Java Spring Timed task implementation code _java

Copy Code code as follows:

Import org.apache.log4j.*;
public class Taskjob {
public static Logger log = Logger
. GetLogger (Taskjob.class);
public void SayHello () {
TODO auto-generated Method Stub
try {
Log.info ("Work with task start ...");
Business logic Code Call
System.out.println ("Time [" + New Java.util.Date (). toLocaleString ()
+ "]-----> Hello! ");
Log.info ("Process task over!");
catch (Exception e) {
Log.error ("Processing Task occurrence exception", e);
}
}

}

2. The following is configured in spring:

Copy Code code as follows:

<?xml version= "1.0" encoding= "UTF-8"?>
<! DOCTYPE beans Public "-//spring//dtd bean//en" "Http://www.springframework.org/dtd/spring-beans.dtd" >
<beans>
<bean name= "taskjob" class= "util". Taskjob "/>

<bean id= "Methodinvokingjobdetail" class= " Org.springframework.scheduling.quartz.MethodInvokingJobDetailFactoryBean ">
<property name= "TargetObject" >
<ref bean= "Taskjob"/>
</property>
<property name= "Targetmethod" >
<value>SayHello</value>
</property>
</bean>
<!--configuration triggers-->
<bean id= "Crontrigger" class= "Org.springframework.scheduling.quartz.CronTriggerBean" >
<!--It is not possible to refer to taskjob directly in the attribute Jobdetail because he is asking for a jobdetail type of object, so we have to turn by Methodinvokingjobdetailfactorybean >
<property name= "Jobdetail" >
<ref bean= "Methodinvokingjobdetail"/>
</property>
<!--Daily 8 to 21 points every 1 minutes to trigger, specific instructions see Appendix-->
<property name= "Cronexpression" >
&LT;VALUE&GT;0 * 08-21 * *?</value>
</property>

</bean>

<bean class= "Org.springframework.scheduling.quartz.SchedulerFactoryBean" >
<!--add triggers-->
<property name= "Triggers" >
<list>
<ref local= "Crontrigger"/>
</list>
</property>
</bean>

</beans>

3. Test execution class, you can see the timer task running as soon as you load the spring configuration file.

Copy Code code as follows:

Package util;

Import Org.springframework.context.ApplicationContext;
Import Org.springframework.context.support.ClassPathXmlApplicationContext;

public class TestApp {

public static void Main (string[] args) {
TODO auto-generated Method Stub
SYSTEM.OUT.PRINTLN ("Load Spring configuration file ...");
ApplicationContext context = new Classpathxmlapplicationcontext ("Applicationcontext.xml");
SYSTEM.OUT.PRINTLN ("Load configuration file Complete!");
ApplicationContext context2 = new Classpathxmlapplicationcontext ("Test/timertask/quartztimer.xml");
}
}

If you want to run in a Web project, add the following code to the Web.xml:

Copy Code code as follows:

<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>/WEB-INF/classes/applicationContext.xml</param-value>
</context-param>
<context-param>
<param-name>log4jConfigLocation</param-name>
<param-value>/WEB-INF/log4j.properties</param-value>
</context-param>
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>

The following are some notes from the Web:
field allows special characters allowed by the value
seconds 0-59,-*/
0-59,-*/
Hour 0-23,-*/
Date 1-31,-*/L W C
Month 1 -12 or JAN-DEC,-*/
Week 1-7 or SUN-SAT,-*/L C #
Year (optional) leave blank, 1970-2099,-*/
Expression meaning
"0 0 12 * *?" every noon 1 2 point triggers
0 15 10? * * "10:15 every day to trigger
" 0 15 10 * * *? "every 10:15 trigger
" 0 15 10 * *? * "Trigger
0 15 10 * * Every day 10:15" 2005 "2005 every day 10:15 triggers
0 * 14 * *?" triggered every 1 minutes every day from 2 o'clock in the afternoon to 2:59
"0 0/5 14 * *?" triggers the
"5 0 0/5" Every 14 minutes during the Daily 2 o'clock in the afternoon to 2:55 period. , 18 * *? "triggers the
0 0-5 14 * * For every 5 minutes of the day from 2 o'clock in the afternoon to 2:55 and 6 o'clock in the afternoon to 6:55
" 1 10,44 0 in every 14 minutes of the Daily 2 o'clock in the afternoon to 2:05? " 3 WED "Wednesday 2:10 and 2:44 of each year of March triggers
0 15 10?" * Mon-fri "Monday to Friday 10:15 trigger
" 0 15 10 15 *? "15th 10:15 every month
" 0 L *? "The last day of the month 10:15 trigger
" 0 15 10? * 6L "The last Friday 10:15 of the month triggers
0 15 10? * 6L 2002-2005 "2002 to 2005 monthly last Friday 10:15 trigger
" 0 15 10? * 6#3 "The third Friday 10:15 of the month triggers