java – 无法加载Main-Class清单属性

发布时间：2020-12-15 08:38:39 所属栏目：Java 来源：网络整理

导读：从 eclipse导出后我有错误： C:Program FilesJavajre6binjava C:wampwwwJOGLtest.jarException in thread "main" java.lang.NoClassDefFoundError: C:wampwwwJOGLtest/jarCaused by: java.lang.ClassNotFoundException: C:wampwwwJOGLtest.j

从 eclipse导出后我有错误：

C:Program FilesJavajre6bin>java C:wampwwwJOGLtest.jar
Exception in thread "main" java.lang.NoClassDefFoundError: C:wampwwwJOGLtest/jar
Caused by: java.lang.ClassNotFoundException: C:wampwwwJOGLtest.jar
        at java.net.URLClassLoader$1.run(Unknown Source)
        at java.security.AccessController.doPrivileged(Native Method)
        at java.net.URLClassLoader.findClass(Unknown Source)
        at java.lang.ClassLoader.loadClass(Unknown Source)
        at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
        at java.lang.ClassLoader.loadClass(Unknown Source)
Could not find the main class: C:wampwwwJOGLtest.jar.  Program will exit.

从这个文件中显示：

Manifest-Version: 1.0
Sealed: true
Main-Class: windows.SimpleScene

使用Fat Jar导出时出现相同的错误

更新：

C:Program FilesJavajre6bin>java -jar C:wampwwwJOGLtest.jar
Exception in thread "main" java.lang.NoClassDefFoundError: javax/media/opengl/GLEventListener
        at java.lang.ClassLoader.defineClass1(Native Method)
        at java.lang.ClassLoader.defineClassCond(Unknown Source)
        at java.lang.ClassLoader.defineClass(Unknown Source)
        at java.security.SecureClassLoader.defineClass(Unknown Source)
        at java.net.URLClassLoader.defineClass(Unknown Source)
        at java.net.URLClassLoader.access$000(Unknown Source)
        at java.net.URLClassLoader$1.run(Unknown Source)
        at java.security.AccessController.doPrivileged(Native Method)
        at java.net.URLClassLoader.findClass(Unknown Source)
        at java.lang.ClassLoader.loadClass(Unknown Source)
        at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
        at java.lang.ClassLoader.loadClass(Unknown Source)
Caused by: java.lang.ClassNotFoundException: javax.media.opengl.GLEventListener
        at java.net.URLClassLoader$1.run(Unknown Source)
        at java.security.AccessController.doPrivileged(Native Method)
        at java.net.URLClassLoader.findClass(Unknown Source)
        at java.lang.ClassLoader.loadClass(Unknown Source)
        at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
        at java.lang.ClassLoader.loadClass(Unknown Source)
        ... 12 more
Could not find the main class: windows.SimpleScene. Program will exit.

解决方法

要运行jar文件,请运行：

java -jar (name-of-jar-file)

所以你应该运行：

java -jar C:wampwwwJOGLtest.jar

（编辑：李大同）

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