继续开发网上购物商城

用户登录
显示用户订单
订单表的设计
发送电子邮件javaMail
购物流程设计

通过订单细节表，把订单表和商品表的多对多的关系，简化为一对多的关系，从而解决了数据冗余的问题。

完整的网上购物商城源码如下：

JSP部分

head.jsp

<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%><!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html><head><base href="<%=basePath%>"><title>My JSP 'index.jsp' starting page</title><meta http-equiv="pragma" content="no-cache"><meta http-equiv="cache-control" content="no-cache"><meta http-equiv="expires" content="0">    <meta http-equiv="keywords" content="keyword1,keyword2,keyword3"><meta http-equiv="description" content="This is my page"><link rel="stylesheet" type="text/css" href="mycss/Untitled-3.css"></head><body><table width="80%" border="0.5" align="center"><tr><td height="117" colspan="2" align="center"><jsp:include flush="true" page="head.jsp"></jsp:include></td></tr><tr><td width="21%" height="198"><jsp:include flush="true" page="left.jsp"></jsp:include></td><td width="74%"><jsp:include flush="true" page="right.jsp"></jsp:include></td></tr><tr><td height="121" colspan="2" align="center"><jsp:include flush="true" page="tail.jsp"></jsp:include></td></tr>
</table></body>
</html>

head.jsp

<%@ page language="java" import="java.util.*" pageEncoding="gb2312"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>
<table width="100%" border="0.5"><tr><td height="10" colspan="3" bgcolor="#FF9999"></td></tr><tr><td width="26%" align="center"><img src="data:images/logo5.jpg" width="183" height="53" align="middle" /></td><td width="40%" align="center" valign="middle"><img src="data:images/logo22.jpg" width="367" height="85" align="middle" /></td><td width="13%" align="center" valign="middle" bordercolor="#FFFFFF"><p><img src="data:images/logo1.jpg" width="30" height="29" align="top" />【我的账号】</p><p><img src="data:images/logo12.jpg" width="32" height="28" /><a href="ShoppingClServlet?type=show">【我的购物车】</a></p></td></tr><tr><td height="10" colspan="3" bgcolor="#FF99FF"></td></tr><tr><td colspan="3"><table width="100%" border="0.5" align="center"><tr><td width="15%" align="center" class="navi">首页</td><td width="13%" align="center">&nbsp;</td><td width="13%" align="center" class="navi">香港电影</td><td width="13%" align="center">&nbsp;</td><td width="13%" align="center" class="navi">大陆电影</td><td width="10%" align="center">&nbsp;</td><td width="11%" align="center" class="navi">关于我们</td><td width="12%" align="center">&nbsp;</td></tr></table></td></tr>
</table>

tail.jsp

<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%><table width="100%" border="0" align="center"><tr><td align="center" bgcolor="#FF6699" class="abc">合作伙伴：搜狐 网易 腾讯 新浪</td></tr><tr><td align="center" class="abc">地址：湖北省十堰市 客户热线：400-820-8820</td></tr><tr><td align="center" class="abc">邮编：100000 客服邮箱：fashionshopping@sina.com</td></tr><tr><td align="center" class="abc">Copyright 天马星空科技有限公司</td></tr>
</table>

left.jsp

<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>
<table width="100%" border="0.5" align="center"><tr><td align="center" valign="middle"><table width="100%" border="0.5"><tr><td align="center"><img src="data:images/9.jpg" width="276" height="50" /></td></tr><tr><td align="center">滚动的图片</td></tr></table></td></tr><tr><td valign="middle" bgcolor="#FF66FF">&nbsp;</td></tr><tr><td valign="middle"><table width="100%" border="0.5"><tr><td colspan="3" align="center"><img src="data:images/logo23.jpg" width="190" height="75" /></td></tr><tr><td align="center" class="abc">销量榜</td><td align="center" class="abc">商品名称</td><td align="center" class="abc">点击次数</td></tr><tr><td align="center" class="abc">1</td><td align="center" class="abc"><a href="head.html">倚天屠龙记</a></td><td align="center" class="abc">55</td></tr><tr><td align="center" class="abc">2</td><td align="center" class="abc">西游记</td><td align="center" class="abc">11</td></tr><tr><td align="center" class="abc">3</td><td align="center" class="abc">笑傲江湖</td><td align="center" class="abc">5</td></tr><tr><td align="center" class="abc">4</td><td align="center" class="abc">西厢记</td><td align="center" class="abc">4</td></tr><tr><td align="center" class="abc">5</td><td align="center" class="abc">红楼梦</td><td align="center" class="abc">3</td></tr><tr><td align="center" class="abc">6</td><td align="center" class="abc">水浒传</td><td align="center" class="abc">2</td></tr><tr><td align="center" class="abc">7</td><td align="center" class="abc">射雕英雄传</td><td align="center" class="abc">1</td></tr></table></td></tr>
</table>

