基于Java网上花店系统设计实现（源码+部署文档）
2023-12-26 18:59:08
博主介绍： ?至今服务客户已经1000+、专注于Java技术领域、项目定制、技术答疑、开发工具、毕业项目实战 ?
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https://blog.csdn.net/java18343246781/category_12537229.htmlJava各种开发工具资源包网站
系列文章目录
前言
? 这个网上花店系统的前端采用了先进的技术，涵盖了多项关键功能，以满足用户在选购鲜花时的各种需求。以下是其中一些主要功能的简要介绍：
商城列表：用户可以通过商城列表轻松浏览各类精选鲜花，系统通过清晰的界面呈现丰富的花卉信息，使用户能够迅速找到心仪的花束。
加入购物车：购物车是用户选购鲜花的中转站，通过简单的操作，用户可以将心仪的花束加入购物车，方便随时查看已选鲜花和进行结算。
登录注册：为了提供个性化的购物服务，系统支持用户注册和登录功能，使用户能够轻松管理个人信息、查看订单历史等。
商品详情：用户可以查看每一款鲜花的详细信息，包括花材、花语等，以更好地了解并选择适合自己或送人的鲜花。
订单列表：用户可以方便地查看自己的订单历史，包括已完成和待处理的订单，提供了全面的订单管理功能。
下单：系统简化了下单流程，用户只需几步操作即可完成购物，享受快捷、愉悦的购物服务。
商品分类：通过合理的商品分类，用户可以迅速找到所需花卉，提高购物效率。
这个网上花店系统通过先进的前端设计，为用户打造了一个直观、美观的购物平台，使得选购鲜花成为一种愉快的体验。希望本系统能够为用户提供更多精彩的花卉选择，让鲜花的美好传递更加便捷、温馨。
一、运行环境
????????该系统采用了JDK 1.8作为基础开发环境，并搭建在JavaWeb框架上，利用Servlet、JSP等技术简化了Web应用程序的开发。作为数据存储后端，选择了MySQL数据库，并通过JDBC技术实现与数据库的交互，包括执行SQL查询和更新操作。JSP技术用于动态生成用户界面，将Java代码嵌入HTML页面，提供了更灵活、交互性更强的用户体验。这一组技术的有机结合使得系统具备了完整的Web开发能力，为用户提供高效、稳定的在线服务。
二、代码示例
代码如下（示例）：
package com.itbaizhan.servlet;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.List;
import java.util.Map;
import javax.servlet.RequestDispatcher;
import javax.servlet.ServletConfig;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import com.itbaizhan.bean.Dingdan;
import com.itbaizhan.bean.Fenlei;
import com.itbaizhan.bean.Gonggao;
import com.itbaizhan.bean.Product;
import com.itbaizhan.bean.User;
import com.itbaizhan.dao.DingdanDao;
import com.itbaizhan.dao.FenleiDao;
import com.itbaizhan.dao.GonggaoDao;
import com.itbaizhan.dao.ProductDao;
import com.itbaizhan.dao.UserDao;
import com.itbaizhan.util.Util;
import com.jspsmart.upload.SmartUpload;
import com.jspsmart.upload.SmartUploadException;
//后台servlet，用于处理后台的所有请求1
public class ManageServlet extends HttpServlet {
private static final long serialVersionUID = 1L;
public void init(ServletConfig config) throws ServletException {
super.init(config);
}
public void destroy() {
super.destroy();
}
protected void doGet(HttpServletRequest req, HttpServletResponse resp)
throws ServletException, IOException {
this.doPost(req, resp);
}
protected void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
//设置获取的参数的编码格式
request.setCharacterEncoding("utf-8");
//获取绝对地址
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
//设置响应输出的字符串格式
response.setCharacterEncoding("utf-8");response.setContentType("text/html; charset=utf-8");
//获取输出对象
PrintWriter writer = response.getWriter();
//获取页面请求地址
String uri = request.getRequestURI();
String[] s = uri.split("/");
String method = s[3];
//初始化跳转的地址
String url ="";
int pagenum = 1;//当前页
int pagesize = 15;//每页显示的数量
//初始化调用的数据库操作对象
UserDao userDao = new UserDao();
FenleiDao fenleiDao = new FenleiDao();
ProductDao productDao = new ProductDao();
GonggaoDao gonggaoDao = new GonggaoDao();
DingdanDao dingdanDao = new DingdanDao();
//用户登录
if("login".equals(method)){
//从jsp页面获取用户名和密码
String username = request.getParameter("username");
String password = request.getParameter("password");
//查询用户名和密码是否匹配
User bean = userDao.selectBean(" where username='"+username+"' and password ='"+password+"' and role=1 ");
if(bean!=null){
HttpSession session = request.getSession();
session.setAttribute("manage", bean);
