java.lang.ClassNotFoundException : Didn't find a class "com.life.Life"

Question

我试图通过 DexClassLoader 从 jar 文件加载类:

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，会抛出错误:

 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 文件的名称是 Life.jar，其内容如下:

package com.life;

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

知道如何解决这个问题吗？

Answer 1

您的包裹值(value)应为“com.life.Life”

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