jtable显示图片的问题?

Question

这是一个范例import java.util.Date;
import java.util.GregorianCalendar;
import java.util.Locale;
import java.util.ResourceBundle;
import java.util.Vector;import java.awt.BorderLayout;
import java.awt.FlowLayout;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import javax.swing.BorderFactory;
import javax.swing.ImageIcon;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.WindowConstants;
import javax.swing.table.DefaultTableModel;public class Test extends JFrame
{
    String[] columnNames =
        {
        "Name","Check-In Date","Check-Out Date","Smoking",
        "Fax","Laptop","Room Rate","Photo",
    };    Date dayOne = (new GregorianCalendar(2000,10,5)).getTime();
    Date dayTwo = (new GregorianCalendar(2000,10,7)).getTime();    Object[][] data =
        {
        {"Andrews",dayOne,dayTwo,
        new Boolean(true),new Boolean(true),
        new Boolean(true),new Double(79.99),
        new ImageIcon("tenchi.jpg")}
        ,        {"Anthony",dayOne,dayTwo,
        new Boolean(false),new Boolean(false),
        new Boolean(false),new Double(69.99),
        new ImageIcon("washu.jpg")}
        ,        {"Woodard",dayOne,dayTwo,
        new Boolean(true),new Boolean(false),
        new Boolean(false),new Double(99.99),
        new ImageIcon("sasami.jpg")}
        ,        {"Thomas",dayOne,dayTwo,
        new Boolean(false),new Boolean(true),
        new Boolean(true),new Double(79.99),
        new ImageIcon("aeka.jpg")}
        ,        {"Reed",dayOne,dayTwo,
        new Boolean(true),new Boolean(true),
        new Boolean(true),new Double(79.99),
        new ImageIcon("tenchi.jpg")}
        ,        {"Crenshaw",dayOne,dayTwo,
        new Boolean(false),new Boolean(false),
        new Boolean(false),new Double(69.99),
        new ImageIcon("washu.jpg")}
        ,        {"Royal",dayOne,dayTwo,
        new Boolean(true),new Boolean(false),
        new Boolean(false),new Double(99.99),
        new ImageIcon("sasami.jpg")}
        ,        {"Moore",dayOne,dayTwo,
        new Boolean(false),new Boolean(true),
        new Boolean(true),new Double(79.99),
        new ImageIcon("aeka.jpg")}
        ,
    };    JTable table = new JTable(new CustomModel(data,columnNames));
    public Test()
    {
        getContentPane().add(new JScrollPane(table),BorderLayout.CENTER);
    }    public static void main(String args[])
    {
        GJApp.launch(new Test(),"A Custom Table Model That Specifies Column Classes",300,300,650,182);
    }
}class CustomModel extends DefaultTableModel
{
    public CustomModel(Object[][] data,Object[] columnNames)
    {
        super(data,columnNames);
    }    public Class getColumnClass(int col)
    {
        // dataVector is a protected member of DefaultTableModel        Vector v = (Vector)dataVector.elementAt(0);
        return v.elementAt(col).getClass();
    }    public boolean isCellEditable(int row,int col)
    {
        Class columnClass = getColumnClass(col);
        return columnClass != ImageIcon.class && columnClass != Date.class;
    }
}class GJApp extends WindowAdapter
{
    static private JPanel statusArea = new JPanel();
    static private JLabel status = new JLabel(" ");
    static private ResourceBundle resources;    public static void launch(final JFrame f,String title,final int x,final int y,final int w,int h)
    {
        launch(f,title,x,y,w,h,null);
    }    public static void launch(final JFrame f,String title,final int x,final int y,final int w,int h,String propertiesFilename)
    {
        f.setTitle(title);
        f.setBounds(x,y,w,h);
        f.setVisible(true);        statusArea.setBorder(BorderFactory.createEtchedBorder());
        statusArea.setLayout(new FlowLayout(FlowLayout.LEFT,0,0));
        statusArea.add(status);
        status.setHorizontalAlignment(JLabel.LEFT);        f.setDefaultCloseOperation(WindowConstants.DISPOSE_ON_CLOSE);        if(propertiesFilename != null)
        {
            resources = ResourceBundle.getBundle(propertiesFilename,Locale.getDefault());
        }        f.addWindowListener(new WindowAdapter()
        {
            public void windowClosed(WindowEvent e)
            {
                System.exit(0);
            }
        });
    }    static public JPanel getStatusArea()
    {
        return statusArea;
    }    static public void showStatus(String s)
    {
        status.setText(s);
    }    static Object getResource(String key)
    {
        if(resources != null)
        {
            return resources.getString(key);
        }
        return null;
    }
}

Answer 1

这是绘制器和编辑器连接方法的问题。
首先，你要将想要显示图片的列进行如下类型设置：
ImageIcon ii=new ImageIcon("xxx.jpg");
添加这个object到JTable相应的列里最重要的是：
扩展一个TableModel类，如：
class CustomModel extends DefaultTableModel {
  public Class getColumnClass(int col) {
    Vector v=(Vector)dataVector.elementAt(0);
    return v.element(col).getClass();
  }
}
最后
JTable jtable=new JTable();
jtable.setModel(new CustomModel());

Answer 2

to  beyond_xiruo(J2EE苏鸿ASP.NET):
class ResultSetTableModel extends DefaultTableModel
{
  public ResultSetTableModel(Object[][] data,Object[] columnNames)
  {
    super(data,columnNames);
  }
  public Class getColumnClass(int col) {
    Vector v=(Vector)dataVector.elementAt(0);
    return v.elementAt(col).getClass();
  }
}
class ResultSetFrame extends JFrame
{  public ResultSetFrame()
   {       
        Vector userInfo = new Vector();
        Vector columnNames = new Vector();
        Vector data = new Vector();
        columnNames.add("编号");
        while(rs.next())
        {
         String id = rs.getString(1);//code
         String mypicture  = rs.getString(8);//picture
         userInfo.add(code);
         ImageIcon rpicture=new ImageIcon("aaa.gif");//mypicture存放图片路径          
         userInfo.add(rpicture);
         data.add(userInfo);
        }
        
        JTable table=new JTable();
        table.setModel(new ResultSetTableModel());//此处编译出错
        .....              
}
错误如下：
 cannot resolve symbol
constructor ResultSetTableModel()
location:class ResultSetTableModel
   table.setMode(new ResultSetTableModel());
实在找不到是怎么回事

Answer 3

谢谢beyond_xiruo(J2EE苏鸿ASP.NET)：
这是我对java不熟的缘故，我把
public ResultSetTableModel(Object[][] data,Object[] columnNames)
改成：
public ResultSetTableModel(Vector data,Vector columnNames)
然后：
ResultSetTableModel model = new ResultSetTableModel(data,columnNames);
JTable table=new JTable(model);
成功显示图片！