Quartz动态配置表达的方法

在项目中有一个需求，需要灵活配置调度任务时间，并能自由启动或停止调度。
有关调度的实现我就第一就想到了Quartz这个开源调度组件，因为很多项目使用过，Spring结合Quartz静态配置调度任务时间，非常easy。比如：每天凌晨几点定时运行一个程序，这只要在工程中的spring配置文件中配置好spring整合quartz的几个属性就好。

Spring配置文件

Xml代码??

1. <bean?id="jobDetail"?class="org.springframework.scheduling.quartz.MethodInvokingJobDetailFactoryBean">??
2. <property?name="targetObject"?ref="simpleService"?/>??
3. <property?name="targetMethod"?value="test"?/>??
4. </bean>??
5. <bean?id="cronTrigger"?class="org.springframework.scheduling.quartz.CronTriggerFactoryBean">??
6. <property?name="jobDetail"?ref="jobDetail"?/>??
7. <property?name="cronExpression"?value="0?0/50?*???*?*?*"?/>??
8. </bean>??
9. <bean??id="schedulerTrigger"?class="org.springframework.scheduling.quartz.SchedulerFactoryBean">??
10. <property?name="triggers">??
11. <list>??
12. <ref?bean="cronTrigger"/>???????
13. </list>??
14. </property>??
15. </bean>???

?这种配置就是对quartz的一种简单的使用了，调度任务会在spring启动的时候加载到内存中，按照cronTrigger中定义的 cronExpression定义的时间按时触发调度任务。但是这是quartz使用"内存"方式的一种配置，也比较常见，当然对于不使用spring的项目，也可以单独整合quartz。方法也比较简单，可以从quartz的doc中找到配置方式，或者看一下《Quartz Job Scheduling Framework 》。

但是对于想持久化调度任务的状态，并且灵活调整调度时间的方式来说，上面的内存方式就不能满足要求了，正如本文开始我遇到的情况，需要采用数据库方式集成 Quartz，这部分集成其实在《Quartz Job Scheduling Framework 》中也有较为详细的介绍，当然doc文档中也有，但是缺乏和spring集成的实例。

一、需要构建Quartz数据库表，建表脚本在Quartz发行包的docs\dbTables目录，里面有各种数据库建表脚本，例子中采用的Quartz 2.2.1版本，使用H2内存数据库，执行了Quartz发行包的docs\dbTables\tables_h2.sql建表。

二、建立Maven project，完成后目录如下

?

三、配置applicationContext.xml文件

Xml代码??

1. <?xml?version="1.0"?encoding="UTF-8"?>??
2. <beans?xmlns="http://www.springframework.org/schema/beans"??
3. ????xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"?xmlns:jdbc="http://www.springframework.org/schema/jdbc"??
4. ????xmlns:context="http://www.springframework.org/schema/context"??
5. ????xsi:schemaLocation="?????
6. ????http://www.springframework.org/schema/beans?http://www.springframework.org/schema/beans/spring-beans.xsd??
7. ???http://www.springframework.org/schema/jdbc?http://www.springframework.org/schema/jdbc/spring-jdbc.xsd??
8. ???http://www.springframework.org/schema/context?http://www.springframework.org/schema/context/spring-context.xsd??
9. ???">??
10. ????<context:component-scan?base-package="com.sundoctor"?/>?????????
11. ????<!--?使用H2内存数据库并创建quartz数据库表?-->??
12. ????<jdbc:embedded-database?id="dataSource"?type="H2">??
13. ????????<jdbc:script?location="classpath:db/tables_h2.sql"/>?????????
14. ????</jdbc:embedded-database>??
15. </beans>??

?
这里只是配置了数据库连接dataSource，为了简单方便，我使用H2内存数据库，执行tables_h2.sql创建quartz数据库表，还没有涉及到quartz有关配置，下面且听我慢慢道来。

四、实现动态定时任务
? 什么是动态定时任务：是由客户制定生成的，服务端只知道该去执行什么任务，但任务的定时是不确定的（是由客户制定）。
这样总不能修改配置文件每定制个定时任务就增加一个trigger吧，即便允许客户修改配置文件，但总需要重新启动web服务啊，研究了下Quartz在Spring中的动态定时，发现

Xml代码??

1. <bean?id="cronTrigger"?class="org.springframework.scheduling.quartz.CronTriggerFactoryBean">??
2. <property?name="jobDetail"?ref="jobDetail"?/>??
3. <property?name="cronExpression"?value="0?0/50?*???*?*?*"?/>??
4. </bean>???

?
?

中cronExpression是关键，如果可以动态设置cronExpression的值，就可以顺利解决问题了。这样我们就不能直接使用org.springframework.scheduling.quartz.CronTriggerFactoryBean，需要自己实现一个动态调度服务类，在其中构建CronTrigger或SimpleTrigger，动态配置时间。
动态调度服务接口：

Java代码??

