Jakarta ee 将EJB本地客户端从JBoss 6迁移到Wildfly 10

在从JBoss 6迁移到WildFly 10的过程中，当获取对遗留应用程序中会话bean的引用时，我面临以下JNDI查找问题

以下代码在JBoss6中工作，它获取对会话bean“OMGenEJB”的引用，然后使用该会话bean获取代理对象“genhome”以与bean交互

    try {
        InitialContext ic = new InitialContext();
        Object objRef = ic.lookup("ejb/OMGenEJB");
        OMGenEJBHome genhome = 
          (OMGenEJBHome) PortableRemoteObject.narrow ( objRef, OMGenEJBHome.class );

ejbhome接口是OMGenEJBHome

EJB实现类是OMGenBean

bean在“ejb jar.xml”中定义如下：

  <session >
     <ejb-name>OMGenEJB</ejb-name>
     <home>com.irisel.oms.ejb.interfaces.OMGenEJBHome</home>
     <remote>com.irisel.oms.ejb.interfaces.OMGenEJB</remote>
     <service-endpoint>com.irisel.oms.ws.OMBrowserEndpoint</service-endpoint>
     <ejb-class>com.irisel.oms.ejb.browser.OMGenBean</ejb-class>
     <session-type>Stateless</session-type>
     <transaction-type>Bean</transaction-type>
  </session>

下面是对打印JNDI条目的修改，如在客户机中看到的，包括在初始上下文和“java:comp/env”中

原来初始上下文是“java:”，因为Mail和TransactionManager的JNDI名称分别为“java:/Mail”和“java:/TransactionManager”。但是，我希望相对路径是相对于java:comp/env的

接下来，我们看到条目“ejb”：

我的问题是

为什么“java:comp/env”不再是默认上下文，而是“java:”

为什么“ejb/OMGenEJB”的查找也会在修改代码中失败

23:23:51680信息[stdout]（默认任务-16）异常：WFLYNAM0062:无法查找env/ejb/OMGenEJB

如果我们尝试查找“ejb”，则查找工作正常

所以我也试过这个：

    try {
        logger.info("Connecting to ejb/OMGenEJB");
        InitialContext ic = new InitialContext();
        NamingEnumeration<NameClassPair> list = ic.list("");
        while (list.hasMore()) {
          System.out.println("ic entry:"+list.next().getName());
        }
        Context envCtx = (Context)ic.lookup("java:comp/env/ejb");
        list = envCtx.list("");
        while (list.hasMore()) {
              System.out.println("envCtx entry:"+list.next().getName());
        }
        Object objRef2 = envCtx.lookup("OMGenEJB");
        logger.info("Narrowing to class OMGenEJBHome #"+OMGenEJBHome.class.hashCode());
        OMGenEJBHome genhome = (OMGenEJBHome)PortableRemoteObject.narrow(objRef2, OMGenEJBHome.class);

        //browser = genhome.create();
        //className = browser.getClassNames();

        genejb = genhome.create();
        appvo = (AppVO) AppVO.readObject64(this.genejb.exec("getApp",null,null));

    } catch (Exception ex) {
        System.out.println("Exception :"+ ex.getMessage());
        ConfigException ce = new ConfigException("Cannot initialize remote EJB client");
        ce.initCause(ex);
        throw ce;
    } 

有效的解决方案是使用全局或应用程序名称，问题是它包含ear名称和版本

"java:global/HolmesBSS-2.0/HolmesEJB-2.0/OMGenEJB!com.irisel.oms.ejb.interfaces.OMGenEJBHome"
"java:app/HolmesEJB-2.0/OMGenEJB!com.irisel.oms.ejb.interfaces.OMGenEJBHome"

这些不起作用

"java:module/OMGenEJB!com.irisel.oms.ejb.browser.OMGenBean"
"java:module/OMGenEJB!com.irisel.oms.ejb.interfaces.OMGenEJBHome"
"java:comp/env/ejb/OMGenEJB"

我想与您确认一下，您是否认为这符合Java-7规范

---

谢谢

Java EE 7的可移植JNDI名称的形式如下：

java:global/<app-name>/<module-name>/<bean-name>!<fully-qualified-bean-interface-name>

注意：您不能使用ejb-jar.xml中的“mappedName”绑定到不同的JNDI名称，因为Wildfly不允许它。Wildfly只允许上述形式

    try {
        logger.info("Connecting to ejb/OMGenEJB");
        InitialContext ic = new InitialContext();
        NamingEnumeration<NameClassPair> list = ic.list("");
        while (list.hasMore()) {
          System.out.println("ic entry:"+list.next().getName());
        }
        Context envCtx = (Context)ic.lookup("java:comp/env/ejb");
        list = envCtx.list("");
        while (list.hasMore()) {
              System.out.println("envCtx entry:"+list.next().getName());
        }
        Object objRef2 = envCtx.lookup("OMGenEJB");
        logger.info("Narrowing to class OMGenEJBHome #"+OMGenEJBHome.class.hashCode());
        OMGenEJBHome genhome = (OMGenEJBHome)PortableRemoteObject.narrow(objRef2, OMGenEJBHome.class);

        //browser = genhome.create();
        //className = browser.getClassNames();

        genejb = genhome.create();
        appvo = (AppVO) AppVO.readObject64(this.genejb.exec("getApp",null,null));

