Java 定时器 Quzrtz 的集成使用

1. 实现思路

1) 导入依赖Jar包（Spring和Quartz）
2) 编写定时任务（TestJob 类）
3) 配置Spring参数，配置定时任务的运行时间
4) 编写测试用例，运行测试、输出测试结果

2. 引入Maven 依赖包

2.1. 引入Spring 和 Quartz

<dependency>    <groupId>org.springframework</groupId>    <artifactId>spring-core</artifactId>    <version>4.1.8.RELEASE</version></dependency><dependency>    <groupId>org.springframework</groupId>    <artifactId>spring-context</artifactId>    <version>4.1.8.RELEASE</version></dependency><dependency>    <groupId>org.springframework</groupId>    <artifactId>spring-beans</artifactId>    <version>4.1.8.RELEASE</version></dependency><dependency>    <groupId>org.springframework</groupId>    <artifactId>spring-context-support</artifactId>    <version>4.1.8.RELEASE</version></dependency><dependency>    <groupId>org.quartz-scheduler</groupId>    <artifactId>quartz</artifactId>    <version>2.2.2</version></dependency>

3. 代码片段

3.1. 作业任务代码

package test.cn.lwz.timer;import org.quartz.JobExecutionContext;import org.quartz.JobExecutionException;import org.springframework.scheduling.quartz.QuartzJobBean;/** * 测试使用的作业任务 * @author LiWenZhang * @date 2016-02-19 16:21:28 */public class TestJob extends QuartzJobBean {    protected void executeInternal(JobExecutionContext ctx) throws JobExecutionException {        System.out.println("TestJob.executeInternal(JobExecutionContext) ...");        // 作业任务内容…    }}

3.2. 测试类（Tests）

package test.cn.lwz;import org.junit.Test;import org.springframework.context.support.ClassPathXmlApplicationContext;/** * 测试用例 * @author LiWenZhang * @date 2016-02-19 17:13:18 */public class Tests {    @Test    public void testQuartz() throws Exception {        try (ClassPathXmlApplicationContext ac = new ClassPathXmlApplicationContext("/spring/test-quartz-context.xml")) {            Thread.sleep(100000);        }    }}

4. 配置文件

4.1. Spring 配置

<?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-2.5.xsd">    <bean name="exampleJob"        class="org.springframework.scheduling.quartz.JobDetailFactoryBean">        <property name="jobClass" value="test.cn.lwz.timer.TestJob" />    </bean>    <bean id="cronTrigger"        class="org.springframework.scheduling.quartz.CronTriggerFactoryBean">        <!-- 作业任务 -->        <property name="jobDetail" ref="exampleJob" />        <!-- 执行触发表达式 -->        <property name="cronExpression" value="0/5 * * * * ?" />    </bean>    <bean class="org.springframework.scheduling.quartz.SchedulerFactoryBean">        <property name="triggers">            <list>                <ref bean="cronTrigger" />            </list>        </property>    </bean></beans>

5. 运行结果输出