求指点,大神们
这个异常是什么意思啊,怎么解决啊?java.io.NotSerializableException: javax.swing.plaf.metal.MetalFileChooserUI
at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1180)
at java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1528)
at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1493)
at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1416)
at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1174)
at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:346)
at javax.swing.event.EventListenerList.writeObject(EventListenerList.java:257)
at sun.reflect.GeneratedMethodAccessor6.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:601)
at java.io.ObjectStreamClass.invokeWriteObject(ObjectStreamClass.java:962)
at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1480)
at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1416)
at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1174)
at java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1528)
at java.io.ObjectOutputStream.defaultWriteObject(ObjectOutputStream.java:438)
at javax.swing.JComponent.writeObject(JComponent.java:5525)
at sun.reflect.GeneratedMethodAccessor10.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:601)
at java.io.ObjectStreamClass.invokeWriteObject(ObjectStreamClass.java:962)
at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1480)
at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1416)
at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1174)
at java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1528)
at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1493)
at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1416)
at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1174)
at java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1528)
at java.io.ObjectOutputStream.defaultWriteObject(ObjectOutputStream.java:438)
at java.awt.Window.writeObject(Window.java:2893)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:601)
at java.io.ObjectStreamClass.invokeWriteObject(ObjectStreamClass.java:962)
at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1480)
at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1416)
at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1174)
at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:346)
at java.awt.Window.writeObject(Window.java:2910)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:601)
at java.io.ObjectStreamClass.invokeWriteObject(ObjectStreamClass.java:962)
at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1480)
at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1416)
at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1174)
at java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1528)
at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1493)
at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1416)
at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1174)
at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:346)
at LoanJFrame.writetofile(LoanJFrame.java:155)
at LoanJFrame.actionPerformed(LoanJFrame.java:206)
at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:2018)
at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2341)
at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:402)
at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:259)
at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:252)
at java.awt.Component.processMouseEvent(Component.java:6504)
at javax.swing.JComponent.processMouseEvent(JComponent.java:3321)
at java.awt.Component.processEvent(Component.java:6269)
at java.awt.Container.processEvent(Container.java:2229)
at java.awt.Component.dispatchEventImpl(Component.java:4860)
at java.awt.Container.dispatchEventImpl(Container.java:2287)
at java.awt.Component.dispatchEvent(Component.java:4686)
at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4832)
at java.awt.LightweightDispatcher.processMouseEvent(Container.java:4492)
at java.awt.LightweightDispatcher.dispatchEvent(Container.java:4422)
at java.awt.Container.dispatchEventImpl(Container.java:2273)
at java.awt.Window.dispatchEventImpl(Window.java:2713)
at java.awt.Component.dispatchEvent(Component.java:4686)
at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:707)
at java.awt.EventQueue.access$000(EventQueue.java:101)
at java.awt.EventQueue$3.run(EventQueue.java:666)
at java.awt.EventQueue$3.run(EventQueue.java:664)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:76)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:87)
at java.awt.EventQueue$4.run(EventQueue.java:680)
at java.awt.EventQueue$4.run(EventQueue.java:678)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:76)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:677)
at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:211)
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:128)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:117)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:113)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:105)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:90) --------------------编程问答-------------------- 把代码也贴出来吧 --------------------编程问答-------------------- import java.util.*;
import java.awt.*;
import java.awt.event.*;
import java.io.*;
import javax.swing.*;
import javax.swing.filechooser.FileNameExtensionFilter;
import javax.swing.table.DefaultTableModel;
public class LoanJFrame extends JFrame implements ActionListener
{
private File file;
private JFileChooser fchooser;
private JTextField text_money, text_rate, text_year; //贷款金额、利率、年限文本行
private JSpinner spin_year, spin_month; //起始年月微调文本行
private JButton button; //计算按钮
private JTable table; //表格
Object datas[][]=new Object[0][5]; //创建存储表格数据项的二维数组
