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<Wsdoc> 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
">
<!-- 引入属性文件 -->
<context:property-placeholder location="classpath:config.properties" />
<!-- 自动扫描dao和service包(自动注入) -->
<context:component-scan base-package="com,cn" />
<!-- 定时任务配置 实现方式1，利用spring自带的定时器
<task:executor id="executor" pool-size="5" /> -->
<!-- 声明一个具有10个线程的池，每一个对象将获取同样的运行机会
<task:scheduler id="scheduler" pool-size="10" /> -->
<!-- 定时器开关 开始
<task:annotation-driven executor="executor" scheduler="scheduler" />-->
<!-- 定时器开关 结束-->
<!--数据同步 -->
<!--下面这种quartz定时器是为了实现人工对定时间的启用，停用，调用时间，和删除的操作 -->
<span style="color:#ff0000;"><!--实现方式二，利用 quartz实现定时器功能-->
<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>
<!-- 主定时计划 -->
<bean id="quartzManagerTrigger"
class="org.springframework.scheduling.quartz.SimpleTriggerBean">
<property name="jobDetail" ref="quartzManagerJobDetail" />
<!-- 延时1分钟 执行任务 -->
<property name="startDelay" value="300000" />
<!-- 任务执行周期 5分钟 -->
<property name="repeatInterval" value="60000" />
</bean>
<!-- 总管理类 如果将lazy-init='false'那么容器启动就会执行调度程序 -->
<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！
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