Java Community | Help. Code. Learn.•4w ago

Figuring out path to resources in built jar

Im currently doing this to read my shader files:

Utils.readFile("src/main/resources/assets/base/shaders/scene.vert")

Utils.readFile("src/main/resources/assets/base/shaders/scene.vert")

and it works when just testing in intellij, but if i build the jar it no longer works as the src/main/resources part of the path doesnt exist. Any solutions?

4 Replies

JavaBot•4w ago

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dan1st•4w ago

You should access it as a resource insstead In a JAR, there is no src/main/resources You can do getClass().getClassLoader().getResource("assets/base/shaders/scene.vert")

𝓐pothiconOP•4w ago

alr im doing that now and it is getting the correct path however it gives a NoSuchFileException when i attempt to use that path to read the file can you not read files that are inside jars? i figured out a solution:

public static String readFile(String filePath) {
    List<String> file = new BufferedReader(new InputStreamReader(Utils.class.getClassLoader().getResourceAsStream(filePath))).lines().toList();
    StringBuilder data = new StringBuilder();
    for (String s : file) {
        data.append(s).append("\n");
    }
    return data.toString();
}

public static String readFile(String filePath) {
    List<String> file = new BufferedReader(new InputStreamReader(Utils.class.getClassLoader().getResourceAsStream(filePath))).lines().toList();
    StringBuilder data = new StringBuilder();
    for (String s : file) {
        data.append(s).append("\n");
    }
    return data.toString();
}

JavaBot•4w ago

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Figuring out path to resources in built jar