Spring 项目实现简单的多线程定时同步任务

Spring 项目实现简单的多线程定时同步任务

//1 在contextListener 直接定义调用3个线程
public class ContextListener implements ServletContextListener{

@Override
public void contextInitialized(ServleteContextEvent sce ){
	Thread t1 = new Thread(new Runnable(){
		@Override
		public void run(){
			try{
				while(true){
					com.test.ApplySynManager.getInstance().synMain();
					Thread.sleep(60 * 1000);
				}
			}catch(){
				e.printStackTrace();
			}
		}
	});

	Thread t2 = new Thread(new Runnable(){
		...
	});

	Thread t3 = new Thread(new Runnable(){
		@Override
		public void run(){
			...
	});

	t1.start();
	t2.start();
	t3.start();
}

//2、单例模式管理线程
public class ApplySynManager{
	private ApplySynManager(){}
	private ApplySynManager examApp = null;
	//单例模式，保持这个对象  
    public static ApplySynManager getInstance(){  
        if (examApp == null) {  
            //当flag == true时，为了解决，timer.cancel()后，重新创建一个timer  
        	examApp = new ExamApplySynManager();    
        }
        return examApp;
    }
	
	public void synMain(){
		if(DefCommon.syncExamThread == DefCommon.THREAD_RUNING){
			FunCommon.printLog("线程运行中synExamMain");
			return FunCommon.getReturnJson(DefCommon.E_Fail,"syncExamThread,线程运行中");
		}
		DefCommon.syncExamThread = DefCommon.THREAD_RUNING;
		
		//业务处理...
		
		//线程标记为结束
		DefCommon.syncExamThread = DefCommon.THREAD_STOP;
		return;
	}
	
	public void synReport(){
		...
		//对应t2
	}
	
	public void synDcm(){
		...
		//对应t3
	}

}