我有一个java文件,它使用jfreechart库,使用本地驱动器中的文本文件并显示图形。日食运行良好。但是,我想从cmd提示符下运行此命令,其他简单的Java文件能够通过cmd prmnt成功运行,但无法运行此文件。 PS:MyTool.java能够无误地编译并创建类文件,但无法运行。能够编译但无法从cmd运行Java与jar文件
1) This is how I am compiling it in cmd prompt: (gives 0 errors)
C:\Documents and Settings\hello.maga\workspace\MyTool\lib>javac -cp "gnujaxp.
jar;iText-2.1.5.jar;jcommon-1.0.16.jar;jfreechart-1.0.13.jar;jfreechart-1.0.13-e
xperimental.jar;jfreechart-1.0.13.jar;junit.jar;servlet.jar;swtgraphics2d.jar" MyTool.java
2) This is how I am running it:
C:\Documents and Settings\hello.maga\workspace\MyTool\lib>java -cp "gnujaxp.j
ar;iText-2.1.5.jar;jcommon-1.0.16.jar;jfreechart-1.0.13.jar;jfreechart-1.0.13-ex
perimental.jar;jfreechart-1.0.13.jar;junit.jar;servlet.jar;swtgraphics2d.jar" MyTool
Error for second command:
Exception in thread "main" java.lang.NoClassDefFoundError: MyTool
Caused by: java.lang.ClassNotFoundException: MyTool
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: MyTool. Program will exit.
我不明白的是,如果有任何错误,那么它不应该排在首位编译,可以有人教我。非常感谢你。