writer.print("<script language='javascript'>alert('登录成功');window.location.href='"+basePath+"manage/index.jsp'; </script>");
}else{
writer.print("<script language='javascript'>alert('用户名或者密码错误');window.location.href='"+basePath+"manage/login.jsp';</script>");
}
}
//退出操作
else if("loginout".equals(method)){
HttpSession session =request.getSession();
session.removeAttribute("manage");
writer.print("<script language='javascript'>alert('退出成功');window.location.href='"+basePath+"manage/login.jsp';</script>");
}
//跳转到修改密码页面
else if("passwordupdate".equals(method)){
request.setAttribute("biaoti", "修改密码");
request.setAttribute("url", "manageServlet/passwordupdate2");
RequestDispatcher dispatcher = request.getRequestDispatcher("/manage/passwordupdate.jsp");
dispatcher.forward(request, response);
}
//修改密码操作
else if("passwordupdate2".equals(method)){
//从JSP获取信息
String password1 = request.getParameter("password1");
String password2 = request.getParameter("password2");
HttpSession session = request.getSession();
User user = (User)session.getAttribute("manage");
User u = userDao.selectBean(" where username='"+user.getUsername()+"' and password='"+password1+"' ");
if(u!=null){
u.setPassword(password2);
userDao.updateBean(u);
writer.print("<script language='javascript'>alert('操作成功');window.location.href='"+basePath+"manageServlet/passwordupdate'; </script>");
}else{
writer.print("<script language='javascript'>alert('操作失败，原密码错误！');window.location.href='"+basePath+"manageServlet/passwordupdate'; </script>");
}
}
//分类信息列表
else if("fenleilist".equals(method)){
//定义跳转的地址
url = "manageServlet/fenleilist";
//获取查询的信息
String fname = request.getParameter("fname");
//组装查询的SQL语句
StringBuffer sb = new StringBuffer();
sb.append(" where ");
if(fname!=null&&!"".equals(fname)){
sb.append(" fname like '%"+fname+"%' ");
sb.append(" and ");
request.setAttribute("fname", fname);
}
sb.append(" 1=1 order by id desc ");
String where = sb.toString();
//获取当前的页数
if(request.getParameter("pagenum")!=null){
pagenum = Integer.parseInt(request.getParameter("pagenum"));
}
//从数据库查询列表信息，带分页功能
Map<String,List<Fenlei>> map = fenleiDao.getList(pagenum,pagesize,url,where);
String pagerinfo = map.keySet().iterator().next();
List<Fenlei> list = map.get(pagerinfo);
//返回给jsp页面的信息
request.setAttribute("pagerinfo", pagerinfo);
request.setAttribute("list", list);
request.setAttribute("biaoti", "分类信息列表");
request.setAttribute("url", "manageServlet/fenleilist");
request.setAttribute("url2", "manageServlet/fenlei");
//定义跳转的地址
RequestDispatcher dispatcher = request.getRequestDispatcher("/manage/fenlei/fenleilist.jsp");
//跳转操作
dispatcher.forward(request, response);
}
//跳转到添加分类信息页面
else if("fenleiadd".equals(method)){
request.setAttribute("biaoti", "添加分类信息");
request.setAttribute("url", "manageServlet/fenleiadd2");
RequestDispatcher dispatcher = request.getRequestDispatcher("/manage/fenlei/fenleiadd.jsp");
dispatcher.forward(request, response);
}
//添加分类信息操作
else if("fenleiadd2".equals(method)){
//从JSP获取信息
String fname = request.getParameter("fname");
//定义对象
Fenlei bean = new Fenlei();
//设置对象的属性
bean.setFname(fname);
//插入数据库
fenleiDao.insertBean(bean);
//返回给JSP页面
writer.print("<script language='javascript'>alert('操作成功');window.location.href='"+basePath+"manageServlet/fenleilist'; </script>");
}
//跳转到更新分类信息页面
