类装入和更新检测(Class loading and update detection settings)
菜单路径:Applications < Application Types < WebSphere enterprise applications < application_name < Class loading and update detection.
然后选上类重新装入选项的复选框: 覆盖 Web 和 EJB 模块的类重新装入设置(Override class reloading settings for Web and EJB modules)
启用定时重新加载类:设置对已更新文件进行轮询的时间间隔(Polling interval for updated files)为非0的值。默认值为3秒