update_selection.jsp

来自「它主要应用于教育系统」· JSP 代码 · 共 47 行

JSP
47
字号

<%@ page language="java" import="java.sql.*" pageEncoding="UTF-8"%>
<%
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 'update_selection.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>
    <%
    int i=0;
    String user_id=request.getParameter("user_id");
    String checkbox_name[]={"1","2","3","4","5","6","7","8"};
    String sql="insert into selection(s_id,c_id) values(?,?)";
    Connection con=test1.getConnection();
     for(i=0;i<8;i++)
    {
    
    if(request.getParameter(checkbox_name[i])!=null)
    {PreparedStatement ps=con.prepareStatement(sql);
    ps.setString(1,user_id);
    ps.setString(2,request.getParameter(checkbox_name[i]));
   ps.executeUpdate();
   out.print("插入成功.");}
    }
    con.close();
    %>
  </body>
</html>

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