：windows环境上无法运行JAR包上的class文件_J2SE

求救：windows环境下无法运行JAR包下的class文件
F:\>java -cp MinaTest.jar com.sony.client.test.QzjTemp.class

Exception in thread "main" java.lang.NoClassDefFoundError: com/sany/client/test/

QzjTemp/class

Caused by: java.lang.ClassNotFoundException: com.sony.client.test.QzjTemp.class

        at java.net.URLClassLoader$1.run(URLClassLoader.java:200)

        at java.security.AccessController.doPrivileged(Native Method)

        at java.net.URLClassLoader.findClass(URLClassLoader.java:188)

        at java.lang.ClassLoader.loadClass(ClassLoader.java:307)

        at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)

        at java.lang.ClassLoader.loadClass(ClassLoader.java:252)

        at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:320)

Could not find the main class: com.sony.client.test.QzjTemp.class.  Program will

exit.

该class文件运行一个Main函数，弹出对话框
String path=JOptionPane.showInputDialog(null,"请输入路径:");
File file = new File(path);

执行java程序，不需要加.class的
改成
java -cp MinaTest.jar com.sony.client.test.QzjTemp
试试java -cp MinaTest.jar com.sony.client.test.QzjTemp