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This article mainly introduces "how to solve the problem of net.sourceforge.tess4j.TesseractException error in java". In daily operation, I believe many people have doubts about how to solve the problem of net.sourceforge.tess4j.TesseractException error in java. The editor consulted all kinds of materials and sorted out simple and easy-to-use methods of operation. I hope it will be helpful for you to answer the doubt of "how to solve the problem of net.sourceforge.tess4j.TesseractException error in java". Next, please follow the editor to study!

ERROR net.sourceforge.tess4j.Tesseract-nulljava.lang.NullPointerException: null at net.sourceforge.tess4j.Tesseract.dispose (Tesseract.java:826) at net.sourceforge.tess4j.Tesseract.doOCR (Tesseract.java:239) at net.sourceforge.tess4j.Tesseract.doOCR (Tesseract.java:194) at com.xx.xxx.common.utils.Tess4jUtils.getImgContent (Tess4jUtils.java:114) at com.xx.xxx.common.utils.Tess4jUtils. Main (Tess4jUtils.java:123) 10 ERROR com.xx.xxx.common.utils.Tess4jUtils 24.637 [main] ERROR com.xx.xxx.common.utils.Tess4jUtils-Tess4jUtils getImgContent exception: net.sourceforge.tess4j.TesseractException: java.lang.NullPointerException at net.sourceforge.tess4j.Tesseract.doOCR (Tesseract.java:245) at net.sourceforge.tess4j.Tesseract.doOCR (Tesseract.java:194) at com.xx.xxx.common.utils.Tess4jUtils.getImgContent (Tess4jUtils.java:114) at com.xx.xxx.common.utils .Tess4jUtils.main (Tess4jUtils.java:123) Caused by: java.lang.NullPointerException: null at net.sourceforge.tess4j.Tesseract.dispose (Tesseract.java:826) at net.sourceforge.tess4j.Tesseract.doOCR (Tesseract.java:239)... 3 common frames omitted

Hope that students who encounter an error TesseractException null pointer can see my article first. There are a large number of online search solutions, and the more reliable ones are to say that some Windows dll files are missing, and then need to download xxx.dll,xx.dll and so on.

This paragraph records the description of the error I encountered (if you are not interested, you can directly see the following solution): the code written by Eclipse can run normally and run as a jar package, the same code of my colleague's computer uses Idea Intelij to run the error, and the jar package also reports the error. Guess that Eclipse may be relatively integrated, for example, you can install development C and other plug-ins, there is an integrated part of the Windows development environment.

Here are the formal solutions:

1. Visit sourceforge's Tess4j home page: http://tess4j.sourceforge.net/

If you have downloaded the tess4j dependency package, you can also take a closer look at the readme file in the download package, which also provides an official address. Then, if you are not in a hurry, you can slowly read all the menus of the official documents, which is much more useful than the messy documents searched on the Internet.

two。 In the home menu, select the Usage menu, which has a link to Tutorial: Development with Tess4J in NetBeans, Eclipse, and Command-line

At this point, the study on "how to solve the problem of net.sourceforge.tess4j.TesseractException error in java" is over. I hope to be able to solve your doubts. The collocation of theory and practice can better help you learn, go and try it! If you want to continue to learn more related knowledge, please continue to follow the website, the editor will continue to work hard to bring you more practical articles!

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