right.jsp

<%@ page language="java" import="java.util.*,com.tingwei.model.*" pageEncoding="utf-8"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";//使用GoodsBeanBO，完成分页（也可以先走servlet）
GoodsBeanBO gbb=new GoodsBeanBO();
String s_pageNow=(String)request.getAttribute("pageNow");
int pageSize=9;
int pageNow=1;
if(s_pageNow!=null)
{pageNow=Integer.parseInt(s_pageNow);
}
//默认显示第一页
ArrayList al=gbb.getGoodsByPage(pageSize,pageNow);
//得到总共有多少页
int pageCount=gbb.getPageCount(pageSize);
%>
<table width="80%" border="0.5" align="center"><tr valign="middle"><td colspan="3" align="center" class="abc"><img src="data:images/logo24.jpg" width="203" height="47" /></td></tr><tr><td width="32%" align="center" valign="middle" class="abc"><p><img src="data:images/<%=((GoodsBean)al.get(0)).getPhoto() %>" width="100" height="100" /></p><a href="ShowGoodsClServlet?type=showItem&id=<%=((GoodsBean)al.get(0)).getGoodsId() %>"><%=((GoodsBean)al.get(0)).getGoodsName() %></a></td><td width="30%" align="center" class="abc"><p><img src="data:images/<%=((GoodsBean)al.get(1)).getPhoto() %>" width="100" height="100" /></p><a href="ShowGoodsClServlet?type=showItem&id=<%=((GoodsBean)al.get(1)).getGoodsId() %>"><%=((GoodsBean)al.get(1)).getGoodsName() %></a></td><td width="38%" align="center" class="abc"><p><img src="data:images/<%=((GoodsBean)al.get(2)).getPhoto() %>" width="100" height="100" /></p><a href="ShowGoodsClServlet?type=showItem&id=<%=((GoodsBean)al.get(2)).getGoodsId() %>"><%=((GoodsBean)al.get(2)).getGoodsName() %></a></td></tr><tr><td width="32%" align="center" valign="middle" class="abc"><p><img src="data:images/<%=((GoodsBean)al.get(3)).getPhoto() %>" width="100" height="100" /></p><a href="ShowGoodsClServlet?type=showItem&id=<%=((GoodsBean)al.get(3)).getGoodsId() %>"><%=((GoodsBean)al.get(3)).getGoodsName() %></a></td><td width="30%" align="center" class="abc"><p><img src="data:images/<%=((GoodsBean)al.get(4)).getPhoto() %>" width="100" height="100" /></p><a href="ShowGoodsClServlet?type=showItem&id=<%=((GoodsBean)al.get(4)).getGoodsId() %>"><%=((GoodsBean)al.get(4)).getGoodsName() %></a></td><td width="38%" align="center" class="abc"><p><img src="data:images/<%=((GoodsBean)al.get(5)).getPhoto() %>" width="100" height="100" /></p><a href="ShowGoodsClServlet?type=showItem&id=<%=((GoodsBean)al.get(5)).getGoodsId() %>"><%=((GoodsBean)al.get(5)).getGoodsName() %></a></td></tr><tr><td width="32%" align="center" valign="middle" class="abc"><p><img src="data:images/<%=((GoodsBean)al.get(6)).getPhoto() %>" width="100" height="100" /></p><a href="ShowGoodsClServlet?type=showItem&id=<%=((GoodsBean)al.get(6)).getGoodsId() %>"><%=((GoodsBean)al.get(6)).getGoodsName() %></a></td><td width="30%" align="center" class="abc"><p><img src="data:images/<%=((GoodsBean)al.get(7)).getPhoto() %>" width="100" height="100" /></p><a href="ShowGoodsClServlet?type=showItem&id=<%=((GoodsBean)al.get(7)).getGoodsId() %>"><%=((GoodsBean)al.get(7)).getGoodsName() %></a></td><td width="38%" align="center" class="abc"><p><img src="data:images/<%=((GoodsBean)al.get(8)).getPhoto() %>" width="100" height="100" /></p><a href="ShowGoodsClServlet?type=showItem&id=<%=((GoodsBean)al.get(8)).getGoodsId() %>"><%=((GoodsBean)al.get(8)).getGoodsName() %></a></td></tr>
<tr>
<td colspan="3" align="center">
<%if(pageNow!=1){%><a href="ShowGoodsClServlet?type=fenye&pageNow=<%=pageNow-1%>">上一页</a>&nbsp;<%}%><%  for(int i=1;i<=pageCount;i++){%><a href="ShowGoodsClServlet?type=fenye&pageNow=<%=i %>">[<%=i %>]</a><% }%><%if(pageNow!=pageCount){%><a href="ShowGoodsClServlet?type=fenye&pageNow=<%=pageNow+1%>">下一页</a>&nbsp;<%}%>
</td>
</tr>
</table>

showItem.jsp

<%@ page language="java" import="java.util.*,com.tingwei.model.*" pageEncoding="utf-8"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
//取出要显示的信息
GoodsBean gb=(GoodsBean)request.getAttribute("goodsInfo");
%><!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html><head><base href="<%=basePath%>"><title>My JSP 'showItem.jsp' starting page</title><meta http-equiv="pragma" content="no-cache"><meta http-equiv="cache-control" content="no-cache"><meta http-equiv="expires" content="0">    <meta http-equiv="keywords" content="keyword1,keyword2,keyword3"><meta http-equiv="description" content="This is my page"><link rel="stylesheet" type="text/css" href="mycss/Untitled-3.css"><script type="text/javascript">//响应返回购物大厅事件function returnHall(){window.open("index.jsp","_self");}//响应点击购买货物的事件，用此函数检测window.alert(goodsId);function addGoods(goodsId){window.open("ShoppingClServlet?type=addGoods&goodsId="+goodsId,"_self");}</script></head><body><center><table width="80%" border=0 align="center"><tr><td align="center"><jsp:include flush="true" page="head.jsp"></jsp:include></td></tr><tr><td height="309" align="center"><table width="100%" border="1px"><tr><td colspan="2">&nbsp;</td></tr><tr><td width="25%" rowspan="7"><img src="data:images/<%=gb.getPhoto() %>" width="267" height="166" /></td><td align="center"><%=gb.getGoodsName() %></td></tr><tr><td align="left">价格：<%=gb.getGoodsPrice() %> </td></tr><tr><td align="left">&nbsp;</td></tr><tr><td align="left">ISBN:<%=gb.getGoodsId()%></td></tr><tr><td align="left">类型：<%=gb.getType() %></td></tr><tr><td align="left">出版商:<%=gb.getPublisher() %></td></tr><tr><td align="left">简介：<%=gb.getGoodsIntro() %></td></tr><tr><td colspan="2">&nbsp;</td></tr><tr><td height="43" colspan="2"><form id="form1" name="form1" method="post" action="返回购物大厅"><label><input type="button" name="Submit" onclick="addGoods(<%=gb.getGoodsId() %>);" value="购买" /></label><input type="button" name="Submit2" onclick="returnHall();" value="返回购物大厅" /></form></td></tr></table></td></tr><tr><td height="22" align="center"><jsp:include flush="true" page="tail.jsp"></jsp:include></td></tr>
</table></center></body>
</html>