else if("fenleiupdate".equals(method)){
//通过ID获取对象
String id = request.getParameter("id");
Fenlei bean = fenleiDao.selectBean(" where id= "+id);
//把对象传给jsp页面
request.setAttribute("bean", bean);
request.setAttribute("biaoti", "更新分类信息");
request.setAttribute("url", "manageServlet/fenleiupdate2?id="+bean.getId());
RequestDispatcher dispatcher = request.getRequestDispatcher("/manage/fenlei/fenleiupdate.jsp");
dispatcher.forward(request, response);
}
//更新分类信息操作
else if("fenleiupdate2".equals(method)){
//从JSP获取信息
String fname = request.getParameter("fname");
//通过ID获取对象
String id = request.getParameter("id");
Fenlei bean = fenleiDao.selectBean(" where id= "+id);
//更新对象属性
bean.setFname(fname);
//更新操作
fenleiDao.updateBean(bean);
writer.print("<script language='javascript'>alert('操作成功');window.location.href='"+basePath+"manageServlet/fenleilist'; </script>");
}
//删除分类信息操作
else if("fenleidelete".equals(method)){
//通过ID获取对象
String id = request.getParameter("id");
Fenlei bean = fenleiDao.selectBean(" where id= "+id);
//删除对象
fenleiDao.deleteBean(bean);
writer.print("<script language='javascript'>alert('操作成功');window.location.href='"+basePath+"manageServlet/fenleilist'; </script>");
}
//跳转到查看分类信息页面
else if("fenleiupdate3".equals(method)){
request.setAttribute("biaoti", "查看分类信息");
//通过ID获取对象
String id = request.getParameter("id");
Fenlei bean = fenleiDao.selectBean(" where id= "+id);
//把对象传给jsp页面
request.setAttribute("bean", bean);
RequestDispatcher dispatcher = request.getRequestDispatcher("/manage/fenlei/fenleiupdate3.jsp");
dispatcher.forward(request, response);
}
//商品信息列表
else if("productlist".equals(method)){
//定义跳转的地址
url = "manageServlet/productlist";
//获取查询的信息
String fname = request.getParameter("fname");
request.setAttribute("fenleilist", fenleiDao.getList(""));
String pname = request.getParameter("pname");
//组装查询的SQL语句
StringBuffer sb = new StringBuffer();
sb.append(" where ");
if(fname!=null&&!"".equals(fname)){
sb.append(" fname like '%"+fname+"%' ");
sb.append(" and ");
request.setAttribute("fname", fname);
}
if(pname!=null&&!"".equals(pname)){
sb.append(" pname like '%"+pname+"%' ");
sb.append(" and ");
request.setAttribute("pname", pname);
}
sb.append(" 1=1 order by id desc ");
String where = sb.toString();
//获取当前的页数
if(request.getParameter("pagenum")!=null){
pagenum = Integer.parseInt(request.getParameter("pagenum"));
}
//从数据库查询列表信息，带分页功能
Map<String,List<Product>> map = productDao.getList(pagenum,pagesize,url,where);
String pagerinfo = map.keySet().iterator().next();
List<Product> list = map.get(pagerinfo);
//返回给jsp页面的信息
request.setAttribute("pagerinfo", pagerinfo);
request.setAttribute("list", list);
request.setAttribute("biaoti", "商品信息列表");
request.setAttribute("url", "manageServlet/productlist");
request.setAttribute("url2", "manageServlet/product");
//定义跳转的地址
RequestDispatcher dispatcher = request.getRequestDispatcher("/manage/product/productlist.jsp");
//跳转操作
dispatcher.forward(request, response);
}
//跳转到添加商品信息页面
else if("productadd".equals(method)){
request.setAttribute("biaoti", "添加商品信息");
request.setAttribute("url", "manageServlet/productadd2");
request.setAttribute("fenleilist", fenleiDao.getList(""));
RequestDispatcher dispatcher = request.getRequestDispatcher("/manage/product/productadd.jsp");
