Quartz定时任务(四)

1.测试用例

package com.ninemax.application.quartz.loader;

import java.io.File;
import java.lang.reflect.Constructor;
import java.lang.reflect.Field;
import java.lang.reflect.Method;
import java.net.URL;
import java.net.URLClassLoader;

import org.quartz.JobDetail;

import com.ninemax.application.quartz.model.MyJob;
/**
 * 利用JAVA反射调用定时任务
 * 
 * @author Darker
 *
 */
@SuppressWarnings("all")
public class ClassLoaderTest {

	public static void main(String[] args) {
		// 读取指定JAR包
		File jarFile= new File("E:/Worksapces2015/Vip/WebRoot/WEB-INF/lib/quartz-1.8.3.jar");
		// 读取指定的类
		File classFile= new File("E:/Worksapces2015/Vip/src/com/ninemax/application/quartz/model/MyJob.class");
		try {
			// 加载指定JAR包
			URLClassLoader loader=new URLClassLoader(new URL[]{jarFile.toURL()});
			// 加载指定的类
			URLClassLoader classLoader= new URLClassLoader(new URL[]{classFile.toURL()});
			// 加载指定JAR包中的类
			Class SchedulerFactoryClazz=loader.loadClass("org.quartz.impl.StdSchedulerFactory");
			Class CronTriggerClazz=loader.loadClass("org.quartz.CronTrigger");
			Class JobDetailClazz=loader.loadClass("org.quartz.JobDetail");
			Class SchedulerClazz=loader.loadClass("org.quartz.Scheduler");
			Class TriggerClazz=loader.loadClass("org.quartz.Trigger");
			// 加载MyJob中的类
			Class MyJobClazz=classLoader.loadClass("com.ninemax.application.quartz.model.MyJob");
			// 调度工厂SchedulerFactory初始化
			Object schedulerFactory = SchedulerFactoryClazz.newInstance();
			// 调度器Scheduler初始化 11
			//Object scheduler=SchedulerClazz.newInstance();
			// 通过调度工厂获取调度器scheduler
			Object scheduler=schedulerFactory.getClass().getDeclaredMethod("getScheduler", null);
			// 初始化JobDetail实例
			Object jobDetail=JobDetailClazz.newInstance();
			Constructor jobDetailMethod=jobDetail.getClass().getConstructor(String.class,String.class,Class.class);
			// 构造方法jobDetail填写参数
			jobDetailMethod.newInstance("job1","group1",MyJobClazz);
			//jobDetailMethod.invoke();
			// 初始化实例
			Object cronTrigger=CronTriggerClazz.newInstance();
			// cronTrigger构造方法
			Constructor cronTriggerMethod=cronTrigger.getClass().getConstructor(String.class,String.class);
			// 构造方法cronTrigger填写参数
			cronTriggerMethod.newInstance("cronTrigger","triggerGroup");
			// 获取CronExpression方法
			Method cronExpression = cronTrigger.getClass().getDeclaredMethod("setCronExpression", String.class);
			// 设置cronExpression参数
			cronExpression.invoke(cronTrigger, "0 30 18 * * ? *");
			// 获取scheduleJob方法
			Method scheduleJob=scheduler.getClass().getDeclaredMethod("scheduleJob", JobDetailClazz,TriggerClazz);
			// 设置参数
			scheduleJob.invoke(scheduler, jobDetail,cronTrigger);
			// 获取start方法
			Method start=scheduler.getClass().getDeclaredMethod("start", null);
			// 启动调度
			start.invoke(scheduler, null);
		} catch (Exception e) {
			e.printStackTrace();
		}
		
	}

}

2.domain

package com.ninemax.application.quartz.model;

import java.util.Date;

import org.quartz.Job;
import org.quartz.JobExecutionContext;
import org.quartz.JobExecutionException;

public class MyJob implements Job {

	@Override
	public void execute(JobExecutionContext arg0) throws JobExecutionException {
		
		System.out.println("Quartz测试时间:" + new Date());
	}

}

3.quartz-1.8.3.jar下载地址:

http://mvnrepository.com/artifact/org.quartz-scheduler/quartz

来源：oschina

链接：https://my.oschina.net/u/2400848/blog/678447

标签

Java反射

urlclassloader