WebRoot/admin/foodadd.jsp

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<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<%@page import="t.o.bean.randomno" %>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>
<%
	if(session.getAttribute("adminName")==null){
	response.getWriter().write("<script language='JavaScript'>" +
			"window.open('login.jsp',target='_top');" + 
			"</script>"
			);
	}
%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
  <head>
    <base href="<%=basePath%>">
    
    <title>My JSP 'foodadd.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">
	</head>
	<link rel="stylesheet" type="text/css" href="admin/css/admin.css"">
	<script type="text/javascript">
			function seeimg(){              
	  		if(document.getElementById("file").value!=""){                      
		  		document.getElementById("imgdisplay").src=document.getElementById("file").value;             
		  		document.getElementById("imgdisplay").style.display="block";   
		  	}
		  	else{
		  		document.getElementById("imgdisplay").style.display="none";             
		  	}                  
	  	}
	  	function check(){
	  		var food_name = document.getElementById("food_name").value;
	  		var food_img = document.getElementById("file").value;
	  		var food_type = document.getElementById("food_type").value;
	  		var food_price = document.getElementById("food_price").value;
	  		var food_cook = document.getElementById("food_cook").value;
	  		var food_synopsis = document.form1.food_synopsis.value;

	  		if(food_name=="")
	  		alert("食物名称不能为空！！");
	  		else if(food_img=="")
	  		alert("食物图片不能为空！！");
	  		else if(food_type=="--请选择--")
	  		alert("食物类型不能为空！！");
	  		else if(food_price=="")
	  		alert("食物价格不能为空！！");
	  		else if(food_cook=="")
	  		alert("主厨不能为空！！");
	  		else if(food_synopsis==""){
	  			alert("食物简介不能为空！！");
	  		}
	  		else{