT",nullable = false,length=100)
    public String getTargetobject() {
        return this.targetobject;
    }

    public void setTargetobject(String targetobject) {
        this.targetobject = targetobject;
    }
    @Column(name = "METHODNAME",nullable = false,length=100)
    public String getMethodname() {
        return this.methodname;
    }

    public void setMethodname(String methodname) {
        this.methodname = methodname;
    }
    @Column(name = "CONCURRENT",nullable = false,length=100)
    public String getConcurrent() {
        return this.concurrent;
    }

    public void setConcurrent(String concurrent) {
        this.concurrent = concurrent;
    }
    @Column(name = "STATE",nullable = false,length=100)
    public String getState() {
        return this.state;
    }

    public void setState(String state) {
        this.state = state;
    }
    @Column(name = "README",nullable = false,length=100)
    public String getReadme() {
        return this.readme;
    }

    public void setReadme(String readme) {
        this.readme = readme;
    }
    @Column(name = "ISSPRINGBEAN",nullable = false,length=100)
    public String getIsspringbean() {
        return isspringbean;
    }

    public void setIsspringbean(String isspringbean) {
        this.isspringbean = isspringbean;
    }
    @Column(name = "RESERVED_1",length=100)
    public String getReserved1() {
        return reserved1;
    }

    public void setReserved1(String reserved1) {
        this.reserved1 = reserved1;
    }
    @Column(name = "RESERVED_2",length=100)
    public String getReserved2() {
        return reserved2;
    }

    public void setReserved2(String reserved2) {
        this.reserved2 = reserved2;
    }
    @Column(name = "RESERVED_3",length=100)
    public String getReserved3() {
        return reserved3;
    }

    public void setReserved3(String reserved3) {
        this.reserved3 = reserved3;
    }
    @Column(name = "RESERVED_4",length=100)
    public String getReserved4() {
        return reserved4;
    }

    public void setReserved4(String reserved4) {
        this.reserved4 = reserved4;
    }
    @Column(name = "RESERVED_5",length=100)
    public String getReserved5() {
        return reserved5;
    }

    public void setReserved5(String reserved5) {
        this.reserved5 = reserved5;
    }
    @Column(name = "RESERVED_6",length=100)
    public String getReserved6() {
        return reserved6;
    }

    public void setReserved6(String reserved6) {
        this.reserved6 = reserved6;
    }
    @Column(name = "RESERVED_7",length=100)
    public String getReserved7() {
        return reserved7;
    }

    public void setReserved7(String reserved7) {
        this.reserved7 = reserved7;
    }
    @Column(name = "RESERVED_8",length=100)
    public String getReserved8() {
        return reserved8;
    }

    public void setReserved8(String reserved8) {
        this.reserved8 = reserved8;
    }
    @Column(name = "RESERVED_9",length=100)
    public String getReserved9() {
        return reserved9;
    }

    public void setReserved9(String reserved9) {
        this.reserved9 = reserved9;
    }
    @Column(name = "RESERVED_10",length=100)
    public String getReserved10() {
        return reserved10;
    }

    public void setReserved10(String reserved10) {
        this.reserved10 = reserved10;
    }



}

3.核心Java代码 

package com.framework.timer;

import java.text.ParseException;
import java.util.Date;
import java.util.List;

import org.apache.log4j.Logger;
import org.quartz.JobDetail;
import org.quartz.Scheduler;
import org.springframework.beans.BeansException;
import org.springframework.beans.factory.BeanFactory;
import org.springframework.beans.factory.BeanFactoryAware;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.scheduling.quartz.CronTriggerBean;
import org.springframework.scheduling.quartz.MethodInvokingJobDetailFactoryBean;

import cn.edu.svtcc.datas.model.Wsdoc;
import cn.edu.svtcc.datas.service.WsdocService;



public class QuartzManager implements BeanFactoryAware {
    private Logger log = Logger.getLogger(QuartzManager.class);
    private Scheduler scheduler;
    private static BeanFactory beanFactory = null;

