java 多线程——quartz 定时调度的例子

浏览数：50 / 时间：2015年06月08日

java 多线程目录：

概述

第1部分配置

有关quartz的api文档地址：Quartz Enterprise Job Scheduler 1.8.6 API

主要接口目录：

重点看下Job,Scheduler,Trigger,JobDetail几个：

代表任务的类继承Job接口，该接口只有唯一一个方法 execute；当一个任务的触发器启动时，相应的调度器scheduler会调用该任务。

quartz并不保存一个实际的Job类，而是通过允许你定义一个JobDetail取代。

Scheduler代表JobDetails和Triggers的登记表，Scheduler由SchedulerFactory产生。

quartz的配置文件quartzConfig.xml如下：

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:security="http://www.springframework.org/schema/security"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:p="http://www.springframework.org/schema/p"
    xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx"
    xmlns:context="http://www.springframework.org/schema/context"
    xmlns:jee="http://www.springframework.org/schema/jee" xmlns:mvc="http://www.springframework.org/schema/mvc"
    xsi:schemaLocation="  
        http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.1.xsd
        http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.1.xsd  
        http://www.springframework.org/schema/security http://www.springframework.org/schema/security/spring-security-3.1.xsd  
        http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.1.xsd  
        http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.1.xsd  
        http://www.springframework.org/schema/cache http://www.springframework.org/schema/cache/spring-cache-3.1.xsd  
        http://www.springframework.org/schema/jdbc http://www.springframework.org/schema/jdbc/spring-jdbc-3.1.xsd  
        http://www.springframework.org/schema/jee http://www.springframework.org/schema/jee/spring-jee-3.1.xsd  
        http://www.springframework.org/schema/jms http://www.springframework.org/schema/jms/spring-jms-3.1.xsd  
        http://www.springframework.org/schema/lang http://www.springframework.org/schema/lang/spring-lang-3.1.xsd  
        http://www.springframework.org/schema/oxm http://www.springframework.org/schema/oxm/spring-oxm-3.1.xsd  
        http://www.springframework.org/schema/task http://www.springframework.org/schema/task/spring-task-3.1.xsd  
        http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-3.1.xsd
        http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.1.xsd">

    <!-- ====================================================================================== -->
    <!-- 拦截器配置文件 -->
    <!-- ====================================================================================== -->
<!--     <bean id="startQuartz" lazy-init="false" autowire="no" class="org.springframework.scheduling.quartz.SchedulerFactoryBean"> </bean> -->
    <!-- ====================================================================================== -->
    
     <!-- 要调用的工作类 -->
        <bean id="quartzJob" class="com.util.CallQuartz"></bean>
        <!-- 定义调用对象和调用对象的方法 -->
        <bean id="jobtask" class="org.springframework.scheduling.quartz.MethodInvokingJobDetailFactoryBean">
            <!-- 调用的类 -->
            <property name="targetObject">
                <ref bean="quartzJob"/>
            </property>
            <!-- 调用类中的方法 -->
            <property name="targetMethod">
                <value>callAllQuartz</value>
            </property>
        </bean>
        <!-- 定义触发时间 -->
        <bean id="doTime" class="org.springframework.scheduling.quartz.CronTriggerBean">
            <property name="jobDetail">
                <ref bean="jobtask"/>
            </property>
            <!-- cron表达式 -->
            <property name="cronExpression">
                <value>*/10 * * * * ?</value>
            </property>
        </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="startQuertz" lazy-init="false" autowire="no" class="org.springframework.scheduling.quartz.SchedulerFactoryBean">
            <property name="triggers">
                <list>
                    <ref bean="doTime"/>
                </list>
            </property>
        </bean>
    
    <!-- ====================================================================================== -->
</beans>