showShoppingCar.jsp

<%@ page language="java" import="java.util.*,com.tingwei.model.*" pageEncoding="utf-8"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
//取出ArrayList里的购物信息
ArrayList al=(ArrayList)request.getAttribute("myCarInfo");
//从session中取出购物车
ShoppingBO sbo=(ShoppingBO)session.getAttribute("mycar");
%><!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html><head><base href="<%=basePath%>"><title>My JSP 'showShoppingCar.jsp' starting page</title><meta http-equiv="pragma" content="no-cache"><meta http-equiv="cache-control" content="no-cache"><meta http-equiv="expires" content="0">    <meta http-equiv="keywords" content="keyword1,keyword2,keyword3"><meta http-equiv="description" content="This is my page"><link rel="stylesheet" type="text/css" href="mycss/Untitled-3.css"><script type="text/javascript">function delAll(){window.open("ShoppingClServlet?type=delAll","-self");}</script></head><body><center><table width="80%" border="1" align="center"><tr><td align="center"><jsp:include flush="true" page="head.jsp"></jsp:include></td></tr><tr><td align="center"><form action="ShoppingClServlet?type=updateGoods" method="post"><table width="100%" border="1"><tr><td colspan="6" align="center"><img src="data:images/logo3.jpg" width="756" height="66" align="middle" /></td></tr><tr><td width="29%" align="center" valign="middle">编号</td><td width="16%" align="center" valign="middle">书名</td><td width="16%" align="center" valign="middle">单价</td><td colspan="3" align="left" valign="middle">数量</td></tr><%for(int i=0;i<al.size();i++){GoodsBean gb=(GoodsBean)al.get(i);%><tr><td align="center" valign="middle"><%=gb.getGoodsId() %></td><td align="center" valign="middle"><%=gb.getGoodsName() %></td><td align="center" valign="middle">￥<%=gb.getGoodsPrice() %></td><td width="13%" ><input type="hidden" name="goodsId" value="<%=gb.getGoodsId() %>"/><input name="newNums" type="text" value="<%=sbo.getGoodsNumById(gb.getGoodsId()+"") %>" size="7"/>&nbsp;</td><td width="13%" ><a href="ShoppingClServlet?type=delGoods&goodsId=<%=gb.getGoodsId() %>">删除</a></td><td width="13%" ><a href="ShowGoodsClServlet?type=showItem&id=<%=gb.getGoodsId() %>">查看</a></td></tr><%}%><tr><td align="center" valign="middle">&nbsp;</td><td align="center" valign="middle"><input type="submit" name="Submit" onclick="delAll();" value="删除全部书籍" />  </td><td align="center" valign="middle">&nbsp;<input type="submit" name="Submit2" value="修改数量" /></td><td colspan="3" align="center" valign="middle">&nbsp;</td></tr><tr><td colspan="6" align="center" valign="middle">&nbsp;</td></tr></table></form><tr><td height="20" colspan="2" align="left" valign="middle">您共选择了价值￥<font color=red><%=sbo.getTotalPrice() %></font>的商品，点击<a href="index.jsp">此处</a>继续购物。</td><td height="20" colspan="4" align="right" valign="middle"><a href="IsLoginServlet"><img src="data:images/logo25.jpg" width="85" height="30" /></a></td></tr></table></td></tr><tr><td align="center"><jsp:include flush="true" page="tail.jsp"></jsp:include></td></tr>
</table>
</center></body>
</html>

userLogin.jsp
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%><!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html><head><base href="<%=basePath%>"><title>My JSP 'userLogin.jsp' starting page</title><meta http-equiv="pragma" content="no-cache"><meta http-equiv="cache-control" content="no-cache"><meta http-equiv="expires" content="0">    <meta http-equiv="keywords" content="keyword1,keyword2,keyword3"><meta http-equiv="description" content="This is my page"><link rel="stylesheet" type="text/css" href="mycss/Untitled-3.css"></head><body><center><table width="80%" border="1" align="center"><tr><td align="center"><jsp:include flush="true" page="head.jsp"></jsp:include>  </td></tr><tr><td align="center"><table width="100%" border="1"><tr><td align="center"><img src="data:images/logo3.jpg" width="756" height="66" /></td></tr><tr><td align="center"><form action="LoginDealServlet" method="post"><table width="40%" border="1" bordercolor="#6699CC"><tr><td colspan="2" align="center"><img src="data:images/logo26.jpg" width="212" height="55" /></td></tr><tr><td align="right">用户名：</td><td align="left"><input name="username" type="text" size="15" /></td></tr><tr><td align="right">密&nbsp;码：</td><td><input name="passwd" type="text" size="15" /></td></tr><tr><td align="right"><input type="submit" name="Submit" value="用户登录"/></td><td align="left"><input type="submit" name="Submit2" value="用户注册" /></td></tr></table></form></td></tr><tr><td align="right"><img src="data:images/logo25.jpg" width="85" height="30" /></td></tr></table></td></tr><tr><td align="center"><jsp:include flush="true" page="tail.jsp"></jsp:include></td></tr>
</table></center></body>
</html>

userInfo.jsp

<%@ page language="java" import="java.util.*,com.tingwei.model.*" pageEncoding="utf-8"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
UserBean ub=(UserBean)session.getAttribute("userInfo");
ArrayList al=(ArrayList)request.getAttribute("mycarInfo");
ShoppingBO sbo=(ShoppingBO)session.getAttribute("mycar");
%><!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html><head><base href="<%=basePath%>"><title>My JSP 'userInfo.jsp' starting page</title><meta http-equiv="pragma" content="no-cache"><meta http-equiv="cache-control" content="no-cache"><meta http-equiv="expires" content="0">    <meta http-equiv="keywords" content="keyword1,keyword2,keyword3"><meta http-equiv="description" content="This is my page"><link rel="stylesheet" type="text/css" href="mycss/Untitled-3.css"></head><body><center><table width="80%" border="1" align="center"><tr><td align="center"><jsp:include flush="true" page="head.jsp"></jsp:include></td></tr><tr><td align="center"><table width="100%" border="1"><tr><td align="center"><img src="data:images/logo3.jpg" width="756" height="66" /></td></tr><tr><td align="center"><table width="70%" border="1" class="abc"><tr><td colspan="2" align="center">购买人信息</td></tr><tr><td align="right">用户名：</td><td align="left"><input type="text" name="textfield" value="<%=ub.getUsername() %>"/></td></tr><tr><td align="right">*真实姓名</td><td align="left"><input type="text" name="textfield2" value="<%=ub.getTruename() %>"/></td></tr><tr><td align="right">*收获地址</td><td align="left"><input type="text" name="textfield3" value="<%=ub.getAddress() %>"/></td></tr><tr><td align="right">*联系电话</td><td align="left"><input type="text" name="textfield4" value="<%=ub.getPhone() %>"/></td></tr><tr><td align="right">*电子邮件</td><td align="left"><input type="text" name="textfield5" value="<%=ub.getEmail() %>"/></td></tr><tr><td align="right">*邮　　编</td><td align="left"><input type="text" name="textfield6" value="<%=ub.getPostcode() %>"/></td></tr><tr><td align="right"><form id="form1" name="form1" method="post" action=""><input type="submit" name="Submit" value="完成订单" /></form></td><td align="left"><input type="submit" name="Submit2" value="修改个人信息" /></td></tr></table></td></tr><tr><td align="center"><table width="70%" border="1"><tr><td colspan="4" align="center">我的购物车情况</td></tr><tr><td align="center">商品编号</td><td align="center">商品名称</td><td align="center">商品单价</td><td align="center">商品数量</td></tr><%for(int i=0;i<al.size();i++){GoodsBean gb=(GoodsBean)al.get(i);;%><tr><td align="center"><%=gb.getGoodsId() %></td><td align="center"><%=gb.getGoodsName() %></td><td align="center"><%=gb.getGoodsPrice() %></td><td align="center"><%=sbo.getGoodsNumById(gb.getGoodsId()+"") %></td></tr><% }%><tr><td colspan="4" align="center">您一共购买了价值￥<%=sbo.getTotalPrice() %>的商品</td></tr><tr><td colspan="4" align="center"><a href="showShoppingCar.jsp">返回购物车</a></td></tr></table></td></tr><tr><td align="right"><img src="data:images/logo27.jpg" width="85" height="31" /><a href="OrderServlet"><img border="0" src="data:images/logo25.jpg" width="85" height="30" /></a></td></tr></table></td></tr><tr><td align="center"><jsp:include flush="true" page="tail.jsp"></jsp:include></td></tr>
</table></center></body>
</html>

