java 运行多线程轮询时，外部停止轮询

1，先建一个Map/**
* 创建一个Map用于存放线程id对象集合，主要是用于到达岗亭之后扫码付费，如果人工收费就需要关闭线程，key是停车记录Id，
*/
public static Map<String, String> MAPTHREAD = new HashMap<String,String>();2.建一个线程类继承Runnable/**
* 轮询查询网上支付结果
* @author Administrator
*
*/
@Component
public class PollingSearch implements Runnable{
private String flag;

private ParkingRecord parkingRecord;

// @Autowired
// private OnlinePaymentService onlinePaymentService;

//@Autowired
//private CameraLogic cameraLogic;

@Override
public void run() {
try {
CameraLogic cameraLogic = (CameraLogic) SpringUtil.getObject("cameraLogic");
OnlinePaymentService onlinePaymentService = (OnlinePaymentService) SpringUtil.getObject("onlinePaymentServiceImpl");
while(CommonUtil.MAPTHREAD.get(flag).equals("true")) {

Thread.sleep(5000);
}
} catch (Exception e) {
e.printStackTrace();
}
}

public void setFlag(String flag) {
this.flag = flag;
}

public ParkingRecord getParkingRecord() {
return parkingRecord;
}

public void setParkingRecord(ParkingRecord parkingRecord) {
this.parkingRecord = parkingRecord;
}

public String getFlag() {
return flag;
}spring容器中无法自动注入，所以用这两句代码获取，springUtil可参考我的另一篇文章 spring ioc容器管理 CameraLogic cameraLogic = (CameraLogic) SpringUtil.getObject("cameraLogic");
OnlinePaymentService onlinePaymentService = (OnlinePaymentService) SpringUtil.getObject("onlinePaymentServiceImpl");重要的代码在这while(CommonUtil.MAPTHREAD.get(flag).equals("true")) {上面代码在根据map中判断了是否执行轮询，当为true时才执行
下面开启线程 final String parkRecordId = oldRecord.getId();
final ParkingRecord parkingRecord = oldRecord;
//将账单id放进map中，为了等待支付完成时可以根据停车记录id找到该账单后删除
CommonUtil.PAYMENTRECORDMAP.put(parkRecordId, paymentRecord.getId());
CommonUtil.MAPTHREAD.put(parkRecordId, "true");
PollingSearch pollingSearch = new PollingSearch();
pollingSearch.setParkingRecord(parkingRecord);
pollingSearch.setFlag(parkRecordId);
Thread thread = new Thread(pollingSearch);
thread.start();在需要关闭线程的时候 final String parkingRecordId = parkingRecord.getId();
CommonUtil.MAPTHREAD.put(parkingRecordId,"false");
CommonUtil.MAPTHREAD.remove(parkingRecordId);这样子就可以给各个线程手动关闭了
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