基于javaweb+mysql的网上订餐在线点餐管理系统(前台、后台)

article/2025/9/29 21:59:43

运行环境

Java≥8、MySQL≥5.7、Tomcat≥8

开发工具

eclipse/idea/myeclipse/sts等均可配置运行

适用

课程设计，大作业，毕业设计，项目练习，学习演示等

功能说明

1.前台模块：（1）食品展示模块（2）食品查询模块（3）购物车模块（4）收银台模块（5）用户维护模块（6）订单查询模块（7）公告模块2.后台模块：（1）食品管理模块（2）用户管理模块（3）管理员维护模块（4）订单管理模块（5）公告管理模块（6）留言管理模块

eclipse或MyEclipse或idea

普通用户（前台）

管理员（后台）

技术框架

CSS JavaScript JSP Servlet JDBC MySQL

适用

课程设计，大作业，毕业设计，项目练习，学习演示等

		String beforehand = vd.getUnicode(request.getParameter("beforehand"));String nutrition = vd.getUnicode(request.getParameter("nutrition"));String stock = vd.getUnicode(request.getParameter("stock"));String emp = vd.getUnicode(request.getParameter("emp"));InsertUpdateDelBean ib = new InsertUpdateDelBean();String sql = "";String str = "";if(bookid != null && !bookid.equals("")){str = "/admin/booklist.jsp";sql = "delete from books where id='"+bookid+"'";ib.insertANDupdateANDdel(sql);}if(typeid != null && !typeid.equals("")){str = "/admin/typelist.jsp";sql = "delete from types where id='"+typeid+"'";int flag = ib.insertANDupdateANDdel(sql);if(flag == -1){request.setAttribute("error", "1");}}if(userid != null && !userid.equals("")){str = "/admin/userlist.jsp";sql = "delete from users where id='"+userid+"'";ib.insertANDupdateANDdel(sql);

            int j = i + s2.length();int k = j;s2 = "\"";int l = s.indexOf(s2,j);if(k > 0 && l > 0){s3 = s.substring(k,l);}}return s3;}private String getFileExt(String s){String s1; // = new String();int i = 0;int j = 0;

		String type = "";String path = "";String str = "";SmartUpload mySmartUpload = new SmartUpload();//initmySmartUpload.initialize(config,request,response);try {mySmartUpload.upload();name = mySmartUpload.getRequest().getParameter("name").trim();author = mySmartUpload.getRequest().getParameter("author").trim();price1 = mySmartUpload.getRequest().getParameter("price1").trim();brief = mySmartUpload.getRequest().getParameter("brief").trim();type = mySmartUpload.getRequest().getParameter("type").trim();int count = 0;SmartFile file = mySmartUpload.getFiles().getFile(0);String fileExt = file.getFileExt();path="/bookimg";InsertUpdateDelBean ib = new InsertUpdateDelBean();String sql = "insert into books(name,author,brief,type,imgpath,price1)" +" values('"+name+"','"+author+"','"+brief+"','"+type+"','"+path.substring(1)+"/"+file.getFileName()+"','"+price1+"')";

<%
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><meta http-equiv="Content-Language" content="zh-cn"><base href="<%=basePath%>"><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"><script language="JavaScript" src="img/date.js"></script></head>
<style>
<!--
*{padding:0;margin:0}
.ry{background:#FFF8F0}

        String s8 = ""; //new String();String s9 = ""; //new String();String s10 = ""; //new String();m_totalBytes = m_request.getContentLength();m_binArray = new byte[m_totalBytes];int j;for(;i < m_totalBytes;i += j){try{m_request.getInputStream();j = m_request.getInputStream().read(m_binArray,i,m_totalBytes - i);}catch(Exception exception){throw new SmartUploadException("Unable to upload.");}}for(;!flag1 && m_currentIndex < m_totalBytes;m_currentIndex++){if(m_binArray[m_currentIndex] == 13){flag1 = true;}else

						alShop.add(""+sum);shopping.add(alShop);}}}if(del != null && !del.equals("") && shopping !=null && shopping.size()!= 0){shopping.remove(Integer.parseInt(del));//删除商品}session.setAttribute("shopping",shopping);if(remove != null && !remove.equals("") && session.getAttribute("shopping") != null && !session.getAttribute("shopping").equals("")){session.removeAttribute("shopping");//清空购物车}}RequestDispatcher rd=request.getRequestDispatcher(str);rd.forward(request,response);}public void doPost(HttpServletRequest request, HttpServletResponse response)throws ServletException, IOException {doGet(request,response);}/*** Initialization of the servlet. <br>*


</script>
<jsp:include flush="true" page="/servlet/SessLoginServlet"/><body>  <form action="servlet/ModifyUserServlet" name="form1" method="post" onSubmit="return check11()"><jsp:include flush="true" page="top.jsp"/><div align="center"><br>

private String getDataFieldValue(String s,String s1){String s2 = ""; // = new String();String s3 = ""; // = new String();int i = 0;//boolean flag = false;//boolean flag1 = false;//boolean flag2 = false;s2 = s1 + "=" + '"';i = s.indexOf(s2);if(i > 0){int j = i + s2.length();int k = j;s2 = "\"";int l = s.indexOf(s2,j);if(k > 0 && l > 0)

                file.setFileExt(s5);file.setFilePathName(s6);file.setIsMissing(s6.length() == 0);file.setContentType(s7);file.setContentDisp(s8);file.setTypeMIME(s9);file.setSubTypeMIME(s10);if(s7.indexOf("application/x-macbinary") > 0){m_startData = m_startData + 128;}file.setSize((m_endData - m_startData) + 1);file.setStartData(m_startData);file.setEndData(m_endData);m_files.addFile(file);}else{String s11 = new String(m_binArray,m_startData,(m_endData - m_startData) + 1);

                j++;}}return j;}//Addprivate String[] FileNames;public String[] getFileNames(){//Method may expose internal representation by returning array//Returning an array value stored in one of the object's fields exposes the internal representation of the object.? For classes shared by other untrusted classes, this could potentially be a security issue.? Returning a new copy of the array is better approach in many situations.String[] vFileNames = new String[FileNames.length];System.arraycopy(FileNames,0,vFileNames,0,FileNames.length);return vFileNames;}public int getSize(){return m_totalBytes;}public byte getBinaryData(int i){byte byte0;try