Spring配置Quartz任务调度、及 ThreadPool 线程池

ONE、除了引入 Spring 相关的 jar 包，还要引入 Quartz 的 jar 包

        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-context-support</artifactId>
            <version>${springversion}</version>
        </dependency>
        <dependency>
            <groupId>org.quartz-scheduler</groupId>
            <artifactId>quartz</artifactId>
            <version>2.2.2</version>
        </dependency>
        <dependency>
            <groupId>org.quartz-scheduler</groupId>
            <artifactId>quartz-jobs</artifactId>
            <version>2.2.2</version>
        </dependency>

　　这里用的是 MAVEN，普通工程自行下载 jar 包即可。

TWO、调度任务类 QuartzJob.java

package test;

public class QuartzJob {

    public void work1() {
        System.out.println("Quartz定时器！！！work1 doing…");
    }

    public void work2() {
        System.out.println("Quartz定时器！！！work2 doing…");
    }

}

　　里面定义两个方法，quartz配置文件里也会用两种方式配置 类 和 方法。

THREE、Spring 配置 spring-quartz.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:context="http://www.springframework.org/schema/context"
    xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx"
    xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
            http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.0.xsd
            http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.0.xsd
            http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd"
    default-autowire="byName" default-lazy-init="true">
    
    <!-- 要调用的工作类 -->
    <bean id="testJob" class="test.QuartzJob"></bean>

    <!-- 配置任务并发执行线程池 -->
    <bean id="executor"
        class="org.springframework.scheduling.concurrent.ThreadPoolTaskExecutor">
        <!-- 核心线程数 线程池维护线程的最少数量 -->
        <property name="corePoolSize" value="100" />  
        <!-- 线程池维护线程所允许的空闲时间 -->
        <property name="keepAliveSeconds" value="200" />  
        <!-- 线程池维护线程的最大数量 -->
        <property name="maxPoolSize" value="100" />  
        <!-- 线程池所使用的缓冲队列 -->
        <property name="queueCapacity" value="2000" /> 
        <!-- 线程池对拒绝任务(无线程可用)的处理策略 ThreadPoolExecutor.CallerRunsPolicy策略 ,调用者的线程会执行该任务,如果执行器已关闭,则丢弃.  -->
        <property name="rejectedExecutionHandler">
            <bean class="java.util.concurrent.ThreadPoolExecutor$CallerRunsPolicy" />
        </property> 
    </bean>
    

    <!-- 定义调用对象和调用对象的方法 -->
    <bean id="testTask"
        class="org.springframework.scheduling.quartz.MethodInvokingJobDetailFactoryBean">
        <!-- 调用的类 -->
        <property name="targetObject">
            <ref bean="testJob" />
        </property>
        <!-- 调用类中的方法 -->
        <property name="targetMethod">
            <value>work1</value>
        </property>
    </bean>
    <bean id="testTask2"
        class="org.springframework.scheduling.quartz.MethodInvokingJobDetailFactoryBean">
        <!-- 调用的类 -->
        <property name="targetObject" ref="testJob" />
        <!-- 调用类中的方法 -->
        <property name="targetMethod" value="work2" />
    </bean>

    <!-- 调度触发器 -->
    <bean id="jibDoTime"
        class="org.springframework.scheduling.quartz.CronTriggerFactoryBean">
        <property name="jobDetail">
            <ref bean="testTask" />
        </property>
        <!-- cron表达式 1秒执行一次 -->
        <property name="cronExpression">
            <value>0/1 * * * * ?</value>
        </property>
    </bean>
    <bean id="jibDoTime2"
        class="org.springframework.scheduling.quartz.CronTriggerFactoryBean">
        <property name="jobDetail" ref="testTask2" />
        <property name="cronExpression" value="0/2 * * * * ?" />
    </bean>

    <!-- 调度工厂 如果将lazy-init='false'那么容器启动就会执行调度程序 -->
    <bean id="startQuertz" lazy-init="false" autowire="no"
        class="org.springframework.scheduling.quartz.SchedulerFactoryBean">
        <property name="triggers">
            <list>
                <ref bean="jibDoTime" />
                <ref bean="jibDoTime2" />
            </list>
        </property>
        <!-- 设置 QuartzScheduler 延时启动，应用启动完后 QuartzScheduler 再启动 -->
        <property name="startupDelay" value="5" />
        <property name="taskExecutor" ref="executor" />
    </bean>
</beans>

FOUR、web.xml 里加载 quartz

       <context-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>
            classpath:spring-quartz.xml
        </param-value>
    </context-param>

下面虽然不太重要，但很能说服人~

Quartz定时器！！！work1 doing…
2017-09-14 15:36:32,009 DEBUG [org.quartz.core.QuartzSchedulerThread] - batch acquisition of 1 triggers
2017-09-14 15:36:32,009 DEBUG [org.quartz.core.JobRunShell] - Calling execute on job DEFAULT.testTask
Quartz定时器！！！work1 doing…
2017-09-14 15:36:32,012 DEBUG [org.quartz.core.QuartzSchedulerThread] - batch acquisition of 1 triggers
2017-09-14 15:36:32,012 DEBUG [org.quartz.core.JobRunShell] - Calling execute on job DEFAULT.testTask2
Quartz定时器！！！work2 doing…
2017-09-14 15:36:33,003 DEBUG [org.quartz.core.QuartzSchedulerThread] - batch acquisition of 1 triggers
2017-09-14 15:36:33,003 DEBUG [org.quartz.core.JobRunShell] - Calling execute on job DEFAULT.testTask
Quartz定时器！！！work1 doing…
2017-09-14 15:36:34,007 DEBUG [org.quartz.core.QuartzSchedulerThread] - batch acquisition of 1 triggers
2017-09-14 15:36:34,007 DEBUG [org.quartz.core.JobRunShell] - Calling execute on job DEFAULT.testTask
Quartz定时器！！！work1 doing…
2017-09-14 15:36:34,009 DEBUG [org.quartz.core.QuartzSchedulerThread] - batch acquisition of 1 triggers
2017-09-14 15:36:34,009 DEBUG [org.quartz.core.JobRunShell] - Calling execute on job DEFAULT.testTask2
Quartz定时器！！！work2 doing…
2017-09-14 15:36:35,004 DEBUG [org.quartz.core.JobRunShell] - Calling execute on job DEFAULT.testTask
......

本文到此结束啦~