📄 class_add_db.jsp
字号:
<%@ page language="java" import="java.sql.*" contentType="text/html;charset=gb2312"%>
<%
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 'class_add_db.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">
-->
</head>
<jsp:useBean id="test1" scope="application" class="test.Connect_db"/>
<body>
<%
String major=request.getParameter("major");
String new_major=new String(major.getBytes("ISO-8859-1"),"gb2312");
String semester_id=request.getParameter("semester_id");
String cname=request.getParameter("cname");
String new_cname=new String(cname.getBytes("ISO-8859-1"),"gb2312");
Connection con=test1.getConnection();
String sql="select c_id from course where cname=?";
PreparedStatement ps=con.prepareStatement(sql);
ps.setString(1,new_cname);
ResultSet rs=ps.executeQuery();
rs.next();
String c_id=rs.getString(1);
String sql1="insert into course_arrangement(major,semester_id,c_id) values(?,?,?)";
PreparedStatement ps1=con.prepareStatement(sql1);
ps1.setString(1,new_major);
ps1.setString(2,semester_id);
ps1.setString(3,c_id);
ps1.executeUpdate();
out.print("插入成功．");
%>
</body>
</html>
⌨️ 快捷键说明
复制代码
Ctrl + C
搜索代码
Ctrl + F
全屏模式
F11
切换主题
Ctrl + Shift + D
显示快捷键
?
增大字号
Ctrl + =
减小字号
Ctrl + -