dispatcher.forward(request, response);
}
//添加商品信息操作
else if("productadd2".equals(method)){
//从JSP获取信息
String fenleiid = request.getParameter("fenleiid");
String jiage = request.getParameter("jiage");
String miaoshu = request.getParameter("miaoshu");
String pname = request.getParameter("pname");
String count = request.getParameter("count");
System.out.println("count=>"+count);
Fenlei fenlei = fenleiDao.selectBean(" where id= "+fenleiid);
//定义对象
Product bean = new Product();
//设置对象的属性
bean.setCreatetime(Util.getTime());
bean.setDianjishu(0);
bean.setFenleiid(fenlei.getId()+"");
bean.setFname(fenlei.getFname());
bean.setJiage(Double.parseDouble(jiage));
bean.setMiaoshu(miaoshu);
bean.setPname(pname);
bean.setTuijian("未推荐");
bean.setXiaoliang(0);
bean.setCount(Integer.parseInt(count));
//插入数据库
productDao.insertBean(bean);
//返回给JSP页面
writer.print("<script language='javascript'>alert('操作成功');window.location.href='"+basePath+"manageServlet/productlist'; </script>");
}
//跳转到更新商品信息页面
else if("productupdate".equals(method)){
//通过ID获取对象
String id = request.getParameter("id");
Product bean = productDao.selectBean(" where id= "+id);
request.setAttribute("fenleilist", fenleiDao.getList(""));
//把信息传给jsp页面
request.setAttribute("bean", bean);
request.setAttribute("biaoti", "更新商品信息");
request.setAttribute("url", "manageServlet/productupdate2?id="+bean.getId());
RequestDispatcher dispatcher = request.getRequestDispatcher("/manage/product/productupdate.jsp");
dispatcher.forward(request, response);
}
//更新商品信息操作
else if("productupdate2".equals(method)){
//从JSP获取信息
String fenleiid = request.getParameter("fenleiid");
String imgpath = request.getParameter("imgpath");
String jiage = request.getParameter("jiage");
String miaoshu = request.getParameter("miaoshu");
String pname = request.getParameter("pname");
String count = request.getParameter("count");
Fenlei fenlei = fenleiDao.selectBean(" where id= "+fenleiid);
//通过ID获取对象
String id = request.getParameter("id");
Product bean = productDao.selectBean(" where id= "+id);
//更新对象属性
bean.setFenleiid(fenlei.getId()+"");
bean.setFname(fenlei.getFname());
bean.setImgpath(imgpath);
bean.setJiage(Double.parseDouble(jiage));
bean.setMiaoshu(miaoshu);
bean.setPname(pname);
bean.setCount(Integer.parseInt(count));
//更新操作
productDao.updateBean(bean);
writer.print("<script language='javascript'>alert('操作成功');window.location.href='"+basePath+"manageServlet/productlist'; </script>");
}
//跳转到上传商品图片页面
else if("productupdate5".equals(method)){
//通过ID获取对象
String id = request.getParameter("id");
Product bean = productDao.selectBean(" where id= "+id);
//把信息传给jsp页面
request.setAttribute("bean", bean);
request.setAttribute("biaoti", "上传商品图片");
request.setAttribute("url", "manageServlet/productupdate6?id="+bean.getId());
RequestDispatcher dispatcher = request.getRequestDispatcher("/manage/product/productupdate5.jsp");
dispatcher.forward(request, response);
}
//上传商品图片操作
else if("productupdate6".equals(method)){
SmartUpload su = new SmartUpload();
su.initialize(this.getServletConfig(), request, response);
//限制上传文件的最大长度。
su.setMaxFileSize(1500000*8);
//设定允许上传的文件（通过扩展名限制）
su.setAllowedFilesList("jpg,gif,bmp,JPG,GIF,BMP");
String imgpath="";
try {
// 上传文件
su.upload();
// 将上传文件全部保存到指定目录
