?
?@Override
?? ?protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
?? ??? ?//完成寻找子控制器的过程
?? ??? ?//浏览器：http://localhost:8080/t266_mvc/book.action?methodName=add
?? ??? ?//目标：BookAction.add()....
?? ??? ?/**
?? ??? ? * ?? ?思路：
?? ??? ? * ?? ?1.从浏览器URL中获取到"/book"字符串
?? ??? ? * ?? ?2.在子控制器中拿到BookAction
?? ??? ? * ?? ?3.BookAction.add()
?? ??? ? */
?? ??? ?StringBuffer uri = req.getRequestURL();
?? ??? ?uri.substring(uri.lastIndexOf("/"), uri.lastIndexOf("."));
//?? ??? ?action = BookAction
?? ??? ?ActionSupport action = actions.get(uri);
//?? ??? ?ActrionSupport action = new BookAction()
?? ??? ?action.execute(req, resp);
?? ?}