java.lang.ClassNotFoundException:找不到类"com.life.Life"； [英] java.lang.ClassNotFoundException: Didn't find a class "com.life.Life"

问题描述

我正试图通过 DexClassLoader 从 jar文件加载类:

I was tring to load a class from a jar file through DexClassLoader:

public class AndroidClassLoader implements ClassLoader {

    private Class class1;

    @Override
    public Class execute(File file, String packge) {
         class1 = null;
         try{
             DexClassLoader loader = new DexClassLoader(file.toURI().toURL().toString(), FXActivity.getInstance().getDir("outdex", 0).getAbsolutePath(), null, FXActivity.getInstance().getClassLoader());
             class1 = loader.loadClass(packge);
         }catch(Exception e){
             e.printStackTrace();
         }
         return class1;
     }
}

运行上述代码后，将引发错误:

After running the above code, an error will be thrown:

 java.lang.ClassNotFoundException: Didn't find a class "com.life.Life"
 of Path: DexPathList [[zip file "/storage/emulated/0/Life.jar"],
 nativeLibraryDirectories=[/vendor/lib, /system/lib]]

jar文件的名称为 Life.jar ，其内容如下:

The name of the jar file was Life.jar and here's its content:

package com.life;

public class Life
{
   public String getMessage()
   {
     return "Life is Beautiful!";
   }
}

关于如何解决此问题的任何想法?

推荐答案

您的程序包值应为"com.life.Life"

Your package value should be "com.life.Life"

即，class1 = loader.loadClass("com.life.Life");您可以尝试一下，让我知道它对您有用吗

ie., class1 = loader.loadClass("com.life.Life"); can you try this and let me know its that working for you

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