web.xml文件中加入相应上述加载配置文件路径。

第2部分代码示例

首先定义一个任务的类

  1 package com.util.vo;
  2 
  3 import java.io.IOException;
  4 import java.net.HttpURLConnection;
  5 import java.net.MalformedURLException;
  6 import java.net.URL;
  7 import java.util.ArrayList;
  8 import java.util.HashMap;
  9 import java.util.List;
 10 import java.util.Map;
 11 
 12 import org.apache.log4j.Logger;
 13 import org.quartz.Job;
 14 import org.quartz.JobExecutionContext;
 15 import org.quartz.JobExecutionException;
 16 
 17 
 18 /**
 19  * 
 20  * @ClassName: QuartzVo
 21  * 
 22  * @author Xingle
 23  * @date 2014-8-14 下午12:49:25
 24  */
 25 public class QuartzVo implements Job{
 26     
 27     public static int Id = 0;
 28     
 29     private static Logger logger = Logger.getLogger(QuartzVo.class);
 30     //缓存中任务列表
 31     public static List<QuartzVo> quartzList = new ArrayList<QuartzVo>();
 32     //缓存中任务map
 33     public static Map<String, QuartzVo> quartzMap = new HashMap<String, QuartzVo>();
 34     
 35         
 36     /**
 37      * id
 38      */
 39     public String id ;
 40     /**
 41      * 任务名称
 42      */
 43     public String jobTitle;
 44     /**
 45      * 调度路径
 46      */
 47     public String  jcallpath;
 48     /**
 49      * 触发表达式
 50      */
 51     public String jobcron;
 52     /**
 53     * @Fields s_date : 开始时间
 54     */
 55     public String s_date;
 56     /**
 57     * @Fields cycle : 循环标示：1 循环；2 单次
 58     */
 59     public String cycle;
 60     
 61     public String getId() {
 62         return id;
 63     }
 64     public void setId(String id) {
 65         this.id = id;
 66     }
 67     public String getJobTitle() {
 68         return jobTitle;
 69     }
 70     public void setJobTitle(String jobTitle) {
 71         this.jobTitle = jobTitle;
 72     }
 73     public String getJcallpath() {
 74         return jcallpath;
 75     }
 76     public void setJcallpath(String jcallpath) {
 77         this.jcallpath = jcallpath;
 78     }
 79     public String getJobcron() {
 80         return jobcron;
 81     }
 82     public void setJobcron(String jobcron) {
 83         this.jobcron = jobcron;
 84     }
 85     public String getCycle() {
 86         return cycle;
 87     }
 88     public void setCycle(String cycle) {
 89         this.cycle = cycle;
 90     }
 91     
 92     public String getS_date() {
 93         return s_date;
 94     }
 95     public void setS_date(String s_date) {
 96         this.s_date = s_date;
 97     }
 98     /**
 99      * 执行任务
100      * @Description: 
101      * @param arg0
102      * @throws JobExecutionException
103      * @author xingle
104      * @data 2014-8-14 下午12:51:35
105      */
106     @Override
107     public void execute(JobExecutionContext context) throws JobExecutionException {
108         String jobName = context.getJobDetail().getName();
109         logger.debug("定时任务【" + jobName + "】 将要执行 start！！");
110         QuartzVo quartzVo = QuartzVo.quartzMap.get(jobName);
111         String inurl = quartzVo.getJcallpath();
112         URL url = null;
113         HttpURLConnection conn = null;
114         try {
115             url = new URL(inurl);
116             conn = (HttpURLConnection) url.openConnection();
117         } catch (MalformedURLException e) {
118             e.printStackTrace();
119         } catch (IOException e) {
120             System.out.println("***************** 连接失败,程序地址 : " + inurl);
121             e.printStackTrace();
122         }
123         try {
124             if (conn.getResponseCode() != HttpURLConnection.HTTP_OK) {
125                 System.out.println("****************** 调度失败!!,程序地址 : " + inurl);
126             } else {
127                 System.out.println("定时任务【" + jobName + "】" + "已完成调度，程序地址: "
128                         + inurl);
129             }
130         } catch (IOException e) {
131             e.printStackTrace();
132         }
133         
134     }
135 
136 }