1. package?com.sundoctor.quartz.service;??
2. ??
   ?
3. import?java.util.Date;??
4. ??
   ?
5. import?org.quartz.CronExpression;??
6. ??
   ?
7. public?interface?SchedulerService?{??
8. ????/**?
9. ?????*?根据?Quartz?Cron?Expression?调试任务?
10. ?????*??
11. ?????*[email protected]?cronExpression?
12. ?????*????????????Quartz?Cron?表达式，如?"0/10?*?*???*?*?*"等?
13. ?????*/??
14. ????void?schedule(String?cronExpression);??
15. ??
    ?
16. ????/**?
17. ?????*?根据?Quartz?Cron?Expression?调试任务?
18. ?????*??
19. ?????*[email protected]?name?
20. ?????*????????????Quartz?CronTrigger名称?
21. ?????*[email protected]?cronExpression?
22. ?????*????????????Quartz?Cron?表达式，如?"0/10?*?*???*?*?*"等?
23. ?????*/??
24. ????void?schedule(String?name,?String?cronExpression);??
25. ??
    ?
26. ????/**?
27. ?????*?根据?Quartz?Cron?Expression?调试任务?
28. ?????*??
29. ?????*[email protected]?name?
30. ?????*????????????Quartz?CronTrigger名称?
31. ?????*[email protected]?group?
32. ?????*????????????Quartz?CronTrigger组?
33. ?????*[email protected]?cronExpression?
34. ?????*????????????Quartz?Cron?表达式，如?"0/10?*?*???*?*?*"等?
35. ?????*/??
36. ????void?schedule(String?name,?String?group,?String?cronExpression);??
37. ??
    ?
38. ????/**?
39. ?????*?根据?Quartz?Cron?Expression?调试任务?
40. ?????*??
41. ?????*[email protected]?cronExpression?
42. ?????*????????????Quartz?CronExpression?
43. ?????*/??
44. ????void?schedule(CronExpression?cronExpression);??
45. ??
    ?
46. ????/**?
47. ?????*?根据?Quartz?Cron?Expression?调试任务?
48. ?????*??
49. ?????*[email protected]?name?
50. ?????*????????????Quartz?CronTrigger名称?
51. ?????*[email protected]?cronExpression?
52. ?????*????????????Quartz?CronExpression?
53. ?????*/??
54. ????void?schedule(String?name,?CronExpression?cronExpression);??
55. ??
    ?
56. ????/**?
57. ?????*?根据?Quartz?Cron?Expression?调试任务?
58. ?????*??
59. ?????*[email protected]?name?
60. ?????*????????????Quartz?CronTrigger名称?
61. ?????*[email protected]?group?
62. ?????*????????????Quartz?CronTrigger组?
63. ?????*[email protected]?cronExpression?
64. ?????*????????????Quartz?CronExpression?
65. ?????*/??
66. ????void?schedule(String?name,?String?group,?CronExpression?cronExpression);??
67. ??
    ?
68. ????/**?
69. ?????*?在startTime时执行调试一次?
70. ?????*??
71. ?????*[email protected]?startTime?
72. ?????*????????????调度开始时间?
73. ?????*/??
74. ????void?schedule(Date?startTime);??
75. ??
    ?
76. ????void?schedule(Date?startTime,?String?group);??
77. ??
    ?
78. ????/**?
79. ?????*?在startTime时执行调试一次?
80. ?????*??
81. ?????*[email protected]?name?
82. ?????*????????????Quartz?SimpleTrigger?名称?
83. ?????*[email protected]?startTime?
84. ?????*????????????调度开始时间?
85. ?????*/??
86. ????void?schedule(String?name,?Date?startTime);??
87. ??
    ?
88. ????void?schedule(String?name,?Date?startTime,?String?group);??
89. ??
    ?
90. ????/**?
91. ?????*?在startTime时执行调试，endTime结束执行调度?
92. ?????*??
93. ?????*[email protected]?startTime?
94. ?????*????????????调度开始时间?
95. ?????*[email protected]?endTime?
96. ?????*????????????调度结束时间?
97. ?????*/??
98. ????void?schedule(Date?startTime,?Date?endTime);??
99. ??
    ?
100. ????void?schedule(Date?startTime,?Date?endTime,?String?group);??
101. ??
     ?
102. ????/**?
103. ?????*?在startTime时执行调试，endTime结束执行调度?
104. ?????*??
105. ?????*[email protected]?name?
106. ?????*????????????Quartz?SimpleTrigger?名称?
107. ?????*[email protected]?startTime?
108. ?????*????????????调度开始时间?
109. ?????*[email protected]?endTime?
110. ?????*????????????调度结束时间?
111. ?????*/??
112. ????void?schedule(String?name,?Date?startTime,?Date?endTime);??
113. ??
     ?
114. ????void?schedule(String?name,?Date?startTime,?Date?endTime,?String?group);??
115. ??
     ?
116. ????/**?
117. ?????*?在startTime时执行调试，endTime结束执行调度，重复执行repeatCount次?
118. ?????*??
119. ?????*[email protected]?startTime?
120. ?????*????????????调度开始时间?
121. ?????*[email protected]?repeatCount?
122. ?????*????????????重复执行次数?
123. ?????*/??
124. ????void?schedule(Date?startTime,?int?repeatCount);??
125. ??
     ?
126. ????/**?
127. ?????*?在startTime时执行调试，endTime结束执行调度，重复执行repeatCount次?
128. ?????*??
129. ?????*[email protected]?startTime?
130. ?????*????????????调度开始时间?
131. ?????*[email protected]?endTime?
132. ?????*????????????调度结束时间?
