Question

我有一个CodenameOne项目，大部分已完成，我需要将桌面版本与PDFBox集成。我正在尝试打开文档并将页面呈现给我在应用程序中显示的图像。

我收到以下错误：

java.lang.NoClassDefFoundError: Could not initialize class org.apache.pdfbox.pdmodel.font.PDTrueTypeFont
    at org.apache.pdfbox.pdmodel.font.PDFontFactory.createFont(PDFontFactory.java:100)
    at org.apache.pdfbox.pdmodel.PDResources.getFonts(PDResources.java:213)
    at org.apache.pdfbox.util.PDFStreamEngine.getFonts(PDFStreamEngine.java:607)
    at org.apache.pdfbox.util.operator.SetTextFont.process(SetTextFont.java:59)
    at org.apache.pdfbox.util.PDFStreamEngine.processOperator(PDFStreamEngine.java:557)
    at org.apache.pdfbox.util.PDFStreamEngine.processSubStream(PDFStreamEngine.java:268)
    at org.apache.pdfbox.util.PDFStreamEngine.processSubStream(PDFStreamEngine.java:235)
    at org.apache.pdfbox.util.PDFStreamEngine.processStream(PDFStreamEngine.java:215)
    at org.apache.pdfbox.pdfviewer.PageDrawer.drawPage(PageDrawer.java:139)
    at org.apache.pdfbox.pdmodel.PDPage.convertToImage(PDPage.java:801)
    at co.za.gingetsuryuu.pdfreader.PDFInterfaceImpl$1.run(PDFInterfaceImpl.java:69)
    at java.lang.Thread.run(Thread.java:745)
java.lang.NoClassDefFoundError: Could not initialize class org.apache.pdfbox.pdmodel.font.PDTrueTypeFont
    at org.apache.pdfbox.pdmodel.font.PDFontFactory.createFont(PDFontFactory.java:100)
    at org.apache.pdfbox.pdmodel.PDResources.getFonts(PDResources.java:213)
    at org.apache.pdfbox.util.PDFStreamEngine.getFonts(PDFStreamEngine.java:607)
    at org.apache.pdfbox.util.operator.SetTextFont.process(SetTextFont.java:59)
    at org.apache.pdfbox.util.PDFStreamEngine.processOperator(PDFStreamEngine.java:557)
    at org.apache.pdfbox.util.PDFStreamEngine.processSubStream(PDFStreamEngine.java:268)
    at org.apache.pdfbox.util.PDFStreamEngine.processSubStream(PDFStreamEngine.java:235)
    at org.apache.pdfbox.util.PDFStreamEngine.processStream(PDFStreamEngine.java:215)
    at org.apache.pdfbox.pdfviewer.PageDrawer.drawPage(PageDrawer.java:139)
    at org.apache.pdfbox.pdmodel.PDPage.convertToImage(PDPage.java:801)
    at co.za.gingetsuryuu.pdfreader.PDFInterfaceImpl$1.run(PDFInterfaceImpl.java:69)
    at java.lang.Thread.run(Thread.java:745)
java.lang.NoClassDefFoundError: Could not initialize class org.apache.pdfbox.pdmodel.font.PDTrueTypeFont
    at org.apache.pdfbox.pdmodel.font.PDFontFactory.createFont(PDFontFactory.java:100)
    at org.apache.pdfbox.pdmodel.PDResources.getFonts(PDResources.java:213)
    at org.apache.pdfbox.util.PDFStreamEngine.getFonts(PDFStreamEngine.java:607)
    at org.apache.pdfbox.util.operator.SetTextFont.process(SetTextFont.java:59)
    at org.apache.pdfbox.util.PDFStreamEngine.processOperator(PDFStreamEngine.java:557)
    at org.apache.pdfbox.util.PDFStreamEngine.processSubStream(PDFStreamEngine.java:268)
    at org.apache.pdfbox.util.PDFStreamEngine.processSubStream(PDFStreamEngine.java:235)
    at org.apache.pdfbox.util.PDFStreamEngine.processStream(PDFStreamEngine.java:215)
    at org.apache.pdfbox.pdfviewer.PageDrawer.drawPage(PageDrawer.java:139)
    at org.apache.pdfbox.pdmodel.PDPage.convertToImage(PDPage.java:801)
    at co.za.gingetsuryuu.pdfreader.PDFInterfaceImpl$1.run(PDFInterfaceImpl.java:69)
    at java.lang.Thread.run(Thread.java:745)

我完全失去了。我已经检查了包含的库，它设法渲染一个或两个页面，但不多于此。我甚至检查过这个功能确实存在，而且确实存在。

Answer 1

问题似乎与Codename One执行构建过程的方式有关。通过将jar文件包含在结果项目中并使它们在jar加载顺序中比app.jar文件加载更高，问题就解决了。

Answer 2

您是否将PDF框API的jar放在native / javase文件夹下？如果不是，罐子将不会被发送到构建服务器，并且不会被打包作为应用程序的一部分。

Apache PDFBox和CodenameOne桌面应用程序

2 个答案: