建站
咨詢
售后
建站咨詢
新聞中心
用java寫一個手機商城注冊界面代碼
這篇文章主要介紹了java通過JFrame做一個登錄系統(tǒng)的界面完整代碼示例，具有一定借鑒價值，需要的朋友可以參考下。
成都創(chuàng)新互聯(lián)公司專業(yè)提供成都主機托管四川主機托管成都服務器托管四川服務器托管，支持按月付款！我們的承諾：貴族品質(zhì)、平民價格，機房位于中國電信/網(wǎng)通/移動機房，鄭州服務器托管服務有保障！
在java的JFrame內(nèi)通過創(chuàng)建匿名對象的方式做登錄界面
package com.sxt;
import java.awt.Container;
import java.awt.GridLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPasswordField;
import javax.swing.JTextField;
public class LoginFrame extends JFrame{
JTextField txtname=new JTextField();
JPasswordField txtpass=new JPasswordField();
JButton bl=new JButton("登錄");
JButton bg=new JButton("關閉");
//構(gòu)造無參構(gòu)造器把主要的方法放在構(gòu)造器里,然后在main方法里面調(diào)
public LoginFrame(){
setBounds(25,25,250,250);
Container c = getContentPane();
c.setLayout(new GridLayout(4,2,10,10));
c.add(new JLabel("用戶名"));
c.add(txtname);
c.add(new JLabel("密碼"));
c.add(txtpass);
c.add(bl);
c.add(bg);
setDefaultCloseOperation(EXIT_ON_CLOSE);
setVisible(true);
//注意：此處是匿名內(nèi)部類
bg.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent e) {
// TODO Auto-generated method stub
System.exit(0);
}
}
);
//注意：此處是匿名內(nèi)部類
bl.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent e) {
數(shù)據(jù)庫如何用java寫超市購物程序？
要使用Java編寫超市購物程序，您需要使用Java數(shù)據(jù)庫編程技術來連接到您的數(shù)據(jù)庫并執(zhí)行相關的數(shù)據(jù)庫操作。在Java中，您可以使用JDBC（Java數(shù)據(jù)庫連接）API來連接到數(shù)據(jù)庫并執(zhí)行SQL語句。例如，您可以使用JDBC API來執(zhí)行以下操作：
創(chuàng)建數(shù)據(jù)庫連接
執(zhí)行增刪改查（CRUD）操作
提交或回滾事務
執(zhí)行存儲過程和函數(shù)
查詢數(shù)據(jù)庫元數(shù)據(jù)
此外，您還可以使用Java的面向?qū)ο缶幊碳夹g來封裝數(shù)據(jù)庫操作，以便更方便地在您的程序中使用。例如，您可以創(chuàng)建一個類來表示超市商品，并定義一些方法來執(zhí)行商品的增刪改查操作。這樣，您就可以在程序中通過調(diào)用這些方法來簡單地完成對數(shù)據(jù)庫的操作，而不需要編寫復雜的SQL語句。
用java編程實現(xiàn)網(wǎng)上超市購物結(jié)算功能代碼
哎，我還是自己代碼黏貼給你吧！免得總通不過！裝不下這么多字，詳情自己找我。 連接數(shù)據(jù)庫類（添加修改會員信息） package com.to.java; import java.util.Scanner; import java.sql.*; public class Vds { Scanner Input=new Scanner(System.in); ZhuCK1 zhuck1=new ZhuCK1(); public void x(){ try{ Connection con=null; Statement stmt=null; ResultSet rs=null; Class.forName("sun.jdbc.odbc.JdbcOdbcDriver"); String ur1="jdbc:odbc:gg"; con=DriverManager.getConnection(ur1); stmt=con.createStatement(); String sqlstmt="select id,mm from gg"; rs=stmt.executeQuery(sqlstmt); System.out.println("----------查詢結(jié)果---------"); System.out.println(); System.out.println("會員號--密碼"); while(rs.next()){ String id=rs.getString("id"); String mm=rs.getString("mm"); System.out.println(id+" "+mm); } con.close(); stmt.close(); }catch(Exception e){ System.out.println(e);} System.out.println("是否返回上級菜單"); System.out.println("1.是"); System.out.println("2.否"); int m=Input.nextInt(); switch(m){ case 1: zhuck1.ZhucK1(); break; case 2: { System.out.println("歡迎下次再次使用");System.exit(-1);}; break; }} public void j(){ try{ Connection con=null; Statement stmt=null; ResultSet rs=null; Class.forName("sun.jdbc.odbc.JdbcOdbcDriver"); String ur1="jdbc:odbc:gg"; con=DriverManager.getConnection(ur1); stmt=con.createStatement(); String sqlstmt="select id,mm from gg"; rs=stmt.executeQuery(sqlstmt); while(rs.next()){ String id=rs.getString("id"); String mm=rs.getString("mm"); System.out.println(id+" "+mm); } Scanner input=new Scanner(System.in); System.out.println("請輸入會員信息："); System.out.println("請輸入會員號："); String f=input.next(); System.out.println("請輸入密碼："); String q=input.next(); String sqlst="insert into gg values('"+f+"','"+q+"')"; Statement tatement=con.createStatement(); int result=tatement.executeUpdate(sqlst); System.out.println("操作成功！"); con.close(); stmt.close(); }catch(Exception e){ System.out.println(e); } System.out.println("是否返回上級菜單"); System.out.println("1.