Windows中的Tess4j问题：java.lang.UnsatisfiedLinkError：在instance.doOCR（imageFile）中找不到指定的模块 [英] Tess4j Issue in Windows: java.lang.UnsatisfiedLinkError: The specified module could not be found in instance.doOCR(imageFile)

问题描述

经过2天的谷歌搜索后，我仍无法找到Tess4j 3.0版本问题的解决方案：java.lang.UnsatisfiedLinkError：找不到指定的模块。

After 2 days of googling I am still unable to find the solution of my issue with Tess4j version 3.0: java.lang.UnsatisfiedLinkError: The specified module could not be found.

我在Windows 10 x64上编写服务器端Spring启动应用程序。我使用本教程 http://tess4j.sourceforge.net/tutorial/
I在tess4j项目的源代码中生成 ant test ，这个命令在我的电脑上运行正常。我还安装了VS2012的Visual C ++ Redistributable和VS2013的Visual C ++ Redistributable。
但我错过了我的电脑中的dll，libtesseract304.dll取决于：

I write server side Spring boot app on my Windows 10 x64. I used this tutorial http://tess4j.sourceforge.net/tutorial/ I make ant test in tess4j project's source and this command works ok in my PC. I also have Visual C++ Redistributable for VS2012 and Visual C++ Redistributable for VS2013 installed. But I have missed dlls in my PC, libtesseract304.dll depends on:

这可能是问题的原因吗？但是怎么可能，Tess4J-3.0-src项目在我的电脑上运行正常？

Can it be the reason of problem? But how it is possible, that Tess4J-3.0-src project works ok in my PC?

我的完整堆栈跟踪：

java.lang.UnsatisfiedLinkError: The specified module could not be found.

    at com.sun.jna.Native.open(Native Method) ~[jna.jar:4.2.1 (b0)]
    at com.sun.jna.NativeLibrary.loadLibrary(NativeLibrary.java:263) ~[jna.jar:4.2.1 (b0)]
    at com.sun.jna.NativeLibrary.getInstance(NativeLibrary.java:403) ~[jna.jar:4.2.1 (b0)]
    at com.sun.jna.Library$Handler.<init>(Library.java:147) ~[jna.jar:4.2.1 (b0)]
    at com.sun.jna.Native.loadLibrary(Native.java:502) ~[jna.jar:4.2.1 (b0)]
    at com.sun.jna.Native.loadLibrary(Native.java:481) ~[jna.jar:4.2.1 (b0)]
    at net.sourceforge.tess4j.util.LoadLibs.getTessAPIInstance(Unknown Source) ~[tess4j-3.0.jar:na]
    at net.sourceforge.tess4j.TessAPI.<clinit>(Unknown Source) ~[tess4j-3.0.jar:na]
    at net.sourceforge.tess4j.Tesseract.init(Unknown Source) ~[tess4j-3.0.jar:na]
    at net.sourceforge.tess4j.Tesseract.doOCR(Unknown Source) ~[tess4j-3.0.jar:na]
    at net.sourceforge.tess4j.Tesseract.doOCR(Unknown Source) ~[tess4j-3.0.jar:na]
    at net.sourceforge.tess4j.Tesseract.doOCR(Unknown Source) ~[tess4j-3.0.jar:na]
    at ocr.OCRController.handleFileUpload(OCRController.java:109) ~[classes/:na]
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_51]
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_51]
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_51]
    at java.lang.reflect.Method.invoke(Method.java:497) ~[na:1.8.0_51]

我的代码：

ITesseract instance = new Tesseract(); // JNA Interface Mapping

instance.setDatapath(new File(datapath).getPath()); 
instance.setLanguage("eng");      
try {
    String result = instance.doOCR(imageFile); //error here
} catch (TesseractException e) {
    System.err.println(e.getMessage());
}

maven：

<dependency>
    <groupId>jai_imageio</groupId>
    <artifactId>com.jai_imageio</artifactId>
    <version>3.0</version>
    <scope>system</scope>
    <systemPath>${project.basedir}/lib/jai_imageio.jar</systemPath>
</dependency>
<dependency>
    <groupId>commons-io-2.4</groupId>
    <artifactId>com.commons-io-2.4</artifactId>
    <version>3.0</version>
    <scope>system</scope>
    <systemPath>${project.basedir}/lib/commons-io-2.4.jar</systemPath>
</dependency>
<dependency>
    <groupId>jna</groupId>
    <artifactId>com.jna</artifactId>
    <version>3.0</version>
    <scope>system</scope>
    <systemPath>${project.basedir}/lib/jna.jar</systemPath>
</dependency>
<dependency>
    <groupId>tess4j-3.0</groupId>
    <artifactId>com.tess4j-3.0</artifactId>
    <version>3.0</version>
    <scope>system</scope>
    <systemPath>${project.basedir}/lib/tess4j-3.0.jar</systemPath>
</dependency>

我还尝试以强制方式加载库：

I also tried to load libs in force way:

Runtime.getRuntime().loadLibrary("lib/win32-x86-64/gsdll64");
Runtime.getRuntime().loadLibrary("lib/win32-x86-64/libtesseract304");

但没有成功：

There was an unexpected error (type=Internal Server Error, status=500).
C:\Users\Iuliia\IdeaProjects\ENumbersBackend\lib\win32-x86-64\libtesseract304.dll: Can't find dependent libraries

感谢您的帮助！

推荐答案

该问题与Windows 10无关。

The problem is not connected with Windows 10.

我已修复错误并添加

<dependency>
    <groupId>net.sourceforge.tess4j</groupId>
    <artifactId>tess4j</artifactId>
    <version>3.0.0</version>
</dependency>

而不是所有以前的maven依赖项。

instead all previous maven dependencies.

这篇关于Windows中的Tess4j问题：java.lang.UnsatisfiedLinkError：在instance.doOCR（imageFile）中找不到指定的模块的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！