ImageIO 不会正确导入 BufferedImage [英] ImageIO wont import BufferedImage correctly

问题描述

错误抛出--

线程Thread-3"中的异常 java.lang.IllegalArgumentException: input == null！在 javax.imageio.ImageIO.read(来源不明)

Exception in thread "Thread-3" java.lang.IllegalArgumentException: input == null! at javax.imageio.ImageIO.read(Unknown Source)

代码--

try {
        playerImage = ImageIO.read(Player.class
                .getResourceAsStream("/toon.png"));
    } catch (IOException e) {
        e.printStackTrace();
    }

文件路径--

H:\workspace\Isaac\resources\toon.png

H:\workspace\Isaac\resources\toon.png

我对此进行了一些研究，但没有一个解决方案对我真正有效.有什么想法吗?

Ive researched this a bit but none of the solutions have really worked for me. any ideas?

推荐答案

如果 Isaac 是您的项目文件夹，那么您的阅读方式应该有效.请检查目录 resources 是否是源文件夹(在 eclipse 中它应该有一个文件夹的图标，上面有一个 java 包的覆盖)，如果不是，则右键单击它并转到 构建路径并选择Use as Source Folder.

If Isaac is your project folder, then the way your are reading should work. Please check whether the directory resources is a source folder (in eclipse it should have an icon of a folder with an overlay of a java package), if not then right click on it and got to Build path and choose Use as Source Folder.

您的目录结构应如下所示:

Your directory structure should look something like this:

编译前

H:\workspace\Isaac
├───resources
│       toon.png
│
└───src
        Player.java

编译后

H:\workspace\Isaac
├───bin
│       Player.class
│       toon.png
│
├───resources
│       toon.png
│
└───src
        Player.java

getResourceAsStream 在 bin 中查找图像，而不是在 resources

getResourceAsStream looks for the image in bin and not in the one in resources

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