WildFly中的类加载

Question

考虑下面的结构：代码> JBASS部署结构。ear的xml内部META-INF

<!-- Make sub deployments not isolated so they can see each others classes without a Class-Path entry (default is true) -->  
<ear-subdeployments-isolated>false</ear-subdeployments-isolated>  

<deployment>  
    <!-- Exclusions allow you to prevent the server from automatically adding some dependencies -->  
    <exclusions>  
        <module name="org.apache.xerces" />  
    </exclusions>  
</deployment>  

<sub-deployment name="mySubDeployment.war">  
    <exclusions>  
        <module name="org.apache.log4j" />  
    </exclusions>  
    <dependencies>  
        <system>  
            <paths>  
                <path name="com/sun/org/apache/xerces/internal/dom"/>  
                <path name="com/sun/org/apache/xerces/internal/xni"/>  
                <path name="com/sun/org/apache/xerces/internal/jaxp"/>  
            </paths>  
        </system>  
    </dependencies>  
</sub-deployment>  

鉴于此，我排除了defaultorg。阿帕奇。xerces部署模块（第11行）和部署自定义xercesImpl。jar位于APP-INF/lib文件夹或ear中。我还为mySubDeployment添加了路径依赖项。war子部署。

xerces类将从何处加载mySubDeployment.war？从WildFly的默认com.apache.xerces模块或部署在APP-INF/lib中的自定义jar？

在子部署中添加路径依赖项的确切含义是什么？这会忽略主部署下的排除（即，org.apache.xerces）吗？

Answer 1

你不应该真的需要这些路径。您还必须为每个子部署排除Xerce。

此外，APP-INF目录不是标准JavaEE目录。您需要将库放在EAR的/lib目录中。