String titles[]={"年月","本金余额（元）","月还本金（元）","月还利息（元）","月还本息（元）"};
String[]header=titles;//定义表头
String ss[]=new String[5];//每一行的数据
JScrollPane js;
DefaultTableModel model;//用表头生成一个DefaultTableModel 对象
public LoanJFrame()
{
super("银行贷款按月还本付息的计算");
this.setBounds(200,200,1000,500);
this.setResizable(false);
this.setBackground(java.awt.Color.lightGray);
this.setDefaultCloseOperation(EXIT_ON_CLOSE);
JPanel panel = new JPanel();
this.getContentPane().add(panel, "North");
panel.add(new JLabel("贷款金额"));
text_money = new JTextField("100000",6);
panel.add(text_money);
panel.add(new JLabel("元 贷款利率"));
text_rate = new JTextField("0.5025",6);
panel.add(text_rate);
panel.add(new JLabel("%/月 贷款年限"));
text_year = new JTextField("5",3);
panel.add(text_year);
panel.add(new JLabel("年 起始年月"));
Calendar today = Calendar.getInstance(); //获得当前日期
int year=today.get(Calendar.YEAR); //当年
int nextmonth=today.get(Calendar.MONTH)+1; //get(Calendar.MONTH)范围是0~11
nextmonth = nextmonth%12+1; //下月
if (nextmonth==1) //12月的下月是次年1月
year++;
spin_year = new JSpinner();
spin_year.setValue(year); //设置值
panel.add(spin_year);
panel.add(new JLabel("年"));
spin_month=new JSpinner(new SpinnerNumberModel(nextmonth, 1, 12, 1));
//数值模式初值为下月，范围是1~12，变化值为1
panel.add(spin_month);
panel.add(new JLabel("月"));
button = new JButton("计算");
panel.add(button);
button.addActionListener(this);
JButton bopen=new JButton("打开");
bopen.addActionListener(this);
panel.add(bopen);
JButton bsave=new JButton("保存");
bsave.addActionListener(this);
panel.add(bsave);
table=new JTable(datas, titles); //创建表格，datas指定数据，titles指定列标题
js=new JScrollPane(table);
this.getContentPane().add(js); //滚动窗格（包含表格）添加到框架内容窗格中部
this.file=null;
this.fchooser=new JFileChooser(new File(".",""));
this.fchooser.setFileFilter(new FileNameExtensionFilter("利息数据文件(*.dat)","dat"));
this.setVisible(true);
}
public void updateTable(Object[] objTable)
{
model.addRow(objTable);//给model对象添加数据行
table.setModel(model);//把model作为JTable的数据来源
}
public class LixiData implements java.io.Serializable
{
String data[]=new String[5];
public LixiData(String str[])
{
this.data=str;
}
}
public class ShowData extends JDialog
{
private JTable table;
DefaultTableModel model;//用表头生成一个DefaultTableModel 对象
Object datas[][]=new Object[0][5]; //创建存储表格数据项的二维数组
String titles[]={"年月","本金余额（元）","月还本金（元）","月还利息（元）","月还本息（元）"};
String[]header=titles;//定义表头
String ss[]=new String[5];//每一行的数据
JScrollPane js;
public ShowData(JFrame jframe)
{
super(jframe,"数据信息",true);
this.setBounds(500,150,600,400);
this.setResizable(false);
this.setDefaultCloseOperation(HIDE_ON_CLOSE);
this.getContentPane().setLayout(new FlowLayout(FlowLayout.CENTER));
table=new JTable(datas, titles); //创建表格，datas指定数据，titles指定列标题
js=new JScrollPane(table);
this.getContentPane().add(js); //滚动窗格（包含表格）添加到框架内容窗格中部
FileInputStream fin=null;
ObjectInputStream objin=null;
boolean f=true;
try
{
fin=new FileInputStream(file);
objin=new ObjectInputStream(fin);
}catch(Exception e){JOptionPane.showMessageDialog(this,"文件不合法!");f=false;}
if(f)
{
while(true)
try
{
LixiData lixi=(LixiData)objin.readObject();
this.updateTable(lixi.data);
}catch(Exception ex){break;}
try
{
objin.close();
fin.close();
}catch(Exception ex){}
this.setVisible(true);
}
}
public void updateTable(Object[] objTable)
{
model.addRow(objTable);//给model对象添加数据行
table.setModel(model);//把model作为JTable的数据来源
}
}
public void writetofile()
{
LixiData lixi[]=new LixiData[table.getRowCount()];
for(int i=0;i<table.getRowCount();i++)
{
String str[]={table.getValueAt(i,0)+"",table.getValueAt(i,1)+"",table.getValueAt(i,2)+"",
table.getValueAt(i,3)+"",table.getValueAt(i,4)+"",};
lixi[i]=new LixiData(str);
}
FileOutputStream fout=null;
ObjectOutputStream objout=null;
Object objs[]=lixi;
try
{
fout=new FileOutputStream(this.file);
objout=new ObjectOutputStream(fout);
for(int i=0;i<objs.length;i++)
objout.writeObject(objs[i]);
objout.close();
fout.close();
}catch(Exception e){e.printStackTrace();}
}
public void actionPerformed(ActionEvent e) //单击事件处理方法
{
if(e.getActionCommand()=="计算")
{ model=new DefaultTableModel(header,0);
int months=Integer.parseInt(text_year.getText())*12; //还款月数
int year=Integer.parseInt(""+spin_year.getValue()); //起始年份
int mon=Integer.parseInt(""+spin_month.getValue()); //起始月份
double leavings=Double.parseDouble(""+text_money.getText()); //本金余额
double pay=leavings/months; //月还本金
double rate=Double.parseDouble(""+text_rate.getText());//贷款利率
if(months>0)
for (int i=0; i<months; i++)
{
ss[0] = year+"年"+mon+"月";
ss[1] = String.format("%9.2f",leavings);
ss[2] = String.format("%9.2f",pay); //月还本金
ss[3] = String.format("%9.2f",leavings*rate); //月还利息
ss[4] = String.format("%9.2f",pay+leavings*rate); //月还本息
this.updateTable(ss);
if (mon==12)
year++;
mon = mon%12+1; //下月
leavings -= pay; //本金余额减去月还本金
}
else
{
String voids[]=new String[5]; //如果年限为0清空表格
this.updateTable(voids);
model.removeRow(0);
}
}
if(e.getActionCommand()=="打开"&&fchooser.showOpenDialog(this)==JFileChooser.APPROVE_OPTION)
{
this.file=fchooser.getSelectedFile();
this.setTitle(this.file.getName());
new ShowData(this);
}
else if(e.getActionCommand()=="保存"&&this.file!=null)
{
this.writetofile();
}
else if(e.getActionCommand()=="保存"&&this.file==null&&fchooser.showSaveDialog(this)==JFileChooser.APPROVE_OPTION)
{
this.file=fchooser.getSelectedFile();
if(!file.getName().endsWith(".dat"))
this.file=new File(file.getAbsolutePath()+".dat");
this.writetofile();
this.setTitle(this.file.getName());
}
}
public static void main(String args[])
{
new LoanJFrame();
}
}
--------------------编程问答-------------------- --------------------编程问答-------------------- 你的代码是自己写的还是从哪COPY的。 --------------------编程问答--------------------
给程序添加对文件操作的功能是我帮同学写的.... --------------------编程问答-------------------- 这个类没有序列化，让它实现一个Serializable接口。
补充：Java , Java SE
