“线程中的异常”；“主要”；java.lang.NoClassDefFoundError:javax/media/j3d/Canvas3D运行时错误

我正在制作一个项目，将

X3D

文件导入

Java

并显示它们。但是，当我运行它时，我会得到运行时错误

run:
Exception in thread "main" java.lang.NoClassDefFoundError: javax/media/j3d/Canvas3D
    at java.lang.ClassLoader.defineClass1(Native Method)
    at java.lang.ClassLoader.defineClass(ClassLoader.java:760)
    at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
    at java.net.URLClassLoader.defineClass(URLClassLoader.java:467)
    at java.net.URLClassLoader.access$100(URLClassLoader.java:73)
    at java.net.URLClassLoader$1.run(URLClassLoader.java:368)
    at java.net.URLClassLoader$1.run(URLClassLoader.java:362)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.net.URLClassLoader.findClass(URLClassLoader.java:361)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
    at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
    at org.web3d.j3d.browser.X3DJ3DBrowserFactoryImpl.createComponent(X3DJ3DBrowserFactoryImpl.java:358)
    at org.web3d.x3d.sai.BrowserFactory.createX3DComponent(BrowserFactory.java:263)
    at xj3dtest.Xj3DTest.<init>(Xj3DTest.java:42)
    at xj3dtest.Xj3DTest.main(Xj3DTest.java:56)
Caused by: java.lang.ClassNotFoundException: javax.media.j3d.Canvas3D
    at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
    at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
    ... 16 more

我拥有的

jar是：
gluegen-rt、gluegen-rt-natives-linux-amd64、gluegen-rt-natives-windows-amd64、gluegen-rt-natives-windows-i586、jhall、joal、joal-natives-linux-amd64、joalnatives-windows-amd64、gluegen-natives-windows-i586、jogluel-natives-linux-amd64、jogluel-natives-linux-amd64、jogluel-natives-windows-i586、，xj3d.browser_2.1.0-nps、xj3d.cadfilter_2.1.0-nps、xj3d.replica_2.1.0-nps、xj3d-2.1-3rdparty-nps、xj3d-2.1-nps、xj3d-core、xj3d-j3d
都位于名为
jar
的文件中。在
Jave项目的
Run
部分的
VM选项中，我有
-Xmx450M-Djava.library.path=“C:\Users\matt\Documents\NetBeansProjects\jar”

任何帮助都会很好。
javax/media/j3d/Canvas3D
应该是旧位置，更新您的
导入
@elect谢谢，但是现在我在线程“main”java.lang中遇到了错误
异常。不满意的链接错误：java.library.path中没有j3d。您应该将
j3d
的路径添加到您的路径中。可以通过在项目属性中添加选项来完成此操作IDE@elect我该怎么做呢？我打开了
项目属性
并运行
位。我添加了
-Xmx450M-Djava.library.path=“C:\Users\matt\Documents\NetBeansProjects\J3D-jar”
，正如我下载的
J3D-org-java3d-all.jar
一样，这是它保存的地方，带有
-Djava.library.path
。我认为你没有指出它想要什么。。。你已经查过了吗？
package xj3dtest;

import java.awt.BorderLayout;
import java.awt.Container;
import static java.lang.Boolean.TRUE;
import javax.swing.JFrame;
import org.web3d.x3d.sai.Browser;
import org.web3d.x3d.sai.BrowserFactory;
import org.web3d.x3d.sai.X3DComponent;
import org.web3d.x3d.sai.X3DScene;
import java.util.HashMap;

public class Xj3DTest extends JFrame {

    public Xj3DTest(String title) {

        super(title);

        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

        // Setup browser parameters
        HashMap requestedParameters=new HashMap();
        requestedParameters.put("Antialiased",TRUE);
        requestedParameters.put("TextureQuality","medium");
        requestedParameters.put("PrimitiveQuality","medium");
        requestedParameters.put("Xj3D_InterfaceType","SWING");
        requestedParameters.put("Xj3D_NavbarShown",TRUE);
        requestedParameters.put("Xj3D_NavbarPosition","TOP");
        requestedParameters.put("Xj3D_LocationShown",TRUE);
        requestedParameters.put("Xj3D_LocationPosition","TOP");
        requestedParameters.put("Xj3D_LocationReadOnly",TRUE);
        requestedParameters.put("Xj3D_ShowConsole",TRUE);
        requestedParameters.put("Xj3D_OpenButtonShown",TRUE);
        requestedParameters.put("Xj3D_ReloadButtonShown",TRUE);
        requestedParameters.put("Xj3D_StatusBarShown",TRUE);
        requestedParameters.put("Xj3D_FPSShown",TRUE);
        requestedParameters.put("Xj3D_ContentDirectory","CurrentDirectory");
        requestedParameters.put("Xj3D_AntialiasingQuality","low");
        requestedParameters.put("Xj3D_Culling_Mode", "frustum");

        System.setProperty("x3d.sai.factory.class", "org.web3d.j3d.browser.X3DJ3DBrowserFactoryImpl");
        X3DComponent x3dComponent = BrowserFactory.createX3DComponent(requestedParameters);

        Browser browser = x3dComponent.getBrowser();

        Container cp = getContentPane();
        cp.setLayout(new BorderLayout());
        cp.add((javax.swing.JPanel)x3dComponent, BorderLayout.CENTER);

        X3DScene scene = browser.createX3DFromURL(new String[] {"test.x3d"});

        browser.replaceWorld(scene);
    }

    public static void main(String[] args) {
        Xj3DTest frame = new Xj3DTest("Xj3D test");
        frame.setSize(640, 480);
        frame.setLocationRelativeTo(null);
        frame.setVisible(true);
    }
}