高级课程文档常智多1 mybatisday012 jspservlet回顾

1、 创建 javaweb 项目生成web.xml二 关 联 tomcat三 运行 web 项目四 关于 servelt 引用五 实战1视图层（view）index.jsplist.jspadd.jsp2控制层（controller）FlowerServlet.javaWebServlet(/flowerServlet)public class FlowerServlet extends HttpServlet private static final long serialVersionUID = 1L;public FlowerServlet() protected void doGet(Ht

2、tpServletRequest request, HttpServletResponse response) throws ServletException, IOException/解决乱码request.setCharacterEncoding(UTF-8); response.setCharacterEncoding(UTF-8);response.setContentType(text/html;charset=UTF-8);/服务层FlowerService flowerService = new FlowerService();/接收操作类型参数String type = req

3、uest.getParameter(type);if(toAdd.equals(type) /转发至jsprequest.getRequestDispatcher(add.jsp).forward(request, response);else if(save.equals(type) /保存花卉saveFlower(request, response, flowerService);else if(list.equals(type) /查询列表List flowerList =flowerService.selectAll();/添加至作用域request.setAttribute(flow

4、erList,flowerList);request.getRequestDispatcher(list.jsp).forward(request, response);/* 保存花卉* param request* param response* param flowerService* throws ServletException* throws IOException*/private void saveFlower(HttpServletRequest request, HttpServletResponse response, FlowerService flowerService

5、)throws ServletException, IOException /保存String fName = request.getParameter(fName); String fAddr = request.getParameter(fAddr);String fCreateTime = request.getParameter(fCreateTime);/创建flower对象Flower flower=null; try flower = new Flower(fName, fAddr,DateUtil.str2Date(fCreateTime, yyyy-MM-dd HH:mm:s

6、s); catch (ParseException e) System.out.println(时期转换错误：+e.getMessage();int res = flowerService.saveFlower(flower);if(1=res) /转发至列表页/response.sendRedirect(list.jsp);说明：提炼方法快捷键：alt+shift+m3model 层service+dao+entityrequest.getRequestDispatcher(request.getContextPath()+/flower Servlet?type=list).forward(request, response);protected void doPost(HttpServletRequest re