com.jspsmart.upload.File file = su.getFiles().getFile(0);
if (!file.isMissing())
{
//将附件以 当前时间+附件扩展名 作为文件名保存
java.text.SimpleDateFormat dateFormatter = new java.text.SimpleDateFormat("yyyyMMddHHmmss");
String sNowTime = dateFormatter.format(new java.util.Date());
imgpath = sNowTime+"."+ file.getFileExt();
file.saveAs("/uploadfile/"+imgpath);
}
} catch (SmartUploadException e) {
e.printStackTrace();
}
//通过ID获取对象
String id = request.getParameter("id");
Product bean = productDao.selectBean(" where id= "+id);
//更新对象属性
bean.setImgpath(imgpath);
//更新操作
productDao.updateBean(bean);
writer.print("<script language='javascript'>alert('操作成功');window.location.href='"+basePath+"manageServlet/productlist'; </script>");
}
//删除商品信息操作
else if("productdelete".equals(method)){
//通过ID获取对象
String id = request.getParameter("id");
Product bean = productDao.selectBean(" where id= "+id);
//删除对象
productDao.deleteBean(bean);
writer.print("<script language='javascript'>alert('操作成功');window.location.href='"+basePath+"manageServlet/productlist'; </script>");
}
//推荐商品信息操作
else if("productdelete2".equals(method)){
//通过ID获取对象
String id = request.getParameter("id");
Product bean = productDao.selectBean(" where id= "+id);
bean.setTuijian("已推荐");
productDao.updateBean(bean);
writer.print("<script language='javascript'>alert('操作成功');window.location.href='"+basePath+"manageServlet/productlist'; </script>");
}
//删除商品信息操作
else if("productdelete3".equals(method)){
//通过ID获取对象
String id = request.getParameter("id");
Product bean = productDao.selectBean(" where id= "+id);
bean.setTuijian("未推荐");
productDao.updateBean(bean);
writer.print("<script language='javascript'>alert('操作成功');window.location.href='"+basePath+"manageServlet/productlist'; </script>");
}
//跳转到查看商品信息页面
else if("productupdate3".equals(method)){
request.setAttribute("biaoti", "查看商品信息");
//通过ID获取对象
String id = request.getParameter("id");
Product bean = productDao.selectBean(" where id= "+id);
//把对象传给jsp页面
request.setAttribute("bean", bean);
RequestDispatcher dispatcher = request.getRequestDispatcher("/manage/product/productupdate3.jsp");
dispatcher.forward(request, response);
}
//公告信息列表
else if("gonggaolist".equals(method)){
//定义跳转的地址
url = "manageServlet/gonggaolist";
//获取查询的信息
String biaotibiaoti = request.getParameter("biaotibiaoti");
//组装查询的SQL语句
StringBuffer sb = new StringBuffer();
sb.append(" where ");
if(biaotibiaoti!=null&&!"".equals(biaotibiaoti)){
sb.append(" biaoti like '%"+biaotibiaoti+"%' ");
sb.append(" and ");
request.setAttribute("biaoti", biaotibiaoti);
}
sb.append(" 1=1 order by id desc ");
String where = sb.toString();
//获取当前的页数
if(request.getParameter("pagenum")!=null){
pagenum = Integer.parseInt(request.getParameter("pagenum"));
}
//从数据库查询列表信息，带分页功能
Map<String,List<Gonggao>> map = gonggaoDao.getList(pagenum,pagesize,url,where);
String pagerinfo = map.keySet().iterator().next();
List<Gonggao> list = map.get(pagerinfo);
//返回给jsp页面的信息
request.setAttribute("pagerinfo", pagerinfo);
request.setAttribute("list", list);
request.setAttribute("biaoti", "公告信息列表");
request.setAttribute("url", "manageServlet/gonggaolist");
request.setAttribute("url2", "manageServlet/gonggao");
//定义跳转的地址
RequestDispatcher dispatcher = request.getRequestDispatcher("/manage/gonggao/gonggaolist.jsp");
//跳转操作
