采用Java Socket网络传输的序列化机制，将对象“压扁”成二进制字节，将二进制字节在网络中传输;
自定义协议，将对象用字符串描述出来，将字符串用二进制表示，在网络中传输，在另外一边用相反的策略解析这个字符串，重新构造业务对象，这个方法能够在异构平台中进行传输而不变形，但是需要额外的编写“压扁”和“充气”的代码;
我们这里用第一种方法：
1.package stream.demo;
2.import java.io.ByteArrayInputStream;
3.import java.io.ByteArrayOutputStream;
4.import java.io.File;
5.import java.io.FileInputStream;
6.import java.io.FileOutputStream;
7.import java.io.IOException;
8.import java.io.InputStream;
9.import java.io.ObjectInputStream;
10.import java.io.ObjectOutputStream;
11.import java.io.OutputStream;
12.import java.util.Date;
13.public class Persistence {
14.public static void main(String[] args) {
15.byte[] bs = Persistence.toBytes();
16.//在网络中进行传输
17.Persistence.getBytes(bs);
18.}
19.public static byte[] toBytes() {
20.Person p = new Person();
21.p.setName("corey");
22.p.setTall(171);
23.p.setBirthday(new Date());
24.p.setAddress(new Address("yiyang", "ziyang"));
25.ByteArrayOutputStream out = new
ByteArrayOutputStream();
26.try {
27.ObjectOutputStream oout = new ObjectOutputStream(out);
28.oout.writeObject(p);
29.} catch (IOException e) {
30.// TODO Auto-generated catch block
31.e.printStackTrace();
32.}
33.return out.toByteArray();
34.}
35.public static void getBytes(byte[] bs) {
36.try {
37.ByteArrayInputStream byteIn = new
ByteArrayInputStream(bs);
38.ObjectInputStream in = new ObjectInputStream(byteIn);
39.Person p = (Person) in.readObject();
40.System.out.println(p.getName());
41.System.out.println(p.getTall());
42.System.out.println(p.getBirthday());
43.System.out.println(p.getAddress().getCity());
44.System.out.print(p.getAddress().getStreet());
45.} catch (Exception e) {
46.// TODO Auto-generated catch block
47.e.printStackTrace();
48.}
49.}
50.}
其中服务端代码片段为：
51.in = this.getRequestSocket().getInputStream();
52.out = this.getRequestSocket().getOutputStream();
53.byte[] bs = Persistence.toBytes();
54.System.out.println("发送数字长度："+bs.length);
55.out.write(bs);
56.this.getRequestSocket().close();
57.客户端代码片段为：
58.InputStream in = request.getInputStream();
59.byte[] bin = new byte[200];
60.int length = 0;
61.while ((length = in.read(bin)) != -1) {
62.System.out.println("length:" + length);
63.Persistence.getBytes(bin);
64.}
