0

当我试图打开它时,它找不到资源。所以,我已经尝试使用该解决方案,但我遇到了另一个问题:

Exception in thread "main" java.lang.Error: Unresolved compilation
problem: Cannot make a static reference to the non-static method
getClass() from the type Object
        at Resources.getMainBG(Resources.java:21)
        at Tetris.<init>(Tetris.java:21)
        at Main.main(Main.java:5)

当前代码:

import java.awt.*;
import java.io.File;
import javax.imageio.ImageIO;
import javax.swing.ImageIcon;

public class Resources 
{
    // this class import the breaks's photos into an image array named "images"
    private static Image[] images = new Image[7];
    private static Image[] BG = new Image[3]; // 1=frame,2=pane,3=nextPane


    public static Image getImage(int color){
        if(images[color]==null){
            try{images[color] = new ImageIcon(getClass().getResource("images/block" + color + ".png")).getImage();}
            catch (Exception e){e.printStackTrace();System.exit(1);}}
        return images[color];}

    public static Image getMainBG() {
        if (BG[0] == null)
            BG[0] = new ImageIcon(getClass().getResource("images/MainBG.png")).getImage();
        return BG[0];}

    public static Image getPaneBG(){
        if (BG[1] == null)
            BG[1] = new ImageIcon(getClass().getResource("images/PaneBG.png")).getImage();
        return BG[1];}

    public static Image getNextBG() {
        if (BG[2] == null)
            BG[2] = new ImageIcon(getClass().getResource("images/NextBG.png")).getImage();
        return BG[2];}
}

非常感谢你的帮助!

4

3 回答 3

2

异常说明了一切 - 导出代码时甚至没有编译代码。此方法无效:

public static Image getMainBG() {
    if (BG[0] == null)
        BG[0] = new ImageIcon(getClass().getResource("images/MainBG.png")).getImage();
    return BG[0];
}

你不能getClass()在静态方法中调用 unqualified 。当然,您也可以改用Resources.class

请注意,您不应该接近异常:您应该在开始打包之前检查您的代码是否编译。

于 2013-04-16T22:20:07.420 回答
0

试试这个:

Image i = javax.imageio.ImageIO.read(getClass().getResourceAsStream("/images/x.png"));
于 2013-04-16T22:20:53.240 回答
0

答案在例外中。你应该打电话

Resources.class.getResource(...)

代替

getClass().getResource(...)
于 2013-04-16T22:21:36.960 回答