shoppingOrder.jsp

<%@ page language="java" import="java.util.*,com.tingwei.model.*" pageEncoding="utf-8"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
OrderInfoBean oib=(OrderInfoBean)request.getAttribute("orderInfo");
%><!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html><head><base href="<%=basePath%>"><title>My JSP 'shoppingOrder.jsp' starting page</title><meta http-equiv="pragma" content="no-cache"><meta http-equiv="cache-control" content="no-cache"><meta http-equiv="expires" content="0">    <meta http-equiv="keywords" content="keyword1,keyword2,keyword3"><meta http-equiv="description" content="This is my page"><link rel="stylesheet" type="text/css" href="mycss/Untitled-3.css"></head><body><center><table width="80%" border="1" align="center"><tr><td align="center"><jsp:include flush="true" page="head.jsp"></jsp:include></td></tr><tr><td align="center"><table width="100%" border="1"><tr><td colspan="9" align="center">图片</td></tr><tr><td colspan="9" align="center">订单详细信息</td></tr><tr><td align="center">订单号</td><td align="center">收货人</td><td align="center">收获地址</td><td align="center">邮编</td><td align="center">电话</td><td align="center">总价</td><td align="center">用户名</td><td align="center">电子邮件</td><td align="center">&nbsp;</td></tr><tr><td align="center"><%=oib.getOrdersId() %></td><td align="center"><%=oib.getTruename() %></td><td align="center"><%=oib.getAddress() %></td><td align="center"><%=oib.getPostcode() %></td><td align="center"><%=oib.getPhone() %></td><td align="center"><%=oib.getTotalPrice() %></td><td align="center"><%=oib.getUsername() %></td><td align="center"><%=oib.getEmail() %></td><td align="center"><a href="userInfo.jsp">查看详情</a></td></tr><tr><td colspan="9" align="center">您的订单已完成，稍后将将发送邮件给您，并确认订单信息。</td></tr></table></td></tr><tr><td height="17" align="center"><jsp:include flush="true" page="tail.jsp"></jsp:include></td></tr>
</table>
</center></body>
</html>

Java模型部分

ConnDB.java

package com.tingwei.model;
import java.sql.*;
public class ConnDB {private Connection ct=null;public Connection getConn(){try {Class.forName("com.microsoft.jdbc.sqlserver.SQLServerDriver");String url="jdbc:microsoft:sqlserver://127.0.0.1:1433;databaseName=testdb";String user="sa";String pass="tingwei";ct=DriverManager.getConnection(url,user,pass);} catch (Exception e) {// TODO: handle exceptione.printStackTrace();}return ct;}
}

GoodsBean.java

package com.tingwei.model;public class GoodsBean {private long goodsId;private String goodsName;private String goodsIntro;private float goodsPrice;private int goodsNum;private String publisher;private String photo;private String type;public long getGoodsId() {return goodsId;}public void setGoodsId(long goodsId) {this.goodsId = goodsId;}public String getGoodsIntro() {return goodsIntro;}public void setGoodsIntro(String goodsIntro) {this.goodsIntro = goodsIntro;}public String getGoodsName() {return goodsName;}public void setGoodsName(String goodsName) {this.goodsName = goodsName;}public float getGoodsPrice() {return goodsPrice;}public void setGoodsPrice(float goodsPrice) {this.goodsPrice = goodsPrice;}public String getPhoto() {return photo;}public void setPhoto(String photo) {this.photo = photo;}public String getPublisher() {return publisher;}public void setPublisher(String publisher) {this.publisher = publisher;}public String getType() {return type;}public void setType(String type) {this.type = type;}public int getGoodsNum() {return goodsNum;}public void setGoodsNum(int goodsNum) {this.goodsNum = goodsNum;}
}

GoodsBeanBO.java

//处理与goods表相关的操作
package com.tingwei.model;
import java.sql.*;
import java.util.ArrayList;
public class GoodsBeanBO {private ResultSet rs=null;private Connection ct=null;private PreparedStatement ps=null;//根据商品id显示商品信息的方法public GoodsBean getGoodsBean(String id){GoodsBean gb=new GoodsBean();try {ct=new ConnDB().getConn();ps=ct.prepareStatement("select * from goods where goodsId=?");ps.setString(1, id);//没看到很麻烦rs=ps.executeQuery();if(rs.next()){gb.setGoodsId(rs.getInt(1));gb.setGoodsName(rs.getString(2));gb.setGoodsIntro(rs.getString(3));gb.setGoodsPrice(rs.getFloat(4));gb.setGoodsNum(rs.getInt(5));gb.setPublisher(rs.getString(6));gb.setPhoto(rs.getString(7));gb.setType(rs.getString(8));}} catch (Exception e) {// TODO: handle exceptione.printStackTrace();}finally{//关闭资源this.close();}return gb;}/** 分页显示货物信息* @parameter int pageSize;每页显示记录数* @author someone* @parameter int pageNow 显示第几页* ctrl+shift+m自动引包*/public ArrayList getGoodsByPage(int pageSize,int pageNow){ArrayList al=new ArrayList();try {ct=new ConnDB().getConn();ps=ct.prepareStatement("select top "+pageSize+" * from goods where goodsId not in (select top "+(pageNow-1)*pageSize+" goodsId from goods)");rs=ps.executeQuery();while(rs.next()){GoodsBean gb=new GoodsBean();gb.setGoodsId(rs.getInt(1));gb.setGoodsName(rs.getString(2));gb.setGoodsIntro(rs.getString(3));gb.setGoodsPrice(rs.getFloat(4));gb.setGoodsNum(rs.getInt(5));gb.setPublisher(rs.getString(6));gb.setPhoto(rs.getString(7));gb.setType(rs.getString(8));al.add(gb); //very important,don't forget }} catch (Exception e) {// TODO: handle exceptione.printStackTrace();}finally{this.close();}return al;}//得到总共有多少页public int getPageCount(int pageSize){int pageCount=0;int rowCount=0;try {ct=new ConnDB().getConn();ps=ct.prepareStatement("select count(*) from goods");rs=ps.executeQuery();if(rs.next()){rowCount=rs.getInt(1);if(rowCount%pageSize==0){pageCount=rowCount/pageSize;}else{pageCount=rowCount/pageSize+1;}}} catch (Exception e) {// TODO: handle exceptione.printStackTrace();}return pageCount;}//关闭数据库方法public void close(){try {if(rs!=null)rs.close();if(ps!=null)ps.close();if(ct!=null)ct.close();} catch (Exception e) {// TODO: handle exceptione.printStackTrace();}}
}

ShoppingBO.java

//处理与购物有关的逻辑
//添加商品、删除商品、清空商品、修改货物数量、显示已选商品清单
package com.tingwei.model;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.util.HashMap;
import java.util.ArrayList;
import java.util.Iterator;
public class ShoppingBO {private float totalPrice=0;//购物车商品总价private ResultSet rs=null;private Connection ct=null;private PreparedStatement ps=null;HashMap <String,String>hm=new HashMap<String,String>();//泛型，明确告诉编译器key值和value值都是String类型的//添加商品public void addGoods(String goodsId,String goodsNum){hm.put(goodsId,goodsNum);}//删除商品public void delGoods(String goodsId){hm.remove(goodsId);}//清空商品public void clearGoods(){hm.clear();}//修改货物数量public void updateGoods(String goodsId,String newNum){hm.put(goodsId, newNum);}//显示已选商品清单public ArrayList showMyCar(){ArrayList <GoodsBean>al=new ArrayList<GoodsBean>();//明确告诉编译器，ArrayList放的是GoodsBeantry {String sub="";String sql="select * from goods where goodsId in";//使用迭代器，完成从HashMap中取出货物idIterator it=hm.keySet().iterator();sub="(";while(it.hasNext()){//取出goodsIdString goodsId=(String)it.next();//判断goodsId是否是最后一个idif(it.hasNext()){sub+=goodsId+",";}else{sub+=goodsId+")";}}sql+=sub;//不可少System.out.println("执行的sql语句"+sql);ct=new ConnDB().getConn();ps=ct.prepareStatement(sql);rs=ps.executeQuery();//总价清空this.totalPrice=0;while(rs.next()){GoodsBean gb=new GoodsBean();int goodsId=rs.getInt(1);gb.setGoodsId(goodsId);gb.setGoodsName(rs.getString(2));gb.setGoodsIntro(rs.getString(3));gb.setGoodsPrice(rs.getFloat(4));float unit=rs.getFloat(4);gb.setGoodsNum(rs.getInt(5));gb.setPublisher(rs.getString(6));gb.setPhoto(rs.getString(7));gb.setType(rs.getString(8));this.totalPrice+=unit*Integer.parseInt(this.getGoodsNumById(goodsId+""));al.add(gb);}} catch (Exception e) {// TODO: handle exceptione.printStackTrace();}finally{this.close();}return al;}/** 根据商品id得到商品顾客选择的商品数量* @param goodsId* @return 商品数量*/public String getGoodsNumById(String goodsId){return (String)hm.get(goodsId);}//返回购物车总价的方法,不必单独写，可以在showMyCar中使用现成的数据来计算public float getTotalPrice(){return this.totalPrice;}//  关闭数据库方法public void close(){try {if(rs!=null)rs.close();if(ps!=null)ps.close();if(ct!=null)ct.close();} catch (Exception e) {// TODO: handle exceptione.printStackTrace();}}
}

UserBean.java

//表示users表
package com.tingwei.model;public class UserBean {private long userId;private String username;private String truename;private String passwd;private String email;private String phone;private String address;private String postcode;private int grade;public String getAddress() {return address;}public void setAddress(String address) {this.address = address;}public String getEmail() {return email;}public void setEmail(String email) {this.email = email;}public int getGrade() {return grade;}public void setGrade(int grade) {this.grade = grade;}public String getPasswd() {return passwd;}public void setPasswd(String passwd) {this.passwd = passwd;}public String getPhone() {return phone;}public void setPhone(String phone) {this.phone = phone;}public String getPostcode() {return postcode;}public void setPostcode(String postcode) {this.postcode = postcode;}public String getTruename() {return truename;}public void setTruename(String truename) {this.truename = truename;}public long getUserId() {return userId;}public void setUserId(long userId) {this.userId = userId;}public String getUsername() {return username;}public void setUsername(String username) {this.username = username;}
}

UserBeanBO.java

//表示对users表相关操作
package com.tingwei.model;
import java.sql.Connection;
import java.sql.ResultSet;
import java.sql.PreparedStatement;public class UserBeanBO {private PreparedStatement ps=null; //PrepareStatement差不多，更快点private Connection ct=null;private ResultSet rs=null;//得到用户信息public UserBean getUserBean(String u){UserBean ub=new UserBean();try {ct=new ConnDB().getConn();ps=ct.prepareStatement("select top 1 * from users where username=?");ps.setString(1, u);rs=ps.executeQuery();if(rs.next()){ub.setUserId(rs.getLong(1));ub.setUsername(rs.getString(2));ub.setTruename(rs.getString(3));ub.setPasswd(rs.getString(4));ub.setEmail(rs.getString(5));ub.setPhone(rs.getString(6));ub.setAddress(rs.getString(7));ub.setPostcode(rs.getString(8));ub.setGrade(rs.getInt(9));}} catch (Exception e) {// TODO: handle exceptione.printStackTrace();}return ub;}
//  验证用户是否合法public boolean checkUser(String u,String p){boolean b=false;try {//到数据库去验证ct=new ConnDB().getConn();ps=ct.prepareStatement("select passwd from users where username='"+u+"'");rs=ps.executeQuery();if(rs.next()){if(rs.getString(1).equals(p)){b=true;}}  } catch (Exception e) {// TODO: handle exceptione.printStackTrace();}finally{this.close();}return b;}public void close(){try {if(rs!=null)rs.close();if(ps!=null)ps.close();if(ct!=null)ct.close();} catch (Exception e) {// TODO: handle exceptione.printStackTrace();}}}

OrderBean.java

package com.tingwei.model;public class OrderBean {private long ordersId;private long userId;private java.util.Date orderDate;private String payType;private byte isPayed;private float totalPrice;public byte getIsPayed() {return isPayed;}public void setIsPayed(byte isPayed) {this.isPayed = isPayed;}public java.util.Date getOrderDate() {return orderDate;}public void setOrderDate(java.util.Date orderDate) {this.orderDate = orderDate;}public long getOrdersId() {return ordersId;}public void setOrdersId(long ordersId) {this.ordersId = ordersId;}public String getPayType() {return payType;}public void setPayType(String payType) {this.payType = payType;}public float getTotalPrice() {return totalPrice;}public void setTotalPrice(float totalPrice) {this.totalPrice = totalPrice;}public long getUserId() {return userId;}public void setUserId(long userId) {this.userId = userId;}
}

OrderBeanBO.java

package com.tingwei.model;
import java.sql.*;
import java.util.ArrayList;
public class OrderBeanBO {private ResultSet rs=null;private Connection ct=null;private PreparedStatement ps=null;/** 生产订单信息* @param sbo用户购物车处理对象* @param userId用户id* @return OrderInfoBean*/public OrderInfoBean addOrder(ShoppingBO sbo,String userId){OrderInfoBean oib=new OrderInfoBean();boolean b=true;try {ct=new ConnDB().getConn();ps=ct.prepareStatement("insert into orders (userId,isPayed,totalPrice) values(?,?,?)");ps.setString(1, userId);ps.setByte(2, (byte)0);ps.setFloat(3, sbo.getTotalPrice());if(ps.executeUpdate()==1){ps=ct.prepareStatement("select max(ordersId) from orders");rs=ps.executeQuery();int orderId=0;if(rs.next()){orderId=rs.getInt(1);}//添加orderDetail表//从购物车中取出商品ArrayList al=sbo.showMyCar();Statement sm=ct.createStatement();for(int i=0;i<al.size();i++){GoodsBean gb=(GoodsBean)al.get(i);System.out.println("insert into orderDetail values('"+orderId+"','"+gb.getGoodsId()+"','"+sbo.getGoodsNumById(gb.getGoodsId()+"")+"')");sm.addBatch("insert into orderDetail values('"+orderId+"','"+gb.getGoodsId()+"','"+sbo.getGoodsNumById(gb.getGoodsId()+"")+"')");}//执行批量添加任务sm.executeBatch();//多表查询String sql="select ordersId,truename,address,postcode,phone,totalPrice,username,email from users,orders"+" where ordersId=? and users.userId=(select orders.userId from orders where ordersId=?)";ps=ct.prepareStatement(sql);ps.setInt(1, orderId);ps.setInt(2, orderId);rs=ps.executeQuery();if(rs.next()){//将rs封装到OrderInfoBean 中oib.setOrdersId(rs.getInt(1));oib.setTruename(rs.getString(2));oib.setAddress(rs.getString(3));oib.setPostcode(rs.getString(4));oib.setPhone(rs.getString(5));oib.setTotalPrice(rs.getFloat(6));oib.setUsername(rs.getString(7));oib.setEmail(rs.getString(8));}}} catch (Exception e) {// TODO: handle exceptionb=false;e.printStackTrace();}finally{this.close();}if(b){return oib;}else{return null;}
}//关闭数据库方法
public void close(){try {if(rs!=null)rs.close();if(ps!=null)ps.close();if(ct!=null)ct.close();} catch (Exception e) {// TODO: handle exceptione.printStackTrace();}
}
}

OrderInfoBean.java

//详细的订单信息
package com.tingwei.model;public class OrderInfoBean {private int userId;private String username;private String truename;private String address;private String phone;private String Email;private String postcode;private int grade;private int ordersId;private java.util.Date orderDate;private String payType;private byte isPayed;private float totalPrice;public String getAddress() {return address;}public void setAddress(String address) {this.address = address;}public int getGrade() {return grade;}public void setGrade(int grade) {this.grade = grade;}public byte getIsPayed() {return isPayed;}public void setIsPayed(byte isPayed) {this.isPayed = isPayed;}public java.util.Date getOrderDate() {return orderDate;}public void setOrderDate(java.util.Date orderDate) {this.orderDate = orderDate;}public int getOrdersId() {return ordersId;}public void setOrdersId(int ordersId) {this.ordersId = ordersId;}public String getPayType() {return payType;}public void setPayType(String payType) {this.payType = payType;}public String getPhone() {return phone;}public void setPhone(String phone) {this.phone = phone;}public String getPostcode() {return postcode;}public void setPostcode(String postcode) {this.postcode = postcode;}public String getTruename() {return truename;}public void setTruename(String truename) {this.truename = truename;}public int getUserId() {return userId;}public void setUserId(int userId) {this.userId = userId;}public String getUsername() {return username;}public void setUsername(String username) {this.username = username;}public String getEmail() {return Email;}public void setEmail(String email) {Email = email;}public float getTotalPrice() {return totalPrice;}public void setTotalPrice(float totalPrice) {this.totalPrice = totalPrice;}}

第三部分 Servlet控制器

ShowGoodsClServlet.java

//此控制器用来处理主页面信息显示请求
package com.tingwei.servlet;import java.io.IOException;
import java.io.PrintWriter;import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import com.tingwei.model.*;
public class ShowGoodsClServlet extends HttpServlet {/*** The doGet method of the servlet. <br>** This method is called when a form has its tag value method equals to get.* * @param request the request send by the client to the server* @param response the response send by the server to the client* @throws ServletException if an error occurred* @throws IOException if an error occurred*/public void doGet(HttpServletRequest request, HttpServletResponse response)throws ServletException, IOException {response.setContentType("text/html");response.setCharacterEncoding("utf-8");//设置编码别放错位置PrintWriter out = response.getWriter();//判断需要控制的类型String type=request.getParameter("type");if(type.equals("showItem")){//          得到要显示的商品idString goodsId=request.getParameter("id");//调用BOGoodsBeanBO gbb=new GoodsBeanBO();GoodsBean gb=gbb.getGoodsBean(goodsId);//把gb放入requestrequest.setAttribute("goodsInfo",gb);request.getRequestDispatcher("showItem.jsp").forward(request, response);}else if(type.equals("fenye")){String pageNow=request.getParameter("pageNow");//把pageNow放入requestrequest.setAttribute("pageNow", pageNow);//跳转回购物大厅request.getRequestDispatcher("index.jsp").forward(request, response);}}/*** The doPost method of the servlet. <br>** This method is called when a form has its tag value method equals to post.* * @param request the request send by the client to the server* @param response the response send by the server to the client* @throws ServletException if an error occurred* @throws IOException if an error occurred*/public void doPost(HttpServletRequest request, HttpServletResponse response)throws ServletException, IOException {this.doGet(request, response);}}

