컨트롤러 BController.java package com.all.test01.controller; import javax.servlet.http.HttpServletRequest; import org.springframework.stereotype.Controller; import org.springframework.ui.Model; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RequestMethod; import com.all.test01.command.BCommand; import com.all.test01.command.BContentComma..