dispatcher.forward(request, response);
}
//跳转到添加公告信息页面
else if("gonggaoadd".equals(method)){
request.setAttribute("biaoti", "添加公告信息");
request.setAttribute("url", "manageServlet/gonggaoadd2");
RequestDispatcher dispatcher = request.getRequestDispatcher("/manage/gonggao/gonggaoadd.jsp");
dispatcher.forward(request, response);
}
//添加公告信息操作
else if("gonggaoadd2".equals(method)){
//从JSP获取信息
String biaoti = request.getParameter("biaoti");
String neirong = request.getParameter("neirong");
//定义对象
Gonggao bean = new Gonggao();
//设置对象的属性
bean.setBiaoti(biaoti);
bean.setNeirong(neirong);
bean.setShijian(Util.getTime());
//插入数据库
gonggaoDao.insertBean(bean);
//返回给JSP页面
writer.print("<script language='javascript'>alert('操作成功');window.location.href='"+basePath+"manageServlet/gonggaolist'; </script>");
}
//跳转到更新公告信息页面
else if("gonggaoupdate".equals(method)){
//通过ID获取对象
String id = request.getParameter("id");
Gonggao bean = gonggaoDao.selectBean(" where id= "+id);
//把对象传给jsp页面
request.setAttribute("bean", bean);
request.setAttribute("biaoti", "更新公告信息");
request.setAttribute("url", "manageServlet/gonggaoupdate2?id="+bean.getId());
RequestDispatcher dispatcher = request.getRequestDispatcher("/manage/gonggao/gonggaoupdate.jsp");
dispatcher.forward(request, response);
}
//更新公告信息操作
else if("gonggaoupdate2".equals(method)){
//从JSP获取信息
String biaoti = request.getParameter("biaoti");
String neirong = request.getParameter("neirong");
//通过ID获取对象
String id = request.getParameter("id");
Gonggao bean = gonggaoDao.selectBean(" where id= "+id);
//更新对象属性
bean.setBiaoti(biaoti);
bean.setNeirong(neirong);
//更新操作
gonggaoDao.updateBean(bean);
writer.print("<script language='javascript'>alert('操作成功');window.location.href='"+basePath+"manageServlet/gonggaolist'; </script>");
}
//删除公告信息操作
else if("gonggaodelete".equals(method)){
//通过ID获取对象
String id = request.getParameter("id");
Gonggao bean = gonggaoDao.selectBean(" where id= "+id);
//删除对象
gonggaoDao.deleteBean(bean);
writer.print("<script language='javascript'>alert('操作成功');window.location.href='"+basePath+"manageServlet/gonggaolist'; </script>");
}
//跳转到查看公告信息页面
else if("gonggaoupdate3".equals(method)){
request.setAttribute("biaoti", "查看公告信息");
//通过ID获取对象
String id = request.getParameter("id");
Gonggao bean = gonggaoDao.selectBean(" where id= "+id);
//把对象传给jsp页面
request.setAttribute("bean", bean);
RequestDispatcher dispatcher = request.getRequestDispatcher("/manage/gonggao/gonggaoupdate3.jsp");
dispatcher.forward(request, response);
}
//订单信息列表
else if("dingdanlist".equals(method)){
//定义跳转的地址
url = "manageServlet/dingdanlist";
//获取查询的信息
String status = request.getParameter("status");
String orderid = request.getParameter("orderid");
//组装查询的SQL语句
StringBuffer sb = new StringBuffer();
sb.append(" where ");
if(orderid!=null&&!"".equals(orderid)){
sb.append(" orderid like '%"+orderid+"%' ");
sb.append(" and ");
request.setAttribute("orderid", orderid);
}
if(status!=null&&!"".equals(status)){
sb.append(" status like '%"+status+"%' ");
sb.append(" and ");
request.setAttribute("status", status);
}
sb.append(" 1=1 order by id desc ");
String where = sb.toString();
//获取当前的页数
if(request.getParameter("pagenum")!=null){
pagenum = Integer.parseInt(request.getParameter("pagenum"));
}
//从数据库查询列表信息，带分页功能
