Java Spring3通过在服务器上同时运行多个实例的注释进行任务调度
我正在使用spring调度程序来调度作业。 它在本地运行良好,但在服务器上,它为同一实例运行了多次 从服务器登录Java Spring3通过在服务器上同时运行多个实例的注释进行任务调度,java,multithreading,spring,spring-mvc,spring-scheduled,Java,Multithreading,Spring,Spring Mvc,Spring Scheduled,我正在使用spring调度程序来调度作业。 它在本地运行良好,但在服务器上,它为同一实例运行了多次 从服务器登录 20 Mar 2014 09:00:00 [pool-3-thread-1] INFO com.yourkey.jobs.GetDeviceStatusJob - *** No Lost Devices *** 20 Mar 2014 09:00:00 [pool-5-thread-1] INFO com.yourkey.jobs.GetDeviceStatusJob - *
20 Mar 2014 09:00:00 [pool-3-thread-1] INFO com.yourkey.jobs.GetDeviceStatusJob - *** No Lost Devices ***
20 Mar 2014 09:00:00 [pool-5-thread-1] INFO com.yourkey.jobs.GetDeviceStatusJob - *** No Lost Devices ***
20 Mar 2014 09:00:00 [pool-4-thread-1] INFO com.yourkey.jobs.GetDeviceStatusJob - *** No Lost Devices ***
applicationcontext.xml
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:sec="http://www.springframework.org/schema/security"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xmlns:util="http://www.springframework.org/schema/util"
xmlns:task="http://www.springframework.org/schema/task"
xsi:schemaLocation="
http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-3.1.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-3.1.xsd
http://www.springframework.org/schema/security
http://www.springframework.org/schema/security/spring-security-3.1.xsd
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd
http://www.springframework.org/schema/util
http://www.springframework.org/schema/util/spring-util.xsd
http://www.springframework.org/schema/task
http://www.springframework.org/schema/task/spring-task-3.0.xsd">
-------------------------------------
-------------------------------------
<task:annotation-driven />
<bean id="syncBrandOffersJob" class="com.yourkey.jobs.SyncBrandOffersJob"></bean>
<bean id="getDeviceStatusJob" class="com.yourkey.jobs.GetDeviceStatusJob"></bean>
</beans>
-------------------------------------
-------------------------------------
GetDeviceStatusJob.java
@Service
public class GetDeviceStatusJob {
private static final Logger logger = Logger
.getLogger(GetDeviceStatusJob.class);
@Autowired
private DeviceService deviceService;
public DeviceService getDeviceService() {
return deviceService;
}
public void setDeviceService(DeviceService deviceService) {
this.deviceService = deviceService;
}
@Scheduled(cron = "0 0/10 * * * ?")
public void getLostDeviceInfo() {
List<Device> deviceList = deviceService.getAllLostDevices();
if (deviceList != null && !deviceList.isEmpty()) {
for (Device device : deviceList) {
String gcmRegistrationId = device.getGcmRegistrationId();
if (gcmRegistrationId != null) {
String status = null;
if (device.isStatus()) {
status = "LOST";
} else {
status = "Active";
}
String message = device.getMessage();
String jsonString = "{\"status\":\"" + status
+ "\",\"message\":\"" + message
+ "\",\"registration_ids\" : [\""
+ gcmRegistrationId + "\"]}";
System.out.println(jsonString);
NetClientUtil.httpGcmPostClient(jsonString,
"getLostDeviceInfo");
}else{
logger.info("**** gcmRegistrationId not present for device" + device.getId());
}
}
}else{
logger.info("*** No Lost Devices ***");
}
}
}
@服务
公共类GetDeviceStatusJob{
专用静态最终记录器=记录器
.getLogger(GetDeviceStatusJob.class);
@自动连线
专用设备服务设备服务;
公共设备服务getDeviceService(){
返回设备服务;
}
公共无效设置设备服务(设备服务设备服务){
this.deviceService=设备服务;
}
@计划(cron=“0/10***?”)
public void getLostDeviceInfo(){
List deviceList=deviceService.getAllLostDevices();
if(deviceList!=null&&!deviceList.isEmpty()){
用于(设备:deviceList){
字符串gcmRegistrationId=device.getGcmRegistrationId();
如果(gcmRegistrationId!=null){
字符串状态=空;
if(device.isStatus()){
状态=“丢失”;
}否则{
status=“Active”;
}
String message=device.getMessage();
字符串jsonString=“{\”状态\“:\”+状态
+“\”,“\”消息\“:\”+消息
+“\”,“\”注册ID\”:[\“”
+gcmRegistrationId+“\”]}”;
System.out.println(jsonString);
NetClientUtil.httpGcmPostClient(jsonString,
“getLostDeviceInfo”);
}否则{
logger.info(“**gcmrregistrationid不存在于设备”+设备.getId());
}
}
}否则{
logger.info(“***无丢失设备***”);
}
}
}
正如@MaciejWalkowiak所说,正如
确保您没有初始化同一数据库的多个实例
@在运行时调度注释类,除非您确实要调度
回调每个这样的实例。与此相关,请确保
不要在带有注释的bean类上使用@Configurable
@计划并注册为容器中的常规SpringBean:
否则,一旦通过
容器和一次通过@Configurable方面
每个@Scheduled方法被调用两次的结果
将此记录到作业中。如果是同一个实例,则调度会以某种方式错误触发。如果没有,那么您将实例化计划类三次
更新:自从您说它是特定于环境的,并且注意到线程池名称不同,但它们都是各自池中的线程1之后,我对此进行了更多的思考。这意味着您有多个ThreadPoolTaskExecutor
。您是否以某种方式创建了多个容器?请查看日志。您可以看到同一个作业GetDeviceStatusJob同时运行三次。您可以用XML定义bean,并使用@Service进行注释。你确定你不会在不同的上下文中创建这个类的3个实例吗?我确定我不会再创建任何实例。但是,是的,我可以从xml中删除bean实例。我觉得这是一个错误。我会删除它,但不认为会有任何区别。我认为服务和bean一起造成了问题。现在我正在观察日志非常稳定。是的,如果您看到代码,您将看到我在类上和应用程序上下文中使用了@service。我觉得这造成了问题。现在,由于我已经从appcontext中删除了bean def,它工作得很好