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我正在为 DITA-OT PDF2 编写一个插件。在这个插件中，我需要为 Saxon XSLT 定义扩展函数。我遵循了 dita-ot 网站上的教程： https ://www.dita-ot.org/3.3/topics/implement-saxon-extension-functions.html 和 https://www.dita-ot.org/3.3 /topics/plugin-javalib.html

注意：我使用的是 DITA OT 3.3.1

我的插件中有这个功能，指向包含我的扩展功能的 jar：

<feature extension="dita.conductor.lib.import" file="./xslt-extension.jar"/>

我收到此错误：

transform.topic2fo.main:
 [pipeline] Static error in {ftd:lastApplicability()} in expression in xsl:variable/@select on line 30 column 79 of applicability.xsl:
 [pipeline]   XPST0017: Cannot find a 0-argument function named {https://orlandotechpubs.com/}lastApplicability()
 [pipeline] Static error near {...eApplicability($applicabili...} in expression in xsl:value-of/@select on line 99 column 69 of applicability.xsl:
 [pipeline]   XPST0017: Cannot find a 1-argument function named {https://orlandotechpubs.com/}writeApplicability()

BUILD FAILED
C:\Users\d_bo\Desktop\test-dita-ot-pdf\test\sample_pdf.xml:9: The following error occurred while executing this line:
C:\Users\d_bo\Desktop\test-dita-ot-pdf\dita-ot-3.3.1\plugins\org.dita.base\build.xml:31: The following error occurred while executing this line:
C:\Users\d_bo\Desktop\test-dita-ot-pdf\dita-ot-3.3.1\plugins\org.dita.pdf2\build.xml:151: The following error occurred while executing this line:
C:\Users\d_bo\Desktop\test-dita-ot-pdf\dita-ot-3.3.1\plugins\org.dita.pdf2\build.xml:291: java.lang.RuntimeException: Failed to compile stylesheet 'C:\Users\d_bo\Desktop\test-dita-ot-pdf\dita-ot-3.3.1\plugins\org.dita.pdf2.axf\xsl\fo\topic2fo_shell_axf.xsl': net.sf.saxon.s9api.SaxonApiException: Errors were reported during stylesheet compilation
    at org.dita.dost.module.XsltModule.execute(XsltModule.java:108)
    at org.dita.dost.ant.ExtensibleAntInvoker.execute(ExtensibleAntInvoker.java:182)
    at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:292)
    at sun.reflect.GeneratedMethodAccessor7.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:498)
    at org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:99)
    at org.apache.tools.ant.Task.perform(Task.java:350)
    at org.apache.tools.ant.Target.execute(Target.java:449)
    at org.apache.tools.ant.Target.performTasks(Target.java:470)
    at org.apache.tools.ant.Project.executeSortedTargets(Project.java:1388)
    at org.apache.tools.ant.helper.SingleCheckExecutor.executeTargets(SingleCheckExecutor.java:36)
    at org.apache.tools.ant.Project.executeTargets(Project.java:1251)
    at org.apache.tools.ant.taskdefs.Ant.execute(Ant.java:437)
    at org.apache.tools.ant.taskdefs.CallTarget.execute(CallTarget.java:105)
    at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:292)
    at sun.reflect.GeneratedMethodAccessor7.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:498)
    at org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:99)
    at org.apache.tools.ant.Task.perform(Task.java:350)
    at org.apache.tools.ant.Target.execute(Target.java:449)
