基于javaweb+mysql的jsp+servlet在线蛋糕商城系统(java+jsp+jdbc+mysql)
运行环境
Java≥8、MySQL≥5.7、Tomcat≥8
开发工具
eclipse/idea/myeclipse/sts等均可配置运行
适用
课程设计，大作业，毕业设计，项目练习，学习演示等
功能说明
基于javaweb+mysql的JSP+Servlet在线蛋糕商城系统(java+jsp+jdbc+mysql)
一、项目简述
功能： 主页显示热销商品；所有蛋糕商品展示，可进行商品搜 索；点击商品进入商品详情页，具有立即购买和加入购物 车功能，可增减购买商品数量亦可手动输入（同时验证库 存），热销商品展示。立即购买进入确认订单页面，可选择 已经添加的地址，亦可新增地址。（同时验证库存），可选 择购买哪些商品，可删除不需要的商品。点击结算进入确 认订单页面，确认后提交订单。后台管理：（修改密码 等），商品管理（商品批量添加、上下架等），订单管理。
二、项目运行
环境配置： Jdk1.8 + Tomcat8.5 + mysql + Eclispe （ IntelliJ IDEA,Eclispe,MyEclispe,Sts 都支持）
项目技术： JSP + C3P0+ Servlert + html+ css + JavaScript + JQuery + Ajax + Fileupload
} Type t=null; if(id!=0) { t=tService.selectTypeNameByID(id); } request.setAttribute("t",t); //List list=gService.selectGoodsByTypeID(id,1,8); //request.setAttribute("goodsList",list); if(pageNumber<=0) pageNumber=1; Page p=gService.selectPageByTypeID(id,pageNumber); if(p.getTotalPage()==0) { p.setTotalPage(1); p.setPageNumber(1); } else { if(pageNumber>=p.getTotalPage()+1) { p=gService.selectPageByTypeID(id,p.getTotalPage()); } } request.setAttribute("p",p); request.setAttribute("id",String.valueOf(id)); request.getRequestDispatcher("/goods_list.jsp").forward(request,response); }}package com.demo.servlet;@WebServlet(name = "admin_goods_list",urlPatterns = "/admin/goods_list")public class AdminGoodsListServlet extends HttpServlet { private GoodsService gService = new GoodsService(); protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { int type = 0;//推荐类型 if(request.getParameter("type") != null) { } private GoodsService gService = new GoodsService(); protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { String keyword = request.getParameter("keyword"); int pageNumber = 1; if(request.getParameter("pageNumber") != null) { try { pageNumber=Integer.parseInt(request.getParameter("pageNumber") ) ; } catch (Exception e) { } } if(pageNumber<=0) { pageNumber=1; } Page p =gService.getSearchGoodsPage(keyword,pageNumber); if(p.getTotalPage()==0) { p.setTotalPage(1); p.setPageNumber(1); } else { if(pageNumber>=p.getTotalPage()+1) { p =gService.getSearchGoodsPage(keyword,pageNumber); } } request.setAttribute("p", p); request.setAttribute("keyword", URLEncoder.encode(keyword,"utf-8")); request.getRequestDispatcher("/goods_search.jsp").forward(request, response); }}package com.demo.servlet; } } protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { // TODO Auto-generated method stub doGet(request, response); }}package com.demo.servlet;@WebServlet(name = "admin_goods_add",urlPatterns = "/admin/goods_add")public class AdminGoodsAddServlet extends HttpServlet { private GoodsService gService = new GoodsService(); protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { DiskFileItemFactory factory=new DiskFileItemFactory(); ServletFileUpload upload = new ServletFileUpload(factory); try { List<FileItem> list = upload.parseRequest(request); Goods g = new Goods(); for(FileItem item:list) { if(item.isFormField()) { String fieldName = item.getFieldName(); if("name".equals(fieldName)){ g.setName(item.getString("utf-8")); }else if("price".equals(fieldName)){ g.setPrice(Integer.parseInt(item.getString("utf-8")));@WebServlet(name = "user_register",urlPatterns = "/user_rigister")public class UserRegisterServlet extends HttpServlet { private UserService uService = new UserService(); protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { User user = new User(); try { BeanUtils.copyProperties(user, request.getParameterMap()); } catch (IllegalAccessException e) { // TODO Auto-generated catch block e.printStackTrace(); } catch (InvocationTargetException e) { // TODO Auto-generated catch block e.printStackTrace(); } if(uService.register(user)) { request.setAttribute("msg", "注册成功，请登录！"); request.getRequestDispatcher("user_login.jsp").forward(request, response); }else { request.setAttribute("msg", "用户名或邮箱重复，请重新填写！"); request.getRequestDispatcher("user_register.jsp").forward(request, response); } } protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { }}package com.demo.servlet; request.setAttribute("p", p); request.getRequestDispatcher("/admin/order_list.jsp").forward(request, response); }}package