javaweb购物车代码 java购物清单代码

编程之家2026-05-19857次浏览

大家好，今天给各位分享javaweb购物车代码的一些知识，其中也会对java购物清单代码进行解释，文章篇幅可能偏长，如果能碰巧解决你现在面临的问题，别忘了关注本站，现在就马上开始吧！

求简单实现网上商城功能的java代码

平时在线10k人大概是让你创建一个数据库连接池，大小设置10k。

下面是一个图书商城的数据库表部分，供你参考

set utf8

DROP TABLE IF EXISTS d_product;

CREATE TABLE d_product(//用来存放总商品，入图书种类

id int(12) NOT NULL auto_increment,

product_name varchar(100) NOT NULL,

description varchar(100) default NULL,

add_time bigint(20) default NULL,

fixed_price double NOT NULL,

dang_price double NOT NULL,

keywords varchar(200) default NULL,

has_deleted int(1) NOT NULL default'0',

product_pic varchar(200) default NULL,

PRIMARY KEY(id)

) ENGINE=InnoDB DEFAULT CHARSET=utf8;

INSERT INTO d_product VALUES(23,'上课睡觉的故事','上课睡觉的故事',1237873000234,200,180,'key',0,'15.jpg');

DROP TABLE IF EXISTS d_book;

CREATE TABLE d_book(//用来存放图书的具体内容

id int(12) NOT NULL,

author varchar(200) NOT NULL,

publishing varchar(200) NOT NULL,

publish_time bigint(20) NOT NULL,

word_number varchar(15) default NULL,

which_edtion varchar(15) default NULL,

total_page varchar(15) default NULL,

print_time int(20) default NULL,

print_number varchar(15) default NULL,

isbn varchar(25) default NULL,

author_summary text NOT NULL,

catalogue text NOT NULL,

PRIMARY KEY(id)

) ENGINE=InnoDB DEFAULT CHARSET=utf8;

INSERT INTO d_book VALUES(24,'阿斗,'地球出版社',1237873000234,'1万','1','100',1,NULL,'12345678','无描述,'好书！');

DROP TABLE IF EXISTS d_category;

CREATE TABLE d_category(//商城图书目录

id int(12) NOT NULL auto_increment,

turn int(10) NOT NULL,

en_name varchar(200) NOT NULL,

name varchar(200) NOT NULL,

description varchar(200),

parent_id int(10),

PRIMARY KEY(id)

) ENGINE=InnoDB DEFAULT CHARSET=utf8;

INSERT INTO d_category VALUES(1,1,'Book','图书',NULL,0);

DROP TABLE IF EXISTS d_category_product;

CREATE TABLE d_category_product(//这个是连接目录和书籍具体信息的表

id int(12) NOT NULL auto_increment,

product_id int(10) NOT NULL,

cat_id int(10) NOT NULL,

PRIMARY KEY(id)

) ENGINE=InnoDB DEFAULT CHARSET=utf8;

INSERT INTO d_category_product VALUES(72,24,1);

DROP TABLE IF EXISTS d_item;

CREATE TABLE d_item(//这个订单条目表

id int(12) NOT NULL auto_increment,

order_id int(10) NOT NULL,

product_id int(10) NOT NULL,

product_name varchar(100) NOT NULL,

dang_price double NOT NULL,

product_num int(10) NOT NULL,

amount double NOT NULL,

PRIMARY KEY(id)

)

DROP TABLE IF EXISTS d_order;

CREATE TABLE d_order(//订单表

id int(10) NOT NULL auto_increment,

user_id int(10) NOT NULL,

status int(10) NOT NULL,

order_time bigint(20) NOT NULL,

order_desc varchar(100) default NULL,

total_price double NOT NULL,

receive_name varchar(100) default NULL,

full_address varchar(200) default NULL,

postal_code varchar(8) default NULL,

mobile varchar(20) default NULL,

phone varchar(20) default NULL,

PRIMARY KEY(id)

) ENGINE=InnoDB;

DROP TABLE IF EXISTS d_receive_address;

CREATE TABLE d_receive_address(//收件人信息表

id int(12) NOT NULL auto_increment,

user_id int(11) NOT NULL,

receive_name varchar(20) NOT NULL,

full_address varchar(200) NOT NULL,

postal_code varchar(8) NOT NULL,

mobile varchar(15) default NULL,

phone varchar(20) default NULL,

PRIMARY KEY(id)

) ENGINE=InnoDB;

insert into d_receive_address values(1, 6,'Java','sun.cn','10000800','12345','67890');

insert into d_receive_address values(2, 6,'JavaJavaJava','ibm.cn','10000600','12345','67890');

