今天把项目中的一部分移出来,主要是实现定时器任务,定时任务是从数据库配置的的,所以采用spring读取数据库配置文件来实现定时器。
需要的JAR包 见上传文件
数据建立 见上传文件
数据库映射类:
package com.quartz;
public class DbsynConfigQuartz {
// Fields
private String triggername;
private String cronexpression;
private String jobdetailname;
private String targetobject;
private String methodname;
private String concurrent;
private String state;
private String readme;
private String isspringbean;
// Constructors
/** default constructor */
public DbsynConfigQuartz() {
}
/** minimal constructor */
public DbsynConfigQuartz(String triggername, String jobdetailname,
String targetobject, String concurrent, String state,String isspringbean) {
this.triggername = triggername;
this.jobdetailname = jobdetailname;
this.targetobject = targetobject;
this.concurrent = concurrent;
this.state = state;
this.isspringbean=isspringbean;
}
/** full constructor */
public DbsynConfigQuartz(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;
}
// Property accessors
public String getTriggername() {
return this.triggername;
}
public void setTriggername(String triggername) {
this.triggername = triggername;
}
public String getCronexpression() {
return this.cronexpression;
}
public void setCronexpression(String cronexpression) {
this.cronexpression = cronexpression;
}
public String getJobdetailname() {
return this.jobdetailname;
}
public void setJobdetailname(String jobdetailname) {
this.jobdetailname = jobdetailname;
}
public String getTargetobject() {
return this.targetobject;
}
public void setTargetobject(String targetobject) {
this.targetobject = targetobject;
}
public String getMethodname() {
return this.methodname;
}
public void setMethodname(String methodname) {
this.methodname = methodname;
}
public String getConcurrent() {
return this.concurrent;
}
public void setConcurrent(String concurrent) {
this.concurrent = concurrent;
}
public String getState() {
return this.state;
}
public void setState(String state) {
this.state = state;
}
public String getReadme() {
return this.readme;
}
public void setReadme(String readme) {
this.readme = readme;
}
public String getIsspringbean() {
return isspringbean;
}
public void setIsspringbean(String isspringbean) {
this.isspringbean = isspringbean;
}
}
连接数据库公共方法:
package com.util;
import java.io.File;
import java.sql.BatchUpdateException;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.ResultSetMetaData;
import java.sql.SQLException;
import java.sql.Statement;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Date;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import org.apache.log4j.Logger;
public class Connect {
private static int tag1 = 0;
private static Logger log = Logger.getLogger(Connect.class);
private static final SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
/**
* 获得数据连接
*
* @return
*/
public static Connection getCon(String name) {
Connection connection = null;
try {// 保证只进行一次初始化
if (tag1 == 0) {
tag1++;
Class.forName("org.logicalcobwebs.proxool.ProxoolDriver");
}
connection = DriverManager.getConnection("proxool." + name);
} catch (Exception e) {
e.printStackTrace();
}
return connection;
}
}
读取定时器触发类:
package com.quartz;
import java.sql.Connection;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
import java.text.ParseException;
import java.util.ArrayList;
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.scheduling.quartz.CronTriggerBean;
import org.springframework.scheduling.quartz.MethodInvokingJobDetailFactoryBean;
import com.util.Connect;
public class QuartzManager implements BeanFactoryAware {
private Logger log = Logger.getLogger(QuartzManager.class);
private Scheduler scheduler;
private static BeanFactory beanFactory = null;
// private ApplicationContext apc;
@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
DbsynConfigQuartz d= new DbsynConfigQuartz();
List
if (quartzList != null && quartzList.size() > 0) {
for (DbsynConfigQuartz tbcq : quartzList) {
configQuatrz(tbcq);
}
}
}
public boolean configQuatrz(DbsynConfigQuartz 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(DbsynConfigQuartz 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(DbsynConfigQuartz 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");
}
/**
* 查询数据库任务设置,返回列表
*
* @return 数据库任务设置列表
*/
public List
List
Connection con = null;
Statement smt = null;
ResultSet rs = null;
con = Connect.getCon("sys");
try {
if(con!=null) {
smt = con.createStatement();
con.setAutoCommit(false);
rs = smt
.executeQuery("select triggername,cronexpression,jobdetailname,targetobject,methodname,concurrent,state,readme,isspringbean from dbsyn_config_quartz");
while (rs.next()) {
DbsynConfigQuartz tbcq = new DbsynConfigQuartz();
tbcq.setTriggername(rs.getString("triggername"));
tbcq.setCronexpression(rs.getString("cronexpression"));
tbcq.setJobdetailname(rs.getString("jobdetailname"));
tbcq.setTargetobject(rs.getString("targetobject"));
tbcq.setMethodname(rs.getString("methodname"));
tbcq.setConcurrent(rs.getString("concurrent"));
tbcq.setState(rs.getString("state"));
tbcq.setReadme(rs.getString("readme"));
tbcq.setIsspringbean(rs.getString("isspringbean"));
result.add(tbcq);
}
rs.close();
}
}catch (SQLException e) {
e.printStackTrace();
}finally{
try {
con.close();
} catch (SQLException e) {
e.printStackTrace();
}
}
return result;
}
public Scheduler getScheduler() {
return scheduler;
}
public void setScheduler(Scheduler scheduler) {
this.scheduler = scheduler;
}
/*
* public ApplicationContext getApc() { return apc; }
*
* public void setApc(ApplicationContext apc) { this.apc = apc; }
*/
public void setBeanFactory(BeanFactory factory) throws BeansException {
this.beanFactory = factory;
}
public BeanFactory getBeanFactory() {
return beanFactory;
}
}
定时器调用方法类:
package com.client;
import org.apache.log4j.Logger;
public class DrvServiceImpl {
private static Logger log = Logger.getLogger(DrvServiceImpl.class);
public void getHz() {
System.out.println("调用成功");
return;
}
}
applicationContext-quartz.xml 配置定时器的spring文件
xmlns:p="http://www.springframework.org/schema/p"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:jee="http://www.springframework.org/schema/jee"
xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:aop="http://www.springframework.org/schema/aop"
xsi:schemaLocation="
http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.5.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-2.5.xsd
http://www.springframework.org/schema/jee http://www.springframework.org/schema/jee/spring-jee-2.5.xsd
http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-2.5.xsd
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-2.5.xsd">
proxool.xml数据库配置文件:
jdbc:oracle:thin:@localhost:1521:ajhz
select sysdate from dual
log4j.properties日志配置文件:
log4j.rootLogger= info,logfile
log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
log4j.appender.stdout.layout.ConversionPattern=%d %p [%c] - <%m>%n
log4j.appender.logfile=org.apache.log4j.RollingFileAppender
#log4j.appender.logfile.File=${catalina.base}/webapps/zdin/zdin.log
log4j.appender.logfile.MaxFileSize=512KB
log4j.appender.logfile.MaxBackupIndex=100
log4j.appender.logfile.layout=org.apache.log4j.PatternLayout
log4j.appender.logfile.layout.ConversionPattern=%d %p [%c] - %m%n
web.xml配置文件
xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee
http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd">
org.logicalcobwebs.proxool.configuration.ServletConfigurator
org.logicalcobwebs.proxool.admin.servlet.AdminServlet
org.springframework.web.context.ContextLoaderServlet