com.demo.servlet;@WebServlet(name = "goods_search",urlPatterns = "/goods_search")public class GoodsSearchServlet extends HttpServlet { protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { } private GoodsService gService = new GoodsService(); protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { String keyword = request.getParameter("keyword"); int pageNumber = 1; if(request.getParameter("pageNumber") != null) { try { pageNumber=Integer.parseInt(request.getParameter("pageNumber") ) ; } catch (Exception e) { } } if(pageNumber<=0) { pageNumber=1; } Page p =gService.getSearchGoodsPage(keyword,pageNumber); if(p.getTotalPage()==0) * @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response) */ protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { int id = Integer.parseInt(request.getParameter("id")); boolean isSuccess = uService.delete(id); if(isSuccess) { request.setAttribute("msg", "客户删除成功"); }else { request.setAttribute("failMsg", "客户有下的订单，请先删除该客户下的订单，再来删除客户！"); } request.getRequestDispatcher("/admin/user_list").forward(request, response); } protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { // TODO Auto-generated method stub doGet(request, response); }}package com.demo.servlet;@WebServlet(name = "user_changepwd",urlPatterns = "/user_changepwd")public class UserChangePwd extends HttpServlet { private UserService uService = new UserService(); protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { String password = request.getParameter("password"); String newPwd = request.getParameter("newPassword"); User u = (User) request.getSession().getAttribute("user");public class GoodsListServlet extends HttpServlet { private GoodsService gService=new GoodsService(); private TypeService tService=new TypeService(); protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { } protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { int id=0; if(request.getParameter("typeid")!=null) { id=Integer.parseInt(request.getParameter("typeid")); } int pageNumber=1; if(request.getParameter("pageNumber")!=null) { try { pageNumber=Integer.parseInt(request.getParameter("pageNumber")); } catch (Exception e) { } } Type t=null; if(id!=0) { t=tService.selectTypeNameByID(id); } request.setAttribute("t",t); //List list=gService.selectGoodsByTypeID(id,1,8); //request.setAttribute("goodsList",list); if(pageNumber<=0) pageNumber=1; Page p=gService.selectPageByTypeID(id,pageNumber); if(p.getTotalPage()==0) { p.setTotalPage(1); p.setPageNumber(1); } else { if(pageNumber>=p.getTotalPage()+1) { p=gService.selectPageByTypeID(id,p.getTotalPage()); } * @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response) */ protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { int type = 0;//推荐类型 if(request.getParameter("type") != null) { type=Integer.parseInt(request.getParameter("type") ) ; } int pageNumber = 1; if(request.getParameter("pageNumber") != null) { try { pageNumber=Integer.parseInt(request.getParameter("pageNumber") ) ; } catch (Exception e) { } } if(pageNumber<=0) pageNumber=1; Page p = gService.getGoodsRecommendPage(type, pageNumber); if(p.getTotalPage()==0) { p.setTotalPage(1); p.setPageNumber(1); } else { if(pageNumber>=p.getTotalPage()+1) { p = gService.getGoodsRecommendPage(type, pageNumber); } } request.setAttribute("p", p); request.setAttribute("type", type); request.getRequestDispatcher("/admin/goods_list.jsp").forward(request, response); } protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { // TODO Auto-generated method stub doGet(request, response); }}package com.demo.servlet;public class GoodsListServlet extends HttpServlet { private GoodsService gService=new GoodsService(); private TypeService tService=new TypeService(); protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { } protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { int id=0; if(request.getParameter("typeid")!=null) { id=Integer.parseInt(request.getParameter("typeid")); } int pageNumber=1; if(request.getParameter("pageNumber")!=null) { try { pageNumber=Integer.parseInt(request.getParameter("pageNumber")); } catch (Exception e) { } } Type t=null; if(id!