java - 习 :include in xml file within jar file does not work in WildFly

Question

场景如下:

我将我的应用程序运行所需的几个 .xml(某种配置)文件捆绑在一个 .jar 文件中。 jar 文件具有以下结构:

settings-1.0.0.jar
˪ resources/
  ˪ 1.xml
  ˪ 2.xml
  ˪ 3.xml
˪ META-INF/
  ˪ MANIFEST.MF

1.xml 包含以下内容:

<?xml version="1.0" encoding="UTF-8"?>
<document xmlns:xi="http://www.w3.org/2001/XInclude">
    <!-- Include 2 -->
    <xi:include
        href="resource:resources/2.xml" />
    <!-- Include 3 -->
    <xi:include
        href="resource:resources/3.xml" />
    <!--
    <map>
    </map>
    -->
</document>

基于 this文章。尝试访问这些包含时(成功部署我的应用程序后)我收到以下错误:

Caused by: org.xml.sax.SAXParseException; lineNumber: 5; columnNumber: 43; An 'include' failed, and no 'fallback' element was found.
    at org.apache.xerces.parsers.DOMParser.parse(DOMParser.java:245)
    at org.apache.xerces.jaxp.DocumentBuilderImpl.parse(DocumentBuilderImpl.java:298)
    at javax.xml.parsers.DocumentBuilder.parse(DocumentBuilder.java:121)
    at org.zcore.dkp.backend.mapper.MappingParser.parse(MappingParser.java:60)
    ... 327 more

我尝试了(错误)了所有可以想到的选项。 xi:include将 .xml 文件放入作为 WildFly 模块安装的 jar 文件的正确组合是什么？

编辑:这是加载 xml 文件的方式:

private void loadBackendMapping() {
    try {
        BackendMappingParser parser = new BackendMappingParser();
        InputStream in = ResourceLoaderHelper.getResourceAsStream(BACKEND_MAPPING_RESOURCE);
        if (in == null) {
            throw new FileNotFoundException();
        }
        try {
            parser.parse(in);
        } finally {
            try {
                in.close();
            } catch (IOException e) {
                log.warn("Failed to close " + BACKEND_MAPPING_RESOURCE, e);
            }
        }
        backendMapping = parser.getMapping();
        if (log.isDebugEnabled()) {
            log.debug(BACKEND_MAPPING_RESOURCE + " successfully loaded!");
        }
    } catch (FileNotFoundException e) {
        log.warn("\"" + BACKEND_MAPPING_RESOURCE + "\" not found!");
        backendMapping = new BackendMapping();
    } catch (Exception e) {
        throw new CenterwareSystemException("Failed to parse " + BACKEND_MAPPING_RESOURCE, e);
    }
}

BACKEND_MAPPING_RESOURCE 包含文件名 (1.xml)。

Answer 1

这取决于您的 XML 解析器。

根据您的异常(exception)情况，您似乎使用了 SAX。
试试这篇文章: https://www.ibm.com/developerworks/library/x-tipentres/

上述文档使用 SAX API 的 EntityResolver 接口(interface)在 XML 文档中定位资源。