是"); System.out.println("2.否"); int m=Input.nextInt(); switch(m){ case 1: zhuck1.ZhucK1(); break; case 2: { System.out.println("歡迎下次再次使用");System.exit(-1);}; break; } } public void xg(){ try{ Connection con=null; Statement stmt=null; ResultSet rs=null; Class.forName("sun.jdbc.odbc.JdbcOdbcDriver"); String ur1="jdbc:odbc:gg"; con=DriverManager.getConnection(ur1); stmt=con.createStatement(); String sqlstmt="select id,mm from gg"; rs=stmt.executeQuery(sqlstmt); while(rs.next()){ String id=rs.getString("id"); String mm=rs.getString("mm"); System.out.println(id+" "+mm); } Scanner input=new Scanner(System.in); System.out.println("請輸入會員信息："); System.out.println("請輸入要修改的會員號："); String f=input.next(); System.out.println("請輸入修改的密碼："); String q=input.next(); String sqlst="update gg set mm='"+q+"' where id='"+f+"'"; Statement tatement=con.createStatement(); int result=tatement.executeUpdate(sqlst); System.out.println("操作成功！"); con.close(); stmt.close(); }catch(Exception e){ System.out.println(e); } System.out.println("是否返回上級菜單"); System.out.println("1.是"); System.out.println("2.否"); int m=Input.nextInt(); switch(m){ case 1: zhuck1.ZhucK1(); break; case 2: { System.out.println("歡迎下次再次使用");System.exit(-1);}; break; } } } package com.to.java; import java.util.Scanner; public class KeHu { Vds sj=new Vds(); public void kehu1(){ Scanner Input=new Scanner(System.in); ZhuCK1 zhuck1=new ZhuCK1(); System.out.println("******************************************************"+"\n\n"); System.out.println("1.顯示所有客戶信息"); System.out.println("2.添加客戶信息"); System.out.println("3.修改客戶信息"); System.out.println("4.查詢客戶信息"); System.out.println("5.返回上級菜單"); System.out.println("******************************************************"+"\n\n"); System.out.println("請輸入數(shù)字："); int a=Input.nextInt(); switch(a){ case 1: sj.x(); break; case 2: sj.j(); break; case 3: sj.xg(); break; case 4: sj.x();break; case 5: zhuck1.ZhucK1();break; } } } package com.to.java; public class GouWuXiTong { public static void main(String[] args){ ZhuCK zhuck=new ZhuCK(); zhuck.ZhucK(); } } package com.to.java; import java.sql.Connection; import java.sql.DriverManager; import java.sql.ResultSet; import java.sql.Statement; import java.util.Scanner; public class ZhuCK { Scanner Input=new Scanner(System.in); public void ZhucK(){ ZhuCK1 zhuck1=new ZhuCK1(); System.out.println("\t\t"+"歡迎使用我心我素購物系統(tǒng)"); System.out.println("******************************************************"+"\n\n"); System.out.println("\t\t"+"1.登陸系統(tǒng)"); System.out.println(); System.out.println("\t\t"+"2.退出"+"\n\n"); System.out.println("******************************************************"); int d=1; while(d!