尝试注入module-info.java时找不到模块

问题描述

我有一个使用Apache PDFBox的JavaFX项目。我想使用JLink为其构建JRE，但由于PDFBox是自动模块，所以无法使用。因此，我正在尝试在其中注入一个模块信息文件。

我使用jdeps生成了这个模块信息文件：

module org.apache.pdfbox {
    requires org.bouncycastle.pkix;
    requires org.bouncycastle.provider;

    requires transitive commons.logging;
    requires transitive java.desktop;
    requires transitive java.xml;
    requires transitive org.apache.fontbox;

    exports org.apache.pdfbox.contentstream;
    exports org.apache.pdfbox.contentstream.operator;
    exports org.apache.pdfbox.contentstream.operator.color;
    exports org.apache.pdfbox.contentstream.operator.graphics;
    exports org.apache.pdfbox.contentstream.operator.markedcontent;
    exports org.apache.pdfbox.contentstream.operator.state;
    exports org.apache.pdfbox.contentstream.operator.text;
    exports org.apache.pdfbox.cos;
    exports org.apache.pdfbox.filter;
    exports org.apache.pdfbox.io;
    exports org.apache.pdfbox.multipdf;
    exports org.apache.pdfbox.pdfparser;
    exports org.apache.pdfbox.pdfwriter;
    exports org.apache.pdfbox.pdmodel;
    exports org.apache.pdfbox.pdmodel.common;
    exports org.apache.pdfbox.pdmodel.common.filespecification;
    exports org.apache.pdfbox.pdmodel.common.function;
    exports org.apache.pdfbox.pdmodel.common.function.type4;
    exports org.apache.pdfbox.pdmodel.documentinterchange.logicalstructure;
    exports org.apache.pdfbox.pdmodel.documentinterchange.markedcontent;
    exports org.apache.pdfbox.pdmodel.documentinterchange.prepress;
    exports org.apache.pdfbox.pdmodel.documentinterchange.taggedpdf;
    exports org.apache.pdfbox.pdmodel.encryption;
    exports org.apache.pdfbox.pdmodel.fdf;
    exports org.apache.pdfbox.pdmodel.font;
    exports org.apache.pdfbox.pdmodel.font.encoding;
    exports org.apache.pdfbox.pdmodel.graphics;
    exports org.apache.pdfbox.pdmodel.graphics.blend;
    exports org.apache.pdfbox.pdmodel.graphics.color;
    exports org.apache.pdfbox.pdmodel.graphics.form;
    exports org.apache.pdfbox.pdmodel.graphics.image;
    exports org.apache.pdfbox.pdmodel.graphics.optionalcontent;
    exports org.apache.pdfbox.pdmodel.graphics.pattern;
    exports org.apache.pdfbox.pdmodel.graphics.shading;
    exports org.apache.pdfbox.pdmodel.graphics.state;
    exports org.apache.pdfbox.pdmodel.interactive.action;
    exports org.apache.pdfbox.pdmodel.interactive.annotation;
    exports org.apache.pdfbox.pdmodel.interactive.annotation.handlers;
    exports org.apache.pdfbox.pdmodel.interactive.annotation.layout;
    exports org.apache.pdfbox.pdmodel.interactive.digitalsignature;
    exports org.apache.pdfbox.pdmodel.interactive.digitalsignature.visible;
    exports org.apache.pdfbox.pdmodel.interactive.documentnavigation.destination;
    exports org.apache.pdfbox.pdmodel.interactive.documentnavigation.outline;
    exports org.apache.pdfbox.pdmodel.interactive.form;
    exports org.apache.pdfbox.pdmodel.interactive.measurement;
    exports org.apache.pdfbox.pdmodel.interactive.pagenavigation;
    exports org.apache.pdfbox.pdmodel.interactive.viewerpreferences;
    exports org.apache.pdfbox.printing;
    exports org.apache.pdfbox.rendering;
    exports org.apache.pdfbox.text;
    exports org.apache.pdfbox.util;
    exports org.apache.pdfbox.util.filetypedetector;
}

在罐子的文件夹中，我运行了： javac --patch-module org.apache.pdfbox=pdfbox-2.0.20.jar module-info.java

但是后来我得到了

pdfbox/module-info.java:2: error: module not found: org.bouncycastle.pkix
    requires org.bouncycastle.pkix;
                             ^
pdfbox/module-info.java:3: error: module not found: org.bouncycastle.provider
    requires org.bouncycastle.provider;
                             ^
pdfbox/module-info.java:5: error: module not found: commons.logging
    requires transitive commons.logging;
                               ^
pdfbox/module-info.java:8: error: module not found: org.apache.fontbox
    requires transitive org.apache.fontbox;
                                  ^
4 errors

我该如何解决？有更好的解决方法吗？预先感谢。

项目：https://github.com/ajsaraujo/mre-automodule

解决方法

由于自动模块问题，您不能直接使用jlink。但是您可以遵循本教程https://github.com/dlemmermann/JPackageScriptFX，该教程也使用jlink，但仅用于创建专用的运行时而无需模块化您的项目。我也在项目中使用PDFBox，所以我知道它可以工作。免责声明：我有偏见，因为我是上述教程的合著者：-）

,

我找到了有关逐步制作 module-info.class 的教程。 为 org.apache.commons.math3 创建 module-info.class 对我很有用。 https://www.youtube.com/watch?v=bO6f3U4i0A0&t=293

对我来说，“找不到模块”问题没有出现。