spring定时器的动态设置

spring还是以整合已有的框架为主，它对时间的设置比较灵活。
在spring中，可以继承QuartzJobBean，也可以不做任何继承，当然写法也不一样，这里用的非继承的写法。
定时器的注册过程：1.创建bean，2.声明bean为一个定时器，3.设置任务时间，4.在调度中注册定时器

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<?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: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-2.0.xsd        http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-2.0.xsd        http://www.springframework.org/schema/tx http://www.springframework.org/schema/aop        http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-2.0.xsd">
<bean id="mySessionFactory" class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">
    <property name="configLocation" value="classpath:hibernate.cfg.xml"/>
</bean>
<bean id="myTxManager" class="org.springframework.orm.hibernate3.HibernateTransactionManager">
    <property name="sessionFactory" ref="mySessionFactory"/>
</bean>

    <tx:advice id="txAdvice" transaction-manager="myTxManager">
    <tx:attributes>
      <tx:method name="find*" propagation="REQUIRED" read-only="true"/>
      <tx:method name="get*" propagation="REQUIRED" read-only="true"/>
      <tx:method name="save*" propagation="REQUIRED" read-only="false" rollback-for="com.HXException"/>
      <tx:method name="audit*" propagation="REQUIRED" read-only="false" rollback-for="com.HXException"/>
      <tx:method name="do*" propagation="REQUIRED" read-only="false" rollback-for="com.HXException"/>
      <tx:method name="add*" propagation="REQUIRED" read-only="false" rollback-for="com.HXException"/>
      <tx:method name="modify*" propagation="REQUIRED" read-only="false" rollback-for="com.HXSException"/>
      <tx:method name="delete*" propagation="REQUIRED" read-only="false" rollback-for="com.HXException"/>
      <tx:method name="create*" propagation="REQUIRED" read-only="false" rollback-for="com.HXException"/>
      <tx:method name="update*" propagation="REQUIRED" read-only="false" rollback-for="com.HXException"/>
      <tx:method name="*" propagation="SUPPORTS" read-only="true"/>
    </tx:attributes>
</tx:advice>

<aop:config>
    <aop:pointcut id="systemServiceMethods" expression="execution(* com.*.*(..))"/>
    <aop:advisor advice-ref="txAdvice" pointcut-ref="systemServiceMethods"/>
</aop:config>

   <bean id="testJob" class="org.springframework.scheduling.quartz.JobDetailBean">
    <property name="jobClass" value="web.testJob"/>
    <property name="jobDataAsMap">
      <map>
        <entry key="ftpConfigService">
            <ref bean="ftpConfigService"/>
        </entry>
      </map>
    </property>
</bean>

<bean id="testJob1" class="org.springframework.scheduling.quartz.JobDetailBean">
    <property name="jobClass" value="web.test1Job"/>
    <property name="jobDataAsMap">
      <map>
        <entry key="ftpConfigService">
            <ref bean="ftpConfigService"/>
        </entry>
      </map>
    </property>

</bean>

<bean id="testTrigger" class="org.springframework.scheduling.quartz.CronTriggerBean">
    <property name="jobDetail" ref="testJob"/>
    <property name="cronExpression" value="0 19 8,9,19,20 * * ?"/>
</bean>
<bean id="testTrigger1" class="org.springframework.scheduling.quartz.CronTriggerBean">
    <property name="jobDetail" ref="testJob"/>
    <property name="cronExpression" value="0 18 8,9,19,20 * * ?"/>
</bean>
<bean id="testTrigger2" class="org.springframework.scheduling.quartz.CronTriggerBean">
    <property name="jobDetail" ref="testJob1"/>
    <property name="cronExpression" value="0 17 8,9,19,20 * * ?"/>
</bean>


   <bean id="facbean" class="org.springframework.scheduling.quartz.SchedulerFactoryBean">
    <property name="triggers">
            <list>
                <ref bean="testTrigger"/>
                <ref bean="testTrigger1"/>
                <ref bean="testTrigger2"/>
            </list>
        </property>
</bean>

<bean id="ftpConfigDAO" scope="prototype" class="com.FtpConfigHibernateDAO">
<property name="sessionFactory">
    <ref local="mySessionFactory" />
</property>
</bean>
<bean id="ftpConfigService" scope="prototype" class="com.FtpConfigServiceSpringImp">
<property name="ftpConfigDAO">
    <ref local="ftpConfigDAO"/>
</property>
</bean>
<beans>
================================================================
public class testJob extends QuartzJobBean{
    private IFtpConfigService ftpConfigService;


    public IFtpConfigService getFtpConfigService() {
        return ftpConfigService;
    }

    public void setFtpConfigService(IFtpConfigService ftpConfigService) {
        this.ftpConfigService = ftpConfigService;
    }

    @Override
    protected void executeInternal(JobExecutionContext arg0)
            throws JobExecutionException {
        System.out.println("执行================");
        try{
            FtpConfig ftp = this.getFtpConfigService().findFtpConfigById("2");
            System.out.println(ftp.getFtpUrl());
        }catch(Exception e){}

    }
===========================================================
public class testservlet extends HttpServlet{

    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        response.setContentType("text/html;charset=utf-8");
        String time = request.getParameter("time");
        WebApplicationContext ctx = WebApplicationContextUtils.getWebApplicationContext(request.getSession().getServletContext());
        try{

            SchedulerFactoryBean jobFact = (SchedulerFactoryBean)ctx.getBean("&facbean");

            CronTriggerBean bean = (CronTriggerBean)ctx.getBean("testTrigger");
            String newVal = "0 16 8,9,19,20 * * ?";
            bean.setCronExpression(newVal);

            jobFact.destroy();
            jobFact.afterPropertiesSet();

        }catch(Exception e){
            e.printStackTrace();
        }

        response.sendRedirect("succ.jsp");
    }

    @Override
    protected void doPost(HttpServletRequest req, HttpServletResponse resp)
            throws ServletException, IOException {
        doGet(req,resp);
    }
}

spring定时器的动态设置

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