序列化： 假设被序列化的对象有一些到其它对象的引用，这些对象还义勇了另外一些对象，在序列化该对象的时候，所有它引用的对象将被递归地定位和序列化。
归纳：•对象--》对象输出流--》输出流--》(序列化)
•输入流--》对象输入流--》对象---》(反序列化)
示例如下：
1：作出一个要序列化的窗体：如图
类为kankan.java
import javax.swing.JPanel;
import javax.swing.JFrame;
import java.awt.Rectangle;
import javax.swing.JRadioButton;
import javax.swing.JTextArea;
public class kankan extends JFrame {
private static final long serialVersionUID = 1L;
private JPanel jContentPane = null;
private JRadioButton jRadioButton = null;
private JRadioButton jRadioButton1 = null;
private JTextArea jTextArea = null;
/**
* This is the default constructor
*/
public kankan() {
super();
initialize();
}
/**
* This method initializes this
*
* @return void
*/
private void initialize() {
this.setSize(300, 200);
this.setContentPane(getJContentPane());
this.setTitle("JFrame");
}
/**
* This method initializes jContentPane
*
* @return javax.swing.JPanel
*/
private JPanel getJContentPane() {
if (jContentPane == null) {
jContentPane = new JPanel();
jContentPane.setLayout(null);
jContentPane.add(getJRadioButton(), null);
jContentPane.add(getJRadioButton1(), null);
jContentPane.add(getJTextArea(), null);
}
return jContentPane;
}
/**
* This method initializes jRadioButton
*
* @return javax.swing.JRadioButton
*/
private JRadioButton getJRadioButton() {
if (jRadioButton == null) {
jRadioButton = new JRadioButton();
jRadioButton.setBounds(new Rectangle(30, 24, 77, 21));
jRadioButton.setText("123");
}
return jRadioButton;
}
/**
* This method initializes jRadioButton1
*
* @return javax.swing.JRadioButton
*/
private JRadioButton getJRadioButton1() {
if (jRadioButton1 == null) {
jRadioButton1 = new JRadioButton();
jRadioButton1.setBounds(new Rectangle(35, 56, 59, 21));
jRadioButton1.setText("1234");
}
return jRadioButton1;
}
/**
* This method initializes jTextArea
*
* @return javax.swing.JTextArea
*/
private JTextArea getJTextArea() {
if (jTextArea == null) {
jTextArea = new JTextArea();
jTextArea.setBounds(new Rectangle(128, 15, 109, 116));
}
return jTextArea;
}
}
然后在用另一窗体来调用：
import javax.swing.JPanel;
import javax.swing.JFrame;
import javax.swing.JButton;
import java.awt.Rectangle;
import java.io.*;
public class haohao extends JFrame {
private static final long serialVersionUID = 1L;
private JPanel jContentPane = null;
private JButton jButton = null;
private JButton jButton1 = null;
private JButton jButton2 = null;
private JButton jButton3 = null;
public kankan f1;
public kankan f2;
/**
* This is the default constructor
*/
public haohao() {
super();
initialize();
}
/**
* This method initializes this
*
* @return void
*/
private void initialize() {
this.setSize(300, 200);
this.setContentPane(getJContentPane());
this.setTitle("JFrame");
}
/**
* This method initializes jContentPane
*
* @return javax.swing.JPanel
*/
private JPanel getJContentPane() {
if (jContentPane == null) {
jContentPane = new JPanel();
jContentPane.setLayout(null);
jContentPane.add(getJButton(), null);
jContentPane.add(getJButton1(), null);
jContentPane.add(getJButton2(), null);
jContentPane.add(getJButton3(), null);
}
return jContentPane;
}
/**
* This method initializes jButton
*
* @return javax.swing.JButton
*/
private JButton getJButton() {
if (jButton == null) {
jButton = new JButton();
jButton.setBounds(new Rectangle(14, 18, 81, 34));
jButton.setText("f1");
jButton.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent e) {
f1=new kankan();//显示要序列化窗体
f1.setVisible(true);
}
});
}
return jButton;
}
/**
* This method initializes jButton1
*
* @return javax.swing.JButton
*/
private JButton getJButton1() {
if (jButton1 == null) {
jButton1 = new JButton();
jButton1.setBounds(new Rectangle(154, 20, 100, 36));
jButton1.setText("序列化");
jButton1.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent e) {
f1=new kankan();
FileOutputStream fos = null;
try {
fos = new FileOutputStream ("d:\\456");//文件输出流
} catch (FileNotFoundException e1) {
// TODO 自动生成 catch 块
e1.printStackTrace();
}
try {
ObjectOutputStream oos=new ObjectOutputStream(fos);//输出流的对象
oos.writeObject(f1);//把对象写入文件流当中
fos.close();
oos.close();
} catch (IOException e1) {
// TODO 自动生成 catch 块
e1.printStackTrace();
}
}
});
}
return jButton1;
}
/**
* This method initializes jButton2
*
* @return javax.swing.JButton
*/
private JButton getJButton2() {
if (jButton2 == null) {
jButton2 = new JButton();
jButton2.setBounds(new Rectangle(13, 100, 86, 34));
jButton2.setText("反序列化");
jButton2.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent e) {
FileInputStream fis = null;
try {
fis = new FileInputStream("d:\\123");//文件输入流
} catch (FileNotFoundException e1) {
// TODO 自动生成 catch 块
e1.printStackTrace();
}
try {
ObjectInputStream ois=new ObjectInputStream(fis);//创建文件输入流的对象
f2=(kankan) ois.readObject();//把文件流读取出来给对象
fis.close();
ois.close();
} catch (IOException e1) {
// TODO 自动生成 catch 块
e1.printStackTrace();
} catch (ClassNotFoundException e2) {
// TODO 自动生成 catch 块
e2.printStackTrace();
}
}
});
}
return jButton2;
}
/**
* This method initializes jButton3
*
* @return javax.swing.JButton
*/
private JButton getJButton3() {
if (jButton3 == null) {
jButton3 = new JButton();
jButton3.setBounds(new Rectangle(158, 96, 96, 39));
jButton3.setText("F2");
jButton3.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent e) {
f2=new kankan();
f2.setVisible(true);
}
});
}
return jButton3;
}
}
•序列化也是实现远呈方法调用所需的，对象可以作为远程参数被传递。发送方序列化该对象，然后传送它，接收方再通过反序列化还原对象。