11.9-526互联

今日学习内容

<%@ page import="java.sql.*" %>
<%@ page import="java.sql.DriverManager" %><%--
Created by IntelliJ IDEA.
To change this template use File | Settings | File Templates.
--%>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
<title>Title</title>
</head>
<body>
<%
int cid= Integer.parseInt(request.getParameter("cid"));
int tid= Integer.parseInt(request.getParameter("tid"));
String name=request.getParameter("name");
String t_name=request.getParameter("t_name");
String cishu=request.getParameter("cishu");
String renshu=request.getParameter("renshu");
String time=request.getParameter("time");
String college=request.getParameter("college");

try {
Class.forName("com.mysql.cj.jdbc.Driver");
} catch (ClassNotFoundException e) {
throw new RuntimeException(e);
}
request.setCharacterEncoding("utf-8");
Connection conn = null;
conn = DriverManager.getConnection("jdbc:mysql://localhost:3306/2017xuanke", "root", "123456");
Statement stat = null;
stat = conn.createStatement();
String sql = "UPDATE course set name = ('"+name+"'),time=('"+time+"'),cishu=('"+cishu+"'),college=('"+college+"'),tid=('"+tid+"') ,t_name=('"+t_name+"'),renshu=('"+renshu+"') where cid= ('"+cid+"') " ;
stat.executeUpdate(sql);
out.println("修改成功");
stat.close();
conn.close();
%>
</body>
</html>

11.9

11.9 11