    at org.apache.tools.ant.Target.performTasks(Target.java:470)
    at org.apache.tools.ant.Project.executeSortedTargets(Project.java:1388)
    at org.apache.tools.ant.helper.SingleCheckExecutor.executeTargets(SingleCheckExecutor.java:36)
    at org.apache.tools.ant.Project.executeTargets(Project.java:1251)
    at org.apache.tools.ant.taskdefs.Ant.execute(Ant.java:437)
    at org.apache.tools.ant.taskdefs.CallTarget.execute(CallTarget.java:105)
    at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:292)
    at sun.reflect.GeneratedMethodAccessor7.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:498)
    at org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:99)
    at org.apache.tools.ant.Task.perform(Task.java:350)
    at org.apache.tools.ant.Target.execute(Target.java:449)
    at org.apache.tools.ant.Target.performTasks(Target.java:470)
    at org.apache.tools.ant.Project.executeSortedTargets(Project.java:1388)
    at org.apache.tools.ant.helper.SingleCheckExecutor.executeTargets(SingleCheckExecutor.java:36)
    at org.apache.tools.ant.Project.executeTargets(Project.java:1251)
    at org.apache.tools.ant.taskdefs.Ant.execute(Ant.java:437)
    at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:292)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:498)
    at org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:99)
    at org.apache.tools.ant.Task.perform(Task.java:350)
    at org.apache.tools.ant.Target.execute(Target.java:449)
    at org.apache.tools.ant.Target.performTasks(Target.java:470)
    at org.apache.tools.ant.Project.executeSortedTargets(Project.java:1388)
    at org.apache.tools.ant.Project.executeTarget(Project.java:1361)
    at org.apache.tools.ant.helper.DefaultExecutor.executeTargets(DefaultExecutor.java:41)
    at org.apache.tools.ant.Project.executeTargets(Project.java:1251)
    at org.apache.tools.ant.Main.runBuild(Main.java:834)
    at org.apache.tools.ant.Main.startAnt(Main.java:223)
    at org.apache.tools.ant.launch.Launcher.run(Launcher.java:284)
    at org.apache.tools.ant.launch.Launcher.main(Launcher.java:101)
Caused by: javax.xml.transform.TransformerConfigurationException: net.sf.saxon.s9api.SaxonApiException: Errors were reported during stylesheet compilation
    at net.sf.saxon.jaxp.SaxonTransformerFactory.newTemplates(SaxonTransformerFactory.java:158)
    at org.dita.dost.module.XsltModule.execute(XsltModule.java:106)
    ... 56 more
Caused by: net.sf.saxon.s9api.SaxonApiException: Errors were reported during stylesheet compilation
    at net.sf.saxon.s9api.XsltCompiler.compile(XsltCompiler.java:742)
    at net.sf.saxon.jaxp.SaxonTransformerFactory.newTemplates(SaxonTransformerFactory.java:155)
    ... 57 more
Caused by: net.sf.saxon.trans.XPathException: Errors were reported during stylesheet compilation
    at net.sf.saxon.style.StylesheetModule.loadStylesheet(StylesheetModule.java:260)
    at net.sf.saxon.style.Compilation.compileSingletonPackage(Compilation.java:106)
    at net.sf.saxon.s9api.XsltCompiler.compile(XsltCompiler.java:739)
    ... 58 more

