Spring集成Quartz定时器实现定时任务(非注解方式)

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Job 是什么?

   Job是一个定时任务,它会每隔多久执行你的方法.你并不需要在意它多久执行一次,你只需把你service方法写好,让你的Job调用就行了。

 Job可以理解为工作任务,代码就是实现了org.quartz.Job 或 org.quartz.StatefulJob 接口的java类,当Scheduler决定运行Job时，execute()方法就会被执行。

  Job具体可以干啥昵?

  ①每天定时发送系统邮件

  ②在指定时候发送短信给用户

第一种方式使用 -->Spring集成Quartz定时器实现定时任务

pom.xml需要的jar包

 <properties>
        <springframework.version>4.0.6.RELEASE</springframework.version><!-- Spring的版本 -->
        <quartz.version>2.2.1</quartz.version><!-- Quartz的版本 -->
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <spring.version>4.1.7.RELEASE</spring.version>
    </properties>

    

    <dependencies>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-web</artifactId>
            <version>${springframework.version}</version>
        </dependency>


        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-core</artifactId>
            <version>${springframework.version}</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-context-support</artifactId>
            <version>${springframework.version}</version>
        </dependency>
        <!-- Spring事务的依赖 -->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-tx</artifactId>
            <version>${springframework.version}</version>
        </dependency>

        <!-- 定时任务框架Quartz的依赖-->
        <dependency>
            <groupId>org.quartz-scheduler</groupId>
            <artifactId>quartz</artifactId>
            <version>${quartz.version}</version>
        </dependency>


        <!-- 添加Spring支持 -->
        <!-- 核心包 -->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-core</artifactId>
            <version>${spring.version}</version>
        </dependency>

        <!-- pring IOC的基础实现，包含访问配置文件、创建和管理bean等 -->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-beans</artifactId>
            <version>${spring.version}</version>
        </dependency>

        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-context</artifactId>
            <version>${spring.version}</version>
        </dependency>

        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-context-support</artifactId>
            <version>${spring.version}</version>
        </dependency>

        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-web</artifactId>
            <version>${spring.version}</version>
        </dependency>

        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-webmvc</artifactId>
            <version>${spring.version}</version>
        </dependency>

        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-tx</artifactId>
            <version>${spring.version}</version>
        </dependency>

        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-aop</artifactId>
            <version>${spring.version}</version>
        </dependency>


        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-aspects</artifactId>
            <version>${spring.version}</version>
        </dependency>

        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-jdbc</artifactId>
            <version>${spring.version}</version>
        </dependency>


        </dependencies>

web.xml文件的配置

    <context-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>
            classpath*:applicationContext-*.xml
        </param-value>
    </context-param>

    <listener>
        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
    </listener>

resources文件夹要添加下面需要添加2个文件:

applicationContext-jobs.xml

  <util:list id="triggers" list-class="java.util.ArrayList">
        <ref bean="messageJobTrigger"></ref>
        </util:list>

        <!--
         p:jobClass : 执行job的那个类名包括路径
         p:cronExpression : job多久执行一次的配置
         -->

        <bean id="messageJob"
        class="org.springframework.scheduling.quartz.JobDetailFactoryBean"
        p:jobClass="com.hp.quartz.MessageDeferJob"
        p:name="MessageJob"
        />


        <!-- Message Defer Job -->
        <bean id="messageJobTrigger"
        class="org.springframework.scheduling.quartz.CronTriggerFactoryBean"
        p:jobDetail-ref="messageJob"
        p:cronExpression="0/5 * *  * * ? "
        p:name="MessageJobTrigger"
        p:priority="5"
        />

applicationContext-quartz.xml

 <!--
     autoStartup : 是否自动启动 默认为false
     startupDelay : 延迟秒数
     jobFactory-ref : 将他配置到spring容器中
     triggers-ref : 关联触发器的id
     -->
    <bean id="scheduler"
          class="org.springframework.scheduling.quartz.SchedulerFactoryBean"
          p:autoStartup="true"
          p:startupDelay="10"
          p:jobFactory-ref="jobFactory"
          p:triggers-ref="triggers"
    />

    <bean id="jobFactory"
          class="org.springframework.scheduling.quartz.SpringBeanJobFactory"
    />

创建测试的类 MessageDeferJob.java

接下来测试一下效果