我建了一个类
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Component;
import java.awt.Cursor;
import java.awt.FlowLayout;
import java.awt.Graphics;
import java.awt.Image;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import java.awt.event.MouseListener;
import javax.swing.BorderFactory;
import javax.swing.ImageIcon;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JTable;
import javax.swing.table.TableCellRenderer;
import cn.edu.nju.software.datamodel.News;
public class NewsTableRenderer extends JPanel implements TableCellRenderer{
/**
*
*/
private static final long serialVersionUID = 1L;
private String title;
private String date;
public JLabel viewport;
private String url;
private Image img;
JLabel d;
public NewsTableRenderer(){
super();
this.setLayout(new BorderLayout());
viewport=new JLabel();
d=new JLabel();
this.setBorder(BorderFactory.createLineBorder(Color.black));
viewport.addMouseListener(a1);
}
@Override
public Component getTableCellRendererComponent(JTable table, Object value,
boolean isselected, boolean hasfocused, int row, int column) {
// TODO Auto-generated method stub
News news=(News)value;
this.title=news.getTitle();
this.date=news.getDate();
String tmp="<HTML><h3><U>"+this.title+"</U></h3></HTML>";
viewport.setText(tmp);
d.setText(date);
this.add(viewport,"Center");
this.add(d,"East");
if(isselected){
this.setBackground(Color.blue);
}
return this;
}
MouseListener a1=new MouseAdapter(){
public void mouseClicked(MouseEvent e){
new JOptionPane().showMessageDialog(null, "clicked");
}
};
}
这个cellrenderer的问题纠结了我好久。鼠标点击完全无反应
／
if(isselected){
this.setBackground(Color.blue);
}
／
添加这行背景也没有变。
时间监听也完全没反应。
是我那里写错了吗？ 代码很简单，希望大家看一下。
------解决方案--------------------
你原来的代码已经能够实现一部分你想要的功能，至少背景色变色没问题，给你贴的代码除了侦听部分都实现，侦听没实现是因为单击事件从来没有传进去，这个还要再想想。
我怀疑是你自己实现了Render不会用，所以之一觉得有问题，具体使用这个Render也贴出来了，在下一楼
- Java code
import java.awt.BorderLayout;import java.awt.Color;import java.awt.Component;import java.awt.Cursor;import java.awt.FlowLayout;import java.awt.Graphics;import java.awt.Image;import java.awt.event.MouseAdapter;import java.awt.event.MouseEvent;import java.awt.event.MouseListener;import java.util.Date;import javax.swing.*;import javax.swing.table.TableCellRenderer;//import cn.edu.nju.software.datamodel.News;public class NewsTableRenderer extends JPanel implements TableCellRenderer{ /** * */ private static final long serialVersionUID = 1L; private String title; private String date; public JLabel viewport; private String url; private Image img; JLabel d;// JButton btn; public NewsTableRenderer(){ super(); this.setLayout(new BorderLayout()); viewport=new JLabel("init"); d=new JLabel("init");// btn=new JButton("click"); this.add(viewport,BorderLayout.CENTER); this.add(d,BorderLayout.EAST);// this.add(btn,BorderLayout.WEST); this.setBorder(BorderFactory.createLineBorder(Color.black)); MouseListener a1=new MouseAdapter(){ @Override public void mouseClicked(MouseEvent e){ new JOptionPane().showMessageDialog(null, "clicked"); } }; viewport.addMouseListener(a1); //侦听不起作用，事件从来没有传过去// btn.addMouseListener(a1); } @Override public Component getTableCellRendererComponent(JTable table, Object value, boolean isselected, boolean hasfocused, int row, int column) {// TODO Auto-generated method stub//News news=(News)value;//this.title=news.getTitle();//this.date=news.getDate(); this.title="title"; this.date=new Date().toString(); String tmp="<HTML><h3><U>"+this.title+"</U></h3></HTML>"; viewport.setText(tmp);// viewport.setText("test"); d.setText(date); if(isselected){ this.setBackground(Color.blue); } return this; }}