基于Java Web的随意购商城系统

提示：此项目仅供学习使用，不作为商品售卖，仅作为本博主的学习笔记记录，资源可找博主私聊

文章目录

前言

提示：这里可以添加本文要记录的大概内容：

本项目要求完成Java Web的开发环境准备，以及项目开发框架的搭建
Web开发环境准备，包括eclipse、MySQL、tomcat
Web项目框架搭建，涉及jsp、servlet、MVC等技术

运行网址：http://localhost:8080/eshop0/index.action

提示：以下是本篇文章正文内容，下面案例可供参考

Web端功能设计

首页

热销商品

新到商品

商品分类

商品详情

![在这里

购物车

添加地址

提交订单

部分代码展示

GoodsController中的搜索商品功能

//搜索商品elseif(url.equals("/goods/searchGoods.action")){String keyword=req.getParameter("keyword");String sort=req.getParameter("sort");List<Goods> searchGoods=newArrayList<Goods>();if(keyword!=null&&!keyword.equals("")){
                        searchGoods=GoodsService.searchGoodsByKeywords(keyword,sort);
                        req.setAttribute("goods", searchGoods);}
                    req.getRequestDispatcher("/goods/goods_list.jsp").forward(req, resp);}elseif(url.equals("/goods/deleteCart.action")){
            resp.setContentType("text/json; charset=utf-8");PrintWriter out = resp.getWriter();String index=req.getParameter("index");List<Goods> goodslist=newArrayList<Goods>();Object ob=req.getSession().getAttribute("goodslist");if(ob!=null&&index!=null){
                goodslist=(List<Goods>) ob;
                goodslist.remove(Integer.parseInt(index));}
            req.getSession().setAttribute("goodslist", goodslist);
            out.print("{\"success\":true,\"cartnum\":"+goodslist.size()+"}");}elseif(url.equals("/goods/clearCart.action")){
            resp.setContentType("text/json; charset=utf-8");PrintWriter out = resp.getWriter();
            req.getSession().removeAttribute("goodslist");
            out.print("{\"success\":true}");}elseif(url.equals("/goods/changeCart.action")){List<Goods> goodslist=newArrayList<Goods>();Object ob=req.getSession().getAttribute("goodslist");if(ob!=null){
                goodslist=(List<Goods>) ob;}
            resp.setContentType("text/json; charset=utf-8");PrintWriter out = resp.getWriter();String index=req.getParameter("index");String goodsSales=req.getParameter("goodsSales");float totalAmount=0;float totalPrice=0;if(ob!=null){for(int i=0;i<goodslist.size();i++){if(i==Integer.parseInt(index)){
                        goodslist.get(i).setGoodsSales(Integer.parseInt(goodsSales));
                        totalPrice=goodslist.get(i).getGoodsSales()*goodslist.get(i).getGoodsDiscount();}
                    totalAmount=totalAmount+goodslist.get(i).getGoodsSales()*goodslist.get(i).getGoodsDiscount();}}
    
            out.print("{\"success\":true,\"totalAmount\":"+totalAmount+",\"totalPrice\":"+totalPrice+"}");}elseif(url.equals("/goods/buyGoods.action")){ 
              req.setAttribute("catelist", catelist);User logu=(User)req.getSession().getAttribute("_LOGIN_USER_");if(logu!=null){//  List<Address> addresses=AddressService.getAllAddress(logu.getUserId()); //req.setAttribute("addrs",addresses);  } 
              req.getRequestDispatcher("/order/buyGoods.jsp").forward(req, resp);}

GoodsService中的搜索商品功能

//byzmhpublicstaticList<Goods>searchGoodsByKeywords(String name,String sort){// TODO Auto-generated method stubDBUtil1 db=newDBUtil1();// 连接数据库String sql="select * from t_goods where goods_name like ? ";if(sort!=null)if(sort.equals("1"))
                sql=sql+" order by goods_discount asc";elseif(sort.equals("2"))
              sql=sql+" order by goods_discount  desc";elseif(sort.equals("3"))
              sql=sql+" order by goods_sales desc";elseif(sort.equals("4"))
              sql=sql+" order by goods_sales asc";String params[]={"%"+name+"%"};List<Map<String,String>> goods_map=db.getList(sql,params);if(goods_map!=null)returnmaptomodel(goods_map);elsereturnnull;}

可能会出现的错误

如果拿到项目后发现图片不显示

1、找到项目中的代码，看一下是不是图片地址不对，对应地址【/images】下查看


2、检查是不是数据库连接问题
数据库连接工具 DBUtil.java

源码获取

点击此处转到源码地址：
基于Java Web的随意购商城系统

链接：https://pan.baidu.com/s/1x6rh_ethX3kcIobm8MzJ4w
提取码：fpg5