在 WebSphere 7 中将队列绑定到 EJB 3.0 MDB

发布于 2024-11-13 11:24:00 字数 1170 浏览 5 评论 0原文

我正在或者试图在 WebSphere 7 上编写 Baby's First MDB。我几乎已经精疲力竭，竭尽全力想让它发挥作用。看来我已将所有内容设置正确，但当我将消息放入关联队列时却没有得到任何响应。

以下是 EAR 文件设置：

simplemdb.ear
    META-INF
        Manifest.mf
        application.xml
    simplemdb.jar
        META-INF
            Manifest.mf
            ejb-jar.xml
        com
            [ classes go here ]

我在 ejb-jar.xml 中找不到任何用于定义队列的 JNDI 名称的语法，因此我：

定义一个 WebSphere 激活规范。名称 SimpleMDBActivationSpec，JNDI 名称 jms/SimpleActivationSpec，目标 jms/SimpleMDBQueue。
定义 WebSphere 队列。名称 SimpleMDBQueue，JNDI 名称 jms/SimpleMDBQueue，队列名称 SIMPLE.MDB.QUEUE。
定义一个 MQ 队列，名称为 SIMPLE.MDB.QUEUE。
部署 EAR 文件。在部署过程中，系统会要求我输入绑定信息。我选择“激活规范”，然后分别将“目标资源 JNDI 名称”和“目标 JNDI 名称”指向激活规范和队列。

（MDB代码没有注释。）此时，app指向spec和queue，spec指向queue——腰带和吊带。当然，我想应用程序因此知道队列。满怀希望，我在队列中放了一条消息，然后……什么也没有。 onMessage 事件应该使用 System.out 来记录消息。我没有看到任何消息。

关于这一点的明确文档因其缺失而引人注目。谷歌提供了很多结果，但没有一个详细说明配置如何组合在一起。有很多关于 ibm-ejb-jar-bnd.xmi 的问题，但该文件的示例很晦涩难懂，充满了不透明的数字，没有解释它们是如何生成的，或者它们与配置的其他部分如何相关。

看在上帝的份上。我想做的就是部署一个 MDB，并在我将消息放入队列时让它写入“Hello, world”。我使用 vi 和 ant 作为我的开发和构建工具。有人可以告诉我我缺少什么吗？

编辑：添加“zos”标签。

原文

I'm writing, or trying to write, Baby's First MDB on WebSphere 7. I have nearly no hair left, having pulled it all out trying to get the thing to work. It appears that I've got everything set up right, but I get no response when I put a message to the associated queue.

Here's the EAR file setup:

simplemdb.ear
    META-INF
        Manifest.mf
        application.xml
    simplemdb.jar
        META-INF
            Manifest.mf
            ejb-jar.xml
        com
            [ classes go here ]

I can't find any syntax for defining the queue's JNDI name in ejb-jar.xml, so instead I:

Define a WebSphere activation spec. Name SimpleMDBActivationSpec, JNDI name jms/SimpleActivationSpec, Destination jms/SimpleMDBQueue.
Define a WebSphere queue. Name SimpleMDBQueue, JNDI name jms/SimpleMDBQueue, Queue name SIMPLE.MDB.QUEUE.
Define an MQ queue, name SIMPLE.MDB.QUEUE.
Deploy the EAR file. During the deployment, I'm asked to enter binding information. I select Activation Specification, then point the Target Resource JNDI Name and Destination JNDI name at the activation spec and queue, respectively.

(The MDB code has no annotations.) At this point, the app points to the spec and queue, and the spec points to the queue - belt and suspenders. Naturally, I imagine that the app therefore knows about the queue. Full of hope, I put a message on the queue, and ... nothing. The onMessage event is supposed to use System.out to log a message. I see no message.

Clear documentation on this is conspicuous by its absence. Google gives LOTS of results, but none of them details how the configuration all fits together. There's lots of hand-waving about ibm-ejb-jar-bnd.xmi, but examples of the file are arcane, full of opaque numbers with no explanation about how they were generated, or how they relate to other parts of the configuration.

For goodness' sake. All I want to do is deploy an MDB, and have it write "Hello, world" when I put a message to a queue. I'm using vi and ant as my development and build tools. Can anybody out there give me an idea about what I'm missing?

Edit: "zos" tag added.

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