133. ?????*[email protected]?repeatCount?
134. ?????*????????????重复执行次数?
135. ?????*/??
136. ????void?schedule(Date?startTime,?Date?endTime,?int?repeatCount);??
137. ??
     ?
138. ????void?schedule(Date?startTime,?Date?endTime,?int?repeatCount,?String?group);??
139. ??
     ?
140. ????/**?
141. ?????*?在startTime时执行调试，endTime结束执行调度，重复执行repeatCount次?
142. ?????*??
143. ?????*[email protected]?name?
144. ?????*????????????Quartz?SimpleTrigger?名称?
145. ?????*[email protected]?startTime?
146. ?????*????????????调度开始时间?
147. ?????*[email protected]?endTime?
148. ?????*????????????调度结束时间?
149. ?????*[email protected]?repeatCount?
150. ?????*????????????重复执行次数?
151. ?????*/??
152. ????void?schedule(String?name,?Date?startTime,?Date?endTime,?int?repeatCount);??
153. ??
     ?
154. ????void?schedule(String?name,?Date?startTime,?Date?endTime,?int?repeatCount,?String?group);??
155. ??
     ?
156. ????/**?
157. ?????*?在startTime时执行调试，endTime结束执行调度，重复执行repeatCount次，每隔repeatInterval秒执行一次?
158. ?????*??
159. ?????*[email protected]?startTime?
160. ?????*????????????调度开始时间?
161. ?????*??
162. ?????*[email protected]?repeatCount?
163. ?????*????????????重复执行次数?
164. ?????*[email protected]?repeatInterval?
165. ?????*????????????执行时间隔间?
166. ?????*/??
167. ????void?schedule(Date?startTime,?int?repeatCount,?long?repeatInterval);??
168. ??
     ?
169. ????/**?
170. ?????*?在startTime时执行调试，endTime结束执行调度，重复执行repeatCount次，每隔repeatInterval秒执行一次?
171. ?????*??
172. ?????*[email protected]?startTime?
173. ?????*????????????调度开始时间?
174. ?????*[email protected]?endTime?
175. ?????*????????????调度结束时间?
176. ?????*[email protected]?repeatCount?
177. ?????*????????????重复执行次数?
178. ?????*[email protected]?repeatInterval?
179. ?????*????????????执行时间隔间?
180. ?????*/??
181. ????void?schedule(Date?startTime,?Date?endTime,?int?repeatCount,?long?repeatInterval);??
182. ??
     ?
183. ????void?schedule(Date?startTime,?Date?endTime,?int?repeatCount,?long?repeatInterval,?String?group);??
184. ??
     ?
185. ????/**?
186. ?????*?在startTime时执行调试，endTime结束执行调度，重复执行repeatCount次，每隔repeatInterval秒执行一次?
187. ?????*??
188. ?????*[email protected]?name?
189. ?????*????????????Quartz?SimpleTrigger?名称?
190. ?????*[email protected]?startTime?
191. ?????*????????????调度开始时间?
192. ?????*[email protected]?endTime?
193. ?????*????????????调度结束时间?
194. ?????*[email protected]?repeatCount?
195. ?????*????????????重复执行次数?
196. ?????*[email protected]?repeatInterval?
197. ?????*????????????执行时间隔间?
198. ?????*/??
199. ????void?schedule(String?name,?Date?startTime,?Date?endTime,?int?repeatCount,?long?repeatInterval);??
200. ??
     ?
201. ????void?schedule(String?name,?Date?startTime,?Date?endTime,?int?repeatCount,?long?repeatInterval,?String?group);??
202. ??
     ?
203. ????/**?
204. ?????*?暂停触发器?
205. ?????*??
206. ?????*[email protected]?triggerName?
207. ?????*????????????触发器名称?
208. ?????*/??
209. ????void?pauseTrigger(String?triggerName);??
210. ??
     ?
211. ????/**?
212. ?????*?暂停触发器?
213. ?????*??
214. ?????*[email protected]?triggerName?
215. ?????*????????????触发器名称?
216. ?????*[email protected]?group?
217. ?????*????????????触发器组?
218. ?????*/??
219. ????void?pauseTrigger(String?triggerName,?String?group);??
220. ??
     ?
221. ????/**?
222. ?????*?恢复触发器?
223. ?????*??
224. ?????*[email protected]?triggerName?
225. ?????*????????????触发器名称?
226. ?????*/??
227. ????void?resumeTrigger(String?triggerName);??
228. ??
     ?
229. ????/**?
230. ?????*?恢复触发器?
231. ?????*??
232. ?????*[email protected]?triggerName?
233. ?????*????????????触发器名称?
234. ?????*[email protected]?group?
235. ?????*????????????触发器组?
236. ?????*/??
237. ????void?resumeTrigger(String?triggerName,?String?group);??
238. ??
     ?
239. ????/**?
240. ?????*?删除触发器?
241. ?????*??
242. ?????*[email protected]?triggerName?
243. ?????*????????????触发器名称?
244. ?????*[email protected]?
245. ?????*/??
246. ????boolean?removeTrigdger(String?triggerName);??
247. ??
     ?
248. ????/**?
249. ?????*?删除触发器?
250. ?????*??
251. ?????*[email protected]?triggerName?
252. ?????*????????????触发器名称?
253. ?????*[email protected]?group?
254. ?????*????????????触发器组?
255. ?????*[email protected]?
256. ?????*/??
257. ????boolean?removeTrigdger(String?triggerName,?String?group);??
258. }??