DROP TABLE IF EXISTS d_user;

CREATE TABLE d_user(//用户表，用户信息

id int(12) NOT NULL auto_increment,

email varchar(50) NOT NULL,

nickname varchar(50) default NULL,

password varchar(50) NOT NULL,

user_integral int(12) NOT NULL default'0',

is_email_verify char(3),

email_verify_code varchar(50) default NULL,

last_login_time bigint default NULL,

last_login_ip varchar(15) default NULL,

PRIMARY KEY(id),

UNIQUE KEY email(email)

) ENGINE=InnoDB DEFAULT CHARSET=utf8;

jsp网上购物代码及操作!

1.index.jsp登陆界面：

<%@ page language="java" import="java.util.*" pageEncoding="GB2312"%>

String path= request.getContextPath();

String basePath= request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";

<%session.invalidate();%><%--销毁所有session对象--%>

<!DOCTYPE HTML PUBLIC"-//W3C//DTD HTML 4.01 Transitional//EN">

<html>

<head>

<!--

-->

</head>

<body>

<hr>

请输入用户名，默认的为Guest

</tr>

</tr>

</tr>

</tr>

</table>

</form>

</center>

</body>

</html>

2.checklogin.jsp登陆认证页面：

<%@ page language="java" import="java.util.*" pageEncoding="GB2312"%>

String path= request.getContextPath();

String basePath= request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";

<jsp:useBean id="Car" class="web.Car" scope="session">

<jsp:setProperty property="*" name="Car"/>

</jsp:useBean>

<%session.setMaxInactiveInterval(900);%><%--设置session超时为30分--%>

<!DOCTYPE HTML PUBLIC"-//W3C//DTD HTML 4.01 Transitional//EN">

<html>

<head>

<title>My JSP'checklogin.jsp' starting page</title>

<!--

-->

</head>

<body>

String nextpage;

if(Car.getUserID().equals("Guest"))

nextpage="car.jsp";

else

nextpage="index.jsp";

<jsp:forward page="<%=nextpage%>"></jsp:forward>

</body>

</html>

3.car.jsp购物车页面

<%@ page language="java" import="java.util.*" pageEncoding="GB2312"%>

String path= request.getContextPath();

String basePath= request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";

<%@ page import="java.util.*"%>

<%@ page import="web.Car"%>

<!DOCTYPE HTML PUBLIC"-//W3C//DTD HTML 4.01 Transitional//EN">

<html>

<head>

<!--

-->

</head>

<body>

<hr>

<jsp:useBean id="Car" class="web.Car" scope="session">

</jsp:useBean>

<strong>百货商场，请尽情的选购商品添加到购物车！</strong>

</font>

<%String str=response.encodeRedirectURL("add.jsp");%>

<form action="<%=str%>" method="post" name="form">

</select>

输入购买的数量：

</font>

<p>

<input type="radio" name="unit" value="个">个

<input type="radio" name="unit" value="公斤">公斤

<input type="radio" name="unit" value="台">台

</form>

<p><font color="#804040" face="楷体_GB2312">你的购物车里有如下商品：</font>

Hashtable list=Car.list_h();

Enumeration enums=list.elements();

while(enums.hasMoreElements()){

String goods=(String) enums.nextElement();

byte b[]=goods.getBytes("ISO-8859-1");

goods=new String(b);

out.println("<br>"+goods);

}

</font>

<% String strl=response.encodeRedirectURL("selectRemoveGoods.jsp");%>

<form action="<%=strl%>" method="post" name="form">

</form>

</font>

<%@ include file="tail.jsp"%>

</body>

</html>

4.add.jsp增加物品：

<%@ 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>

<!--

-->

</head>

<body>

<%@ include file="header.jsp"%>

<hr>

<jsp:useBean id="Car" class="web.Car" scope="session"></jsp:useBean><br>

<jsp:setProperty name="Car" property="*"/>

<%Car.add_h();%>

<p>您的购物车有如下商品：

Hashtable list=Car.list_h();

Enumeration enums=list.elements();

while(enums.hasMoreElements()){

String goods=(String) enums.nextElement();

byte b[]=goods.getBytes("ISO-8859-1");

goods=new String(b);

out.println("<br>"+goods);

}

</font>

<%String str=response.encodeRedirectURL("car.jsp");%>

<br>

<form action="<%=str%>" method="post" neme="form">

</form>

<%String strl=response.encodeRedirectURL("selectRemoveGoods.jsp");%>

<br>

<form action="<%=strl%>" method="post" neme="form">

</form>

</font>

<%@ include file="tail.jsp"%>

</body>

</html>

5.selectRemoveGoods.jsp选择删除商品：

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>

String path= request.getContextPath();

