龙盟编程博客 | 无障碍搜索 | 云盘搜索神器
快速搜索
主页 > 软件开发 > JAVA开发 >

Java中基本数据类型与流(2)

时间:2009-12-23 15:42来源:未知 作者:admin 点击:
分享到:
package com.j2medev.mingjava; import java.io.*; public class TestDataIO { public static void main(String[] args) throws IOException { Account account = new Account("mingjava","eric.zhan@263.net",25,tr

  package com.j2medev.mingjava;
  import java.io.*;

  public class TestDataIO
  {
  public static void main(String[] args) throws IOException
  {
  Account account = new Account("mingjava","eric.zhan@263.net",25,true);
  System.out.println("before serialization.........");
  System.out.println(account.toString());
  ByteArrayOutputStream baos = new ByteArrayOutputStream();
  DataOutputStream dos = new DataOutputStream(baos);
  account.serialize(dos);
  DataInputStream dis = new DataInputStream(new ByteArrayInputStream(baos.toByteArray()));
  Account sAccount = Account.deserialize(dis);
  System.out.println("after serialization..........");
  System.out.println(sAccount.toString());
  dos.close();
  dis.close();
  }
  }

  package com.j2medev.mingjava;
  import java.io.*;

  public class Account
  {
  private String userName = "";
  private String email = "";
  private int age = 0;
  private boolean gender = false;

  public Account()
  {}

  public Account(String userName, String email, int age, boolean gender)
  {
  this.userName = userName;
  this.email = email;
  this.age = age;
  this.gender = gender;
  }

  public void serialize(DataOutputStream dos) throws IOException
  {
  dos.writeUTF(userName);
  dos.writeUTF(email);
  dos.writeInt(age);
  dos.writeBoolean(gender);
  }

  public static Account deserialize(DataInputStream dis) throws IOException
  {
  Account account = new Account();
  account.userName = dis.readUTF();
  account.email = dis.readUTF();
  account.age = dis.readInt();
  account.gender = dis.readBoolean();
  return account;
  }

  public String toString()
  {
  return "UserName = " + userName + " Email = " + email + " age = " + age + " gender = " + (gender ? "male" : "female");
  }
  }

  编译运行程序在控制台输出:

  before serialization.........
  UserName = mingjava Email = eric.zhan@263.net age = 25 gender = male
  after serialization..........
  UserName = mingjava Email = eric.zhan@263.net age = 25 gender = male

  序列化成功,后面我将讲述如何在J2ME联网中使用序列化机制。

精彩图集

赞助商链接