Map<String,List<Dingdan>> map = dingdanDao.getList(pagenum,pagesize,url,where);
String pagerinfo = map.keySet().iterator().next();
List<Dingdan> list = map.get(pagerinfo);
//返回给jsp页面的信息
request.setAttribute("pagerinfo", pagerinfo);
request.setAttribute("list", list);
request.setAttribute("biaoti", "订单信息列表");
request.setAttribute("url", "manageServlet/dingdanlist");
request.setAttribute("url2", "manageServlet/dingdan");
//定义跳转的地址
RequestDispatcher dispatcher = request.getRequestDispatcher("/manage/dingdan/dingdanlist.jsp");
//跳转操作
dispatcher.forward(request, response);
}
//处理订单信息操作
else if("dingdandelete".equals(method)){
//通过ID获取对象
String id = request.getParameter("id");
Dingdan bean = dingdanDao.selectBean(" where id= "+id);
bean.setStatus("已处理");
dingdanDao.updateBean(bean);
writer.print("<script language='javascript'>alert('操作成功');window.location.href='"+basePath+"manageServlet/dingdanlist'; </script>");
}
//跳转到查看订单信息页面
else if("dingdanupdate3".equals(method)){
request.setAttribute("biaoti", "查看订单信息");
//通过ID获取对象
String id = request.getParameter("id");
Dingdan bean = dingdanDao.selectBean(" where id= "+id);
//把对象传给jsp页面
request.setAttribute("bean", bean);
RequestDispatcher dispatcher = request.getRequestDispatcher("/manage/dingdan/dingdanupdate3.jsp");
dispatcher.forward(request, response);
}
//用户信息列表
else if("userlist".equals(method)){
//定义跳转的地址
url = "manageServlet/userlist";
//获取查询的信息
String username = request.getParameter("username");
//组装查询的SQL语句
StringBuffer sb = new StringBuffer();
sb.append(" where ");
if(username!=null&&!"".equals(username)){
sb.append(" username like '%"+username+"%' ");
sb.append(" and ");
request.setAttribute("username", username);
}
sb.append(" role=0 order by id desc ");
String where = sb.toString();
//获取当前的页数
if(request.getParameter("pagenum")!=null){
pagenum = Integer.parseInt(request.getParameter("pagenum"));
}
//从数据库查询列表信息，带分页功能
Map<String,List<User>> map = userDao.getList(pagenum,pagesize,url,where);
String pagerinfo = map.keySet().iterator().next();
List<User> list = map.get(pagerinfo);
//返回给jsp页面的信息
request.setAttribute("pagerinfo", pagerinfo);
request.setAttribute("list", list);
request.setAttribute("biaoti", "用户信息列表");
request.setAttribute("url", "manageServlet/userlist");
request.setAttribute("url2", "manageServlet/user");
//定义跳转的地址
RequestDispatcher dispatcher = request.getRequestDispatcher("/manage/user/userlist.jsp");
//跳转操作
dispatcher.forward(request, response);
}
//删除用户信息操作
else if("userdelete".equals(method)){
//通过ID获取对象
String id = request.getParameter("id");
User bean = userDao.selectBean(" where id= "+id);
userDao.deleteBean(bean);
writer.print("<script language='javascript'>alert('操作成功');window.location.href='"+basePath+"manageServlet/userlist'; </script>");
}
}
}
三、系统展示
网上花店首页：展示花店商品信息，可以通过名称和价格模糊查询。能够加入购物车、查看商品详情、观察价格以及库存数量、可以按照分类来查询商品。
网上花店详情页面：包含商品介绍、价格、点击次数、并且可以加入购物车。
订单详情页面：可以查看订单信息。
订单列表：查看历史订单
分类管理：维护分类信息。
订单管理：管理所有用户下单的订单信息。
商品管理：管理员可以在后台进行商品发布
系统公告：管理员可在后端发布公告通知。
用户管理：管理员可以对所有用户进行管理。
文章来源:https://blog.csdn.net/java18343246781/article/details/135224710
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本文来自互联网用户投稿，该文观点仅代表作者本人，不代表本站立场。本站仅提供信息存储空间服务，不拥有所有权，不承担相关法律责任。 如若内容造成侵权/违法违规/事实不符，请联系我的编程经验分享网邮箱：veading@qq.com进行投诉反馈，一经查实，立即删除！