如何为 EAR 的 application.xml 中的模块指定类路径
所以我有一个包含所有模块的 EAR。所有模块使用的共享 JAR 都放置在 EAR 的默认 ./lib/ 文件夹中。我还有多个版本的 JAR 文件，每个模块将使用其一个版本。例如，如果我的 EAR 中有以下战争：
project1.war
project2.war
project3.war
并且我有几个 JAR 文件：
common-classes-1.0.jar
common-classes-1.1.jar
那么，如何将project1 与common-classes-1.0.jar 关联，以及project2 和project3 与common-classes-1.1.jar 关联？
提前致谢
So I have an EAR that contains all of my modules. The shared JARs that are used by all the modules are placed in the default ./lib/ folder of the EAR. I also have multiple version of a JAR file that each module will use a version of. For example, if I have the following wars in my EAR:
project1.war
project2.war
project3.war
And I have a couple of JAR files:
common-classes-1.0.jar
common-classes-1.1.jar
So, how can I associate project1 with common-classes-1.0.jar, and project2 and project3 with common-classes-1.1.jar?
Thanks in advance
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或者，您可以“重新打包”您的 war 文件以包含所需的 commons Jars。通过这种方式，您可以保留单个 EAR 文件。
Alternatively, you can "repackage" your war files to include the desidered commons Jars. In this way, you can keep a single EAR file.
你不能； EAR 对其类路径没有这种级别的精细控制，除非您的应用程序服务器具有允许您执行此操作的非标准扩展。
这是 OSGi 设计的用例，但标准 JavaEE EAR 无法做到这一点。
最简单的选择是将 EAR 分成 2 个，一个包含
project1.war和common-classes-1.0.jar，另一个包含project2.war、project3.war和common-classes-1.1.jar。You can't; EARs don't have that level of fine control over their classpath, unless your app-server has non-standard extensions that let you do this.
This is the sort of use-case that OSGi was designed for, but standard JavaEE EARs can't do this.
Your simplest option is to break up your EAR into 2, one with
project1.warandcommon-classes-1.0.jar, and the other withproject2.war,project3.warandcommon-classes-1.1.jar.