?

动态调度服务实现类：

Java代码??

1. package?com.sundoctor.quartz.service;??
2. ??
   ?
3. import?java.text.ParseException;??
4. import?java.util.Date;??
5. import?java.util.UUID;??
6. ??
   ?
7. import?org.quartz.CronExpression;??
8. import?org.quartz.JobDetail;??
9. import?org.quartz.Scheduler;??
10. import?org.quartz.SchedulerException;??
11. import?org.quartz.TriggerKey;??
12. import?org.quartz.impl.triggers.CronTriggerImpl;??
13. import?org.quartz.impl.triggers.SimpleTriggerImpl;??
14. import?org.springframework.beans.factory.annotation.Autowired;??
15. import?org.springframework.stereotype.Service;??
16. ??
    ?
17. @Service("schedulerService")??
18. public?class?SchedulerServiceImpl?implements?SchedulerService?{??
19. ??
    ?
20. ????private?static?final?String?NULLSTRING?=?null;??
21. ????private?static?final?Date?NULLDATE?=?null;??
22. ??
    ?
23. ????@Autowired??
24. ????private?Scheduler?scheduler;??
25. ????@Autowired??
26. ????private?JobDetail?jobDetail;??
27. ??
    ?
28. ????@Override??
29. ????public?void?schedule(String?cronExpression)?{??
30. ????????schedule(NULLSTRING,?cronExpression);??
31. ????}??
32. ??
    ?
33. ????@Override??
34. ????public?void?schedule(String?name,?String?cronExpression)?{??
35. ????????schedule(name,?NULLSTRING,?cronExpression);??
36. ????}??
37. ??
    ?
38. ????@Override??
39. ????public?void?schedule(String?name,?String?group,?String?cronExpression)?{??
40. ????????try?{??
41. ????????????schedule(name,?group,?new?CronExpression(cronExpression));??
42. ????????}?catch?(ParseException?e)?{??
43. ????????????throw?new?IllegalArgumentException(e);??
44. ????????}??
45. ????}??
46. ??
    ?
47. ????@Override??
48. ????public?void?schedule(CronExpression?cronExpression)?{??
49. ????????schedule(NULLSTRING,?cronExpression);??
50. ????}??
51. ??
    ?
52. ????@Override??
53. ????public?void?schedule(String?name,?CronExpression?cronExpression)?{??
54. ????????schedule(name,?NULLSTRING,?cronExpression);??
55. ????}??
56. ??
    ?
57. ????@Override??
58. ????public?void?schedule(String?name,?String?group,?CronExpression?cronExpression)?{??
59. ??
    ?
60. ????????if?(isValidExpression(cronExpression))?{??
61. ??
    ?
62. ????????????if?(name?==?null?||?name.trim().equals(""))?{??
63. ????????????????name?=?UUID.randomUUID().toString();??
64. ????????????}??
65. ??
    ?
66. ????????????CronTriggerImpl?trigger?=?new?CronTriggerImpl();??
67. ????????????trigger.setCronExpression(cronExpression);??
68. ??
    ?
69. ????????????TriggerKey?triggerKey?=?new?TriggerKey(name,?group);??
70. ??
    ?
71. ????????????trigger.setJobName(jobDetail.getKey().getName());??
72. ????????????trigger.setKey(triggerKey);??
73. ??
    ?
74. ????????????try?{??
75. ????????????????scheduler.addJob(jobDetail,?true);??
76. ????????????????if?(scheduler.checkExists(triggerKey))?{??
77. ????????????????????scheduler.rescheduleJob(triggerKey,?trigger);??
78. ????????????????}?else?{??
79. ????????????????????scheduler.scheduleJob(trigger);??
80. ????????????????}??
81. ????????????}?catch?(SchedulerException?e)?{??
82. ????????????????throw?new?IllegalArgumentException(e);??
83. ????????????}??
84. ????????}??
85. ????}??
86. ??
    ?
87. ????@Override??
88. ????public?void?schedule(Date?startTime)?{??
89. ????????schedule(startTime,?NULLDATE);??
90. ????}??
91. ??
    ?
92. ????@Override??
93. ????public?void?schedule(Date?startTime,?String?group)?{??
94. ????????schedule(startTime,?NULLDATE,?group);??