    @Autowired
    private WsdocService wsdocService;

    @SuppressWarnings("unused")
    private void reScheduleJob() throws Exception, ParseException {
        // 通过查询数据库里计划任务来配置计划任务

        List quartzList = wsdocService.getAllTarger(); //从数据库中获取所有的配置信息，根据自己的获取方式来写，此不赘述

               Wsdoc tbcq=new Wsdoc();
    tbcq.setTriggername("triggername");
    tbcq.setCronexpression("0/5 * * * * ?");
    tbcq.setJobdetailname("detailname");
    tbcq.setTargetobject("com.framework.timer.ISCSynAllData");
    tbcq.setMethodname("run");
    tbcq.setConcurrent("1");
    tbcq.setState("1");
    tbcq.setReadme("readme");
    tbcq.setIsspringbean("0");
    quartzList.add(tbcq);*/
    //this.getConfigQuartz();
    if (quartzList != null && quartzList.size() > 0) {
        for (Wsdoc tbcq1 : quartzList) {
            configQuatrz(tbcq1);
        }
    }
}

public boolean configQuatrz(Wsdoc tbcq) {
    boolean result = false;
    try {
        // 运行时可通过动态注入的scheduler得到trigger
        CronTriggerBean trigger = (CronTriggerBean) scheduler.getTrigger(
                tbcq.getTriggername(), Scheduler.DEFAULT_GROUP);
        // 如果计划任务已存在则调用修改方法
        if (trigger != null) {
            change(tbcq, trigger);
        } else {
            // 如果计划任务不存在并且数据库里的任务状态为可用时,则创建计划任务
            if (tbcq.getState().equals("1")) {
                this.createCronTriggerBean(tbcq);
            }
        }
        result = true;
    } catch (Exception e) {
        result = false;
        e.printStackTrace();
    }

    return result;
}

public void change(Wsdoc tbcq, CronTriggerBean trigger)
        throws Exception {
    // 如果任务为可用
    if (tbcq.getState().equals("1")) {
        // 判断从DB中取得的任务时间和现在的quartz线程中的任务时间是否相等
        // 如果相等，则表示用户并没有重新设定数据库中的任务时间，这种情况不需要重新rescheduleJob
        if (!trigger.getCronExpression().equalsIgnoreCase(
                tbcq.getCronexpression())) {
            trigger.setCronExpression(tbcq.getCronexpression());
            scheduler.rescheduleJob(tbcq.getTriggername(),
                    Scheduler.DEFAULT_GROUP, trigger);
            log.info(new Date() + ": 更新" + tbcq.getTriggername() + "计划任务");
        }
    } else {
        // 不可用
        scheduler.pauseTrigger(trigger.getName(), trigger.getGroup());// 停止触发器
        scheduler.unscheduleJob(trigger.getName(), trigger.getGroup());// 移除触发器
        scheduler.deleteJob(trigger.getJobName(), trigger.getJobGroup());// 删除任务
        log.info(new Date() + ": 删除" + tbcq.getTriggername() + "计划任务");

    }

}

/**
 * 创建/添加计划任务
 *
 * @param tbcq
 *            计划任务配置对象
 * @throws Exception
 */
public void createCronTriggerBean(Wsdoc tbcq) throws Exception {
    // 新建一个基于Spring的管理Job类
    MethodInvokingJobDetailFactoryBean mjdfb = new MethodInvokingJobDetailFactoryBean();
    mjdfb.setName(tbcq.getJobdetailname());// 设置Job名称
    // 如果定义的任务类为Spring的定义的Bean则调用 getBean方法
    if (tbcq.getIsspringbean().equals("1")) {
        mjdfb.setTargetObject(beanFactory.getBean(tbcq.getTargetobject()));// 设置任务类
    } else {
        // 否则直接new对象
        mjdfb.setTargetObject(Class.forName(tbcq.getTargetobject())
                .newInstance());// 设置任务类
    }

