java - 使用 ManagedExecutorService 时无法在 Wildfly 11 上部署

Question

我正在尝试学习如何在 wildfy 11 上使用托管执行程序服务，但是当我部署应用程序时，出现以下错误:

10:28:34,185 错误 [org.jboss.as.controller.management-operation]( Controller 引导线程)​​WFLYCTL0013:操作(“部署”)失败 - 地址:([(“部署”=>“crowbar- server.war")]) - 失败描述:{

"WFLYCTL0412: Required services that are not installed:" => ["jboss.naming.context.java.module.crowbar-server.crowbar-server.env.jboss.ee.concurrency.executor.default"],

"WFLYCTL0180: Services with missing/unavailable dependencies" => ["jboss.naming.context.java.module.crowbar-server.crowbar-server.env.\"com.ticomgeo.crowbar.server.ejb.ManagedExecutorExample\".mes is missing [jboss.naming.context.java.module.crowbar-server.crowbar-server.env.jboss.ee.concurrency.executor.default]"]

}

如果这是一个愚蠢的问题，我提前道歉，但我对 Wildfly 和 JEE 是全新的。

执行器在standalone.xml中定义。 (我必须删除尖括号，否则它不会显示，不知道如何转义 XML)

subsystem xmlns="urn:jboss:domain:ee:4.0"
        spec-descriptor-property-replacement>false</spec-descriptor-property-replacement
        concurrent
            context-services
                context-service name="default" jndi-name="java:jboss/ee/concurrency/context/default" use-transaction-setup-provider="true"/
            /context-services
            managed-thread-factories
                managed-thread-factory name="default" jndi-name="java:jboss/ee/concurrency/factory/default" context-service="default"/
            /managed-thread-factories
            managed-executor-services
                managed-executor-service
                      name="default"
                      jndi-name="java:jboss/ee/concurrency/executor/default"
                      context-service="default"
                      hung-task-threshold="60000"
                      keepalive-time="5000"/>
            /managed-executor-services
            managed-scheduled-executor-services
                managed-scheduled-executor-service name="default" jndi-name="java:jboss/ee/concurrency/scheduler/default" context-service="default" hung-task-threshold="60000" keepalive-time="3000"/
            /managed-scheduled-executor-services
        /concurrent

引用它的代码非常简单

package com.ticomgeo.crowbar.server.ejb;
import javax.annotation.Resource;
import javax.ejb.Singleton;
import javax.enterprise.concurrent.ManagedExecutorService;

@Singleton(name = "ManagedExecutorExample")
public class ManagedExecutorExample {

  @Resource(lookup = "jboss/ee/concurrency/executor/default")
   private ManagedExecutorService mes;

 public void testMe(int secsToSleep){
   mes.submit(new TestClass());
   System.out.println("Submitted test class");
 }

private class TestClass implements Runnable{
public void run(){
  System.out.println("Running runable");
  try {
      Thread.sleep(10000);
   }catch(Exception e){
  }
  System.out.println("Done Sleeping");
}
}

Answer 1

请尝试使用完整的 JNDI 名称:

@Resource(lookup = "java:jboss/ee/concurrency/executor/default")
private ManagedExecutorService mes;

或者直接将其省略以获取默认资源:

@Resource
private ManagedExecutorService mes;