Spring中使用quartz执行定时任务的两种方式

一, 继承spring封装Quartz类(org.springframework.scheduling.quartz.QuartzJobBean)方式，其实QuartzJobBean类实现了quartz的Job接口
(直接使用quartz时，每一个自定义的定时任务job类都要实现job接口)
spring-mvc-quartz2.xml:
<bean id="job2Trigger" class="org.springframework.scheduling.quartz.CronTriggerBean">  
    <property name="jobDetail">  
        <bean class="org.springframework.scheduling.quartz.JobDetailBean">  
            <property name="jobClass" value="com.yueguang.schedule.Job2"/>  
            <property name="jobDataAsMap">    <!-- 只能这么注入属性,不能在任务类里注入 -->  
                <map><entry key="job2Service" value-ref="job2Service"/></map>  
            </property> 
        </bean>  
    </property>  
    <!-- 指定Cron表达式 -->  
    <property name="cronExpression" value="0/1 * * * * ?"/>  
</bean>

<bean id="schedulerFactory" lazy-init="false" autowire="no" class="org.springframework.scheduling.quartz.SchedulerFactoryBean">
    <property name="triggers">
        <list>
        <ref bean="job2Trigger" />
    </list>
    </property>
</bean>    
<bean id="job2Service" class="....">
</bean>

package com.yueguang.schedule;
import org.quartz.JobExecutionContext;
import org.quartz.JobExecutionException;
import org.springframework.scheduling.quartz.QuartzJobBean;

public class Job2 extends QuartzJobBean {
    private Job2Service job2Service;


    @Override
    protected void executeInternal(JobExecutionContext jobexecutioncontext)
            throws JobExecutionException {
        job2Service.test();
    }


    public void setJob2Service(Job2Service job2Service) {
        this.job2Service = job2Service;
    }
}

二,利用spring MethodInvokingJobDetailFactoryBean类,不需要继承.
spring-mvc-quartz1.xml
<!-- job bean 配置 -->
    <bean id="job1"
        class="org.springframework.scheduling.quartz.MethodInvokingJobDetailFactoryBean">
        <property name="targetObject" ref="job1" />
        <property name="targetMethod" value="execute" />
        <property name="concurrent" value="true" />    <!-- 设置为true则多个job并发执行 -->
    </bean>
    <!-- trigger -->
    <bean id="job1Trigger" class="org.springframework.scheduling.quartz.CronTriggerBean">
        <property name="jobDetail" ref="job1" />
        <property name="cronExpression" value="0/1 * * * * ?" />
    </bean>
    
    <!-- 定时任务调度器 -->
    <bean id="schedulerFactory" lazy-init="false" autowire="no" class="org.springframework.scheduling.quartz.SchedulerFactoryBean">
        <property name="triggers">
            <list>
                <ref bean="job1Trigger" />
                <!-- <ref bean="job2Trigger" /> -->
            </list>
        </property>
    </bean>

public class Job1 {
    private Job1Service job1Service;

   public void execute() {

system.out.println("---test----");

   }
}

注:

1、在第一种方式中,不能在jobbean中直接以注解的方式注入spring bean组件,必须在jobDetail的属性jobDataAsMap中配置要注入的bean组件,同时需要在该jobbean中写好对应的setter.

2、在实际开发中，第二种方式很方便，特别是在使用注解的情况下。