@远程JNDI通信:Wildfly到JBoss AS 5.1.0.GA [英] @Remote JNDI Communication: Wildfly to JBoss AS 5.1.0.GA

问题描述

体系结构: Windows客户端-> Wildfly JAX-RS服务-> JBoss 5.1.0.GA旧版系统.

Architecture: Windows Client -> Wildfly JAX-RS Services -> JBoss 5.1.0.GA legacy system.

我正在获取java.lang.ClassCastException:在Wildfly JAX-RS服务与JBoss 5.1.0.GA旧版系统之间进行通信时，无法将javax.naming.Reference强制转换为com.interfaces.GroupBookingManagerRemote.

I am getting a java.lang.ClassCastException: javax.naming.Reference cannot be cast to com.interfaces.GroupBookingManagerRemote when communicating here between Wildfly JAX-RS Services and JBoss 5.1.0.GA legacy system.

当我从Wildfly到JBoss AS 5.1.0.GA通信时，我试图使用JNDI进行连接.

As I am communicating from Wildfly to JBoss AS 5.1.0.GA I am attempting to connect using JNDI.

在我的Wildfly Server Maven pom中，我包括:

In my Wildfly Server Maven pom I include:

<dependency>
    <groupId>jboss</groupId>
    <artifactId>jnp-client</artifactId>
    <version>4.2.2.GA</version>
</dependency>

这使我可以访问所需的org.jnp.*类和接口.

This gives me access to the required org.jnp.* classes and interfaces.

我只需使用以下代码连接到我的远程计算机，然后取回GroupBookingManager.但是，当我尝试将类强制转换为GroupBookingManagerRemote接口时，会出现问题.

I simply use the following code to connect to my remote machine and retrieve back a GroupBookingManager. However the issue appears when I attempt to cast the class to the interface GroupBookingManagerRemote.

Properties env = new Properties();
env.setProperty(Context.PROVIDER_URL, "jnp://myremoteserver:1099");
env.setProperty(Context.INITIAL_CONTEXT_FACTORY, "org.jnp.interfaces.NamingContextFactory");
env.setProperty(Context.URL_PKG_PREFIXES, "org.jboss.naming:org.jnp.interfaces"); 
InitialContext initialContext = new InitialContext(env);

Object ref = initialContext.lookup("MyEARFile/GroupBookingManager/remote");
if (ref != null) {
    bookingManager = (GroupBookingManagerRemote) ref; // java.lang.ClassCastException: javax.naming.Reference cannot be cast
}

我有一个myclient.jar文件，该文件已添加到包含远程接口GroupBookingManagerRemote的Wildfly应用程序中.

I have a myclient.jar file which I have added to my Wildfly application that contains the remote interface GroupBookingManagerRemote.

有人看到我所做的任何事情吗?

Does anyone see any issue with what I have done?

谢谢

Darren

推荐答案

感谢您对Gimby的帮助，

Thanks for your help Gimby,

经过一番混乱之后，我自己找到了答案.

I found the answer myself after a bit more messing about.

从Wildfly 8.1.0(客户端)-> JBoss AS 5

From Wildfly 8.1.0 (client) -> JBoss AS 5

您不需要任何JBoss 5罐子

You do not require any JBoss 5 jars

首先，您需要引用要在客户端使用的接口.这可以在your-project-client.jar中.如果使用Maven，则可以创建存储库并使用mvn

Firstly you need a reference to the interface that you wish to use on the client side. This can be in a your-project-client.jar. If using Maven you can create a repository and build the Maven directory structure using mvn

mvn install:install-file -DlocalRepositoryPath=DirectoryName -DcreateChecksum=true -Dpackaging=jar -Dfile=Path-to-you-project-client.jar -DgroupId=YourGroupId -DartifactId=YourartifactId -Dversion=1.0

然后，为了连接到远程计算机并将接口投射回您的接口，请使用:

Then in order to connect to the remote machine and cast the interface back to your-interface, you use:

final Properties env = new Properties();
env.put(Context.INITIAL_CONTEXT_FACTORY, org.jboss.naming.remote.client.InitialContextFactory.class.getName());
env.put(Context.PROVIDER_URL, "remote://remoteserver:4447");
InitialContext initialContext = new InitialContext(env);

这将使用Wildfly remote://(位于远程命名中)和wildfly-ejb-client-bom中的ejb

This uses Wildfly remote:// which is in remote naming and ejb in wildfly-ejb-client-bom

<dependency>
    <groupId>org.wildfly</groupId>
    <artifactId>wildfly-ejb-client-bom</artifactId>
    <version>8.1.0.Final</version>
    <scope>compile</scope>
    <type>pom</type>
</dependency> 

我也需要这种依赖性进行通信

And I also required this dependency for communication

<dependency>
    <groupId>org.jboss.xnio</groupId>
    <artifactId>xnio-nio</artifactId>
    <version>3.2.2.Final</version>
    <scope>compile</scope>
</dependency>

和这一个用于远程命名.

and this one for the remote naming.

<dependency>
    <groupId>org.jboss</groupId>
    <artifactId>jboss-remote-naming</artifactId>
    <version>2.0.1.Final</version>
</dependency>                   

还要注意，该端口不是JBoss 5 JNDI:1099的常用端口，这是默认的远程端口:4447

Also note the port is not the ususal port for JBoss 5 JNDI:1099 this is the Default Remoting Port : 4447

Object ref = initialContext.lookup("ejb:Your-EAR/YourClass/remote!" + YouClass.class.getName());

然后您可以将您的引用投射到您的界面上，并照常使用它.

You can then cast your reference to your interface and use it as normal.

希望这是有道理的.

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