=0) { t=tService.selectTypeNameByID(id); } request.setAttribute("t",t); //List list=gService.selectGoodsByTypeID(id,1,8); //request.setAttribute("goodsList",list); if(pageNumber<=0) pageNumber=1; Page p=gService.selectPageByTypeID(id,pageNumber); if(p.getTotalPage()==0) { p.setTotalPage(1); p.setPageNumber(1); } else { if(pageNumber>=p.getTotalPage()+1) String ue = request.getParameter("ue"); String password = request.getParameter("password"); User user = uService.login(ue, password); if(user==null) { request.setAttribute("failMsg", "用户名、邮箱或者密码错误，请重新登录！"); request.getRequestDispatcher("/user_login.jsp").forward(request, response); }else { request.getSession().setAttribute("user", user); if(user.isIsadmin()) { request.getRequestDispatcher("/admin/index.jsp").forward(request, response); }else { response.sendRedirect("/"); } } } protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { }}package com.demo.servlet;@WebServlet(name = "admin_type_edit",urlPatterns = "/admin/type_edit")public class AdminTypeEditServlet extends HttpServlet { private TypeService tService = new TypeService(); protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { Type t = new Type(); try { BeanUtils.copyProperties(t, request.getParameterMap()); } catch (Exception e) { // TODO Auto-generated catch block e.printStackTrace(); }@WebServlet(name = "order_confirm",urlPatterns = "/order_confirm")public class OrderConfirmServlet extends HttpServlet { private OrderService oService = new OrderService(); protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { Order o = (Order) request.getSession().getAttribute("order"); try { BeanUtils.copyProperties(o, request.getParameterMap()); } catch (IllegalAccessException e) { // TODO Auto-generated catch block e.printStackTrace(); } catch (InvocationTargetException e) { // TODO Auto-generated catch block e.printStackTrace(); } o.setDatetime(new Date()); o.setStatus(2); o.setUser((User) request.getSession().getAttribute("user")); oService.addOrder(o); request.getSession().removeAttribute("order"); request.setAttribute("msg", "订单支付成功！"); request.getRequestDispatcher("/order_success.jsp").forward(request, response); } protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { }}package com.demo.servlet;@WebServlet(name = "admin_goods_add",urlPatterns = "/admin/goods_add")public class AdminGoodsAddServlet extends HttpServlet { private GoodsService gService = new GoodsService(); protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { DiskFileItemFactory factory=new DiskFileItemFactory(); ServletFileUpload upload = new ServletFileUpload(factory); try { List<FileItem> list = upload.parseRequest(request); Goods g = new Goods(); for(FileItem item:list) { if(item.isFormField()) { String fieldName = item.getFieldName(); if("name".equals(fieldName)){ g.setName(item.getString("utf-8")); }else if("price".equals(fieldName)){ g.setPrice(Integer.parseInt(item.getString("utf-8"))); }else if("intro".equals(fieldName)){ g.setIntro(item.getString("utf-8")); }else if("stock".equals(fieldName)){ g.setStock(Integer.parseInt(item.getString("utf-8"))); }else if("typeid".equals(fieldName)){ g.setTypeid(Integer.parseInt(item.getString("utf-8"))); e.printStackTrace(); } if(uService.register(user)) { request.setAttribute("msg", "注册成功，请登录！"); request.getRequestDispatcher("user_login.jsp").forward(request, response); }else { request.setAttribute("msg", "用户名或邮箱重复，请重新填写！"); request.getRequestDispatcher("user_register.jsp").forward(request, response); } } protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { }}package com.demo.servlet;@WebServlet(name = "admin_user_list",urlPatterns = "/admin/user_list")public class AdminUserListServlet extends HttpServlet { private UserService uService = new UserService(); protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { int pageNumber = 1; if(request.getParameter("pageNumber") != null) { try { pageNumber=Integer.parseInt(request.getParameter("pageNumber") ) ; } catch (Exception e) { } } if(pageNumber<=0) pageNumber=1; Page p = uService.getUserPage(pageNumber); if(p.getTotalPage()==0) { p.setTotalPage(1); p.setPageNumber(1);@WebServlet(name = "goodrecommendList",urlPatterns = "/goodsrecommend_list")public class