java 多线程——quartz 定时调度的例子
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
我喜欢程序员，他们单纯、固执、容易体会到成就感；面对压力，能够挑灯夜战不眠不休；面对困难，能够迎难而上挑战自我。他
们也会感到困惑与傍徨，但每个程序员的心中都有一个比尔盖茨或是乔布斯的梦想“用智慧开创属于自己的事业”。我想说的是，其
实我是一个程序员
