spring-quartz定时任务整合

超、凢脫俗 2022-07-15 13:26 313阅读 0赞

1.增加quartz的jar包

quartz-2.2.1.jar

quartz-jobs-2.2.1.jar

2.web.xml中增加使用quartz的配置文件

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

3.spring-task.XML文件

<?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:mvc="http://www.springframework.org/schema/mvc"
    	xsi:schemaLocation="http://www.springframework.org/schema/beans
    http://www.springframework.org/schema/beans/spring-beans.xsd">
    
        <bean name="startQuertz" lazy-init="false" autowire="no"
            class="org.springframework.scheduling.quartz.SchedulerFactoryBean">
            <property name="triggers">
                <list>
                    <ref bean="cleanUpThumbnailTrigger" />
                    
                </list>
            </property>
        </bean>
        
        <bean id="cleanUpThumbnailTrigger"
            class="org.springframework.scheduling.quartz.CronTriggerFactoryBean">
            <property name="jobDetail">
                <ref bean="cleanUpThumbnailDetail" />
            </property>
            <property name="cronExpression">
                
                <value>0 0 0 */7 * ?</value>
            </property>
        </bean>
        
        
    
        
        <bean id="cleanUpThumbnailDetail"
            class="org.springframework.scheduling.quartz.MethodInvokingJobDetailFactoryBean">
            <property name="targetObject">
                <ref bean="cleanUpThumbnailJob" />
            </property>
            <property name="targetMethod">
                <value>execute</value>
            </property>
        </bean>
        
    
        
        <bean id="cleanUpThumbnailJob" class="com.hytera.eems.job.cleanUpThumbnailJob" />
    </beans>

4.class文件

package com.hytera.eems.job;
    
    import java.io.File;
    import java.text.SimpleDateFormat;
    import java.util.Date;
    
    import javax.servlet.ServletContext;
    
    import org.slf4j.Logger;
    import org.slf4j.LoggerFactory;
    import org.springframework.web.context.ContextLoader;
    import org.springframework.web.context.WebApplicationContext;
    
    import com.hytera.eems.util.ice.log.IceLogService;
    /**
     * 清理缩略图作业
     * @author y15212
     *
     */
    public class cleanUpThumbnailJob{
    	/**
    	 * 执行缩略图文件删除任务
    	 */
    	private static final Logger LOGGER = LoggerFactory.getLogger(cleanUpThumbnailJob.class);
    
    	public void execute() {  
            WebApplicationContext webApplicationContext = ContextLoader.getCurrentWebApplicationContext();  
            ServletContext servletContext = webApplicationContext.getServletContext();
            String aString = servletContext.getRealPath("").replace("\\", "/")+"images";
            delImageCache(aString);
    		LOGGER.debug("七天了，要开始执行删除图片缓存的任务了");
    		IceLogService.writeIceLog("Seven days, to start the task of deleting the image cache", 0);
        }
    	
    	public void  delImageCache(String path){
    	        File f = new File(path);
    	        if (!f.exists()) {
    	            System.out.println(path + " not exists");
    	            return;
    	        }
    
    	        File fa[] = f.listFiles();
    	        for (int i = 0; i < fa.length; i++) {
    	            File fs = fa[i];
    	            if (fs.isDirectory()) {
    	                String filedirname = fs.getName();
    	                SimpleDateFormat formart = new SimpleDateFormat("yyyy-MM-dd");
    	                String nowdate = formart.format(new Date());
    	                if(!nowdate.equals(filedirname)){//不是今天创建的文件，则全部删除
    	                    File[] children = fs.listFiles();
                            //递归删除目录中的子目录下
                            for (int j=0; j<children.length; j++) {
                                 boolean success =children[j].delete();
                                 if (!success) {
                                     return ;
                                 }
                             }
                             // 目录此时为空，可以删除
                            fs.delete();
    	                }
    	            } 
    	        }
    	    }
    }