@Youngpine:

“反射破坏单例模式的解决方案”这部分测试代码改成如下，依旧没法解决：[code=java]

public static void main(String[] args) throws Exception {

Class singletonClass = Singleton.class;

Constructor constructor = singletonClass.getDeclaredConstructor();

constructor.setAccessible(true);

Field flag = singletonClass.getDeclaredField("flag");

flag.setAccessible(true);

Singleton singleton1 = constructor.newInstance();

flag.set(null, false);

Singleton singleton2 = constructor.newInstance();

System.out.println(singleton1 == singleton2);

}

[/code]