95. ????}??
96. ??
    ?
97. ????@Override??
98. ????public?void?schedule(String?name,?Date?startTime)?{??
99. ????????schedule(name,?startTime,?NULLDATE);??
100. ????}??
101. ??
     ?
102. ????@Override??
103. ????public?void?schedule(String?name,?Date?startTime,?String?group)?{??
104. ????????schedule(name,?startTime,?NULLDATE,?group);??
105. ????}??
106. ??
     ?
107. ????@Override??
108. ????public?void?schedule(Date?startTime,?Date?endTime)?{??
109. ????????schedule(startTime,?endTime,?0);??
110. ????}??
111. ??
     ?
112. ????@Override??
113. ????public?void?schedule(Date?startTime,?Date?endTime,?String?group)?{??
114. ????????schedule(startTime,?endTime,?0,?group);??
115. ????}??
116. ??
     ?
117. ????@Override??
118. ????public?void?schedule(String?name,?Date?startTime,?Date?endTime)?{??
119. ????????schedule(name,?startTime,?endTime,?0);??
120. ????}??
121. ??
     ?
122. ????@Override??
123. ????public?void?schedule(String?name,?Date?startTime,?Date?endTime,?String?group)?{??
124. ????????schedule(name,?startTime,?endTime,?0,?group);??
125. ????}??
126. ??
     ?
127. ????@Override??
128. ????public?void?schedule(Date?startTime,?int?repeatCount)?{??
129. ????????schedule(null,?startTime,?NULLDATE,?0);??
130. ????}??
131. ??
     ?
132. ????@Override??
133. ????public?void?schedule(Date?startTime,?Date?endTime,?int?repeatCount)?{??
134. ????????schedule(null,?startTime,?endTime,?0);??
135. ????}??
136. ??
     ?
137. ????@Override??
138. ????public?void?schedule(Date?startTime,?Date?endTime,?int?repeatCount,?String?group)?{??
139. ????????schedule(null,?startTime,?endTime,?0,?group);??
140. ????}??
141. ??
     ?
142. ????@Override??
143. ????public?void?schedule(String?name,?Date?startTime,?Date?endTime,?int?repeatCount)?{??
144. ????????schedule(name,?startTime,?endTime,?0,?0L);??
145. ????}??
146. ??
     ?
147. ????@Override??
148. ????public?void?schedule(String?name,?Date?startTime,?Date?endTime,?int?repeatCount,?String?group)?{??
149. ????????schedule(name,?startTime,?endTime,?0,?0L,?group);??
150. ????}??
151. ??
     ?
152. ????@Override??
153. ????public?void?schedule(Date?startTime,?int?repeatCount,?long?repeatInterval)?{??
154. ????????schedule(null,?startTime,?NULLDATE,?repeatCount,?repeatInterval);??
155. ????}??
156. ??
     ?
157. ????@Override??
158. ????public?void?schedule(Date?startTime,?Date?endTime,?int?repeatCount,?long?repeatInterval)?{??
159. ????????schedule(null,?startTime,?endTime,?repeatCount,?repeatInterval);??
160. ????}??
161. ??
     ?
162. ????@Override??
163. ????public?void?schedule(Date?startTime,?Date?endTime,?int?repeatCount,?long?repeatInterval,?String?group)?{??
164. ????????schedule(null,?startTime,?endTime,?repeatCount,?repeatInterval,?group);??
165. ????}??
166. ??
     ?
167. ????@Override??
168. ????public?void?schedule(String?name,?Date?startTime,?Date?endTime,?int?repeatCount,?long?repeatInterval)?{??
169. ????????schedule(name,?startTime,?endTime,?repeatCount,?repeatInterval,?NULLSTRING);??
170. ????}??
171. ??
     ?
172. ????@Override??
173. ????public?void?schedule(String?name,?Date?startTime,?Date?endTime,?int?repeatCount,?long?repeatInterval,?String?group)?{??
174. ??
     ?
175. ????????if?(this.isValidExpression(startTime))?{??
176. ??
     ?
177. ????????????if?(name?==?null?||?name.trim().equals(""))?{??
178. ????????????????name?=?UUID.randomUUID().toString();??
179. ????????????}??
180. ??
     ?
