Quartz 任务调度 0 0 17 * * ?

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工程目录结构

 

 

 

spring + quartz JAR包

 

 

 

ApplicationContext.xml（beans.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"

    xsi:schemaLocation = "http://www.springframework.org/schema/beans

           http://www.springframework.org/schema/beans/spring-beans-2.5.xsd

           http://www.springframework.org/schema/context

           http://www.springframework.org/schema/context/spring-context-2.5.xsd

           http://www.springframework.org/schema/aop

           http://www.springframework.org/schema/aop/spring-aop-2.5.xsd" >



    < context:annotation-config />

    < context:component-scan base-package = "com" />

    < aop:aspectj-autoproxy />



    <!-- 要调用的工作类 -->

    < bean id = "quartzJob" class = "com.kay.quartz.QuartzJob" ></ bean >

<!-- 定义调用对象和调用对象的方法 -->

    < bean id = "jobtask" class = "org.springframework.scheduling.quartz.MethodInvokingJobDetailFactoryBean" >

        <!-- 调用的类 -->

        < property name = "targetObject" >

            < ref bean = "quartzJob" />

        </ property >

        <!-- 调用类中的方法 -->

        < property name = "targetMethod" >

            < value > work </ value >

        </ property >

    </ bean >



    <!-- 定义触发时间 -->

    < bean id = "doTime" class = "org.springframework.scheduling.quartz.CronTriggerBean" >

        < property name = "jobDetail" >

            < ref bean = "jobtask" />

        </ property >

        <!-- cron 表达式 -->

        < property name = "cronExpression" >

            < value > 0 0 17 * * ? </ value >

        </ property >

    </ bean >

<!-- 总管理类 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 = "doTime" />

            </ list >

        </ property >

    </ bean >



</ beans >

 

任务调度类

package com.kay.quartz;



import java.io.File;

import java.io.FileFilter;

import java.io.FileInputStream;

import java.io.FileOutputStream;

import java.util.Date;



/**

  * quartz 任务调度 , 每天下午 17:00, 自动将 e:/ 下的 jpg 图片 , 拷贝到 e:/aa/ 下

  *

  * 秒    分    时    月中天    月     周中天    [ 年 ]

  *

  * 0     0     17    *        *      ?

  *

  * @author leiwei 2011 - 11 - 29

  *

  *

  */

public class QuartzJob {



    public void work() throws Exception {

        int b = 0;



        // Make sure the directory exists

        File dir = new File( "e:/" );



        if (!dir.exists()){

            throw new Exception( "Directory not configured" );

        }



        // Use FileFilter to get only jpg files

        FileFilter filter = new FileExtensionFileFilter( ".jpg" );

        File[] files = dir.listFiles(filter);



        // Return since there were no files

        if (files == null || files. length <= 0) {

            System. out .println( "No XML files found in " + dir);

            return ;

        }



        // The number of jpg files

        int size = files. length ;



        // Iterate through the files found

        for ( int i = 0; i < size; i++) {

            File file = files[i];



            // Log something interesting about each file.

            File aFile = file.getAbsoluteFile();



            FileInputStream ino = new FileInputStream(aFile);

            FileOutputStream fos = new FileOutputStream( "e:/aa/" +file.getName());



            while ((b=ino.read())>-1){

                fos.write(b);

            }

        }



    }

}

// 内部类，过滤文件

class FileExtensionFileFilter implementsFileFilter{



    private   String extension ;



    public FileExtensionFileFilter(String extension) {

        this . extension = extension;

    }



    public boolean accept(File file) {

        String lCaseFilename = file.getName().toLowerCase();

        return   (file.isFile() && (lCaseFilename.indexOf( extension ) >  0 )) ? true:false ;

    }



}

 

 

测试

 

package com.test;



import org.springframework.context.ApplicationContext;

import org.springframework.context.support.ClassPathXmlApplicationContext;



public class Test {



    public static void main(String[] args) {

        System. out .println( " 调度开始 ..." );

        ApplicationContext apc = new ClassPathXmlApplicationContext( "beans.xml" );

        System. out .println( " 调度结束 ..." );

    }

}

 

参考:  http://it.oyksoft.com/post/698/

 

续：上面只是quartz的独立应用，如何将它整合到实际的项目应用中了。
    在原有的ssh基础上，加入quartz.xml(在这里面配置所需的任务调度)，
    再在web.xml文件contextConfigLocation下param-value中追加classpath*:quartz.xml
    结构图、文件如下

 

 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"
    xsi:schemaLocation = "http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.0.xsd" >

    <!-- 对 testService 中的 testQuartz 方法进行定时任务调度 -->
    < bean id = "methodInvokingJobDetailForSms" class = "org.springframework.scheduling.quartz.MethodInvokingJobDetailFactoryBean" >
        < property name = "targetObject" >
            < ref bean = "testService" />
        </ property >
        < property name = "targetMethod" >
            < value > testQuartz </ value >
        </ property >
    </ bean >
    < bean id = "cronTriggerForSms" class = "org.springframework.scheduling.quartz.CronTriggerBean" >
       < property name = "jobDetail" >
            < ref bean = "methodInvokingJobDetailForSms" />
       </ property >
       < property name = "cronExpression" >
            < value > 0 * 12 * * ? </ value >
       </ property >
    </ bean >
    < bean class = "org.springframework.scheduling.quartz.SchedulerFactoryBean" >
       < property name = "triggers" >
            < list >< ref local = "cronTriggerForSms" /></ list >
       </ property >
    </ bean >
</ beans >

 

web.xml

< context-param >
    < param-name > contextConfigLocation </ param-name >
    <!-- <param-value>/WEB-INF/applicationContext-*.xml,classpath*:applicationContext-*.xml</param-value>  -->
    < param-value >
        classpath*:beans.xml
        classpath*:quartz.xml
    </ param-value >
</ context-param >