如何只将EJB3的接口导入客户端？

Question

我做了一个简单的项目来测试 EJB3 实现。

使用maven我在项目中创建了3个模块，分别是“MyEjb”EJB，“MyWeb”这场战争，“MyWeb2”另一场战争。战争模块是EJB的客户端。

问题是，当我部署EAR时，控制台显示有3个EJB上下文，每个模块创建一个。模块MyEjb的EJB上下文不在wars模块之间共享，每个模块都从自己的MyEjb依赖项中获取数据。

我必须在一个单独的JAR中创建EJB接口？我使用Jboss作为应用服务器。

这是完整的项目:https://github.com/AndreaCatania/EjbTest

控制台在这里：

[0m[0m09:32:18,735 INFO    [org.jboss.as.ejb3.deployment.processors.EjbJndiBindingsDeploymentUnitProcessor] (MSC service thread 1-1) JNDI bindings for session bean named TheNamer in deployment unit deployment "MyEjbs-1.0-SNAPSHOT.jar" are as follows:

    java:global/MyEjbs-1.0-SNAPSHOT/TheNamer!com.andreacatania.test.RemoteNamer
    java:app/MyEjbs-1.0-SNAPSHOT/TheNamer!com.andreacatania.test.RemoteNamer
    java:module/TheNamer!com.andreacatania.test.RemoteNamer
    java:jboss/exported/MyEjbs-1.0-SNAPSHOT/TheNamer!com.andreacatania.test.RemoteNamer
    java:global/MyEjbs-1.0-SNAPSHOT/TheNamer
    java:app/MyEjbs-1.0-SNAPSHOT/TheNamer
    java:module/TheNamer

[0m[0m09:32:19,137 INFO  [org.jboss.as.ejb3.deployment.processors.EjbJndiBindingsDeploymentUnitProcessor] (MSC service thread 1-5) JNDI bindings for session bean named TheNamer in deployment unit deployment "MyWeb.war" are as follows:

    java:global/MyWeb/TheNamer!com.andreacatania.test.RemoteNamer
    java:app/MyWeb/TheNamer!com.andreacatania.test.RemoteNamer
    java:module/TheNamer!com.andreacatania.test.RemoteNamer
    java:jboss/exported/MyWeb/TheNamer!com.andreacatania.test.RemoteNamer
    java:global/MyWeb/TheNamer
    java:app/MyWeb/TheNamer
    java:module/TheNamer

[0m[0m09:32:19,142 INFO  [org.jboss.as.ejb3.deployment.processors.EjbJndiBindingsDeploymentUnitProcessor] (MSC service thread 1-6) JNDI bindings for session bean named TheNamer in deployment unit deployment "MyWeb2.war" are as follows:

    java:global/MyWeb2/TheNamer!com.andreacatania.test.RemoteNamer
    java:app/MyWeb2/TheNamer!com.andreacatania.test.RemoteNamer
    java:module/TheNamer!com.andreacatania.test.RemoteNamer
    java:jboss/exported/MyWeb/TheNamer!com.andreacatania.test.RemoteNamer
    java:global/MyWeb2/TheNamer
    java:app/MyWeb2/TheNamer
    java:module/TheNamer

Answer 1

您需要过滤掉哪些内容应该进入 ejb-client 模块，哪些内容不应该进入。如果未指定此参数，则客户端 jar 将与普通 jar 完全相同。实现此目的的一种简单方法是将接口放在名为 api 的包中，并在客户端 jar 中包含与此匹配的内容。

<plugin>
    <groupId>org.apache.maven.plugins</groupId>
    <artifactId>maven-ejb-plugin</artifactId>
    <version>2.3</version>
    <configuration>
         <!--ejbVersion>3.1</ejbVersion-->
         <generateClient>true</generateClient>
         <clientIncludes>
            <clientInclude>**/api/*</clientInclude>
         </clientIncludes>
    </configuration>
</plugin>