181. ????????????TriggerKey?triggerKey?=?new?TriggerKey(name,?group);??
182. ??
     ?
183. ????????????SimpleTriggerImpl?trigger?=?new?SimpleTriggerImpl();??
184. ????????????trigger.setKey(triggerKey);??
185. ????????????trigger.setJobName(jobDetail.getKey().getName());??
186. ??
     ?
187. ????????????trigger.setStartTime(startTime);??
188. ????????????trigger.setEndTime(endTime);??
189. ????????????trigger.setRepeatCount(repeatCount);??
190. ????????????trigger.setRepeatInterval(repeatInterval);??
191. ??
     ?
192. ????????????try?{??
193. ????????????????scheduler.addJob(jobDetail,?true);??
194. ????????????????if?(scheduler.checkExists(triggerKey))?{??
195. ????????????????????scheduler.rescheduleJob(triggerKey,?trigger);??
196. ????????????????}?else?{??
197. ????????????????????scheduler.scheduleJob(trigger);??
198. ????????????????}??
199. ????????????}?catch?(SchedulerException?e)?{??
200. ????????????????throw?new?IllegalArgumentException(e);??
201. ????????????}??
202. ????????}??
203. ????}??
204. ??
     ?
205. ????@Override??
206. ????public?void?pauseTrigger(String?triggerName)?{??
207. ????????pauseTrigger(triggerName,?NULLSTRING);??
208. ????}??
209. ??
     ?
210. ????@Override??
211. ????public?void?pauseTrigger(String?triggerName,?String?group)?{??
212. ????????try?{??
213. ????????????scheduler.pauseTrigger(new?TriggerKey(triggerName,?group));//?停止触发器??
214. ????????}?catch?(SchedulerException?e)?{??
215. ????????????throw?new?RuntimeException(e);??
216. ????????}??
217. ????}??
218. ??
     ?
219. ????@Override??
220. ????public?void?resumeTrigger(String?triggerName)?{??
221. ????????resumeTrigger(triggerName,?NULLSTRING);??
222. ????}??
223. ??
     ?
224. ????@Override??
225. ????public?void?resumeTrigger(String?triggerName,?String?group)?{??
226. ????????try?{??
227. ????????????scheduler.resumeTrigger(new?TriggerKey(triggerName,?group));//?重启触发器??
228. ????????}?catch?(SchedulerException?e)?{??
229. ????????????throw?new?RuntimeException(e);??
230. ????????}??
231. ????}??
232. ??
     ?
233. ????@Override??
234. ????public?boolean?removeTrigdger(String?triggerName)?{??
235. ????????return?removeTrigdger(triggerName,?NULLSTRING);??
236. ????}??
237. ??
     ?
238. ????@Override??
239. ????public?boolean?removeTrigdger(String?triggerName,?String?group)?{??
240. ????????TriggerKey?triggerKey?=?new?TriggerKey(triggerName,?group);??
241. ????????try?{??
242. ????????????scheduler.pauseTrigger(triggerKey);//?停止触发器??
243. ????????????return?scheduler.unscheduleJob(triggerKey);//?移除触发器??
244. ????????}?catch?(SchedulerException?e)?{??
245. ????????????throw?new?RuntimeException(e);??
246. ????????}??
247. ????}??
248. ??
     ?
249. ????private?boolean?isValidExpression(final?CronExpression?cronExpression)?{??
250. ??
     ?
251. ????????CronTriggerImpl?trigger?=?new?CronTriggerImpl();??
252. ????????trigger.setCronExpression(cronExpression);??
253. ??
     ?
254. ????????Date?date?=?trigger.computeFirstFireTime(null);??
255. ??
     ?
256. ????????return?date?!=?null?&&?date.after(new?Date());??
257. ????}??
258. ??
     ?
259. ????private?boolean?isValidExpression(final?Date?startTime)?{??
260. ??
     ?
261. ????????SimpleTriggerImpl?trigger?=?new?SimpleTriggerImpl();??
262. ????????trigger.setStartTime(startTime);??
263. ??
     ?
264. ????????Date?date?=?trigger.computeFirstFireTime(null);??
265. ??
     ?
266. ????????return?date?!=?null?&&?date.after(new?Date());??
267. ????}??
268. }??