    } catch (Exception ex) {
        System.out.println("Exception :"+ ex.getMessage());
        ConfigException ce = new ConfigException("Cannot initialize remote EJB client");
        ce.initCause(ex);
        throw ce;
    } 

00:35:52,048 INFO  [com.irisel.oms.olapi.CLEJBBrowser] (default task-2) Connecting to ejb/OMGenEJB
00:35:52,823 INFO  [stdout] (default task-2) ic entry:Mail

00:35:53,123 INFO  [stdout] (default task-2) ic entry:TransactionManager

00:35:53,992 INFO  [stdout] (default task-2) envCtx entry:OMBrowserEJB

00:35:54,314 INFO  [stdout] (default task-2) envCtx entry:OMGenEJB

00:36:25,649 INFO  [stdout] (default task-2) Exception :WFLYNAM0062: Failed to lookup env/ejb/OMGenEJB

00:36:25,650 ERROR [stderr] (default task-2) com.irisel.util.ConfigException: Cannot initialize remote EJB client

00:36:25,650 ERROR [stderr] (default task-2)    at com.irisel.oms.olapi.CLEJBBrowser.init2(CLEJBBrowser.java:82)
...
00:36:25,671 ERROR [stderr] (default task-2) Caused by: javax.naming.NamingException: WFLYNAM0062: Failed to lookup env/ejb/OMGenEJB [Root exception is java.lang.RuntimeException: javax.naming.NameNotFoundException: ejb/OMGenEJB -- service jboss.naming.context.java.ejb.OMGenEJB]

00:36:25,671 ERROR [stderr] (default task-2)    at org.jboss.as.naming.ServiceBasedNamingStore.lookup(ServiceBasedNamingStore.java:157)

... ... 39 more

00:36:25,672 ERROR [stderr] (default task-2) Caused by: java.lang.RuntimeException: javax.naming.NameNotFoundException: ejb/OMGenEJB -- service jboss.naming.context.java.ejb.OMGenEJB

00:36:25,672 ERROR [stderr] (default task-2)    at org.jboss.as.ejb3.deployment.processors.EjbLookupInjectionSource$1.getReference(EjbLookupInjectionSource.java:99)

00:36:25,672 ERROR [stderr] (default task-2)    at org.jboss.as.naming.ServiceBasedNamingStore.lookup(ServiceBasedNamingStore.java:143)

00:36:25,676 ERROR [stderr] (default task-2)    ... 44 more

00:36:25,676 ERROR [stderr] (default task-2) Caused by: javax.naming.NameNotFoundException: ejb/OMGenEJB -- service jboss.naming.context.java.ejb.OMGenEJB

00:36:25,676 ERROR [stderr] (default task-2)    at org.jboss.as.naming.ServiceBasedNamingStore.lookup(ServiceBasedNamingStore.java:106)

00:36:25,677 ERROR [stderr] (default task-2)    at org.jboss.as.naming.NamingContext.lookup(NamingContext.java:207)

00:36:25,677 ERROR [stderr] (default task-2)    at org.jboss.as.naming.InitialContext$DefaultInitialContext.lookup(InitialContext.java:235)

00:36:25,677 ERROR [stderr] (default task-2)    at org.jboss.as.naming.NamingContext.lookup(NamingContext.java:193)

00:36:25,677 ERROR [stderr] (default task-2)    at org.jboss.as.naming.NamingContext.lookup(NamingContext.java:189)

00:36:25,677 ERROR [stderr] (default task-2)    at javax.naming.InitialContext.lookup(InitialContext.java:417)

00:36:25,677 ERROR [stderr] (default task-2)    at javax.naming.InitialContext.lookup(InitialContext.java:417)

00:36:25,677 ERROR [stderr] (default task-2)    at org.jboss.as.ejb3.deployment.processors.EjbLookupInjectionSource$1.getReference(EjbLookupInjectionSource.java:81)

00:36:25,677 ERROR [stderr] (default task-2)    ... 45 more

"java:global/HolmesBSS-2.0/HolmesEJB-2.0/OMGenEJB!com.irisel.oms.ejb.interfaces.OMGenEJBHome"
"java:app/HolmesEJB-2.0/OMGenEJB!com.irisel.oms.ejb.interfaces.OMGenEJBHome"

"java:module/OMGenEJB!com.irisel.oms.ejb.browser.OMGenBean"
"java:module/OMGenEJB!com.irisel.oms.ejb.interfaces.OMGenEJBHome"
"java:comp/env/ejb/OMGenEJB"

java:global/<app-name>/<module-name>/<bean-name>!<fully-qualified-bean-interface-name>

<application xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/application_6.xsd" version="6">
    <application-name>myApp</application-name>
</application>

<ejb-jar xmlns = "http://java.sun.com/xml/ns/javaee" 
         version = "3.1"
         xmlns:xsi = "http://www.w3.org/2001/XMLSchema-instance" 
         xsi:schemaLocation = "http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/ejb-jar_3_1.xsd">
    <module-name>myModule</module-name>
</ejb-jar>

java:global/myApp/myModule/OMGenEJB!com.irisel.oms.ejb.interfaces.OMGenEJBHome