英文:
How can I fix an error with loading textures using ImageIO.read [Java] [Beginner]
问题
I recently decided to try getting back into Java after being away from it for many years. I'm following a YouTube tutorial series to create a game. I attempted to load a texture using the code provided below (I'm using Eclipse):
public static Render plane = loadBitmap("/textures/floor.png");public static Render loadBitmap(String fileName) {try {BufferedImage image = ImageIO.read(Texture.class.getResourceAsStream(fileName));int width = image.getWidth();int height = image.getHeight();Render result = new Render(width, height);image.getRGB(0, 0, width, height, result.pixels, 0, width);return result;} catch (Exception e) {Debug.logError("CRASH | Failed to load image");throw new RuntimeException(e);}}
However, I'm encountering the following errors:
Caused by: java.lang.RuntimeException: java.lang.IllegalArgumentException: input == null!at net.xernia.bluehero.graphics.Texture.loadBitmap(Texture.java:23)at net.xernia.bluehero.graphics.Texture.<clinit>(Texture.java:11)... 5 moreCaused by: java.lang.IllegalArgumentException: input == null!at java.desktop/javax.imageio.ImageIO.read(ImageIO.java:1356)at net.xernia.bluehero.graphics.Texture.loadBitmap(Texture.java:15)... 6 more
My project structure is as follows:
srcpackageTexture.javarestexturesfloor.png
Under Properties -> Java Build Path, I've added "res" as a class folder under the module path. I apologize if this is a basic error, but it's quite confusing for me. I hope this information is sufficient, and please let me know if I missed any crucial details ![如何修复使用ImageIO.read加载纹理时出现的错误 [Java] [初学者]](https://go.coder-hub.com/wp-content/themes/begin/img/smilies/icon_smile.gif){kind=icon}
英文:
I recently decided to try and get back into java after many years away from it and am following a youtube tutorial series for making a game. I have tried to load a texture I made using the following code
(I am using Eclipse)
public static Render plane = loadBitmap("/textures/floor.png");public static Render loadBitmap(String fileName) {try {BufferedImage image = ImageIO.read(Texture.class.getResourceAsStream(fileName));int width = image.getWidth();int height = image.getHeight();Render result = new Render(width, height);image.getRGB(0, 0, width, height, result.pixels, 0, width);return result;}catch (Exception e) {Debug.logError("CRASH | Failed to load image");throw new RuntimeException(e);}}
and I am receiving the following errors:
Caused by: java.lang.RuntimeException: java.lang.IllegalArgumentException: input == null!at net.xernia.bluehero.graphics.Texture.loadBitmap(Texture.java:23)at net.xernia.bluehero.graphics.Texture.<clinit>(Texture.java:11)... 5 moreCaused by: java.lang.IllegalArgumentException: input == null!at java.desktop/javax.imageio.ImageIO.read(ImageIO.java:1356)at net.xernia.bluehero.graphics.Texture.loadBitmap(Texture.java:15)... 6 more
my project structure is as follows:
srcpackageTexture.javarestexturesfloor.png
I have under Properties->java build path added res as a class folder under modulepath. Sorry if this is a very trivial error to some of you, but it is confusing me to no end lol. Hope this is enough information, please let me know if there was something vital I left out
答案1
得分: 2
将文件夹 res 移动到 src，我们有：
srcpackageTexture.javarestexturesfloor.png
并将文件名更改为 /res/textures/floor.png。（不要忘记重新构建项目）
英文:
Move folder res to src, we have:
srcpackageTexture.javarestexturesfloor.png
and change file name to /res/textures/floor.png. (Don't forget rebuild project)
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