📄 undochoosecourse.jsp
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<%@page contentType="text/html; charset=gb2312" errorPage=""%>
<%@page import="java.sql.*,sms.db.*,sms.bean.*,java.util.*"%>
<%!
private String isSelected(String value1, String value2) {
if (value1 != null && value2 != null && value1.equals(value2)){
return "selected";
}
else{
return "";
}
}
%>
<%
String UndoFlag = request.getParameter("UndoButton");
String queryFlag = request.getParameter("queryButton");
String term = null;
String classId = null;
String studentId = null;
StudentBean stuBean = null;
ArrayList courseList = null;
stuBean = (StudentBean) session.getAttribute("studentBean");
if (stuBean != null) {//如果学生已经登录系统
studentId = stuBean.getStudentId();
CourseBean courseBean = new CourseBean();
if (queryFlag != null) {//如果是页面提交了查询按钮，则根据页面提交的学期来查询
term = request.getParameter("term");
}else{//如果是首次进入该页面，根据学生的当前学期查询
term = String.valueOf(stuBean.getCurrentTerm());
}
courseList = courseBean.queryChoosedCourse(term, studentId);
if (UndoFlag != null ) {//页面提交了退选按钮
String courseId = request.getParameter("selectCourseId");
if (courseId == null || courseId.equals("")) {
%>
<script language="javascript" type="">
alert('请选择一条记录！');
</script>
<%
} else {
CourseSchemeBean cSchemeBean = new CourseSchemeBean();
boolean flag = cSchemeBean.undoChooseCourse(studentId, courseId);
if (flag == true) {
%>
<script language="javascript" type="">
alert('退选课程成功！');
</script>
<%} else {%>
<script language="javascript" type="">
alert('退选课程失败！');
</script>
<%
}
}
}
}else{//如果学生还未登录系统，转发到登录页面
%>
<jsp:forward page="login.jsp"></jsp:forward>
<%
}
%>
<html>
<head>
<title>退选课程</title>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<style type="text/css">
<!--
body {
background-color: #CCCCCC;
}
body,td,th {
color: #000000;
}
-->
</style>
<link href="css/style.css" rel="stylesheet" type="text/css">
</head>
<body>
<form name="form1" method="post" action="undoChooseCourse.jsp">
<input type="hidden" name="commitFlag" value="">
<table width="100%" border="0">
<tr>
<td height="25">
<table width="100%" border="0">
<tr bgcolor="#999999">
<td width="32%" align="right"> 第
<select name="term">
<option id="1" value="1" <%=isSelected(term,"1")%>>1</option>
<option id="2" value="2" <%=isSelected(term,"2")%>>2</option>
<option id="3" value="3" <%=isSelected(term,"3")%>>3</option>
<option id="4" value="4" <%=isSelected(term,"4")%>>4</option>
<option id="5" value="5" <%=isSelected(term,"5")%>>5</option>
<option id="6" value="6" <%=isSelected(term,"6")%>>6</option>
<option id="7" value="7" <%=isSelected(term,"7")%>>7</option>
<option id="8" value="8" <%=isSelected(term,"8")%>>8</option>
</select>
学期
</td>
<td width="36%"> </td>
<td width="32%">
<input name="queryButton" type="submit" value="查询">
</td>
</tr>
</table>
</td>
</tr>
<tr>
<td valign="top">
<%
if (courseList != null && courseList.size() > 0) {
CourseBean courseBean2 = null;
%>
<table width="100%" border="1" bordercolorlight= #C1A4F4 borderColorDark=#ffffff cellPadding=0 cellSpacing=0 >
<tr>
<th scope="col" height="25">选择</th>
<th scope="col">课程号</th>
<th scope="col">课程名</th>
<th scope="col">类型</th>
<th scope="col">教师</th>
<th scope="col">上课时间</th>
<th scope="col">教室</th>
<th scope="col">课程描述</th>
</tr>
<%
System.out.println("courseList.size:" + courseList.size()); //////////////////////////////
CourseBean courseBean3 = null;
Iterator it = courseList.iterator();
String temp = "";
while (it.hasNext()) {
courseBean3 = (CourseBean) it.next();
temp = String.valueOf(courseBean3.getBeginTime()) + "－" + String.valueOf(courseBean3.getEndTime()) + "周，";
%>
<tr>
<td align="center">
<input name="selectCourseId" type="radio" value="<%=courseBean3.getCourseId()%>">
</td>
<td align="center"><%=courseBean3.getCourseId()%> </td>
<td align="center"><%=courseBean3.getCourseName()%> </td>
<td align="center"><%=courseBean3.getCourseType()%> </td>
<td align="center"><%=courseBean3.getTeacherName()%> </td>
<td align="center"><%=temp%> </td>
<td align="center"><%=courseBean3.getClassRoom()%> </td>
<td align="center"><%=courseBean3.getDescription()%> </td>
</tr>
<%}%>
</table>
<%} %>
</td>
</tr>
<tr>
<td height="35">
<input type="submit" name="UndoButton" value="退选">
</td>
</tr>
</table>
</form>
</body>
</html>
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