Question

用java在label上图片显示不出来

求大神指点啊，代码哪里有问题啊

package xuni;

import java.awt.EventQueue;

import javax.swing.ImageIcon;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import java.awt.Color;
import java.awt.FlowLayout;
import java.awt.BorderLayout;

public class shiyishi {

private JFrame frame;
public static void main(String[] args) {
EventQueue.invokeLater(new Runnable() {
public void run() {
try {
String path="";
shiyishi window = new shiyishi();
while(true){
for(int i=2;i<4;i++){
path="/images/11"+i+".png";
System.out.println(path);
window.initialize(path);
window.frame.setVisible(true);
Thread.sleep(1000);
window.frame.setVisible(false);
}
}

} catch (Exception e) {
e.printStackTrace();
}
}
});
}
public shiyishi() {
frame = new JFrame();
frame.setBounds(100, 100, 576, 440);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
//initialize();
}
private void initialize(String path) {

JLabel lblNewLabel = new JLabel();
lblNewLabel.setIcon(new ImageIcon(shiyishi.class.getResource(path)));
frame.getContentPane().add(lblNewLabel, BorderLayout.CENTER);

//ImageIcon image=new ImageIcon("/images/112.png");
}

}

Answer 1

import java.awt.GridLayout;//新增加

public class JLabelImageDemo extends JFrame {
public static void main(String[] args) {
EventQueue.invokeLater(new Runnable() {
public void run() {
new JLabelImageDemo();
}
});
}
public JLabelImageDemo() {
super("JLabelImageDemo");
this.setBounds(100, 100, 576, 440);
this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
this.setLayout(new GridLayout(1, 2));
try{
String path;
for(int i=2; i<4; i++){
path="/images/11"+i+".jpg";
System.out.println(path);
initialize(path);
Thread.sleep(1000);
}

} catch (Exception e) {
e.printStackTrace();
}
this.setVisible(true);
}
private void initialize(String path) {
JLabel lblNewLabel = new JLabel();
lblNewLabel.setIcon(new ImageIcon(getClass().getResource(path)));
this.getContentPane().add(lblNewLabel);
}
}

经测试，正确显示两张图片

追问

我的意思是交替出现两张图片，不是同时出现两张啊，求指点

Answer 2

ico = new ImageIcon("images/welcome/welcome1.jpg");
label = new JLabel(ico);

panel.add(BorderLayout.CENTER,label);