我仔细检查了所有内容，并且我的扩展功能已正确定义。所以我做了一些测试，显然我的 jar 从未添加到类路径中。我创建了一个简单的 ant 目标并再次启动：

    <target name="testJava">
      <java classname="com.infotel.ftd.MyTest">
      </java>
    </target>

这是我得到的：

     [java] Could not find com.infotel.ftd.MyTest. Make sure you have it in your classpath
     [java]     at org.apache.tools.ant.taskdefs.ExecuteJava.execute(ExecuteJava.java:141)
     [java]     at org.apache.tools.ant.taskdefs.Java.run(Java.java:861)
     [java]     at org.apache.tools.ant.taskdefs.Java.executeJava(Java.java:231)
     [java]     at org.apache.tools.ant.taskdefs.Java.executeJava(Java.java:135)
     [java]     at org.apache.tools.ant.taskdefs.Java.execute(Java.java:108)
     [java]     at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:292)
     [java]     at sun.reflect.GeneratedMethodAccessor7.invoke(Unknown Source)
     [java]     at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
     [java]     at java.lang.reflect.Method.invoke(Method.java:498)
     [java]     at org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:99)
     [java]     at org.apache.tools.ant.Task.perform(Task.java:350)
     [java]     at org.apache.tools.ant.Target.execute(Target.java:449)
     [java]     at org.apache.tools.ant.Target.performTasks(Target.java:470)
     [java]     at org.apache.tools.ant.Project.executeSortedTargets(Project.java:1388)
     [java]     at org.apache.tools.ant.helper.SingleCheckExecutor.executeTargets(SingleCheckExecutor.java:36)
     [java]     at org.apache.tools.ant.Project.executeTargets(Project.java:1251)
     [java]     at org.apache.tools.ant.taskdefs.Ant.execute(Ant.java:437)
     [java]     at org.apache.tools.ant.taskdefs.CallTarget.execute(CallTarget.java:105)
     [java]     at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:292)
     [java]     at sun.reflect.GeneratedMethodAccessor7.invoke(Unknown Source)
     [java]     at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
     [java]     at java.lang.reflect.Method.invoke(Method.java:498)
     [java]     at org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:99)
     [java]     at org.apache.tools.ant.Task.perform(Task.java:350)
     [java]     at org.apache.tools.ant.Target.execute(Target.java:449)
     [java]     at org.apache.tools.ant.Target.performTasks(Target.java:470)
     [java]     at org.apache.tools.ant.Project.executeSortedTargets(Project.java:1388)
     [java]     at org.apache.tools.ant.helper.SingleCheckExecutor.executeTargets(SingleCheckExecutor.java:36)
     [java]     at org.apache.tools.ant.Project.executeTargets(Project.java:1251)
     [java]     at org.apache.tools.ant.taskdefs.Ant.execute(Ant.java:437)
     [java]     at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:292)
     [java]     at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
     [java]     at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
     [java]     at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
     [java]     at java.lang.reflect.Method.invoke(Method.java:498)
     [java]     at org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:99)
     [java]     at org.apache.tools.ant.Task.perform(Task.java:350)
     [java]     at org.apache.tools.ant.Target.execute(Target.java:449)
     [java]     at org.apache.tools.ant.Target.performTasks(Target.java:470)
     [java]     at org.apache.tools.ant.Project.executeSortedTargets(Project.java:1388)
     [java]     at org.apache.tools.ant.Project.executeTarget(Project.java:1361)
     [java]     at org.apache.tools.ant.helper.DefaultExecutor.executeTargets(DefaultExecutor.java:41)
     [java]     at org.apache.tools.ant.Project.executeTargets(Project.java:1251)
     [java]     at org.apache.tools.ant.Main.runBuild(Main.java:834)
     [java]     at org.apache.tools.ant.Main.startAnt(Main.java:223)
     [java]     at org.apache.tools.ant.launch.Launcher.run(Launcher.java:284)
     [java]     at org.apache.tools.ant.launch.Launcher.main(Launcher.java:101)
     [java] Java Result: -1

如何调试dita OT 以查看我的配置有什么问题？

4

1 回答 1

2

我终于确定了我的 DITA OT 配置出了什么问题。

我正在使用ant 构建脚本来运行 DITA OT，并且在执行此操作时，插件 JAR 不会自动添加到类路径中。

我切换到使用 DITA OT 命令行。现在，ant 脚本可以看到我的 JAR，并且可以从 XSLT 访问我的扩展函数。

另外，如果别人有这样的classpath问题，也可以查看文件[DITA-OT]/config/env.bat（对于lunix用户是env.sh）。安装提供自己的 JAR 库的插件后，JAR 文件应存在于此文件中：

set "CLASSPATH=%CLASSPATH%;%DITA_HOME%\plugins\org.dita.pdf2\lib\fo.jar"
set "CLASSPATH=%CLASSPATH%;%DITA_HOME%\plugins\com.infotel.orlando.pdf\.\xslt-extension.jar"
set "CLASSPATH=%CLASSPATH%;%DITA_HOME%\plugins\org.dita.eclipsehelp\lib\eclipsehelp.jar"
...
于 2019-11-15T10:36:30.060 回答