定义一个调用任务：

  1 package com.util;
  2 
  3 import java.io.BufferedReader;
  4 import java.io.File;
  5 import java.io.FileNotFoundException;
  6 import java.io.FileReader;
  7 import java.io.IOException;
  8 import java.util.ArrayList;
  9 import java.util.HashMap;
 10 import java.util.Iterator;
 11 import java.util.List;
 12 import java.util.Map;
 13 import java.util.Map.Entry;
 14 
 15 import org.apache.log4j.Logger;
 16 import org.springframework.beans.factory.annotation.Autowired;
 17 import org.springframework.beans.factory.annotation.Qualifier;
 18 
 19 
 20 import com.util.vo.QuartzVo;
 21 import com.whalin.MemCached.MemCachedClient;
 22 
 23 /**
 24  * 调用任务
 25  * @ClassName: CallQuartz
 26  * TODO
 27  * @author Xingle
 28  * @date 2014-8-14 下午12:48:44
 29  */
 30 public class CallQuartz {
 31     private static Logger logger = Logger.getLogger(CallQuartz.class);
 32     
 33     @Autowired 
 34     @Qualifier("memcachedClient")
 35     private MemCachedClient memClient;
 36         
 37     public void callAllQuartz(){
 38         List<QuartzVo> list =new ArrayList<QuartzVo>();
 39         Iterator<String> idIter = QuartzVo.quartzMap.keySet().iterator();
 40         String idStr = "";
 41         while(idIter.hasNext()){
 42             idStr = idStr+idIter.next()+",";
 43         }
 44         logger.info("当前任务有： "+idStr);
 45         String flag = "";
 46         Map<String,List<QuartzVo> > map = this.getNewJobs();
 47         Iterator<Entry<String, List<QuartzVo>>> iter = map.entrySet().iterator();
 48         while(iter.hasNext()){
 49             Entry<String, List<QuartzVo>> entry = iter.next();
 50             flag = entry.getKey();
 51             list =  entry.getValue();
 52         }
 53         //新增
 54         if("1".equals(flag)){
 55             logger.info("新增加定时任务的数量：【 "+list.size()+"】");
 56             for(int i =0;i<list.size();i++){
 57                 QuartzVo vo = list.get(i);    
 58                 QuartzVo.quartzMap.put(vo.getJobTitle(), vo);    
 59                 QuartzManager.addJob(vo.getJobTitle(), vo, vo.getJobcron());
 60                             
 61             }
 62         }
 63         else if("2".equals(flag)){
 64             logger.info("删除的定时任务的数量：【 "+list.size()+"】");
 65             for(int i =0;i<list.size();i++){
 66                 QuartzVo vo = list.get(i);            
 67                 QuartzManager.removeJob(vo.getJobTitle());
 68                 QuartzVo.quartzMap.remove(vo.getJobTitle());
 69             }
 70             
 71         }
 72         
 73     }
 74 
 75     /**
 76      * 获取任务
 77      * @return
 78      * @author xingle
 79      * @data 2014-8-14 下午12:59:58
 80      */
 81     private Map<String, List<QuartzVo>> getNewJobs() {
 82         //返回的map
 83         Map<String,List<QuartzVo>> returnMap=new HashMap<String,List<QuartzVo>>();
 84         List<QuartzVo> returnLs = new ArrayList<>();
 85         //文件列表
 86         List<QuartzVo> fileLs = new ArrayList<>();
 87         List<String> fileNameLs = new ArrayList<>();
 88         BufferedReader ins = null;
 89         File f = new File("D:\\test/tasklist1.txt");
 90         try {
 91             
 92             int i = QuartzVo.Id++;
 93             ins = new BufferedReader(new FileReader(f));
 94             String line = "";
 95             while ((line = ins.readLine()) != null) {
 96                 //增加一个是否执行标识，0 未执行
 97                 //line = line+"|0";
 98                 String[] task = line.split("\\|");
 99                 
100                 QuartzVo quartzVo = new QuartzVo();
101                 String id = "quarzJob_"+ i;
102                 quartzVo.setId(id);
103                 quartzVo.setJobTitle(task[0]);
104                 quartzVo.setJcallpath(task[1]);
105                 quartzVo.setJobcron(task[2]);
106                 quartzVo.setS_date(task[3]);
107                 quartzVo.setCycle(task[4]);
108                                 
109                 fileLs.add(quartzVo);
110                 fileNameLs.add(quartzVo.getJobTitle());            
111         }
112             ins.close();
113         } catch (FileNotFoundException e) {
114             e.printStackTrace();
115         } catch (IOException e) {
116             e.printStackTrace();
117         }
118         
119         String flag = "";        
120         int fileNum = fileLs.size();
121         int quarzNum = QuartzVo.quartzMap.size();
122         if(fileNum > quarzNum){
123             flag = "1";
124             for(int i =0;i<fileNum;i++){
125                 QuartzVo fileVo = fileLs.get(i);
126                 if(!QuartzVo.quartzMap.keySet().contains(fileVo.getJobTitle())){
127                     QuartzVo.quartzList.add(fileVo);
128                     //要增加的
129                     returnLs.add(fileVo);
130                 }
131             }
132         }
133         else if(fileNum<quarzNum){
134             flag = "2";
135             for(int i = 0;i<QuartzVo.quartzList.size() ; i++){
136                 if(!fileNameLs.contains(QuartzVo.quartzList.get(i).getJobTitle())){
137                     //需要要删除的任务
138                     returnLs.add(QuartzVo.quartzList.get(i));
139                 }
140             }
141             for(int i = 0;i<QuartzVo.quartzList.size() ; i++){
142                 QuartzVo vo = QuartzVo.quartzList.get(i);
143                 for(int j = 0;j<returnLs.size();j++){
144                     if(vo.getId().equals(returnLs.get(j).getId())){
145                         QuartzVo.quartzList.remove(i);
146                     }
147                 }
148             }
149         }
150         
151         returnMap.put(flag, returnLs);
152         return returnMap;
153     }
154 
155 }

