Quartz getting started simple case, quartz getting started

Quartz getting started simple case, quartz getting started

Quartz is a job scheduling framework. It can trigger a task within the specified time.

 

Case:

The cases here are developed based on Quartz 2.2.3, Maven, and spring.

Introduce Maven-related dependencies in the pom. xml file

 

1 <project xmlns = "http://maven.apache.org/POM/4.0.0" xmlns: xsi = "http://www.w3.org/2001/XMLSchema-instance" 2 xsi: schemaLocation = "http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"> 3 <modelVersion> 4.0.0 </modelVersion> 4 <groupId> cn. wy </groupId> 5 <artifactId> FristQuartz </artifactId> 6 <version> 0.0.1-SNAPSHOT </version> 7 <! -- Define the version of the specified jar using properties --> 8 <properties> 9 <spring. version> 4.2.4.RELEASE </spring. version> 10 <slf4j. version> 1.6.6 </slf4j. version> 11 <log4j. version> 1.2.12 </log4j. version> 12 </properties> 13 14 <dependencies> 15 <dependency> 16 <groupId> org. springframework </groupId> 17 <artifactId> spring-context </artifactId> 18 <version >$ {spring. version} </version> 19 </dependency> 20 <dependency> 21 <groupId> org. springframework </ GroupId> 22 <artifactId> spring-context-support </artifactId> 23 <version >$ {spring. version }</version> 24 </dependency> 25 <dependency> 26 <groupId> org. springframework </groupId> 27 <artifactId> spring-orm </artifactId> 28 <version >$ {spring. version} </version> 29 </dependency> 30 <dependency> 31 <groupId> org. springframework </groupId> 32 <artifactId> spring-beans </artifactId> 33 <version >$ {spring. version} </version> 34 </Dependency> 35 <dependency> 36 <groupId> org. springframework </groupId> 37 <artifactId> spring-core </artifactId> 38 <version >$ {spring. version} </version> 39 </dependency> 40 <dependency> 41 <groupId> org. aspectj </groupId> 42 <artifactId> aspectjweaver </artifactId> 43 <version> 1.7.4 </version> 44 </dependency> 45 <! -- Log start --> 46 <dependency> 47 <groupId> log4j </groupId> 48 <artifactId> log4j </artifactId> 49 <version >$ {log4j. version} </version> 50 </dependency> 51 <dependency> 52 <groupId> org. slf4j </groupId> 53 <artifactId> slf4j-api </artifactId> 54 <version >$ {slf4j. version} </version> 55 </dependency> 56 57 <dependency> 58 <groupId> org. slf4j </groupId> 59 <artifactId> slf4j-log4j12 </artifactId> 60 <version >$ {slf4j. version} </Version> 61 </dependency> 62 <! -- Introduced junit support --> 63 <dependency> 64 <groupId> junit </groupId> 65 <artifactId> junit </artifactId> 66 <version> 4.10 </version> 67 <scope> test </scope> 68 </dependency> 69 70 <! -- Introduce the Z dependency --> 71 <dependency> 72 <groupId> org. quartz-scheduler </groupId> 73 <artifactId> quartz </artifactId> 74 <version> 2.2.3 </version> 75 </dependency> 76 <dependency> 77 <groupId> org. quartz-scheduler </groupId> 78 <artifactId> quartz-jobs </artifactId> 79 <version> 2.2.3 </version> 80 </dependency> 81 </dependencies> 82 </ project>

 

 

 

Step 1: Create a job class

1 package cn. wy. test; 2 3 import java. text. simpleDateFormat; 4 import java. util. date; 5/** 6 * Custom job class 7 */8 public class TestJob {9 public void run () {// method name can be any 10 System. out. println ("the custom job type is executed:" + new SimpleDateFormat ("yyyy-MM-dd HH: mm: ss "). format (new Date (); 11} 12}

Step 2: configure the applicationContext. xml file

<? Xml version = "1.0" encoding = "UTF-8"?> <Beans xmlns = "http://www.springframework.org/schema/beans" xmlns: xsi = "http://www.w3.org/2001/XMLSchema-instance" xsi: schemaLocation = "http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd"> <! -- Register a custom job class --> <bean id = "testJob" class = "cn. wy. test. TestJob"> </bean> <! -- Configure JobDetail --> <bean id = "jobDeteil" class = "org. springframework. scheduling. quartz. MethodInvokingJobDetailFactoryBean"> <! -- Inject the target object --> <property name = "targetObject" ref = "testJob"/> <! -- Injection target method --> <property name = "targetMethod" value = "run"/> </bean> <! -- Configure Trigger --> <bean id = "myTrigger" class = "org. springframework. scheduling. quartz. CronTriggerFactoryBean"> <! -- Inject task details object --> <property name = "jobDetail" ref = "jobDeteil"/> <! -- Inject a cronExpression expression to specify the start time --> <property name = "cronExpression"> <! -- Trigger After 3 seconds, which is equivalent to executing the run method in the TestJob class every 3 seconds --> <value> 0/3 ****? </Value> </property> </bean> <! -- Configure the scheduling factory --> <bean id = "schedulerFactoryBean" class = "org. springframework. scheduling. quartz. SchedulerFactoryBean"> <! -- Trigger injection --> <property name = "triggers"> <list> <ref bean = "myTrigger"/> <! -- You can configure multiple triggers at the same time --> </list> </property> </bean> </beans>

Step 3: Test

1 package cn.wy.test;2 3 import org.springframework.context.support.ClassPathXmlApplicationContext;4 5 public class Test {6     public static void main(String[] args) {7         new ClassPathXmlApplicationContext("applicationContext.xml");8     }9 }

Execution result: