JTable编辑有关问题

package pms.client.ui.dlg;

import java.awt.BorderLayout;
import java.awt.Dimension;
import java.awt.FlowLayout;
import java.awt.Window;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.rmi.RemoteException;
import java.util.Properties;
import java.util.Set;
import java.util.Vector;

import javax.swing.CellEditor;
import javax.swing.JButton;
import javax.swing.JDialog;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTabbedPane;
import javax.swing.JTable;
import javax.swing.table.DefaultTableModel;

import org.apache.log4j.Logger;

import pms.client.main.ClientContext;
import pms.client.util.ClientConfigReader;
import pms.client.util.PmsDictionary;
import pms.common.util.CommonUtil;

public class DlgSetParameter extends JDialog implements ActionListener{
	static Logger logger=Logger.getLogger(DlgSetParameter.class);
	JTabbedPane configure=new JTabbedPane();
	JPanel mainPanel=new JPanel();
	JPanel buttonPanel_server=new JPanel(new FlowLayout());
	JPanel buttonPanel_client=new JPanel(new FlowLayout());
	JButton btnOK_server=new JButton("确定");
	JButton btnCancel_server=new JButton("取消");
	JButton btnOK_client=new JButton("确定");
	JButton btnCancel_client=new JButton("取消");
	JScrollPane jsp_client=new JScrollPane();
	JScrollPane jsp_server=new JScrollPane();
	JTable serverconfigTable=new JTable();
	JTable clientconfigTable=new JTable();
	JPanel serverconfigPanel=new JPanel(new BorderLayout());
	JPanel clientconfigPanel=new JPanel(new BorderLayout());
	public DlgSetParameter(Window window){
		super(window);
		jbInit();
	}
	
	private void jbInit(){
		
		buttonPanel_client.setPreferredSize(new Dimension(300,80));
		buttonPanel_server.setPreferredSize(new Dimension(300,80));
		btnCancel_client.setPreferredSize(new Dimension(60,22));
		btnCancel_server.setPreferredSize(new Dimension(60,22));
		btnOK_server.setPreferredSize(new Dimension(60,22));
		btnOK_client.setPreferredSize(new Dimension(60,22));
		btnOK_client.addActionListener(this);
		btnOK_server.addActionListener(this);
		btnCancel_client.addActionListener(this);
		btnCancel_server.addActionListener(this);
		try {
			serverconfigTable.setModel(new ParameterModel(ClientContext.getcCommonQueryIFC().findServerconfig()));
		} catch (RemoteException e) {
			logger.error(e);
		}
		clientconfigTable.setModel(new ParameterModel(ClientConfigReader.getProperties()));
		clientconfigTable.addMouseListener(new MouseAdapter(){

			@Override
			public void mouseClicked(MouseEvent e) {
				// TODO Auto-generated method stub
				if(e.getClickCount()==1){	
					if(clientconfigTable.isEditing()){
						int row_edit=clientconfigTable.getSelectedRow();
						int col_edit=clientconfigTable.getSelectedColumn();
						CellEditor ce = clientconfigTable.getCellEditor(row_edit, col_edit); 
						ce.stopCellEditing();