[英]How to resolve java.lang.NoClassDefFoundError in the following code?
我是NLP和JAVA的新手。 最近,我开始进行语言检测,并且从如何检测用户输入的文本的语言中获得了一个代码? 。 我正在使用NetBeans 8.2,并在其中复制了以下代码:
package landslip_langdetect;
import java.util.ArrayList;
import com.cybozu.labs.langdetect.Detector;
import com.cybozu.labs.langdetect.DetectorFactory;
import com.cybozu.labs.langdetect.LangDetectException;
import com.cybozu.labs.langdetect.Language;
public class LanguageCodeDetection {
public void init(String profileDirectory) throws LangDetectException {
DetectorFactory.loadProfile(profileDirectory);
}
public String detect(String text) throws LangDetectException {
Detector detector = DetectorFactory.create();
detector.append(text);
return detector.detect();
}
public ArrayList<Language> detectLangs(String text) throws LangDetectException {
Detector detector = DetectorFactory.create();
detector.append(text);
return detector.getProbabilities();
}
public static void main(String args[]) {
try {
LanguageCodeDetection ld = new LanguageCodeDetection();
String profileDirectory = "C:\\Users\\user\\Documents\\NetBeansProjects\\LangDetect\\profiles\\";
ld.init(profileDirectory);
String text = "Кремль россий";
System.out.println(ld.detectLangs(text));
System.out.println(ld.detect(text));
} catch (LangDetectException e) {
}
}
}
“个人资料”文件夹,我只是从github( https://github.com/shuyo/language-detection )下载,并仅在“ profileDirectory”中给出了路径
我得到的错误为:
Exception in thread "main" java.lang.NoClassDefFoundError: net/arnx/jsonic/JSONException
at shyjo_langDetect.LanguageCodeDetection_1.init(LanguageCodeDetection_1.java:21)
at shyjo_langDetect.LanguageCodeDetection_1.main(LanguageCodeDetection_1.java:40)
Caused by: java.lang.ClassNotFoundException: net.arnx.jsonic.JSONException
at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
... 2 more
C:\Users\geethu\AppData\Local\NetBeans\Cache\8.2\executor-snippets\run.xml:53: Java returned: 1
BUILD FAILED (total time: 0 seconds)
我也将所需的jar文件添加到了库中( http://www.java2s.com/Code/Jar/l/Downloadlangdetectjar.htm )由于我是JAVA的新手,所以我不明白为什么会出现此错误。 谁能帮助我解决错误并使代码正常工作?
请将jsonic-1.2.0.jar和langdetect.jar添加到NetBeans项目的Build路径中。 您可以在先前提供的GitHub URL的lib目录下找到这两个Jar。
发布更改后,您应该能够获得所需的输出:
[ru:0.9999987658571312]
ru
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