我无法设置我的 jndi.properties 来访问 Jboss 5 上的远程 EJB

Question

我正在尝试设置 Jboss 服务器“客户端”（版本 5.1.0）以使用来自另一个 Jboss 服务器（10.90.0.91）的远程 EJB，但我无法使用Jboss 客户端。

我可以在我的客户端上使用这个简单的代码获取远程 EJB：

        InitialContext ctx = null;
        try {
            Hashtable<String, String> jndiProps = new Hashtable<String, String>();
            jndiProps.put(InitialContext.INITIAL_CONTEXT_FACTORY, "org.jnp.interfaces.NamingContextFactory");
            jndiProps.put(InitialContext.PROVIDER_URL, "jnp://10.90.0.91:1099");
            ctx = new InitialContext(jndiProps);
            return ctx.lookup(jndiName);
        } catch (NamingException e) {
            throw new RuntimeException(e);
        }

这很好用。

现在我想用这个属性设置 Jboss 客户端。但是，如果我编辑现有的 jndi.properties 文件，本地化为 server/{application}/conf/ 来自：

# DO NOT EDIT THIS FILE UNLESS YOU KNOW WHAT YOU ARE DOING
#
java.naming.factory.initial=org.jboss.iiop.naming.ORBInitialContextFactory
java.naming.factory.url.pkgs=org.jboss.naming:org.jnp.interfaces

收件人：

# DO NOT EDIT THIS FILE UNLESS YOU KNOW WHAT YOU ARE DOING
#
java.naming.factory.initial=org.jnp.interfaces.NamingContextFactory
java.naming.provider.url=jnp://10.90.0.91:1099

我在启动 Jboss 客户端时收到一些错误（显然，我不知道自己在做什么 :)）：

2016-08-19 10:17:41,645 ERROR [org.jboss.kernel.plugins.dependency.AbstractKernelController] (main) Error installing to Start: name=HASessionStateService state=Create
javax.naming.NameAlreadyBoundException: Default
    at org.jnp.server.NamingServer.bind(NamingServer.java:209)
    at org.jnp.server.NamingServer.bind(NamingServer.java:167)
[...]

2016-08-19 10:17:42,767 ERROR [org.jboss.kernel.plugins.dependency.AbstractKernelController] (main) Error installing to Start: name=ProfileServiceProxyFactory state=Create
javax.naming.NameAlreadyBoundException: ProfileService
    at org.jnp.server.NamingServer.bind(NamingServer.java:209)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
[...]

2016-08-19 10:17:44,778 ERROR [org.jboss.kernel.plugins.dependency.AbstractKernelController] (main) Error installing to Start: name=jboss:service=ClientUserTransaction state=Create mode=Manual requiredState=Installed
javax.naming.NameAlreadyBoundException: UserTransaction
    at org.jnp.server.NamingServer.bind(NamingServer.java:209)
    at sun.reflect.GeneratedMethodAccessor487.invoke(Unknown Source)
[...]

在决赛中：

2016-08-19 10:17:51,993 ERROR [org.jboss.system.server.profileservice.ProfileServiceBootstrap] (main) Failed to load profile: Summary of incomplete deployments (SEE PREVIOUS ERRORS FOR DETAILS):

DEPLOYMENTS MISSING DEPENDENCIES:
  Deployment "ProfileServiceInvocationHandler" is missing the following dependencies:
    Dependency "ProfileServiceProxyFactory" (should be in state "Configured", but is actually in state "**ERROR**")
    Dependency "ProfileServiceProxyFactory" (should be in state "Configured", but is actually in state "**ERROR**")

DEPLOYMENTS IN ERROR:
  Deployment "jboss:service=ClientUserTransaction" is in error due to the following reason(s): javax.naming.NameAlreadyBoundException: UserTransaction
  Deployment "HASessionStateService" is in error due to the following reason(s): javax.naming.NameAlreadyBoundException: Default
  Deployment "ProfileServiceProxyFactory" is in error due to the following reason(s): javax.naming.NameAlreadyBoundException: ProfileService, **ERROR**

所以，我认为我无法触及该文件中已经存在的 JNDI 属性。

如果 jndi.properties 文件因为 JBoss 本身正在使用而无法更改，我可以在哪个位置将 JNDI 查找设置设置为 Jboss 5 中的远程 EJB？如何在不将 jndi.properties 文件放在我的 WAR 文件中的情况下将 jndi.properties 文件配置为在应用程序类路径中可用？

谢谢！

Answer 1

嗯，我找到了另一个解决方案。

我在 Jboss 的配置目录中创建了一个名为 jndi-remote.properties 的新文件：

{jboss_home}/server/default/conf/jndi-remote.properties

我从 Java 访问 Jboss 配置目录 (System.getProperty("jboss.server.config.url")) 中的文件：

String fileName = System.getProperty("jboss.server.config.url") + "/" + "jndi-remote.properties";

Properties properties = null;
try {
    URL url = new URL(fileName);
    if(new File(url.toURI()).exists()) { 
        properties = new Properties();
        properties.load(url.openStream());
        LOGGER.info("The file " + "jndi-remote.properties" + " was loaded from " + fileName);
    }
} catch (MalformedURLException e) {
    //throw
} catch (URISyntaxException e) {
    //throw
} catch (IOException e) {
    //throw
} 

并初始化我的 InitialContext：

if (properties != null) {
    ctx = new InitialContext(properties);
}

作品:)。

Answer 2

另一种方法是在您的 jboss-service.xml 文件中配置 org.jboss.naming.ExternalContext MBean：

<mbean code="org.jboss.naming.ExternalContext" 
       name="jboss.jndi:service=ExternalContext,jndiName=external/server2">
    <attribute name="JndiName">external/server2</attribute>
    <attribute name="Properties">
        java.naming.factory.initial=org.jnp.interfaces.NamingContextFactory
        java.naming.provider.url=jnp://10.90.0.91:1099
        <!-- other properties as needed -->
    </attribute>
    <attribute name="InitialContext"> javax.naming.IntialContext </attribute>
    <attribute name="RemoteAccess">false</attribute>
</mbean>

您执行查找的 java 代码将变为：

 Context initialContext = new InitialContext();
 return initialContext.lookup("external/server2/" + jndiName);

您甚至可以在设置后使用本地管理控制台中的 JNDIView 导航远程 JNDI 树。

更多信息可以在org.jboss.naming.ExternalContext MBean找到。