ShoppingClServle.java

//此控制器用来处理购物操作请求
package com.tingwei.servlet;import java.io.IOException;
import java.io.PrintWriter;import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import com.tingwei.model.*;
import java.util.ArrayList;
public class ShoppingClServlet extends HttpServlet {/*** The doGet method of the servlet. <br>** This method is called when a form has its tag value method equals to get.* * @param request the request send by the client to the server* @param response the response send by the server to the client* @throws ServletException if an error occurred* @throws IOException if an error occurred*/public void doGet(HttpServletRequest request, HttpServletResponse response)throws ServletException, IOException {response.setContentType("text/html");response.setCharacterEncoding("utf-8");PrintWriter out = response.getWriter();//得带type值，从而知道顾客需要的购物操作String type=request.getParameter("type");
//      调用ShoppingBO，完成购物功能,??这里有问题，会造成有多个购物车，必须保证始终只有一个购物车，解决办法采用session//1.先试图从session中取出一个购物车ShoppingBO sbo=(ShoppingBO)request.getSession().getAttribute("mycar");if(sbo==null){//创建一个购物车，并放入sessionsbo=new ShoppingBO();request.getSession().setAttribute("mycar", sbo);}if(type.equals("addGoods")){//          获得要购买的商品idString goodsId=request.getParameter("goodsId");sbo.addGoods(goodsId, "1");}else if(type.equals("delGoods")){//得到要删除的商品idString goodsId=request.getParameter("goodsId");//从购物车中删除sbo.delGoods(goodsId);}else if(type.equals("show")){//do nothing}else if(type.equals("delAll")){sbo.clearGoods();}else if(type.equals("updateGoods")){//接收商品idString goodsId[]=request.getParameterValues("goodsId");String newNums[]=request.getParameterValues("newNums");for(int i=0;i<goodsId.length;i++){//测试是否得到System.out.println("id=="+goodsId[i]+"数量="+newNums[i]);sbo.updateGoods(goodsId[i], newNums[i]);}//sbo.updateGoods(goodsId, newNum)}
//      把购物车的商品信息取出来，准备显示ArrayList al=sbo.showMyCar();//放入request中request.setAttribute("myCarInfo", al);//跳转到showShoppingCar.jsprequest.getRequestDispatcher("showShoppingCar.jsp").forward(request, response);}/*** The doPost method of the servlet. <br>** This method is called when a form has its tag value method equals to post.* * @param request the request send by the client to the server* @param response the response send by the server to the client* @throws ServletException if an error occurred* @throws IOException if an error occurred*/public void doPost(HttpServletRequest request, HttpServletResponse response)throws ServletException, IOException {this.doGet(request, response);}}

IsLoginServlet.java

//此控制器用来识别用户是否登录过
package com.tingwei.servlet;
import javax.servlet.http.*;
import java.io.PrintWriter;
import java.io.IOException;
import javax.servlet.ServletException;
import com.tingwei.model.*;public class IsLoginServlet extends HttpServlet {public void doGet(HttpServletRequest request,HttpServletResponse response)throws ServletException,IOException {response.setContentType("text/html");response.setCharacterEncoding("utf-8");PrintWriter out=response.getWriter();//验证用户//1.看看session中是否存在用户登录信息UserBean ub=(UserBean)request.getSession().getAttribute("userInfo");if(ub==null){request.getRequestDispatcher("userLogin.jsp").forward(request, response);}else{request.getRequestDispatcher("shoppingOrder.jsp").forward(request, response);}}public void doPost(HttpServletRequest request,HttpServletResponse response)throws ServletException,IOException {this.doGet(request, response);}
}

LoginDealServlet.java

//此控制器用来处理验证用户登录请求
package com.tingwei.servlet;import java.io.IOException;
import java.io.PrintWriter;import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import com.tingwei.model.*;
import java.util.ArrayList;
public class LoginDealServlet extends HttpServlet {/*** The doGet method of the servlet. <br>** This method is called when a form has its tag value method equals to get.* * @param request the request send by the client to the server* @param response the response send by the server to the client* @throws ServletException if an error occurred* @throws IOException if an error occurred*/public void doGet(HttpServletRequest request, HttpServletResponse response)throws ServletException, IOException {response.setContentType("text/html");response.setCharacterEncoding("utf-8");PrintWriter out = response.getWriter();String u=request.getParameter("username");String p=request.getParameter("passwd");System.out.println("用户"+u);UserBeanBO ubb=new UserBeanBO();if(ubb.checkUser(u, p)){//把登录成功的用户信息放入sessionUserBean ub=ubb.getUserBean(u);request.getSession().setAttribute("userInfo", ub);//取出购物车中的商品信息ShoppingBO sbo=(ShoppingBO)request.getSession().getAttribute("mycar");ArrayList al=sbo.showMyCar();request.setAttribute("mycarInfo", al);request.getRequestDispatcher("userInfo.jsp").forward(request, response);}else{request.getRequestDispatcher("userLogin.jsp").forward(request, response);}}/*** The doPost method of the servlet. <br>** This method is called when a form has its tag value method equals to post.* * @param request the request send by the client to the server* @param response the response send by the server to the client* @throws ServletException if an error occurred* @throws IOException if an error occurred*/public void doPost(HttpServletRequest request, HttpServletResponse response)throws ServletException, IOException {this.doGet(request, response);}}

OrderServlet.java

//此控制器用来处理订单生成请求
package com.tingwei.servlet;
import com.tingwei.model.*;import java.io.IOException;
import java.io.PrintWriter;import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;public class OrderServlet extends HttpServlet {/*** The doGet method of the servlet. <br>** This method is called when a form has its tag value method equals to get.* * @param request the request send by the client to the server* @param response the response send by the server to the client* @throws ServletException if an error occurred* @throws IOException if an error occurred*/public void doGet(HttpServletRequest request, HttpServletResponse response)throws ServletException, IOException {response.setContentType("text/html");response.setCharacterEncoding("utf-8");PrintWriter out = response.getWriter();//处理完成订单，把订单写入数据库OrderBeanBO obb=new OrderBeanBO();//得到购物车ShoppingBO sbo=(ShoppingBO)request.getSession().getAttribute("mycar");long userId=((UserBean)request.getSession().getAttribute("userInfo")).getUserId();OrderInfoBean oib=obb.addOrder(sbo, userId+"");if(oib!=null){//准备订单数据，做一个订单Beanrequest.setAttribute("orderInfo", oib);request.getRequestDispatcher("shoppingOrder.jsp").forward(request, response);}else{//添加订单失败request.getRequestDispatcher("userInfo.jsp").forward(request, response);}}/*** The doPost method of the servlet. <br>** This method is called when a form has its tag value method equals to post.* * @param request the request send by the client to the server* @param response the response send by the server to the client* @throws ServletException if an error occurred* @throws IOException if an error occurred*/public void doPost(HttpServletRequest request, HttpServletResponse response)throws ServletException, IOException {this.doGet(request, response);}}