=2){ System.out.println("請輸入會員號："); String p=Input.next(); System.out.println("請輸入密碼："); String f=Input.next(); try{ Connection con=null; Statement stmt=null; ResultSet rs=null; Class.forName("sun.jdbc.odbc.JdbcOdbcDriver"); String ur1="jdbc:odbc:gg"; con=DriverManager.getConnection(ur1); stmt=con.createStatement(); String sqlstmt="select * from gg"; rs=stmt.executeQuery(sqlstmt); while(rs.next()){ String id=rs.getString("id"); String mm=rs.getString("mm"); if(id.equals(p)mm.equals(f)){ { System.out.println("請輸入數(shù)字："); int a=Input.nextInt(); switch(a){ case 1: zhuck1.ZhucK1(); break; case 2: break; }d=2; } } } }catch(Exception e){ System.out.println(e);} {System.out.println("輸入錯誤請再次輸入：");d=1;} } }} }
jsp網(wǎng)上購物代碼及操作！
1.index.jsp登陸界面：
%@ page language="java" import="java.util.*" pageEncoding="GB2312"%
%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%
%session.invalidate();% %--銷毀所有session對象--%
!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
html
head
base href="%=basePath%"
title購物車/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="styles.css"
--
/head
body
center
hr
請輸入用戶名，默認的為Guest
form action="checklogin.jsp" mothod=get
table width="40%" border="1"
tr bgcolor="#336600"
tddiv align="center"font color="FFFFFF"用戶登陸/font/div/td
/tr
tr align="center" bgcolor="#CCCCCC"
td用戶名：input type="password" name="userID"/td
/tr
tr align="center" bgcolor="#CCCCCC"
td口??令：input type="password" name="password"/td
/tr
tr align="center" bgcolor="#CCCCCC"
tdinput type="submit" value="登陸"/td
/tr
/table
/form
/center
/body
/html
2.checklogin.jsp登陸認證頁面：
%@ 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); % %--設置session超時為30分--%
!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
html
head
base href="%=basePath%"
titleMy JSP 'checklogin.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="styles.css"
--
/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購物車頁面
%@ 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
base href="%=basePath%"
title購物車/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="styles.css"
--
/head
body
br%@ include file="header.jsp" %
hr
font size="2"
jsp:useBean id="Car" class="web.Car" scope="session"
/jsp:useBean
pfont color="#804040" face="楷體_GB2312"
strong百貨商場，請盡情的選購商品添加到購物車！/strong
/font
%String str=response.encodeRedirectURL("add.jsp"); %
form action="%=str %" method="post" name="form"
select name="item" value="沒選擇"
option value="TV"電視機/option
option value="apple"蘋果/option
option value="coke"可口可樂/option
option value="milk"牛奶/option
option value="tea"茶葉/option
/select
pfont color="#804040" face="楷體_GB2312"
輸入購買的數(shù)量：
/font
input type="text" name="mount"
p
input type="radio" name="unit" value="個"個
input type="radio" name="unit" value="公斤"公斤
input type="radio" name="unit" value="臺"臺
input type="radio" name="unit" value="瓶"瓶p
input type="submit" value="提交添加"
/form
pfont color="#804040" face="楷體_GB2312"你的購物車里有如下商品：/font
font color="#FF8040" size="2"
%
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"
input type="submit" value="修改購物車中的商品"
/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
base href="%=basePath%"
title購物車/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="styles.css"