任务管理：

 1 package com.util;
 2 
 3 import java.text.ParseException;
 4 import java.text.SimpleDateFormat;
 5 import java.util.Date;
 6 
 7 import org.apache.log4j.Logger;
 8 import org.quartz.CronTrigger;
 9 import org.quartz.JobDetail;
10 import org.quartz.Scheduler;
11 import org.quartz.SchedulerException;
12 import org.quartz.SchedulerFactory;
13 import org.quartz.SimpleTrigger;
14 import org.quartz.impl.StdSchedulerFactory;
15 
16 import com.util.vo.QuartzVo;
17 
18 
19 /**
20  * 任务管理
21  * @ClassName: QuartzManager
22  * 
23  * @author Xingle
24  * @date 2014-8-14 下午2:34:16
25  */
26 public class QuartzManager {
27     private static Logger logger = Logger.getLogger(QuartzManager.class);
28     
29     //Create an uninitialized StdSchedulerFactory.
30     private static SchedulerFactory sf = new StdSchedulerFactory();
31     
32     private static String TRIGGER_GROUP_NAME = "quartzTrigger";
33     
34     /**
35      * 添加任务
36      * @param jobName
37      * @param job
38      * @param time
39      * @author xingle
40      * @data 2014-8-14 下午7:45:09
41      */
42     public static void addJob(String jobName,QuartzVo job,String time){        
43         try {
44             Scheduler scheduler = sf.getScheduler();
45             
46             //任务名，任务组，任务执行类
47             JobDetail jobDetail = new JobDetail(jobName, jobName, job.getClass());
48 
49             if("1".equals(job.getCycle())){//循环
50                 CronTrigger trigger = new CronTrigger(jobName, jobName);
51                 trigger.setCronExpression(time);
52                 scheduler.scheduleJob(jobDetail, trigger);
53             }
54             else{//单次
55                 String s_Date = job.getS_date(); 
56                 logger.debug("*****时间："+s_Date);
57                 
58                 SimpleDateFormat formate= new SimpleDateFormat("yyyy-MM-dd HH:mm:ss"); 
59                 Date startTime = formate.parse(s_Date);    
60                 logger.debug("*****时间："+startTime);
61                 SimpleTrigger trigger = new SimpleTrigger(jobName, jobName, startTime);
62                 scheduler.scheduleJob(jobDetail, trigger);    
63             }
64             if(!scheduler.isShutdown()){
65                 scheduler.start();
66             }
67             logger.debug("*********【添加】定时任务【"+jobName+"】 加载完成！*****************");
68             
69             
70         } catch (SchedulerException e) {
71             e.printStackTrace();
72         } catch (ParseException e) {
73             e.printStackTrace();
74         }
75     }
76     
77     /**
78      * 删除任务
79      * @param jobName
80      * @author xingle
81      * @data 2014-8-14 下午7:45:16
82      */
83     public static void removeJob(String jobName){
84          try {
85             Scheduler sched = sf.getScheduler();
86             sched.pauseTrigger(jobName,jobName);//停止触发器
87             sched.unscheduleJob(jobName,jobName);//移除触发器
88             sched.deleteJob(jobName, jobName);
89         } catch (SchedulerException e) {
90             e.printStackTrace();
91         }
92          logger.debug("*********定时任务【"+jobName+"】 已删除完成！*****************");
93     }
94      
95 }

读取的任务简单为下：

任务1|http://www.baidu.com|0 0/1 * * * ?||1
任务4|http://www.iteye.com/problems/99952||2014-08-15 11:34:15|2
任务5|https://pomotodo.com/app/|0 0/1 * * * ?||1
任务3|http://www.w3school.com.cn/html5/|0 0/1 * * * ?||1
任务6|http://tool.oschina.net/apidocs/apidoc?api=jdk-zh|0 0/2 * * * ?||1

其中Cron 触发器的时间设置可以参考有关内容配置，

以上任务可名称不可以重复，任务可随时添加和删除。

执行结果（截取）：

中途删除任务3