String basePath= request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";

<%@ page import="java.util.*"%>

<%@ page import="web.Car"%>

<!DOCTYPE HTML PUBLIC"-//W3C//DTD HTML 4.01 Transitional//EN">

<html>

<head>

<!--

-->

</head>

<body>

<hr>

<jsp:useBean id="Car" class="web.Car" scope="session">

</jsp:useBean><br>

<p>选择从购物车中删除的物品：

<%String str=response.encodeRedirectURL("removeWork.jsp");%>

<form action="<%=str%>" method="post" name="form">

</select>

</form>

<p>您的购物车有如下商品：

Hashtable list=Car.list_h();

Enumeration enums=list.elements();

while(enums.hasMoreElements()){

String goods=(String) enums.nextElement();

byte b[]=goods.getBytes("ISO-8859-1");

goods=new String(b);

out.println("<br>"+goods);

}

</font></font>

<%String strl=response.encodeRedirectURL("car.jsp");%>

<form action="<%=strl%>" method="post" neme="form">

</form>

<%@include file="tail.jsp"%>

</body>

</html>

6.removeWork.jsp删除页面：

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>

String path= request.getContextPath();

String basePath= request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";

<%@ page import="java.util.*"%>

<%@ page import="web.Car"%>

<!DOCTYPE HTML PUBLIC"-//W3C//DTD HTML 4.01 Transitional//EN">

<html>

<head>

<!--

-->

</head>

<body>

<%@include file="header.jsp"%>

<hr>

<jsp:useBean id="Car" class="web.Car" scope="session">

</jsp:useBean><br>

<%String str=response.encodeRedirectURL("removeWork.jsp");%>

<%String name=request.getParameter("deleteitem");

if(name==null)

name="";

byte c[]=name.getBytes("ISO-8859-1");

name=new String(c);

Car.dele_h(name);

out.println("您删除了货物"+name);%>

</font>

<p>您的购物车有如下商品：

Hashtable list=Car.list_h();

Enumeration enums=list.elements();

while(enums.hasMoreElements()){

String goods=(String) enums.nextElement();

byte b[]=goods.getBytes("ISO-8859-1");

goods=new String(b);

out.println("<br>"+goods);

}

</font></font>

<%String strp=response.encodeRedirectURL("car.jsp");%>

<form action="<%=strp%>" method="post" neme="form">

</form>

<%String strl=response.encodeRedirectURL("selectRemoveGoods.jsp");%>

<form action="<%=strl%>" method="post" neme="form">

</form>

</body>

</html>

7.header.jsp页面头部：

<%@ page language="java" import="java.util.*" pageEncoding="GB2312"%>

========================================================================<br>

购物车系统<br>

=======================================================================<br>

WELCOME！

<jsp:getProperty name="Car" property="userID"/>

当前时间是：

<%=new java.util.Date().toLocaleString()%>

<br>

</center>

8.tail页面尾部

<%@ page language="java" import="java.util.*" pageEncoding="GB2312"%>

<hr>

JSP+TOMCAT购物系统

</center>

9.Car.java类

package web;

import java.util.*;

import java.io.*;

public class Car implements Serializable{

Hashtable list=new Hashtable();//散列表，商品列表

String item="Welcome";

int mount=0;//商品数量

String unit=null;//商品单位

String userID;//用户

public void Car(){

}

public void setItem(String item){

this.item= item;

}

public void setMount(int mount){

this.mount= mount;

}

public void setUnit(String unit){

this.unit= unit;

}

public String getUserID(){

return userID;

}

public void setUserID(String userID){

this.userID= userID;

}

public Hashtable list_h(){

return list;

}

public void dele_h(String s){

list.remove(s);

}

public void add_h(){

String str="Name:"+item+"Mount:"+mount+"Unit:"+unit;

list.put(item, str);

}

javaweb购物车第二次订单失效

javaweb购物车第二次订单失效原因是数据库操作问题。根据查询相关公开信息显示，如果订单信息没有正确保存到数据库中，或者数据库操作出现异常，会导致订单失效。可以在代码中添加异常处理和日志记录，以便发生问题时进行排查。JavaWEB的在线电子书商城，实际上就是销售企业为消费者提供的网上购物商城，在该网站中用户可以购买任何商品，而管理员可以对商品和订单等信息进行管理。

OK，本文到此结束，希望对大家有所帮助。

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