GoodRecommendListServlet extends HttpServlet { private GoodsService gService = new GoodsService(); protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { int type = Integer.parseInt(request.getParameter("type") ) ; int pageNumber = 1; if(request.getParameter("pageNumber") != null) { try { pageNumber=Integer.parseInt(request.getParameter("pageNumber") ) ; } catch (Exception e) { } } if(pageNumber<=0) pageNumber=1; Page p = gService.getGoodsRecommendPage(type, pageNumber); if(p.getTotalPage()==0) { p.setTotalPage(1); p.setPageNumber(1); } else { if(pageNumber>=p.getTotalPage()+1) { p = gService.getGoodsRecommendPage(type, p.getTotalPage()); } } request.setAttribute("p", p); request.setAttribute("t", type); request.getRequestDispatcher("goodsrecommend_list.jsp").forward(request, response); }}package com.demo.servlet; int id=0; if(request.getParameter("typeid")!=null) { id=Integer.parseInt(request.getParameter("typeid")); } int pageNumber=1; if(request.getParameter("pageNumber")!=null) { try { pageNumber=Integer.parseInt(request.getParameter("pageNumber")); } catch (Exception e) { } } Type t=null; if(id!=0) { t=tService.selectTypeNameByID(id); } request.setAttribute("t",t); //List list=gService.selectGoodsByTypeID(id,1,8); //request.setAttribute("goodsList",list); if(pageNumber<=0) pageNumber=1; Page p=gService.selectPageByTypeID(id,pageNumber); if(p.getTotalPage()==0) { p.setTotalPage(1); p.setPageNumber(1); } else { if(pageNumber>=p.getTotalPage()+1) { p=gService.selectPageByTypeID(id,p.getTotalPage()); } } request.setAttribute("p",p); boolean isSuccess = uService.delete(id); if(isSuccess) { request.setAttribute("msg", "客户删除成功"); }else { request.setAttribute("failMsg", "客户有下的订单，请先删除该客户下的订单，再来删除客户！"); } request.getRequestDispatcher("/admin/user_list").forward(request, response); } protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { // TODO Auto-generated method stub doGet(request, response); }}package com.demo.servlet;@WebServlet(name = "user_changepwd",urlPatterns = "/user_changepwd")public class UserChangePwd extends HttpServlet { private UserService uService = new UserService(); protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { String password = request.getParameter("password"); String newPwd = request.getParameter("newPassword"); User u = (User) request.getSession().getAttribute("user"); if(password.equals(u.getPassword())) { u.setPassword(newPwd); uService.updatePwd(u); request.setAttribute("msg", "修改成功！"); request.getRequestDispatcher("/user_center.jsp").forward(request, response); }else { request.setAttribute("failMsg", "修改失败，原密码不正确，你再想想！"); request.getRequestDispatcher("/user_center.jsp").forward(request, response); }@WebListener()public class ApplicationListener implements ServletContextListener, HttpSessionListener, HttpSessionAttributeListener { TypeService tsService=new TypeService(); // Public constructor is required by com.demo.servlet spec public ApplicationListener() { } // ------------------------------------------------------- // ServletContextListener implementation // ------------------------------------------------------- public void contextInitialized(ServletContextEvent sce) { sce.getServletContext().setAttribute("typeList",tsService.GetAllType()); } public void contextDestroyed(ServletContextEvent sce) { } // ------------------------------------------------------- // HttpSessionListener implementation // ------------------------------------------------------- public void sessionCreated(HttpSessionEvent se) { } public void sessionDestroyed(HttpSessionEvent se) { } // ------------------------------------------------------- // HttpSessionAttributeListener implementation // ------------------------------------------------------- // ServletContextListener implementation // ------------------------------------------------------- public void contextInitialized(ServletContextEvent sce) { sce.getServletContext().setAttribute("typeList",tsService.GetAllType()); } public void contextDestroyed(ServletContextEvent sce) { } // ------------------------------------------------------- // HttpSessionListener implementation // ------------------------------------------------------- public