Quartz.net配置文件实例及cron表达式详解

Quartz.Net小知识两则

1 从XML文件创建作业

最新版本的quartz.net支持直接从xml文件创建作业,使用起来很方便.配置文件的格式可以参考下面的例子

Code
<?xml version="1.0" encoding="UTF-8"?>
<quartz xmlns="http://quartznet.sourceforge.net/JobSchedulingData"
        xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
                 version="1.0"
                overwrite-existing-jobs="true">
  <job>
    <job-detail>
      <name>CaiJiJob</name>
      <group>jobGroup1</group>
      <job-type>WAT.PMS.JOB.Job.CaiJiJob, WAT.PMS.JOB</job-type>       
    </job-detail>

    <trigger>
      <simple>
        <name>simpleName</name>
        <group>simpleGroup</group>
        <description>SimpleTriggerDescription</description>  
        <job-name>jobName1</job-name>
        <job-group>jobGroup1</job-group>
        <start-time>1982-06-28T18:15:00.0Z</start-time>       
        <repeat-count>0</repeat-count>
      </simple>
    </trigger>
  </job>
  <job>
    <job-detail>
      <name>SavaDataJob</name>
      <group>jobGroup2</group>
      <job-type>WAT.PMS.JOB.Job.SaveDataJob, WAT.PMS.JOB</job-type>
    </job-detail>

    <trigger>
      <cron>
        <name>cronName2</name>
        <group>cronGroup2</group>
        <job-name>jobName2</job-name>
        <job-group>jobGroup2</job-group>
        <start-time>1982-06-28T18:15:00+02:00</start-time>
        <cron-expression>0 0/2 * * * ?</cron-expression>
      </cron>
    </trigger>
  </job>
</quartz>

2 Cron表达式知识.

"Cron-Expression"由6到7个用空格分开的字段组成的表达式这6或7个字段必须遵循下面的顺序和格式：

Seconds 0-59 , - * /
Minutes 0-59 ,- * /
Hours 0-23 , - * /
Day-of-month 1-31 , - * ? / L W C
Month 1-12 or JAN-DEC , - * /
Day-of-Week 1-7 or SUN-SAT , - * ? / L C #
Year (Optional) empty, 1970-2099 , - * /
*是一个通配符，表示任何值，用在Minutes字段中表示每分钟。
?只可以用在day-of-month或者Day-of-Week字段中，用来表示不指定特殊的值。
-用来表示一个范围，比如10-12用在Month中表示10到12月。
,用来表示附加的值，比如MON,WED,FRI在day-of-week字段中表示礼拜一和礼拜三和礼拜五。
/用来表示增量，比如0/15用在Minutes字段中表示从0分开始0和15和30和45分。
L只可以用在day-of-month或者Day-of-Week字段中，如果用在Day-of-month中，表示某个月的最后一天，1月则是表示31 号，2月则表示28号（非闰年），如果用在Day-of-Week中表示礼拜六（数字7）；但是如果L与数字组合在一起用在Day-of-month中， 比如6L，则表示某个月的最后一个礼拜六；
C
W
#

0 1 0 1 1-12 ?表示每月1号0点1分执行。
0 0 21 ? * 1表示每个礼拜天 21点0分执行。
0 0 0 * * ?表示每天0点0分执行。
0 * 22 * * ?表示每天22点开始每分钟
0 * 0-23 * * ?表示每天每分钟(0 * * * * ? 不可以？？？Doltter注释)

字段		允许值		允许的特殊字符
秒		0-59		, - * /
分		0-59		, - * /
小时		0-23		, - * /
日期		1-31		, - * ? / L W C
月份		1-12 或者 JAN-DEC		, - * /
星期		1-7 或者 SUN-SAT		, - * ? / L C #
年（可选）		留空, 1970-2099		, - * /

Cron 的小小说明

表示方式	意义
"0 0 12 * * ?"	Fire at 12pm (noon) every day
"0 15 10 ? * *"	Fire at 10:15am every day
"0 15 10 * * ?"	Fire at 10:15am every day
"0 15 10 * * ? *"	Fire at 10:15am every day
"0 15 10 * * ? 2005"	Fire at 10:15am every day during the year 2005
"0 * 14 * * ?"	Fire every minute starting at 2pm and ending at 2:59pm, every day
"0 0/5 14 * * ?"	Fire every 5 minutes starting at 2pm and ending at 2:55pm, every day
"0 0/5 14,18 * * ?"	Fire every 5 minutes starting at 2pm and ending at 2:55pm, AND fire every 5 minutes starting at 6pm and ending at 6:55pm, every day
"0 0-5 14 * * ?"	Fire every minute starting at 2pm and ending at 2:05pm, every day
"0 10,44 14 ? 3 WED"	Fire at 2:10pm and at 2:44pm every Wednesday in the month of March.
"0 15 10 ? * MON-FRI"	Fire at 10:15am every Monday, Tuesday, Wednesday, Thursday and Friday
"0 15 10 15 * ?"	Fire at 10:15am on the 15th day of every month
"0 15 10 L * ?"	Fire at 10:15am on the last day of every month
"0 15 10 ? * 6L"	Fire at 10:15am on the last Friday of every month
"0 15 10 ? * 6L"	Fire at 10:15am on the last Friday of every month
"0 15 10 ? * 6L 2002-2005"	Fire at 10:15am on every last friday of every month during the years 2002, 2003, 2004 and 2005
"0 15 10 ? * 6#3"	Fire at 10:15am on the third Friday of every month