Websphere中的Spring Commonj.Workmanager

问题描述

在Websphere中运行spring的workmanager任务执行程序时收到异常.以下是我的代码

Recieving an exception while running workmanager task executor of spring in websphere.The following is my code

<bean id="workManager" class="org.springframework.scheduling.commonj.WorkManagerTaskExecutor">
    <property name="workManagerName" value="wm/MyWorkManager"/>
    <property name="resourceRef" value="false"/>
</bean>

<bean name="myWorkManager" class="com.spring.test.services.concurrent.ConcurrentWorkManager" />
<bean name="myWorkListener" class="com.spring.test.services.concurrent.ConcurrentWorkListener" />

我的ConcurrentWorkManager中的代码

Code in my ConcurrentWorkManager

@Autowired
private WorkManagerTaskExecutor workManager;

@Autowired
private WorkListener myWorkListener;

    if(workList==null){
     throw new WorkException("There are no works present in worklist to do work");
    }

    ArrayList<WorkItem> workItems = new ArrayList<WorkItem>();
    for(Work work : workList){
        workItems.add(workManager.schedule(work,myWorkListener));
    }
    workManager.waitForAll(workItems,WorkManager.INDEFINITE);


    for(WorkItem work:workItems){
        ConcurrentWorker worker=(ConcurrentWorker)work.getResult();
        resultString.add(worker.getResult());
    }

现在，当我执行我的代码时，它在workmanager.schedule(work)方法中给出了stackoverflow异常

Now when i am executing my code it is giving stackoverflow exception at workmanager.schedule(work) method

stackoverflow异常

stackoverflow exception

at org.springframework.scheduling.commonj.WorkManagerTaskExecutor.schedule(WorkManagerTaskExecutor.java:202)
at org.springframework.scheduling.commonj.WorkManagerTaskExecutor.schedule(WorkManagerTaskExecutor.java:202)
at org.springframework.scheduling.commonj.WorkManagerTaskExecutor.schedule(WorkManagerTaskExecutor.java:202)
at org.springframework.scheduling.commonj.WorkManagerTaskExecutor.schedule(WorkManagerTaskExecutor.java:202)
at org.springframework.scheduling.commonj.WorkManagerTaskExecutor.schedule(WorkManagerTaskExecutor.java:202)
at org.springframework.scheduling.commonj.WorkManagerTaskExecutor.schedule(WorkManagerTaskExecutor.java:202)
at org.springframework.scheduling.commonj.WorkManagerTaskExecutor.schedule(WorkManagerTaskExecutor.java:202)
at org.springframework.scheduling.commonj.WorkManagerTaskExecutor.schedule(WorkManagerTaskExecutor.java:202)
at org.springframework.scheduling.commonj.WorkManagerTaskExecutor.schedule(WorkManagerTaskExecutor.java:202)
at org.springframework.scheduling.commonj.WorkManagerTaskExecutor.schedule(WorkManagerTaskExecutor.java:202)
at org.springframework.scheduling.commonj.WorkManagerTaskExecutor.schedule(WorkManagerTaskExecutor.java:202)
at org.springframework.scheduling.commonj.WorkManagerTaskExecutor.schedule(WorkManagerTaskExecutor.java:202)
at org.springframework.scheduling.commonj.WorkManagerTaskExecutor.schedule(WorkManagerTaskExecutor.java:202)
at org.springframework.scheduling.commonj.WorkManagerTaskExecutor.schedule(WorkManagerTaskExecutor.java:202)
at org.springframework.scheduling.commonj.WorkManagerTaskExecutor.schedule(WorkManagerTaskExecutor.java:202)
at org.springframework.scheduling.commonj.WorkManagerTaskExecutor.schedule(WorkManagerTaskExecutor.java:202)

推荐答案

如何在IBM Websphere(WS)应用程序服务器下设置和使用Spring WorkManagerTaskExecutor

(Yosi Lev撰写)

How to set and work with Spring WorkManagerTaskExecutor under IBM Websphere (WS) application server

(by Yosi Lev)

在WS-AS下开发应用程序时，必须运行线程，您应该创建并使用称为工作管理器"的特殊WS内部资源.这是在IBM Websphere应用程序服务器下运行托管线程的方法.

When developing applications under WS-AS and you have to run threads, you should create and use a special WS internal resource called 'Work-Manager'.This is the approach to run managed threads under IBM Websphere application server.

遵循以下步骤:首先，在Websphere上定义工作管理器资源，然后在Spring中连接并使用它:
1.登录到WS管理控制台
2.选择:资源->异步bean->工作管理器.
3.选择作用域服务器+单元格
4.按下[新建]按钮
5.定义工作经理
还定义您的工作经理JNDI名称，
例如:wm/taskex11
6.在spring-config-file.xml中添加如下内容:

Adhere the following Stages to: first, define a work-manager resource on Websphere and after that, connect and use it in Spring:
1. Login into WS administrative console
2. Select: Resources -> Asynchronous beans -> Work managers.
3. Select a scope server+cell
4. Press the [new] button
5. define a Work-manager
also define your Work-manager JNDI name,
for example : wm/taskex11
6. In spring-config-file.xml add a as following:

    <bean id="myTaskExecutor"
       class="org.springframework.scheduling.commonj.WorkManagerTaskExecutor">
      <property name="workManagerName" value="wm/taskex11" />
    </bean>

注意！
请参阅"workManagerName"属性值.
这里最重要的是，定义与您
相同的Work-manager JNDI名称 在第5阶段(以上)的Websphere管理控制台中指定.
这就是Spring工作经理如何知道应该定位哪个WS JNDI的方式
利用WS定义的资源.

NOTE !
See the "workManagerName" property value.
The most important thing here, is to define the same Work-manager JNDI name you
specified in the Websphere admin console on stage 5 (above).
This is how Spring work-manager knows which WS JNDI it should locate
to exploit WS defined resource.

似乎这是在IBM WS AS下运行托管线程的唯一方法.
7.在Spring中定义了这个(第6阶段)红外线之后，您可以将其注入到
注入任何其他bean或资源时，其他应用程序bean:

Seems this is the only way to run managed threads under IBM WS AS.
7. As you have this (stage-6) infra-bean defined in Spring, you can inject it into your
other application beans as you inject any other bean or resource:

@Autowired
private WorkManagerTaskExecutor workManagerTaskExecutor;

8.创建一个Runnable对象，并将其提供给workManagerTaskExecutor的execute()
方法:

8. Create a Runnable object and provide it to the workManagerTaskExecutor's execute()
method:

Runnable r1 = new Runnable(){
@Override
public void run() {
for(int i = 0 ;  i < 100;i++){
            logger.info("run() method of Runnable. i=["+i+"], thread:["
                                   + Thread.currentThread().getName()+"]");
            try {
                Thread.sleep(500L);
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
        }
    }//run
};//anonymous
workManagerTaskExecutor.execute(r1);
workManagerTaskExecutor.execute(r1);

祝你好运，
尤西·列夫

Good Luck,
Yosi Lev

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