作者:顺大顺麻麻1009_388 | 来源:互联网 | 2023-10-10 19:17
测试 单例通过反序列化出来就不再是单例,反序列化时会反射创建一个新的对象出来
public class SerializableSingle {
public static void main(String[] args) throws Exception {
ObjectOutputStream obc = new ObjectOutputStream(new FileOutputStream(new File("d:/single.txt")));
obc.writeObject(Single003.getInstance());
ObjectInputStream ois = new ObjectInputStream(new FileInputStream(new File("d:/single.txt")));
Single003 readObject = (Single003)ois.readObject();
System.out.println(readObject == Single003.getInstance());//false
}
}
解决就是在单例中定义readResolve()方法