?
?

SchedulerService 只有一个多态方法schedule，SchedulerServiceImpl实现SchedulerService接口，注入org.quartz.Schedulert和org.quartz.JobDetail，schedule方法可以动态配置org.quartz.CronExpression或org.quartz.SimpleTrigger调度时间。

五、实现自己的org.quartz.JobDetail

?
?

Java代码??

1. package?com.sundoctor.example.service;??
2. ??
   ?
3. import?org.quartz.JobExecutionContext;??
4. import?org.quartz.JobExecutionException;??
5. import?org.quartz.SchedulerException;??
6. import?org.quartz.Trigger;??
7. import?org.slf4j.Logger;??
8. import?org.slf4j.LoggerFactory;??
9. import?org.springframework.context.ApplicationContext;??
10. import?org.springframework.scheduling.quartz.QuartzJobBean;??
11. ??
    ?
12. public?class?MyQuartzJobBean?extends?QuartzJobBean?{??
13. ??
    ?
14. ????private?static?final?Logger?logger?=?LoggerFactory.getLogger(MyQuartzJobBean.class);??
15. ??
    ?
16. ????@Override??
17. ????protected?void?executeInternal(JobExecutionContext?jobexecutioncontext)?throws?JobExecutionException?{??
18. ????????Trigger?trigger?=?jobexecutioncontext.getTrigger();??
19. ????????String?triggerName?=?trigger.getKey().getName();??
20. ??
    ?
21. ????????SimpleService?simpleService?=?getApplicationContext(jobexecutioncontext).getBean("simpleService",??
22. ????????????????SimpleService.class);??
23. ????????simpleService.testMethod(triggerName);??
24. ??
    ?
25. ????}??
26. ??
    ?
27. ????private?ApplicationContext?getApplicationContext(final?JobExecutionContext?jobexecutioncontext)?{??
28. ????????try?{??
29. ????????????return?(ApplicationContext)?jobexecutioncontext.getScheduler().getContext().get("applicationContextKey");??
30. ????????}?catch?(SchedulerException?e)?{??
31. ????????????logger.error("jobexecutioncontext.getScheduler().getContext()?error!",?e);??
32. ????????????throw?new?RuntimeException(e);??
33. ????????}??
34. ????}??
35. ??
    ?
36. }??

?

MyQuartzJobBean继承org.springframework.scheduling.quartz.QuartzJobBean，SimpleService如下：

Java代码??

1. package?com.sundoctor.example.service;??
2. ??
   ?
3. import?org.slf4j.Logger;??
4. import?org.slf4j.LoggerFactory;??
5. import?org.springframework.stereotype.Service;??
6. ??
   ?
7. @Service("simpleService")??
8. public?class?SimpleService?{??
9. ??
   ?
10. ????private?static?final?Logger?logger?=?LoggerFactory.getLogger(SimpleService.class);??
11. ??
    ?
12. ????public?void?testMethod(String?triggerName)?{??
13. ????????//?这里执行定时调度业务??
14. ????????logger.info(triggerName);??
15. ????}??
16. ??
    ?
17. }??

SimpleService主要执行定时调度业务，在这里我只是简单打印一下log日志。
配置applicationContext-quartz.xml文件：

Xml代码??

1. <?xml?version="1.0"?encoding="UTF-8"?>??
2. <beans?xmlns="http://www.springframework.org/schema/beans"??
3. ????xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"??
4. ????xsi:schemaLocation="http://www.springframework.org/schema/beans?http://www.springframework.org/schema/beans/spring-beans.xsd">??
5. ??
   ?
6. ????<bean?name="quartzScheduler"??
7. ????????class="org.springframework.scheduling.quartz.SchedulerFactoryBean">??
8. ????????<property?name="dataSource">??
9. ????????????<ref?bean="dataSource"?/>??
10. ????????</property>??
11. ????????<property?name="applicationContextSchedulerContextKey"?value="applicationContextKey"?/>??
12. ????????<property?name="configLocation"?value="classpath:quartz.properties"?/>??
13. ????</bean>??
14. ??
    ?
15. ????<bean?id="jobDetail"?class="org.springframework.scheduling.quartz.JobDetailFactoryBean">??
16. ????????<property?name="jobClass">??
17. ????????????<value>com.sundoctor.example.service.MyQuartzJobBean</value>??
18. ????????</property>?????
19. ????????<property?name="durability"?value="true"?/>?????
20. ????</bean>??
21. ??
    ?
22. </beans>??

?
dataSource：项目中用到的数据源，里面包含了quartz用到的数据库表；
applicationContextSchedulerContextKey：
是org.springframework.scheduling.quartz.SchedulerFactoryBean这个类中把spring上下文以key/value的方式存放在了quartz的SchedulerContext，可以用applicationContextSchedulerContextKey所定义的key得到spring的ApplicationContext，然后就可使用ApplicationContext取得spring beans，使用方法参见MyQuartzJobBean；
configLocation：用于指明quartz的配置文件的位置，如果不用spring配置quartz的话，本身quartz是通过一个配置文件进行配置的，默认名称是quartz.properties，里面配置的参数在quartz的doc文档中都有介绍，可以调整quartz，我在项目中也用这个文件部分的配置了一些属性，代码如下：

Xml代码??

1. org.quartz.scheduler.instanceName?=?DefaultQuartzScheduler??
2. org.quartz.scheduler.rmi.export?=?false??
3. org.quartz.scheduler.rmi.proxy?=?false??
4. org.quartz.scheduler.wrapJobExecutionInUserTransaction?=?false??
5. ??
   ?
6. orgorg.quartz.threadPool.class?=?org.quartz.simpl.SimpleThreadPool??
7. org.quartz.threadPool.threadCount?=?10??
8. org.quartz.threadPool.threadPriority?=?5??
9. org.quartz.threadPool.threadsInheritContextClassLoaderOfInitializingThread?=?true??
10. ??
    ?
11. org.quartz.jobStore.misfireThreshold?=?60000??
12. ??
    ?
13. #orgorg.quartz.jobStore.class?=?org.quartz.simpl.RAMJobStore??
14. ??
    ?
15. orgorg.quartz.jobStore.class?=?org.quartz.impl.jdbcjobstore.JobStoreTX??
16. #orgorg.quartz.jobStore.driverDelegateClass=org.quartz.impl.jdbcjobstore.HSQLDBDelegate??
17. orgorg.quartz.jobStore.driverDelegateClass=org.quartz.impl.jdbcjobstore.StdJDBCDelegate??
18. #org.quartz.jobStore.useProperties?=?true??
19. org.quartz.jobStore.tablePrefix?=?QRTZ_???
20. org.quartz.jobStore.isClustered?=?false???
21. org.quartz.jobStore.maxMisfiresToHandleAtATime=1???