--
/head
body
%@ include file="header.jsp" %
hr
font size="2"
jsp:useBean id="Car" class="web.Car" scope="session"/jsp:useBeanbr
jsp:setProperty name="Car" property="*"/
%Car.add_h();%
font face="楷體_GB2312"
font color="#FF8040" size="2"
p您的購物車有如下商品：
%
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"
input type="submit" value="繼續(xù)購物"
/form
%String strl=response.encodeRedirectURL("selectRemoveGoods.jsp"); %
br
form action="%=strl %" method="post" neme="form"
input type="submit" value="修改購物車中的物品"
/form
/font
/font
%@ include file="tail.jsp"%
/body
/html
5.selectRemoveGoods.jsp選擇刪除商品：
%@ 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
base href="%=basePath%"
title購物/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="styles.css"
--
/head
body
br%@ include file="header.jsp" %
hr
jsp:useBean id="Car" class="web.Car" scope="session"
/jsp:useBeanbr
p選擇從購物車中刪除的物品：
%String str=response.encodeRedirectURL("removeWork.jsp"); %
form action="%=str %" method="post" name="form"
select name="deleteitem" size="1"
option value="TV"電視機/option
option value="apple"蘋果/option
option value="coke"可口可樂/option
option value="milk"牛奶/option
option value="tea"茶葉/option
/select
input type="submit" value="提交刪除"
/form
font face="楷體_GB2312"
font color="#FF8040" size="2"
p您的購物車有如下商品：
%
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"
input type="submit" value="繼續(xù)購物"
/form
%@include file="tail.jsp" %
/body
/html
6.removeWork.jsp刪除頁面：
%@ 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
base href="%=basePath%"
title購物車/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="styles.css"
--
/head
body
%@include file="header.jsp" %
hr
font size="2"
jsp:useBean id="Car" class="web.Car" scope="session"
/jsp:useBeanbr
%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("您刪除了貨物"+name);%
/font
font face="楷體_GB2312"
font color="#FF8040" size="2"
p您的購物車有如下商品：
%
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"
input type="submit" value="繼續(xù)購物"
/form
%String strl=response.encodeRedirectURL("selectRemoveGoods.jsp"); %
form action="%=strl %" method="post" neme="form"
input type="submit" value="修改購物車中的物品"
/form
/body
/html
7.header.jsp頁面頭部：
%@ page language="java" import="java.util.*" pageEncoding="GB2312"%
center
========================================================================br
購物車系統(tǒng)br
=======================================================================br
WELCOME！
jsp:getProperty name="Car" property="userID"/
當前時間是：
%=new java.util.Date().toLocaleString() %
br
/center
8.tail頁面尾部
%@ page language="java" import="java.util.*" pageEncoding="GB2312"%
center
hr
JSP+TOMCAT購物系統(tǒng)
/center
9.Car.java類
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; //商品數(shù)量
String unit=null; //商品單位
String userID; //用戶
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);
}
}
在線購物商品分類jsp，java代碼怎么寫，有父類子類的？
N種辦法
1、mybatis 配置文件 寫SQL 解決
2、通過JAVA service 通過父類信息查詢子類并封裝
3、提供一個接口，前臺二級聯(lián)動方式，點第一個給后臺傳值0 ，查詢父ID為0 的 當點擊第二個聯(lián)動的時候 把第一個信息的ID 給你傳過去，如 電子數(shù)碼ID 為1 那就傳1 后臺還是根據(jù)父類查詢，也就是 父類ID 1 這樣就查出 所對應的 子類信息了。
本文標題：網(wǎng)上購物商城java代碼 電商購物平臺java代碼
轉(zhuǎn)載注明：http://www.dlmjj.cn/article/docipdh.html
