Question

我尝试在eclipse中将正常运行导出到可运行的jar文件。它没有正确启动，所以我尝试使用终端启动它，我收到了这个错误消息：

java.io.IOException: Can't read res\fonts\slkscr.ttf at java.awt.Font.createFont(Unknown Source) at dev.tilegame.gfx.FontLoader.loadFont(FontLoader.java:12) at dev.tilegame.gfx.Assets.init(Assets.java:21) at dev.tilegame.Game.init(Game.java:55) at dev.tilegame.Game.run(Game.java:93) at java.lang.Thread.run(Unknown Source)

我使用资产类来存储我的所有资产：

public static void init() { font28 = FontLoader.loadFont("res/fonts/slkscr.ttf", 28); font52 = FontLoader.loadFont("res/fonts/slkscr.ttf", 52);

那就是 FontLoader ：

public class FontLoader { public static Font loadFont(String path, float size){ try { return Font.createFont(Font.TRUETYPE_FONT, new File(path)).deriveFont(Font.PLAIN, size); } catch (FontFormatException | IOException e) { e.printStackTrace(); System.exit(1); } return null; }

}

-Thanks

编辑：

的EntityManager：

public class EntityManager { private Handler handler; private Player player; private ArrayList<Entity> entities; private ArrayList<Entity> postentities; Iterator<Entity> it; private Comparator<Entity> renderSorter = new Comparator<Entity>() { @Override public int compare(Entity a, Entity b) { if (a.getY() + a.getHeight() < b.getY() + b.getHeight()) return -1; return 1; } }; public EntityManager(Handler handler, Player player) { this.handler = handler; this.player = player; entities = new ArrayList<Entity>(); postentities = new ArrayList<Entity>(); addEntity(player); } public void tick() { Iterator<Entity> it = entities.iterator(); while (it.hasNext()) { Entity e = it.next(); e.tick(); if (!e.isActive()) it.remove(); } for (int i = 0; i < postentities.size(); i++) { entities.add(postentities.get(i)); postentities.remove(i); } entities.sort(renderSorter); } public void render(Graphics g) { for (Entity e : entities) { e.render(g); } player.postRender(g); } public void addEntity(Entity e) { entities.add(e); } public void postaddEntity(Entity e) { postentities.add(e); }

Answer 1

您遇到的问题是，当您在JAR中有文件路径时，它是不透明网址。这意味着它不代表实际文件，而是代表压缩JAR中的路径。在您的情况下，您应该使用getResourceAsStream获取InputStream到正确的文件：

public static Font loadFont(String path, float size){
    try {
        Font f = Font.createFont(Font.TRUETYPE_FONT, FontLoader.class.getResourceAsStream(path));
        return f.deriveFont(size);
    } catch (FontFormatException e) {
        e.printStackTrace();
    } catch (IOException e) {
        e.printStackTrace();
    }
    return null;
}

请注意路径应以前导斜杠开头;这表示jar文件的根目录。（例如"res/fonts/slkscr.ttf"变为"/res/fonts/slkscr.ttf"）

Answer 2

而不是

return Font.createFont(Font.TRUETYPE_FONT, new File(path)).deriveFont(Font.PLAIN, size);

您可以使用

Font.createFont(Font.TRUETYPE_FONT, new FileInputStream(new File(path))).deriveFont(Font.PLAIN,size);

FileINputStream将为您输入文件

有关FileINputStream的更多信息，请查看此内容：https://docs.oracle.com/javase/7/docs/api/java/io/FileInputStream.html

如何在静态类中加载字体并用作JAR

2 个答案: