我不确定为什么我会收到npe
,我可以阅读src/main/resources
旁边的目录中的其他文件。
它是一个基于maven的项目,运行于eclipse。
任何想法?
Java ..
StringBuilder sb = new StringBuilder();
try {
InputStream is = ShaderControl.class.getResourceAsStream("fragmentShader.txt");
BufferedReader br = new BufferedReader(new InputStreamReader(is, "UTF-8"));
String line;
while ((line = br.readLine()) != null) {
sb.append(line);
sb.append('\n');
}
is.close();
} catch (Exception e) {
e.printStackTrace();
}
System.out.println("Shader is " + sb.toString());
控制台输出..
java.lang.NullPointerException
at java.io.Reader.<init>(Reader.java:90)
at java.io.InputStreamReader.<init>(InputStreamReader.java:119)
at justc0de.engine.tools.ShaderControl.loadShader(ShaderControl.java:36)
at justc0de.engine.ui.GameRenderer.init(GameRenderer.java:157)
at jogamp.opengl.GLDrawableHelper.init(GLDrawableHelper.java:640)
at jogamp.opengl.GLDrawableHelper.init(GLDrawableHelper.java:662)
at javax.media.opengl.awt.GLCanvas$9.run(GLCanvas.java:1366)
at jogamp.opengl.GLDrawableHelper.invokeGLImpl(GLDrawableHelper.java:1275)
at jogamp.opengl.GLDrawableHelper.invokeGL(GLDrawableHelper.java:1131)
at javax.media.opengl.awt.GLCanvas$11.run(GLCanvas.java:1394)
at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:314)
at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:750)
at java.awt.EventQueue.access$300(EventQueue.java:115)
at java.awt.EventQueue$3.run(EventQueue.java:711)
at java.awt.EventQueue$3.run(EventQueue.java:709)
at java.security.AccessController.doPrivileged(AccessController.java:311)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:88)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:720)
at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:254)
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:173)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:162)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:158)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:150)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:103)
Shader is
Program link error:
目录列表..
rob@work:~/git/justc0de$ ls src/main/resources/*.txt
src/main/resources/fragmentShader.txt src/main/resources/vertexShader.txt
答案 0 :(得分:1)
发现它应该是..
InputStream is = ShaderControl.class.getResourceAsStream("/fragmentShader.txt");