idea版本/高校新生报到系统/report/web/admin/classesManage.jsp

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<%@ page language="java" pageEncoding="UTF-8"%>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core"%>
<%@ taglib prefix="fmt" uri="http://java.sun.com/jsp/jstl/fmt"%>
<%@ page isELIgnored="false" %> 
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">

<html> 
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<link rel="stylesheet" href="<%=path%>/admin/css/sapar.css" />
<link rel="stylesheet" type="text/css" href="<%=path%>/admin/css/common.css" />
<link rel="stylesheet" type="text/css" href="<%=path%>/admin/css/my_order.css" />
<link rel="stylesheet" type="text/css" href="<%=path%>/admin/css/system_index.css" />
<script type="text/javascript" src="<%=request.getContextPath()%>/js/jquery-3.2.1.min.js"></script>
<title>系统首页</title>
<script type="text/javascript">
  
		    function classescheck()
		    {   

		    	if(document.f1.claname.value=="")
				 {
				 	alert("请输入班级名称");
					return false;
				 }
		        document.f1.submit();
		    }
    </script>
      <c:if test="${not empty msg}"> 
   <script>alert('${msg}')
      window.location.href="<%=path %>/qimu/classesManage";</script> 
 </c:if>
 
 
 <script type="text/javascript">
	 function collegechang()
	 {
			var collid = document.getElementById("collid");
			$.ajax({
				url : "<%=path%>/qimu/findBymajor?collid="+collid.value,
				type:"post",
				success :  ajaxSendCallBackcity
			});
		}
	 function ajaxSendCallBackcity(data) {
			//如果是jsonArray这样返回
			//alert(data[0].name);
			//返回json结果
			/*
					把select中的所有option移除（除了请选择）
			 */

			var citySelect = document.getElementById("maid");
			// 获取其所有子元素
			var optionEleList = citySelect.getElementsByTagName("option");