commons lang.jar for jasper reports.. used for jasper reporting purpose.. can be used for common functions.,commons lang.jar for jasper reports.. used for jasper reporting purpose.. can be used for common functions.

apache的工具包，包含stringutil等实用工具类-apache toolkit, including stringutil and other utility classes

commons-lang3-3.1-bin.zip 能实现各式各样的String、Date的处理，apache的开源项目。-commons-lang3-3.1-bin.zip to achieve a wide range of String, Date processing, apache open source project.