findlistmodel.java

实现简单聊天功能

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.border.*;
import java.util.Vector;
import java.net.*;
import java.io.*; 

//以下扩展DefaultListModel类建立列表
public class FindListModel extends DefaultListModel{   
	public FindListModel(Vector nickname,Vector sex,Vector place)
          { for(int i=0;i<nickname.size();++i){
          addElement(new Object[]{nickname.get(i),sex.get(i),place.get(i)});
          }
          }
public  String getName(Object object)
  { Object[] array=(Object[])object;
  return(String) array[0];
  }
public String getSex(Object object)
{ Object[] array=(Object[]) object;
  return (String) array[1];
  }
public String getPlace(Object object)
{ Object[] array=(Object[])object;
   return (String) array[2];

}
}
  class FindListCellRenderer extends JLabel implements ListCellRenderer//以下是处理列表渲染
{ private Border lineBorder=BorderFactory.createLineBorder(Color.red,2),
           emptyBorder =BorderFactory.createEmptyBorder(2,2,2,2);
  public FindListCellRenderer(){
     setOpaque(true);
     }
public Component getListCellRendererComponent(JList list,Object value,int index,
                                                boolean isSelected,boolean cellHasFocus)
      { FindListModel model=(FindListModel) list.getModel();
        setText(model.getName(value)+"  "+model.getSex(value)+"  "+model.getPlace(value));
             if(isSelected){setForeground(list.getSelectionForeground());
                         setBackground(list.getSelectionBackground());
                         }
          else { setForeground(list.getForeground());
                   setBackground(list.getBackground());}
          if(cellHasFocus) setBorder(lineBorder);
                else setBorder(emptyBorder);
          return this;
          }
}