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我试图在 Jboss AS 7 中使用依赖注入，但我遇到了巨大的困难。

我已经设置了一个包含 EJB jar 和战争的 EAR。

战争包含一个richfaces 网络应用程序。

我尝试使用以下代码将 ejb jar 中的 EJB 注入到 faces 托管 bean 中：

 public class UserController {

    @EJB(mappedName="UserService")
    private UserFacadeService userService;

    public String getService(){
        if(userService == null){

但是，当我部署 jboss 时，控制台中会出现错误：

rolled back with failure message {"Services with missing/unavailable dependencies" => ["jboss.deployment.subunit.\"GoodByeJohnEAR.ear\".\"GoodByeJohnWeb-1.0-SNAPSHOT.war\".component.\"managed-bean.za.co.gbj.UserController\".START missing [ jboss.naming.context.java.module.GoodByeJohnEAR.\"GoodByeJohnWeb-1.0-SNAPSHOT\".\"env/za.co.gbj.UserController/userService\" ]","jboss.deployment.subunit.\"GoodByeJohnEAR.ear\".\"GoodByeJohnWeb-1.0-SNAPSHOT.war\".jndiDependencyService missing [ jboss.naming.context.java.module.GoodByeJohnEAR.\"GoodByeJohnWeb-1.0-SNAPSHOT\".\"env/za.co.gbj.UserController/userService\" ]","jboss.naming.context.java.module.GoodByeJohnEAR.\"GoodByeJohnWeb-1.0-SNAPSHOT\".\"env/za.co.gbj.UserController/userService\".jboss.deployment.subunit.\"GoodByeJohnEAR.ear\".\"GoodByeJohnWeb-1.0-SNAPSHOT.war\".module.GoodByeJohnEAR.\"GoodByeJohnWeb-1.0-SNAPSHOT\".2 missing [ jboss.naming.context.java.module.GoodByeJohnEAR.\"GoodByeJohnWeb-1.0-SNAPSHOT\".env/UserService ]"]}
09:03:50,576 INFO  [org.jboss.as.server.deployment] (MSC service thread 1-8) Starting deployment of "GoodByeJohnEAR.ear"
09:03:50,670 INFO  [org.jboss.as.server.deployment] (MSC service thread 1-3) Starting deployment of "GoodByeJohnWeb-1.0-SNAPSHOT.war"
09:03:50,670 INFO  [org.jboss.as.server.deployment] (MSC service thread 1-8) Starting deployment of "GoodByeJohnEJB-1.0-SNAPSHOT.jar"
09:03:51,367 WARN  [org.jboss.as.server.deployment.service-loader] (MSC service thread 1-2) Encountered invalid class name "com.sun.faces.vendor.Tomcat6InjectionProvider:org.apache.catalina.util.DefaultAnnotationProcessor" for service type "com.sun.faces.spi.injectionprovider"
09:03:51,367 WARN  [org.jboss.as.server.deployment.service-loader] (MSC service thread 1-2) Encountered invalid class name "com.sun.faces.vendor.Jetty6InjectionProvider:org.mortbay.jetty.plus.annotation.InjectionCollection" for service type "com.sun.faces.spi.injectionprovider"
09:03:51,375 INFO  [org.jboss.as.ejb3.deployment.processors.EjbJndiBindingsDeploymentUnitProcessor] (MSC service thread 1-8) JNDI bindings for session bean named UserFacadeBean in deployment unit subdeployment "GoodByeJohnEJB-1.0-SNAPSHOT.jar" of deployment "GoodByeJohnEAR.ear" are as follows:

    java:global/GoodByeJohnEAR/GoodByeJohnEJB-1.0-SNAPSHOT/UserFacadeBean!za.co.gbj.UserFacadeService
    java:app/GoodByeJohnEJB-1.0-SNAPSHOT/UserFacadeBean!za.co.gbj.UserFacadeService
    java:module/UserFacadeBean!za.co.gbj.UserFacadeService
    java:global/GoodByeJohnEAR/GoodByeJohnEJB-1.0-SNAPSHOT/UserFacadeBean
    java:app/GoodByeJohnEJB-1.0-SNAPSHOT/UserFacadeBean
    java:module/UserFacadeBean

09:03:51,406 INFO  [org.jboss.as.ejb3.deployment.processors.EjbJndiBindingsDeploymentUnitProcessor] (MSC service thread 1-4) JNDI bindings for session bean named UserFacadeBean in deployment unit subdeployment "GoodByeJohnWeb-1.0-SNAPSHOT.war" of deployment "GoodByeJohnEAR.ear" are as follows:

    java:global/GoodByeJohnEAR/GoodByeJohnWeb-1.0-SNAPSHOT/UserFacadeBean!za.co.gbj.UserFacadeService
    java:app/GoodByeJohnWeb-1.0-SNAPSHOT/UserFacadeBean!za.co.gbj.UserFacadeService
    java:module/UserFacadeBean!za.co.gbj.UserFacadeService
    java:global/GoodByeJohnEAR/GoodByeJohnWeb-1.0-SNAPSHOT/UserFacadeBean
    java:app/GoodByeJohnWeb-1.0-SNAPSHOT/UserFacadeBean
    java:module/UserFacadeBean

09:03:51,577 INFO  [org.jboss.as.controller] (DeploymentScanner-threads - 1) Service status report
   New missing/unsatisfied dependencies:
      service jboss.naming.context.java.module.GoodByeJohnEAR."GoodByeJohnWeb-1.0-SNAPSHOT".env/UserService (missing)
      service jboss.naming.context.java.module.GoodByeJohnEAR."GoodByeJohnWeb-1.0-SNAPSHOT"."env/za.co.gbj.UserController/userService" (missing)

请协助！

4

2 回答 2

1

看起来问题可能是您的 WAR 没有定义您的 EJB jar 的依赖项。如果没有，最好为 EJB jar 文件在 WAR 的 META-INF/MANIFEST.MF 中定义一个 Class-Path 条目。

您可能还想检查配置文件并确保将<ear-subdeployments-isolated />标记设置为 false。

<subsystem xmlns="urn:jboss:domain:ee:1.0" >            
  <ear-subdeployments-isolated>false</ear-subdeployments-isolated>
</subsystem>

在 JBoss AS7中也有一些关于类加载的不错的文档。

于 2011-09-15T15:59:11.537 回答
0

首先，确保在你的战争中，你有文件META-INF/MANIFEST.MF，并且有行Class-Path: GoodByeJohnEJB-1.0-SNAPSHOT.jar，

然后在您的 UserController 类中，尝试删除 mappedName，只需添加 EJB 注释。

或者，您可以使用这个：

InitialContext ic = new InitialContext();
UserFacadeService userService = (UserFacadeService )ic.lookup("java:global/GoodByeJohnEAR/GoodByeJohnEJB-1.0-SNAPSHOT/UserFacadeBean");
于 2011-09-16T16:50:03.613 回答