void sessionCreated(HttpSessionEvent se) { } public void sessionDestroyed(HttpSessionEvent se) { } // ------------------------------------------------------- // HttpSessionAttributeListener implementation // ------------------------------------------------------- public void attributeAdded(HttpSessionBindingEvent sbe) { } while( (len=in.read(buffer))>0 ) { out.write(buffer); } in.close(); out.close(); //item.delete(); String fieldName = item.getFieldName(); if("cover".equals(fieldName)){ g.setCover("/picture"+fileName); } else if("image1".equals(fieldName)){ g.setImage1("/picture"+fileName); } else if("image2".equals(fieldName)){ g.setImage2("/picture"+fileName); } } } gService.update(g); request.getRequestDispatcher("/admin/goods_list?pageNumber="+pageNumber+"&type="+type).forward(request, response); } catch (FileUploadException e) { // TODO Auto-generated catch block e.printStackTrace(); } } protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { // TODO Auto-generated method stub doGet(request, response); }}package com.demo.servlet; public void attributeReplaced(HttpSessionBindingEvent sbe) { }}package com.demo.servlet;@WebServlet(name = "goods_List",urlPatterns = "/goods_list")public class GoodsListServlet extends HttpServlet { private GoodsService gService=new GoodsService(); private TypeService tService=new TypeService(); protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { } protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { int id=0; if(request.getParameter("typeid")!=null) { id=Integer.parseInt(request.getParameter("typeid")); } int pageNumber=1; if(request.getParameter("pageNumber")!=null) { try { pageNumber=Integer.parseInt(request.getParameter("pageNumber")); } catch (Exception e) int id=0; if(request.getParameter("typeid")!=null) { id=Integer.parseInt(request.getParameter("typeid")); } int pageNumber=1; if(request.getParameter("pageNumber")!=null) { try { pageNumber=Integer.parseInt(request.getParameter("pageNumber")); } catch (Exception e) { } } Type t=null; if(id!=0) { t=tService.selectTypeNameByID(id); } request.setAttribute("t",t); //List list=gService.selectGoodsByTypeID(id,1,8); //request.setAttribute("goodsList",list); if(pageNumber<=0) pageNumber=1; Page p=gService.selectPageByTypeID(id,pageNumber); if(p.getTotalPage()==0) { p.setTotalPage(1); p.setPageNumber(1); } else { if(pageNumber>=p.getTotalPage()+1) { p=gService.selectPageByTypeID(id,p.getTotalPage()); } } request.setAttribute("p",p); request.setAttribute("id",String.valueOf(id)); request.getRequestDispatcher("/goods_list.jsp").forward(request,response); }}package com.demo.servlet; p.setPageNumber(1); } else { if(pageNumber>=p.getTotalPage()+1) { p =gService.getSearchGoodsPage(keyword,pageNumber); } } request.setAttribute("p", p); request.setAttribute("keyword", URLEncoder.encode(keyword,"utf-8")); request.getRequestDispatcher("/goods_search.jsp").forward(request, response); }}package com.demo.servlet;@WebServlet(name = "order_confirm",urlPatterns = "/order_confirm")public class OrderConfirmServlet extends HttpServlet { private OrderService oService = new OrderService(); protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { Order o = (Order) request.getSession().getAttribute("order"); try { BeanUtils.copyProperties(o, request.getParameterMap()); } catch (IllegalAccessException e) { // TODO Auto-generated catch block e.printStackTrace(); } catch (InvocationTargetException e) { // TODO Auto-generated catch block e.printStackTrace(); } o.setDatetime(new Date()); o.setStatus(2); o.setUser((User) request.getSession().getAttribute("user")); oService.addOrder(o); request.getSession().removeAttribute("order"); }else if("stock".equals(fieldName)){ g.setStock(Integer.parseInt(item.getString("utf-8"))); }else if("typeid".equals(fieldName)){ g.setTypeid(Integer.parseInt(item.getString("utf-8"))); } }else { if(item.getInputStream().available()<=0)continue; String fileName = item.getName(); fileName = fileName.substring(fileName.lastIndexOf(".")); fileName = "/"+new Date().getTime()+fileName; String path = this.getServletContext().getRealPath("/picture")+fileName; InputStream in = item.getInputStream(); FileOutputStream out = new FileOutputStream(path); byte[] buffer = new byte[1024]; int len=0; while( (len=in.read(buffer))>0 ) { out.write(buffer); } in.close(); out.close(); //item.delete(); String fieldName = item.getFieldName(); if("cover".equals(fieldName)){ g.setCover("/picture"+fileName); } else if("image1".equals(fieldName)){ g.setImage1("/picture"+fileName); } else if("image2".equals(fieldName)){ g.setImage2("/picture"+fileName); } } } gService.insert(g); request.getRequestDispatcher("/admin/goods_list").forward(request, response); } catch (FileUploadException e) { // TODO Auto-generated catch block e.printStackTrace(); } } protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { // TODO Auto-generated method stub doGet(request, response); }}package com.demo.common.listener; request.getSession().removeAttribute("order"); request.setAttribute("msg", "订单支付成功！"); request.getRequestDispatcher("/order_success.jsp").forward(request, response); } protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { }}package com.demo.servlet;@WebServlet(name = "user_register",urlPatterns = "/user_rigister")public class UserRegisterServlet extends HttpServlet { private UserService uService = new UserService(); protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { User user = new User(); try { BeanUtils.copyProperties(user, request.getParameterMap()); } catch (IllegalAccessException e) { // TODO Auto-generated catch block e.printStackTrace(); } catch (InvocationTargetException e) { // TODO Auto-generated catch block e.printStackTrace(); } if(uService.register(user)) { request.setAttribute("msg", "注册成功，请登录！"); request.getRequestDispatcher("user_login.jsp").forward(request, response); }else { request.setAttribute("msg", "用户名或邮箱重复，请重新填写！"); */ } public void attributeReplaced(HttpSessionBindingEvent sbe) { }}package com.demo.servlet;@WebServlet(name = "goods_List",urlPatterns = "/goods_list")public class GoodsListServlet extends HttpServlet { private GoodsService gService=new GoodsService(); private TypeService tService=new TypeService(); protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { } protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { int id=0; if(request.getParameter("typeid")!=null) { id=Integer.parseInt(request.getParameter("typeid")); } int pageNumber=1; if(request.getParameter("pageNumber")!=null) { try { protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { }}package com.demo.servlet;@WebServlet(name = "user_login",urlPatterns = "/user_login")public class UserLoginServlet extends HttpServlet { private UserService uService = new UserService(); protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { String ue = request.getParameter("ue"); String password = request.getParameter("password"); User user = uService.login(ue, password); if(user==null) { request.setAttribute("failMsg", "用户名、邮箱或者密码错误，请重新登录！"); request.getRequestDispatcher("/user_login.jsp").forward(request, response); }else { request.getSession().setAttribute("user", user); if(user.isIsadmin()) { request.getRequestDispatcher("/admin/index.jsp").forward(request, response); }else { response.sendRedirect("/"); } } } protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { }}package com.demo.servlet;@WebServlet(name = "admin_goods_recommend",urlPatterns = "/admin/goods_recommend")public class AdminGoodsRecommendServlet extends HttpServlet { private GoodsService gService = new GoodsService(); protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { int id = Integer.parseInt(request.getParameter("id")); String method = request.getParameter("method"); int typeTarget=Integer.parseInt(request.getParameter("typeTarget")); if(method.equals("add")) { gService.addRecommend(id, typeTarget); }else { gService.removeRecommend(id, typeTarget); } request.getRequestDispatcher("/admin/goods_list").forward(request, response); } protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { // TODO Auto-generated method stub doGet(request, response); }}package com.demo.servlet;@WebServlet(name = "admin_user_delete",urlPatterns = "/admin/user_delete")
来源地址：https://blog.csdn.net/m0_71414463/article/details/131859124
