javaWeb FinalTest

package com.i.controller; import com.i.emtity.Goods; import com.i.emtity.PageBean; import com.i.service.GoodsService; import com.i.service.impl.GoodsServiceImpl; import javax.servlet.ServletException; import javax.servlet.annotation.WebServlet; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import javax.servlet.http.HttpSession; import java.io.IOException; import java.util.Map; @WebServlet("/goods") public class goodsController extends DispatcherServlet { GoodsService goodsService = new GoodsServiceImpl(); public void getGoodsList(HttpServletRequest request, HttpServletResponse response) throws IOException, ServletException { // 获得请求参数 Map<String, String[]> queryValues = request.getParameterMap(); // 获得当前页也每一页大小 String currentPage = request.getParameter("currentPage"); String pageSize = request.getParameter("pageSize"); // 判空 if(currentPage==null || currentPage.trim().length()==0){ currentPage="1"; } if(pageSize==null || pageSize.trim().length()==0){ pageSize="3"; } try { PageBean<Goods> pageBean = this.goodsService.getGoodsList(queryValues,Integer.parseInt(currentPage),Integer.parseInt(pageSize)); // 判断当前页 Integer currenP = pageBean.getCurrentPage(); // 响应数据 请求转发 request.setAttribute("pageBean",pageBean); // 查询数据 存储到request 域中 request.setAttribute("queryMap",queryValues); request.getRequestDispatcher("goodspage/goodslist.jsp").forward(request,response); } catch (Exception e) { request.getRequestDispatcher("goodspage/goodslist.jsp").forward(request,response); } } public void addGoods(HttpServletRequest request, HttpServletResponse response) throws IOException { String goodsId = request.getParameter("goodsId"); String goodsName = request.getParameter("goodsName"); String goodsPrice = request.getParameter("goodsPrice"); String goodsAmount = request.getParameter("goodsAmount"); Goods goods = new Goods(goodsId, goodsName, goodsPrice, goodsAmount); goodsService.addGoods(goods); } public void updateGoods(HttpServletRequest request, HttpServletResponse response) throws IOException { String id = request.getParameter("id"); String goodsId = request.getParameter("goodsId"); String goodsName = request.getParameter("goodsName"); String goodsPrice = request.getParameter("goodsPrice"); String goodsAmount = request.getParameter("goodsAmount"); Goods goods = new Goods(Integer.valueOf(id),goodsId, goodsName, goodsPrice, goodsAmount); goodsService.updateGoods(goods); response.sendRedirect(request.getContextPath()+"/goods?method=getGoodsList"); } public void selectOne(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { String id = request.getParameter("id"); Goods goods = goodsService.selectOne(id); request.setAttribute("dbGoods",goods); request.getRequestDispatcher("goodspage/updateGoods.jsp").forward(request,response); } public void deleteGoods(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { String[] id = request.getParameterValues("goodsids"); if(id==null || id.length==0){ response.sendRedirect(request.getContextPath()+"/goods?mothod=getGoodsList"); } goodsService.deleteSelectGoods(id); response.sendRedirect(request.getContextPath()+"/goods?mothod=getGoodsList"); } }