未支付订单30分钟后，自动取消

生成订单时发起延时30分钟的任务

  /**
     * 取消订单的任务
     * @Title: startCancelOrderTask
     * @Description: 取消订单的任务
     * @param orderInfo
     * @throws
     */
    private void startCancelOrderTask(OrderInfo orderInfo){
        if(orderInfo.getPayStatus().equals(PayStatusEnum.NOPAY.ordinal())){
  //SysParam.getOrderDelay() 时间30
            OrderSchedule.getInstance().startTask( new OrderFailureJob(orderInfo.getOrderId()), SysParam.getOrderDelay(), TimeUnit.MINUTES);
        }
    }

OrderSchedule

package com.ghgcn.cigarbox.task.job;

import java.util.concurrent.Executors;
import java.util.concurrent.ScheduledExecutorService;
import java.util.concurrent.TimeUnit;
/**
 * 
 * @ClassName: OrderSchedule
 * @Description: 订单取消的预定计划
 * @author 
 * @date 2018年4月10日 下午5:13:34
 *
 */
public class OrderSchedule {
    private static ScheduledExecutorService Manager;
    private static OrderSchedule orderSchedule;

    static{
        Manager = Executors.newScheduledThreadPool(Runtime.getRuntime().availableProcessors());
    }

    private OrderSchedule(){
    }

    public synchronized static OrderSchedule getInstance(){
        if(orderSchedule == null){
            orderSchedule = new OrderSchedule();
        }
        return orderSchedule;
    }

    /**
     * 生成订单时调用，一段时间后订单取消
     */
    public void startTask(Runnable task,long delay ,TimeUnit time ){
        Manager.schedule(task,delay,time);
    }
}

OrderFailureJob

package com.ghgcn.cigarbox.task.job;

import java.util.concurrent.locks.Lock;
import java.util.concurrent.locks.ReentrantLock;

import org.jflame.toolkit.util.DateHelper;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import com.ghgcn.cigarbox.common.enums.OrderEnums.OrderStatusEnum;
import com.ghgcn.cigarbox.common.enums.OrderEnums.PayStatusEnum;
import com.ghgcn.cigarbox.entity.OrderInfo;
import com.ghgcn.cigarbox.service.IOrderInfoService;
import com.ghgcn.cigarbox.support.SpringContextHolder;
/**
 * 
 * @ClassName: OrderFailureJob
 * @Description: 定时取消订单
 * @author 
 * @date 2018年4月10日 下午5:13:15
 *
 */
public class OrderFailureJob implements Runnable {

    private Logger logger = LoggerFactory.getLogger(OrderFailureJob.class);
    private Integer orderId;
    private static Lock lock = new ReentrantLock();
    /**
    获取Servcie
    */
    private IOrderInfoService orderInfoService =  SpringContextHolder.getBean(IOrderInfoService.class);

    public OrderFailureJob(Integer orderId) {
        super();
        this.orderId = orderId;
logger.debug("orderId  {} ",orderId);
logger.debug("orderInfoService  {} ",orderInfoService.toString());
    }

    @Override
    public void run() {
        
        /**
         * 查询订单
         */
        OrderInfo info = orderInfoService.selectOrderInfoByOrderId(orderId);
        logger.info(" 订单信息  {} ",info.toString());
        if (info.getOrderStatus().equals(OrderStatusEnum.NORMAL.ordinal())
                && info.getPayStatus().equals(PayStatusEnum.NOPAY.ordinal())) {

            lock.lock();
            
            try{
                /**
                更改订单状态
                */
                info.setOrderStatus(OrderStatusEnum.CANCEL.ordinal());
                info.setUpdateDate(DateHelper.nowTimestamp());
                orderInfoService.updateOrderInfo(info);
            }finally{
                lock.unlock();
            }
        }
    }

}

SpringContextHolder

package com.ghgcn.cigarbox.support;

import java.util.Locale;

import org.springframework.beans.BeansException;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextAware;
import org.springframework.context.ApplicationEvent;

/**
 * spring ApplicationContext holder
 *  
 * 
 */
public final class SpringContextHolder implements ApplicationContextAware {

    private static ApplicationContext springContext;

    @Override
    public void setApplicationContext(ApplicationContext applicationContext) throws BeansException {
        SpringContextHolder.springContext = applicationContext;
    }

    /**
     * 返回spring上下文环境对象
     * 
     * @return ApplicationContext
     */
    public static ApplicationContext getSpringContext() {
        return springContext;
    }

    
    /**
     * 按名称获取spring bean
     * 
     * @param name
     * @return
     */
    public static Object getBean(String name) {
        return springContext.getBean(name);
    }

    /**
     * 按类型获取spring bean
     * 
     * @param requiredType
     * @return
     */
    public static <T> T getBean(Class<T> requiredType) {
        return springContext.getBean(requiredType);
    }

 

    /**
     * 发布事件到spring
     * @param event
     */
    public static void pushEvent(ApplicationEvent event) {
        springContext.publishEvent(event);
    }
    
}

• 在xml中声明或者注解

<bean id="springContext" class="com.ghgcn.cigarbox.support.SpringContextHolder"></bean>

@Component
public final class SpringContextHolder implements ApplicationContextAware {

另外

如果有消息队列可以发送延时消息，来处理