selectcourse.jsp

来自「jsp的课程实践」· JSP 代码 · 共 94 行

JSP
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<%@ page language="java" import="java.util.*,course.beans.*" contentType="text/html;charset=gbk"%>
<%
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>
    <base href="<%=basePath%>">
    
    <title>My JSP 'selectCourse.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">
	<!--
	<link rel="stylesheet" type="text/css" href="styles.css">
	-->
    <script language="javaScript">
  function check(form)
  {
  	//所填的信息全部为空时
  	if((form.courseId.value==null||form.courseId.value=="")&&
  	(form.courseName.value==null||form.courseName.value=="")&&
  	(form.teacher.value==null||form.teacher.value=="")&&
  	(form.courseDes.value==null||form.courseDes.value=="")&&
  	(form.credit.value==null||form.credit.value==""))
  	{
  		alert('请您至少输入一项所要查询的信息条目!');
  		return false;
  	}
  	else
  	{
  		return true;
  	}
  }
  
  </script>
  </head>
  <body>
   <%
    if(session.getAttribute("student")!=null)
    {
   %>
  <div align="center">
  <form action="/StudentCourse/FindCourseServlet" method="post" onsubmit="return check(this);">
  模糊查找所需要的课程信息<br><br>
  课程代号:<input type="text" name="courseId"> &nbsp;&nbsp;&nbsp;
  课程名称:<input type="text" name="courseName"><br><br>
  任课教师:<input type="text" name="teacher">&nbsp;&nbsp;&nbsp;
  课程描述:<input type="text" name="courseDes"><br><br>
  学分:<input type="text" name="credit"><br><br>
  <input type="submit" value="查找">&nbsp;&nbsp;&nbsp;
  <input type="reset" value="重置">
  </form>
  <h3>显示所有课程信息</h3>
  <table border="1">
  <tr bgColor=#e6e6e6><td align="center">课程代号</td><td align="center">课程名称</td>
  <td align="center">任课教师</td><td align="center">课程描述</td>
  <td align="center">课程学分</td><td align="center">选择该课程</td></tr>
  <%
    	
    	String str = "";
    	ArrayList<Course>courses=(ArrayList<Course>)request.getAttribute("courses");
    	for(int i=0;i<courses.size();i++)
    	{
    		str = "";
    		str += "<tr><td align = 'center'>"+courses.get(i).getCourseId()+"</td>";
    		str += "<td align = 'center'>"+courses.get(i).getCourseName()+"</td>";
    		str += "<td align = 'center'>"+courses.get(i).getTeacher()+"</td>";
    		str += "<td align = 'center'>"+courses.get(i).getCourseDes()+"</td>";
    		str += "<td align = 'center'>"+courses.get(i).getCredit()+"</td>";
    		str += "<td align = 'center'><a href='/StudentCourse/SelectCourseServlet?courseId="+courses.get(i).getCourseId()+"'>选课</a></td></tr>";
    		out.println(str);
    	} 
    	
  %>
  </table>
  <% 
    }
    else
    {
    %>
    <h3>您还没有进行登录,请先进行<a href='login.jsp' target='contentFrame'>登陆</a></h3>
   <%
    }
   %>
   </div>
  </body>
</html>

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