web的购物网站商城的设计与实现（毕设）

目录

购物系统的环境

网上购物系统模块图

购物系统的E-R图

具体功能图像展示

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购物系统的环境

myeclipse+sqlserver+jsp+mvc框架+apache

网上购物系统模块图

网上购物系统前台模块图

网上购物系统的后台模块图

购物系统的E-R图

具体功能图像展示

主界面

注册界面

登陆界面

下面主要是验证码的核心代码

<%@ page language="java" contentType="image/jpeg; charset=UTF-8"%>
<%@ page import="java.util.*,java.awt.Color,java.awt.image.BufferedImage,java.awt.Graphics,javax.imageio.*,java.awt.*"%>
<%!
	public Color getColor() {//实现随机产生颜色
		Random ran = new Random();
		int r = ran.nextInt(256);
		int g = ran.nextInt(256);
		int b = ran.nextInt(256);
		return new Color(r, g, b);
	}

    public String getNum() {	//随机产生1000-9999验证码
		int ran = (int) (Math.random() * 9000) + 1000;
		return String.valueOf(ran);
	}%>
	
	<%
	//禁止缓存，防止验证码过期
	response.setHeader("Pragma","no-cache");
	response.setHeader("Cache-control","no-cache");
	response.setHeader("Expires", "0");
	
	//绘制验证码
	BufferedImage image=new BufferedImage(90,40,BufferedImage.TYPE_INT_RGB);
	//画笔
	Graphics graphics= image.getGraphics();
	//绘制干扰线条
	graphics.fillRect(0,0, 90, 40);
	for(int i=0;i<70;i++){//60是指随机产生60条干扰线
		Random ran=new Random();
	  int xBegin=ran.nextInt(90);//产生小于90的随机整数
	  int yBegin=ran.nextInt(40);//产生小于40的随机整数
	  int xEnd=ran.nextInt(xBegin+10);
	  int yEnd=ran.nextInt(yBegin+10);
	    graphics.setColor(getColor());
	    graphics.drawLine(xBegin, yBegin, xEnd, yEnd);
	
	}
	graphics.setFont(new Font("seif",Font.BOLD,23));//给随机数设置字体样式
	//绘制验证码
	graphics.setColor(Color.black);//设置验证码的颜色
	String checkCode=getNum();//随机产生的4个数字
	StringBuffer sb=new StringBuffer();
	for(int i=0;i

购物车界面

商品添加界面 

商品修改界面 

下面主要实现分页的核心代码

//封装了某一页有关的所有信息
public class PageModel {
	private List waresList;
	private int pageSize = 4;// 显示条数
	private int totalPages;// 显示总页数
	private int pageNo;
	private List orderList;
	public int getPageNo() {
		return pageNo;
	}

	public void setPageNo(int pageNo) {
		this.pageNo = pageNo;
	}
	public List getOrderList() {
		return orderList;
	}

	public void setOrderList(List orderList) {
		this.orderList = orderList;
	}


	public List getWaresList() {
		return waresList;
	}

	public void setWaresList(List waresList) {
		this.waresList = waresList;
	}

	public int getPageSize() {
		return pageSize;
	}

	public void setPageSize(int pageSize) {
		this.pageSize = pageSize;
	}

	public int getTotalPages() {
		if (totalPages % 4 == 0)
			return totalPages / 4;
		else
			return totalPages / 4 + 1;
	}

	public void setTotalPages(int totalPages) {
		this.totalPages = totalPages;
	}

	public int getTopPage() {// shouye
		return 1;
	}

	public int getPreviousPage() {
		if (pageNo <= 1) {
			return 1;
		} else {
			return pageNo - 1;
		}
	}

	public int getNextPage() {// 下一页
		if (pageNo >= getTotalPages()) {
			return getTotalPages();
		} else {
			return pageNo + 1;
		}
	}

	public int getLastPage() {// 尾页
		return getTotalPages();
	}

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该项目仅供学习，没有其他用途