Image won't appear in JLabel

问题

I've created GUI for my application using Netbeans' GUI Builder. I am trying to display a JFrame containing a JLabel with an image, and I can't get the Image to display.

My generated code :

private void initComponents() {
        //...
        jLabel1 = new JLabel(new ImageIcon(myPicture));
}

And my class code:

public class GUIWindow extends javax.swing.JFrame {

    BufferedImage myPicture;

    /** Creates new form GUIWindow */
    public GUIWindow() throws IOException {
        myPicture = ImageIO.read(new File("images/logo.png"));
        initComponents();
        this.add(jLabel1);

    }
}

but I still don't see an image ... (path to the image file is fine) its sth like:

my-project :
  /build
  /dist
  /images/logo.png
  /nbproject
  /src (here I have all my source files)
  /build.xml
  /manifest.mf

回答1:

you can use like this

URL imgSmartURL = this.getClass().getResource("your image path");
jLabel1 = new JLabel(new ImageIcon(imgSmartURL), JLabel.CENTER);

回答2:

I would do something like this instead.

    JLabel dice1 = new JLabel();
    ImageIcon one = new ImageIcon("dice/1.png");

    //set dice1 position
    dice1.setLocation(20, 100);
    dice1.setSize(115, 115);
    dice1.setIcon(one);
    gamepanel.add(dice1);

回答3:

If you are using netbeans you can directly add an image to a jLabel by setting properties. Right click on the jLabel -> properties -> icon -> (if it's external image) import to project(upload your image) -> ok . It'l be added into your jLabel.

回答4:

I'd suggest you copy the image in a seperate folder(images).
Then use Toolkit.getDefaultToolkit().getImage("images/A.png");

I believe there's a similar question

回答5:

private ImageIcon imageIconPrint =

new ImageIcon(getClass().getResource("/image/print.gif"));

create button and add follwing code:

jbtCanada.addActionListener(new ActionListener() {

  public void actionPerformed(ActionEvent e) {

    jlblFlag.setIcon(imageIconCanada);

  }

});

this would help i think

来源：https://stackoverflow.com/questions/11724564/image-wont-appear-in-jlabel

标签

java

image

swing

user-interface

jframe