1. public class Person implements Serializable{
   
2. private static final long serialVersionUID = 1L;
   
3. private static final Person p = new Person("jzk",1);;
   
4. private String name;
   
5. private int age;
   
6. 
   
7. private Person(String name, int age) {
   
8. this.name = name;
   
9. this.age = age;
   
10. }
    
11. public static Person getInstance(){
    
12. return p;
    
13. }
    
14. public String getName() {return name;}
    
15. public int getAge() { return age;}
    
16. 
    
17. private Object writeReplace()throws ObjectStreamException{
    
18. return new Dog("旺财"); //此处将序列化的对像用Dog来替换 }
    
19. 
    
20. private Object readResolve()throws ObjectStreamException{
    
21. return new Person("jkk",2); //此处读取的时候用new Person("jkk",2)来替换读取的对像值
    
22. }
    
23. }
    
24. 
    
25. 
    
26. 
    
27. 
    
28. 
    
29. public class SerializeOperate {
    
30. public static void main(String[] args){
    
31. 
    
32. ObjectOutputStream oos = null;
    
33. ObjectInputStream ois = null;
    
34. 
    
35. try {
    
36. 
    
37. oos = new ObjectOutputStream(new FileOutputStream("E:\\serialize.txt"));
    
38. ois = new ObjectInputStream(new FileInputStream("E:\\serialize.txt"));
    
39. oos.writeObject(Person.getInstance());
    
40. //根据上面的注释的理解,,,,,,,,,,,,这个地方为什么会报ClassCastException?????????????????////
    
41. System.out.println(Person.getInstance()==(Person)ois.readObject());
    
42. 
    
43. } catch (IOException e) {
    
44. e.printStackTrace();
    
45. throw new RuntimeException("序列化异常!");
    
46. } catch (ClassNotFoundException e) {
    
47. e.printStackTrace();
    
48. throw new RuntimeException("反序列化异常!");
    
49. }finally{
    
50. try {
    
51. if(oos != null)
    
52. oos.close();
    
53. }catch (IOException e) {
    
54. throw new RuntimeException("关闭列化流异常!");
    
55. }
    
56. try {
    
57. if(ois != null)
    
58. ois.close();
    
59. }catch (IOException e) {
    
60. throw new RuntimeException("关闭反序列化流异常!");
    
61. }
    
62. }
    
63. }
    
64. }
    

复制代码

你的这个代码有问题吧，其中的Dog是哪里来的啊，请写全代码，把问题写清楚，如果没问题了，请将问题分类改为“已解决”，谢谢