问题：eclipse&myeclipse 生成jar包后,spring无法扫描到bean定义
在使用getbean或者扫包时注入bean失败，但在IDE里是可以正常运行的？
原因：导出jar未将目录一起导出。
解决方法：将代码目录一起导出：一定要勾选 Add directory enttries
区别：
代码结构：
未勾选，导出内容为：
META-INF/MANIFEST.MF com/wang/util/DateStyle.class com/wang/util/PropertiesUtil$1.class com/wang/util/PropertiesUtil.class com/wang/util/Week.class com/wang/util/DateUtil.class com/wang/vo/request/hotel/test/PopularCityRequest.class com/wang/vo/request/hotel/test/EconomicsRequest.class com/wang/vo/request/hotel/test/HotelProductVouchRequest.class com/wang/vo/request/hotel/test/QueryOrderListRequest.class com/wang/vo/request/hotel/test/HotelListQueryRequest.class com/wang/vo/request/hotel/test/RoomReserveRequest.class com/wang/vo/request/hotel/test/HotelOneQueryRequest.class com/wang/vo/request/hotel/test/HotelBrandRequest.class
勾选，导出内容为：
META-INF/MANIFEST.MF com/ com/wang/ com/wang/util/ com/wang/util/DateStyle.class com/wang/util/PropertiesUtil$1.class com/wang/util/PropertiesUtil.class com/wang/util/Week.class com/wang/util/DateUtil.class com/wang/vo/ com/wang/vo/request/ com/wang/vo/request/hotel/ com/wang/vo/request/hotel/test/ com/wang/vo/request/hotel/test/PopularCityRequest.class com/wang/vo/request/hotel/test/EconomicsRequest.class com/wang/vo/request/hotel/test/HotelProductVouchRequest.class com/wang/vo/request/hotel/test/QueryOrderListRequest.class com/wang/vo/request/hotel/test/HotelListQueryRequest.class com/wang/vo/request/hotel/test/RoomReserveRequest.class com/wang/vo/request/hotel/test/HotelOneQueryRequest.class com/wang/vo/request/hotel/test/HotelBrandRequest.class