java从jPanel中的URL添加图像

Question

我有一个小问题，我尝试了不同的解决方案，在我的jPanel中添加来自URL的图像，但没有成功。这就是我的jPanel的样子：

import javax.swing.DefaultListModel;
import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JLabel;
import javax.swing.JList;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import java.awt.Color;
import java.awt.Component;
import java.awt.FlowLayout;
import java.awt.Font;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.util.Vector;


public class Hello extends JPanel{

    JPanel panel = new BackgroundPanel();
    JPanel HomeWindowPanel;
    JLabel secondlbl = new JLabel("Hello");

    public Hello () {
        //I want to add a picture here from URL
    }
}

如果有人能教我怎么做，我将不胜感激

Answer 1

查看以下示例代码：

http://docs.oracle.com/javase/tutorial/displayCode.html?code=http://docs.oracle.com/javase/tutorial/uiswing/examples/components/LabelDemoProject/src/components/LabelDemo.java

特别是createImageIcon方法