1 //: SerialCtl.java
2 // 下面这个Demo演示如何使用Serializable和transient关键字来动态管理成员属性
3 // 主要思想是添加（不是复写与实现）write与read的方法（注意方法签名）
4
5 package c10;
6
7 import java.io.ByteArrayInputStream;
8 import java.io.ByteArrayOutputStream;
9 import java.io.IOException;
10 import java.io.ObjectInputStream;
11 import java.io.ObjectOutputStream;
12 import java.io.Serializable;
13
14 /**
15 * @time: 上午10:01:53
16 * @date: 2017年5月11日
17 * @auther: skyfffire
18 * @version: v0.1
19 */
20 public class SerialCtl implements Serializable {
21 private static final long serialVersionUID = -7532371062424412783L;
22
23 String a = null;
24 transient String b = null;
25
26 public SerialCtl(String aa, String bb) {
27 a = "Not Transient: " + aa;
28 b = "Transient: " + bb;
29 }
30
31 public String toString() {
32 return a + "\n" + b;
33 }
34
35 private void writeObject(ObjectOutputStream stream)
36 throws IOException {
37 stream.defaultWriteObject();
38 stream.writeObject(b);
39 }
40
41 private void readObject(ObjectInputStream stream)
42 throws IOException, ClassNotFoundException {
43 stream.defaultReadObject();
44 b = (String) stream.readObject();
45 }
46
47 public static void main(String[] args) {
48 SerialCtl sc = new SerialCtl("Test1", "Test2");
49
50 System.out.println("Before:\n" + sc);
51
52 ByteArrayOutputStream buf =
53 new ByteArrayOutputStream();
54
55 try {
56 ObjectOutputStream o = new ObjectOutputStream(buf);
57 o.writeObject(sc);
58 o.close();
59
60 ObjectInputStream in =
61 new ObjectInputStream(
62 new ByteArrayInputStream(buf.toByteArray()));
63 sc = (SerialCtl) in.readObject();
64 in.close();
65 System.out.println(sc);
66 } catch (Exception e) {
67 e.printStackTrace();
68 }
69 }
70 }
71
72 ///:~
