將EJB 2.1從WebSphere 6.1遷移到JBoss EAP 6.1

Question

我正在嘗試從WS 6.1遷移到JBoss EAP 6.1。 我很難使EJB 2.1在JBoss 6.1中工作。

（注意：@ GatewayEjbJndiName @在編譯時被ant替換。）

這是原始的ejb-jar.xml：

<?xml version="1.0" encoding="UTF-8"?>
<ejb-jar id="ejb-jar_ID" version="2.1" xmlns="http://java.sun.com/xml/ns/j2ee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/ejb-jar_2_1.xsd">
    <display-name>ServerGateway</display-name>
    <enterprise-beans>
        <session id="Session_gateway">
            <display-name>GatewayEJBSB</display-name>
            <ejb-name>@GatewayEjbJndiName@</ejb-name>
            <home>ca.company.qc.project.server.gateway.ejb.GatewayEJBRemoteHome</home>
            <remote>ca.company.qc.project.server.gateway.ejb.GatewayEJBRemote</remote>
            <ejb-class>ca.company.qc.project.server.gateway.ejb.GatewayEJBBean</ejb-class>
            <session-type>Stateless</session-type>
            <transaction-type>Container</transaction-type>
        </session>
    </enterprise-beans>
    <assembly-descriptor>
        <container-transaction>
            <method>
                <ejb-name>@GatewayEjbJndiName@</ejb-name>
                <method-name>*</method-name>
            </method>
            <trans-attribute>Required</trans-attribute>
        </container-transaction>
    </assembly-descriptor>
</ejb-jar>

這是（經過許多小時的研究）我提出的JBoss EAP 6.1（ejb-jar.xml）：

<?xml version="1.0" encoding="UTF-8"?>
<ejb-jar id="ejb-jar_ID" version="2.1" xmlns="http://java.sun.com/xml/ns/j2ee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/ejb-jar_2_1.xsd">
    <display-name>ServerGateway</display-name>
    <enterprise-beans>
        <session id="Session_gateway">
            <display-name>GatewayEJBSB</display-name>
            <ejb-name>@GatewayEjbJndiName@</ejb-name>
            <home>ca.company.qc.project.server.gateway.ejb.GatewayEJBRemoteHome</home>
            <remote>ca.company.qc.project.server.gateway.ejb.GatewayEJBRemote</remote>
            <ejb-class>ca.company.qc.project.server.gateway.ejb.GatewayEJBBean</ejb-class>
            <session-type>Stateless</session-type>
            <transaction-type>Container</transaction-type>
            <ejb-ref>
                <ejb-ref-name>ejb/projectGatewayEJB</ejb-ref-name>
                <ejb-ref-type>Session</ejb-ref-type>
                <home>ca.company.qc.project.server.gateway.ejb.GatewayEJBRemoteHome</home>
                <remote>ca.company.qc.project.server.gateway.ejb.GatewayEJBRemote</remote>
            </ejb-ref>
        </session>
    </enterprise-beans>
    <assembly-descriptor>
        <container-transaction>
            <method>
                <ejb-name>@GatewayEjbJndiName@</ejb-name>
                <method-name>*</method-name>
            </method>
            <trans-attribute>Required</trans-attribute>
        </container-transaction>
    </assembly-descriptor>
</ejb-jar>

但是每次嘗試啟動JBoss服務器時，我都會遇到以下錯誤：

[org.jboss.as.ejb3.deployment.processors.EjbJndiBindingsDeploymentUnitProcessor] (MSC service thread 1-3) JNDI bindings for session bean named ProjectGatewayEJB in deployment unit subdeployment "GatewayEJBClientProject.jar" of deployment "Project.ear" are as follows:

