尝试从 jar 文件加载图标 [英] Trying to load icon from jar file

问题描述

我正在尝试从 jar 文件加载图标.我都尝试从 jar 文件内的类以及 jar 文件外的类加载它.

I am trying to load icons from a jar file. I have both tried to load it from classes within the jar file as well as classes outside the jar file.

在 jarfile 之外 - 返回空异常

outside of the jarfile - returned a null exception

java.net.URL imageURL = LoadHTMLExample.class.getClassLoader()
    .getResource("icons/mouse.png");

在 LoadHTMLExample 中 jar 文件的一侧

in side of the jar file in the LoadHTMLExample

java.net.URL imageURL = this.getClass().getClassLoader()
    .getResource("icons/mouse.png");

得到同样的错误.

我也尝试过"icons", "/icons" "icons/" "/icons/mouse.png" "icons/mouse.png"

I have also tried variations of "icons", "/icons" "icons/" "/icons/mouse.png" "icons/mouse.png"

似乎没有任何想法

图标在jar文件中

jar
 --icons --- {all the images}

 --com.blah.blah

推荐答案

跳过类加载器，而是以流的形式获取资源.如果您不需要 URL，您可以像这样直接将它们转换为 BufferedImages.我将流和异常处理留作进一步练习.

Skip the class loader, and get the resource as a stream instead. If you don't need the URL you can turn them directly into BufferedImages like so. I've left the stream and exception handling as a further exercise.

InputStream stream = LoadHTMLExample.class
    .getResourceAsStream( "/icons/mouse.png" );
BufferedImage image = ImageIO.read( stream );

<小时>

提问者需要一个 URL，它可以让我们回到其他人的建议.图像肯定在罐子里不是吗?

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Questioner needs the URL which brings us back to everyone else's suggestions. The images are definitely in the jar aren't they?

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