问题描述
我在解析图像时使用tess4j 2.3.0版。当我通过Eclipse将应用程序作为Java应用程序运行时,它可以正常工作。
但是,一旦我运行可执行的Jar文件,就会发生NullPointerException。运行可执行的Jar文件和Eclipse Java应用程序时使用的tessdata指向同一位置。两种环境使用的输入文件也完全相同。
详细的堆栈跟踪如下:
2020-10-13 19:16:28 ERROR Tesseract:276 - null
java.lang.NullPointerException: null
at net.sourceforge.tess4j.util.ImageIOHelper.convertimageData(ImageIOHelper.java:304) ~[MyApp-1.0-jar-with-dependencies.jar:?]
at net.sourceforge.tess4j.util.ImageIOHelper.getimageByteBuffer(ImageIOHelper.java:294) ~[MyApp-1.0-jar-with-dependencies.jar:?]
at net.sourceforge.tess4j.Tesseract.setimage(Tesseract.java:456) ~[MyApp-1.0-jar-with-dependencies.jar:?]
at net.sourceforge.tess4j.Tesseract.doOCR(Tesseract.java:320) ~[MyApp-1.0-jar-with-dependencies.jar:?]
at net.sourceforge.tess4j.Tesseract.doOCR(Tesseract.java:293) ~[MyApp-1.0-jar-with-dependencies.jar:?]
at net.sourceforge.tess4j.Tesseract.doOCR(Tesseract.java:274) [MyApp-1.0-jar-with-dependencies.jar:?]
at net.sourceforge.tess4j.Tesseract.doOCR(Tesseract.java:258) [MyApp-1.0-jar-with-dependencies.jar:?]
at com.mycom.myproj.tools.myapp.utils.Utils.doTessOCR(Utils.java:183) [MyApp-1.0-jar-with-dependencies.jar:?]
at com.mycom.myproj.tools.myapp.counters.MsExcelCounter.extractTextFromImages(MsExcelCounter.java:89) [MyApp-1.0-jar-with-dependencies.jar:?]
at com.mycom.myproj.tools.myapp.counters.WordCounter.wordCount(WordCounter.java:48) [MyApp-1.0-jar-with-dependencies.jar:?]
at com.mycom.myproj.tools.myapp.gui.ProgressBarWin$1.run(ProgressBarWin.java:165) [MyApp-1.0-jar-with-dependencies.jar:?]
at java.lang.Thread.run(UnkNown Source) [?:1.8.0_261]
有什么想法吗?
解决方法
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