在java打包时候碰到点问题，帮帮忙大家
我的main-class文件绝对路径是E:\workplace\project\officeManage\classes\business\FTPServer.class
我执行的操作首先打普通包：jar   cvf   E:\workplace\project\officeManage\officeManage.jar   E:\workplace\project\officeManage\classes
然后把officeManage.jar解压到本目录，修改Manifest.mf文件，增加   ：     Main-Class:   classes\business\FTPServer
再重新打包：java   cvfm   E:\workplace\project\officeManage\officeManage.jar   E:\workplace\project\officeManage\META-INF\MANIFEST.MF   E:\workplace\project\officeManage\classes
但是这样做下来用java   -jar   E:\workplace\project\officeManage\officeManage.jar运行的时候报错
Exception       in       thread       "main "       java.lang.NoClassDefFoundError

------解决方案--------------------
Main-Class: classes\business\FTPServer

Main-Class不是这么写的，Main-Class:package1.package2.UrMainClass