在浏览器中运行时的Java Applet不显示图像 [英] Java Applet Images will not display when run in browser

问题描述

我终于让我的Java小程序在浏览器中运行，但我现在面临着没有我的图像显示的问题。显示的唯一的事情是在applet的屏幕上绘制黑色文本。

I finally managed to get my java applet to run in my browser, however I now face the issue that none of my images will display. The only thing that displays is black text that is drawn in the screen in the applet.

为了让小程序在所有的工作，我不得不导出为一个罐子，并签署它自己。现在，我不知道为什么它是图像将不显示。我查了一下jar文件不包括所有的图像文件。同样，小程序完全运行良好，在Eclipse。

In order to get the applet to work at all, I had to export as a jar and sign it myself. Now, I'm wondering why it is that the images won't display. I checked and the jar file does include all the image files. Likewise, the applet runs perfectly well in Eclipse.

还有什么比这里是问题？

What could be the issue here?

mainscreen =新的ImageIcon（main.png）的getImage（）; 是要访问的第一个图像

mainscreen = new ImageIcon("main.png").getImage(); is the first image that should be accessed.

此外，我所有的类，包括applet类都在包。这些图像是那些软件包的所有外。

Additionally, all of my classes including the applet class are in packages. The images are all outside of those packages.

推荐答案

的ImageIcon（main.png）。的getImage（）建议您尝试加载从图标文件，这是不是小应用程序的情况下

ImageIcon("main.png").getImage() suggests that you are trying to load an icon from a File, which is not the case for applets

你需要使用嵌入式资源的getClass（）。的getResource（/路径/到/资源）。这将使您的应用程序它的类路径中进行搜索查找资源...

With embedded resources you need to use getClass().getResource("/path/to/resource"). This will allow your application to search within it's class path to find the resource...

尝试更多的东西，比如的ImageIcon（的getClass（）。的getResource（/ main.png））。的getImage（），假设 main.png 所在的jar文件的根文件夹内...

Try something more like ImageIcon(getClass().getResource("/main.png")).getImage(), assuming that the main.png resides within the root folder of the jar file...

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