基于javaweb+JSP+Servlet简单购物车

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

 public String getAddress() {return address;}public void setAddress(String address) {this.address = address;}}
package entity;public class Cart {private String goodsname;

public void setData(String sql) {Statement stm = null;try {stm = con.createStatement();stm.executeUpdate(sql);System.out.println(" setData！！！");} catch (SQLException e) {System.out.println("SQLException!!!");e.printStackTrace();} finally {if (stm != null) {try {

    <a href="register.jsp">注册</a><%} %><hr><table border="1"><tr><th>序号</th><th>商品</th><th>价格</th><th>操作</th></tr><%for(int i=1;i<=goods.size();i++){Goods g=goods.get(i-1);%>

<a href="<%=request.getContextPath()%>/generate.order">生成订单</a> <a href="<%=request.getContextPath()%>/show.cart");">返回</a>
</body>
</html>
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<% String msg=(String)request.getAttribute("msg"); %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html><head><title>用户注册</title><!--<link rel="stylesheet" type="text/css" href="styles.css">--></head><body><h1>用户注册</h1><hr/><form action="<%=request.getContextPath()%>/register.user" method="post"><table><tr><td>用户名:</td><td><input type="text" name="username">

     User u=(User)req.getSession().getAttribute("user");if(u==null) {resp.sendRedirect(req.getContextPath()+"/login.jsp");return;}String tag = req.getParameter("tag");if("AddCart".equals(tag)) {String index=req.getParameter("index");resp.sendRedirect(req.getContextPath()+"/add.cart?index="+index);}else{resp.sendRedirect(req.getContextPath()+"/show.cart");}}
}
package mysql;import java.sql.*;

     resp.setContentType("text/html;charset=utf-8");req.setCharacterEncoding("utf-8");resp.setCharacterEncoding("utf-8");if("/confirm.order".equals(path)){confirm(req,resp);}if("/generate.order".equals(path)){generate(req,resp);}if("/showOrders.order".equals(path)){showOrders(req,resp);}if("/detail.order".equals(path)){detail(req,resp);}

 //总计
Double sum=0.0;
for(Order o:order){sum+=o.getPrice();
}%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
</head>
<body>
<h1>我的订单</h1>
<hr>
<%=order.get(0).getUsername() %>用户<%=order.get(0).getId() %>订单
<hr>
<table border="1">

 public void setUsername(String username) {this.username = username;}public String getPassword() {return password;}public void setPassword(String password) {this.password = password;}public String getPhone() {return phone;}public void setPhone(String phone) {this.phone = phone;}public User() {

         if(rs!=null) {try {rs.close();} catch (SQLException e) {// TODO Auto-generated catch blocke.printStackTrace();}}}db.close();}protected void show(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {User u=(User)req.getSession().getAttribute("user");

 protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {String path = req.getServletPath();resp.setContentType("text/html;charset=utf-8");req.setCharacterEncoding("utf-8");resp.setCharacterEncoding("utf-8");if("/logout.user".equals(path)){logout(req,resp);}if("/check.user".equals(path)){check(req,resp);}}protected void register(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {String username=req.getParameter("username");String password=req.getParameter("password");String phone=req.getParameter("phone");String address=req.getParameter("address");DataBase db=new DataBase();ResultSet rs = db.getData("SELECT * FROM t_user where un='"+username+"'");try {

        try {stm = con.createStatement();ResultSet result = stm.executeQuery(sql);System.out.println("getData！！！");return result;} catch (SQLException e) {System.out.println("SQLException!!!");e.printStackTrace();return null;}}public void setData(String sql) {Statement stm = null;try {stm = con.createStatement();stm.executeUpdate(sql);System.out.println(" setData！！！");} catch (SQLException e) {System.out.println("SQLException!!!");e.printStackTrace();} finally {if (stm != null) {try {

运行环境

Java≥8、Tomcat≥8.0、MySQL≥5.7

开发工具

eclipse/idea/myeclipse/sts等均可配置运行

技术框架

JSP Servlet MySQL JDBC Tomcat

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

商品加入购物车，查看购物车，删除购物车中的商品和清空购物车

生成订单，查看历史订单及订单详情等

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