    mjdfb.setTargetMethod(tbcq.getMethodname());// 设置任务方法
    mjdfb.setConcurrent(tbcq.getConcurrent().equals("0") ? false : true); // 设置是否并发启动任务
    mjdfb.afterPropertiesSet();// 将管理Job类提交到计划管理类
    // 将Spring的管理Job类转为Quartz管理Job类
    JobDetail jobDetail = new JobDetail();
    jobDetail = (JobDetail) mjdfb.getObject();
    jobDetail.setName(tbcq.getJobdetailname());
    scheduler.addJob(jobDetail, true); // 将Job添加到管理类
    // 新一个基于Spring的时间类
    CronTriggerBean c = new CronTriggerBean();
    c.setCronExpression(tbcq.getCronexpression());// 设置时间表达式
    c.setName(tbcq.getTriggername());// 设置名称
    c.setJobDetail(jobDetail);// 注入Job
    c.setJobName(tbcq.getJobdetailname());// 设置Job名称
    scheduler.scheduleJob(c);// 注入到管理类
    scheduler.rescheduleJob(tbcq.getTriggername(), Scheduler.DEFAULT_GROUP,
            c);// 刷新管理类
    log.info(new Date() + ": 新建" + tbcq.getTriggername() + "计划任务");
}

public Scheduler getScheduler() {
    return scheduler;
}

public void setScheduler(Scheduler scheduler) {
    this.scheduler = scheduler;
}

public void setBeanFactory(BeanFactory factory) throws BeansException {
    this.beanFactory = factory;

}

public BeanFactory getBeanFactory() {
    return beanFactory;
}

4.测试类代码

package com.framework.timer;

import java.util.Date;

import org.quartz.SchedulerException;



public class ISCSynAllData{

    public void run() throws SchedulerException{
         System.out.println("开始执行"+new Date());

     }
}

5.Spring.xml中的配置(标红的为核心配置)

xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xmlns:context="http://www.springframework.org/schema/context"
    xmlns:task="http://www.springframework.org/schema/task"
    xsi:schemaLocation="
    http://www.springframework.org/schema/beans
    http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
    http://www.springframework.org/schema/context
    http://www.springframework.org/schema/context/spring-context-3.0.xsd
    http://www.springframework.org/schema/task
    http://www.springframework.org/schema/task/spring-task-3.0.xsd
    ">


    <context:property-placeholder location="classpath:config.properties" />


    <context:component-scan base-package="com,cn" />




<span style="color:#ff0000;">

<bean id="quartzManagerBean" class="com.framework.timer.QuartzManager">
        <property name="scheduler" ref="schedulerManager" />
    bean>
    <bean id="quartzManagerJobDetail"
        class="org.springframework.scheduling.quartz.MethodInvokingJobDetailFactoryBean">
        <property name="targetObject" ref="quartzManagerBean" />
        <property name="targetMethod" value="reScheduleJob" />
        <property name="concurrent" value="false" />
    bean>

    <bean id="quartzManagerTrigger"
        class="org.springframework.scheduling.quartz.SimpleTriggerBean">
        <property name="jobDetail" ref="quartzManagerJobDetail" />

        <property name="startDelay" value="300000" />

        <property name="repeatInterval" value="60000" />
    bean>

    <bean id="schedulerManager" lazy-init="false" autowire="no"
        class="org.springframework.scheduling.quartz.SchedulerFactoryBean">
        <property name="triggers">
            <list>
                <ref bean="quartzManagerTrigger" />
            list>
        property>
    bean>
beans>span>

按照我以上配置流程把代码拷贝过去稍加修改即可实现！

demo代码下载地址：http://download.csdn.net/detail/wwkms/9152293

关于cronexpression时间表达式的说明，详见我的博客《Quartz CronTrigger最完整配置说明》