java - Jar 获取图像作为资源

Question

我正在尝试从我的 jar 中加载图像。但无论我为 getResource() 提供什么字符串，它总是返回 null。

try {
    System.out.println(Bootstrapper.class.getResource("./img/logo.png").toURI().getPath());
} catch (URISyntaxException ex) {
    Logger.getLogger(CrawlerFrame.class.getName()).log(Level.SEVERE, null, ex);


   }
   ImageIcon ii = new ImageIcon(Bootstrapper.class.getResource("./img/logo.png"));
   setIconImage(ii.getImage());

Exception in thread "AWT-EventQueue-0" java.lang.NullPointerException at net.sharpcode.crawler.ui.CrawlerFrame.init(CrawlerFrame.java:35) at net.sharpcode.crawler.ui.CrawlerFrame.(CrawlerFrame.java:28) at net.sharpcode.crawler.Bootstrapper$1.run(Bootstrapper.java:55)

我已经尝试过:

getResource("") 
getResource(".") 
getResource("./") 
getResource("/img/logo.png") 
Bootstrapper.class.getProtectionDomain().getCodeSource().getLocation().getPath()

Answer 1

this.getClass().getResource("/net/sharpcode/crawler/img/logo.png")