?
?

这里面没有数据源相关的配置部分，采用spring注入datasource的方式已经进行了配置。

六、测试
运行如下测试类

Java代码??

1. package?com.sundoctor.example.test;??
2. ??
   ?
3. import?java.text.ParseException;??
4. import?java.text.SimpleDateFormat;??
5. import?java.util.Date;??
6. ??
   ?
7. import?org.quartz.SchedulerException;??
8. import?org.springframework.context.ApplicationContext;??
9. import?org.springframework.context.support.ClassPathXmlApplicationContext;??
10. ??
    ?
11. import?com.sundoctor.quartz.service.SchedulerService;??
12. ??
    ?
13. public?class?MainTest?{??
14. ??
    ?
15. ????/**?
16. ?????*[email protected]?args?
17. ?????*[email protected]?SchedulerException?
18. ?????*/??
19. ????public?static?void?main(String[]?args)?throws?SchedulerException?{??
20. ??
    ?
21. ????????ApplicationContext?springContext?=?new?ClassPathXmlApplicationContext(new?String[]?{??
22. ????????????????"classpath:applicationContext.xml",?"classpath:applicationContext-quartz.xml"?});??
23. ????????SchedulerService?schedulerService?=?springContext.getBean("schedulerService",?SchedulerService.class);??
24. ??
    ?
25. ????????//?执行业务逻辑...??
26. ??
    ?
27. ????????//?设置高度任务??
28. ????????//?每10秒中执行调试一次??
29. ????????schedulerService.schedule("0/10?*?*???*?*?*");??
30. ??
    ?
31. ????????Date?startTime?=?parse("2014-08-19?16:33:00");??
32. ????????Date?endTime?=?parse("2014-08-22?21:10:00");??
33. ??
    ?
34. ????????//?2014-08-19?16:33:00开始执行调度??
35. ????????schedulerService.schedule(startTime);??
36. ??
    ?
37. ????????//?2014-08-19?16:33:00开始执行调度，2014-08-22?21:10:00结束执行调试??
38. ????????schedulerService.schedule(startTime,?endTime);??
39. ??
    ?
40. ????????//?2014-08-19?16:33:00开始执行调度，执行5次结束??
41. ????????schedulerService.schedule(startTime,?5);??
42. ??
    ?
43. ????????//?2014-08-19?16:33:00开始执行调度，每隔20秒执行一次，执行5次结束??
44. ????????schedulerService.schedule(startTime,?5,?20);??
45. ??
    ?
46. ????????//?等等，查看com.sundoctor.quartz.service.SchedulerService??
47. ??
    ?
48. ????}??
49. ??
    ?
50. ????private?static?Date?parse(String?dateStr)?{??
51. ????????SimpleDateFormat?format?=?new?SimpleDateFormat("yyyy-MM-dd?HH:mm:ss");??
52. ????????try?{??
53. ????????????return?format.parse(dateStr);??
54. ????????}?catch?(ParseException?e)?{??
55. ????????????throw?new?RuntimeException(e);??
56. ????????}??
57. ????}??
58. ??
    ?
59. }??

?
输出

Xml代码??

1. [2014-08-19?22:31:50]INFO??com.sundoctor.example.service.SimpleService(line:14)?-7e132a81-6d24-44e1-8d6c-15cdaeefb2ce??
2. [2014-08-19?22:32:00]INFO??com.sundoctor.example.service.SimpleService(line:14)?-7e132a81-6d24-44e1-8d6c-15cdaeefb2ce??
3. [2014-08-19?22:32:10]INFO??com.sundoctor.example.service.SimpleService(line:14)?-7e132a81-6d24-44e1-8d6c-15cdaeefb2ce??
4. [2014-08-19?22:32:20]INFO??com.sundoctor.example.service.SimpleService(line:14)?-7e132a81-6d24-44e1-8d6c-15cdaeefb2ce??
5. [2014-08-19?22:32:30]INFO??com.sundoctor.example.service.SimpleService(line:14)?-7e132a81-6d24-44e1-8d6c-15cdaeefb2ce??
6. [2014-08-19?22:32:40]INFO??com.sundoctor.example.service.SimpleService(line:14)?-7e132a81-6d24-44e1-8d6c-15cdaeefb2ce??

?
这样只是简单的将quartz trigger名称打印出来。

这样通过SchedulerService就可以动态配置调度时间。其实SchedulerService 还可扩展，比如可以注入多个JobDetail，调度不同的JobDetail。