第四部分配置文件

WEB-INF/web.xml

<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.4" xmlns="http://java.sun.com/xml/ns/j2ee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd"><servlet><description>This is the description of my J2EE component</description><display-name>This is the display name of my J2EE component</display-name><servlet-name>ShowGoodsClServlet</servlet-name><servlet-class>com.tingwei.servlet.ShowGoodsClServlet</servlet-class></servlet><servlet><description>This is the description of my J2EE component</description><display-name>This is the display name of my J2EE component</display-name><servlet-name>ShoppingClServlet</servlet-name><servlet-class>com.tingwei.servlet.ShoppingClServlet</servlet-class></servlet><servlet><description>This is the description of my J2EE component</description><display-name>This is the display name of my J2EE component</display-name><servlet-name>IsLoginServlet</servlet-name><servlet-class>com.tingwei.servlet.IsLoginServlet</servlet-class></servlet><servlet><description>This is the description of my J2EE component</description><display-name>This is the display name of my J2EE component</display-name><servlet-name>OrderServlet</servlet-name><servlet-class>com.tingwei.servlet.OrderServlet</servlet-class></servlet><servlet><description>This is the description of my J2EE component</description><display-name>This is the display name of my J2EE component</display-name><servlet-name>LoginDealServlet</servlet-name><servlet-class>com.tingwei.servlet.LoginDealServlet</servlet-class></servlet><servlet-mapping><servlet-name>ShowGoodsClServlet</servlet-name><url-pattern>/ShowGoodsClServlet</url-pattern></servlet-mapping><servlet-mapping><servlet-name>ShoppingClServlet</servlet-name><url-pattern>/ShoppingClServlet</url-pattern></servlet-mapping><servlet-mapping><servlet-name>IsLoginServlet</servlet-name><url-pattern>/IsLoginServlet</url-pattern></servlet-mapping><servlet-mapping><servlet-name>OrderServlet</servlet-name><url-pattern>/OrderServlet</url-pattern></servlet-mapping><servlet-mapping><servlet-name>LoginDealServlet</servlet-name><url-pattern>/LoginDealServlet</url-pattern></servlet-mapping><welcome-file-list><welcome-file>index.jsp</welcome-file></welcome-file-list>
</web-app>

mycss/Untitled-3.css

.abc {font-family: "新宋体";font-size: 9px;
}.navi {font-family: "新宋体";font-size: 12px;background-color: #33FF00;
}

第五部分 sql语句


go
create database testdb
use testdb
--普通用户表users
create table users(
userId bigint primary key identity,--用户id
username varchar(30) not null unique,--用户名
truename varchar(30) not null,--真实姓名
passwd varchar(30) not null,--密码
email varchar(40) not null,--邮箱
phone varchar(20) not null,--手机号
address varchar(30) not null,--收获地址
postcode char(6) not null,--邮编
grade int default 1)--用户等级--管理员表admin--商品表
create table goods(
goodsId bigint primary key identity,--商品编号
goodsName varchar(40),--商品名称
goodsIntro varchar(500),--介绍
goodsPrice float,--价格
goodsNum int,--库存
publisher varchar(40),--出版社
photo varchar(40),--商品照片
type varchar(10),--商品种类
)
select *from goods
insert into goods values('《西游记》','讲述了唐僧师徒四人西天取经的故事',58,33,'中央电视台','01.jpg','大陆电视剧')
insert into goods values('《王者荣耀》','讲述了十个人游戏玩家的故事',58,33,'腾讯','02.jpg','国产游戏')
insert into goods values('《炉石传说》','讲述了炉石传说',99,33,'乐视','03.jpg','大陆电视剧')
insert into goods values('《肖申克的旧书》','讲述了肖申克二十年挖洞越狱的励志故事',58,33,'好莱坞','04.jpg','美国电影')select *from users
insert into users values('YaLee','亚历','yali','yali@qq.com','153755','七星关中学','655223',2)
insert into users values('sunce','孙策','sunce','sunce@qq.com','153755','琅琊路中学','655223',2)--分页,若一页显示6条，排除0条选6条，即显示第一页
select top 6 * from goods where goodsId not in (select top 0 goodsId from goods);--分页,若一页显示6条，排除6条选6条，即显示第二页
select top 6 * from goods where goodsId not in (select top 6 goodsId from goods);update goods set photo='11.jpg' where goodsId=11insert into goods(goodsName,goodsIntro,goodsPrice,goodsNum,publisher,photo,type)select goodsName,goodsIntro,goodsPrice,goodsNum,publisher,photo,type from goodsselect * from goods where goodsId in(1,4);use testdb
create table orders(
ordersId bigint primary identity(1,1),--订单号
userId bigint constraint fk_client_id,references users(userid),--哪个用户订的
orderDate datetime default getdate(),--下单时间
payType varchar(20) check(payType in('货到付款','支付宝付款'))default '货到付款',--付款方式
isPayed bit check (isPayed in(0,1)),--表示是否付款了
totalPrice float not null--数量
)use testdb--订单细节表
create table orderDetail(
ordersI bigint constraint fk_order_id references orders(ordersId),--订单号（并是一个外键）指向orders表
goodsId bigint constraint fk_goods_id references goods(goodsId),--商品号
nums int not null--数量
)select * from orderDetail
select * from orders
select * from users
select passwd from users where username='sunce'

总结

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JSP教程第9讲笔记

JSP部分

Java模型部分

第三部分 Servlet控制器

第四部分配置文件

第五部分 sql语句

总结

JSP教程第9讲笔记相关推荐

最新文章

热门文章

JSP教程第9讲笔记

JSP部分

Java模型部分

第三部分 Servlet控制器

第四部分 配置文件

第五部分 sql语句

总结

JSP教程第9讲笔记相关推荐

最新文章

热门文章

第四部分配置文件