Jar 获取图像作为资源 [英] Jar get image as resource

问题描述

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.

尝试{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());

<块引用>

线程AWT-EventQueue-0"中的异常java.lang.NullPointerException在 net.sharpcode.crawler.ui.CrawlerFrame.init(CrawlerFrame.java:35)在 net.sharpcode.crawler.ui.CrawlerFrame.(CrawlerFrame.java:28)在 net.sharpcode.crawler.Bootstrapper$1.run(Bootstrapper.java:55)

我试过了:

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

解决方案

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

I'm trying to get load an image from my jar. But no matter what string I supply for getResource() it always returns 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)

I've tried:

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

解决方案

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

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