    java:global/Project/GatewayEJBClientProject/ProjectGatewayEJB!ca.company.qc.project.server.gateway.ejb.GatewayEJBRemote
    java:app/GatewayEJBClientProject/ProjectGatewayEJB!ca.company.qc.project.server.gateway.ejb.GatewayEJBRemote
    java:module/ProjectGatewayEJB!ca.company.qc.project.server.gateway.ejb.GatewayEJBRemote
    java:jboss/exported/Project/GatewayEJBClientProject/ProjectGatewayEJB!ca.company.qc.project.server.gateway.ejb.GatewayEJBRemote
    java:global/Project/GatewayEJBClientProject/ProjectGatewayEJB!ca.company.qc.project.server.gateway.ejb.GatewayEJBRemoteHome
    java:app/GatewayEJBClientProject/ProjectGatewayEJB!ca.company.qc.project.server.gateway.ejb.GatewayEJBRemoteHome
    java:module/ProjectGatewayEJB!ca.company.qc.project.server.gateway.ejb.GatewayEJBRemoteHome
    java:jboss/exported/Project/GatewayEJBClientProject/ProjectGatewayEJB!ca.company.qc.project.server.gateway.ejb.GatewayEJBRemoteHome

10:54:41,858 ERROR [org.jboss.msc.service.fail] (MSC service thread 1-1) MSC00001: Failed to start service jboss.deployment.subunit."Project.ear"."ProjectWebApp.war".INSTALL: org.jboss.msc.service.StartException in service jboss.deployment.subunit."Project.ear"."ProjectWebApp.war".INSTALL: JBAS018733: Failed to process phase INSTALL of subdeployment "ProjectWebApp.war" of deployment "Project.ear"
    at org.jboss.as.server.deployment.DeploymentUnitPhaseService.start(DeploymentUnitPhaseService.java:127) [jboss-as-server-7.2.0.Alpha1-redhat-4.jar:7.2.0.Alpha1-redhat-4]
    at org.jboss.msc.service.ServiceControllerImpl$StartTask.startService(ServiceControllerImpl.java:1811) [jboss-msc-1.0.4.GA.jar:1.0.4.GA]
    at org.jboss.msc.service.ServiceControllerImpl$StartTask.run(ServiceControllerImpl.java:1746) [jboss-msc-1.0.4.GA.jar:1.0.4.GA]
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) [rt.jar:1.7.0_40]
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) [rt.jar:1.7.0_40]
    at java.lang.Thread.run(Thread.java:724) [rt.jar:1.7.0_40]
Caused by: org.jboss.as.server.deployment.DeploymentUnitProcessingException: JBAS014543: No EJB found with interface of type 'ca.company.qc.project.server.gateway.ejb.GatewayEJBRemoteHome' and name 'ServerGateway.jar#GatewayEJB' for binding java:module/env/ProjectGatewayEJBBean
    at org.jboss.as.ejb3.deployment.processors.EjbInjectionSource.getResourceValue(EjbInjectionSource.java:97)
    at org.jboss.as.ee.component.deployers.ModuleJndiBindingProcessor.addJndiBinding(ModuleJndiBindingProcessor.java:229)
    at org.jboss.as.ee.component.deployers.ModuleJndiBindingProcessor.deploy(ModuleJndiBindingProcessor.java:120)
    at org.jboss.as.server.deployment.DeploymentUnitPhaseService.start(DeploymentUnitPhaseService.java:120) [jboss-as-server-7.2.0.Alpha1-redhat-4.jar:7.2.0.Alpha1-redhat-4]
    ... 5 more

EJBBean / EJBRemote / EJBRemoteBusiness / EJBRemoteHome類中的任何地方都沒有注釋。 因為EJB 2.1不支持它（據我所知）。

我使用“ standalone-full.xml”配置文件運行服務器。 我也嘗試了standalone-ha.xml，但沒有成功。

我真的不知道下一步該怎么辦。

Answer 1

JBoss社區論壇上有一個主題，希望它能幫助您解決問題。

Answer 2

檢查基於規則的自動可插拔遷移工具JBoss Windup 。 它在某種程度上涵蓋了從EJB 2.1到EJB 3的遷移。

如果發現未涵蓋的內容，則Windup團隊將很樂意在http://issues.jboss.org/WINDUPRULE上接受增強功能的請求。

對你的問題：

EJB 3可與standalone.xml ，不需要standalone-ha （代表高可用性，即集群解決方案）。 與web概要文件（Java EE 6規范中指定的web概要文件）相反， full表示完整概要文件。 請參閱Java EE 6 Web配置文件與Java EE 6完整平台 。

我建議遷移到EJB 3，因為Java EE 7已經存在了一段時間，並且大多數應用程序服務器將不再支持EJB2.x。