📄 login_action.jsp
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<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<%@ include file="inc.jsp"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<base href="<%=basePath%>">
<title>My JSP 'login_action.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>
<body>
<%
String username=request.getParameter("username");
String password=request.getParameter("password");
if(username==null||password==null){
response.sendRedirect("login.jsp");
}
boolean isValid=false;
String sql="select * from user where username='"+username+"'and password='"+password+"'";
try{
Class.forName(drv).newInstance();
Connection conn=DriverManager.getConnection(url,usr,pwd);
Statement stm=conn.createStatement();
ResultSet rs=stm.executeQuery(sql);
ResultSetMetaData rsmd=rs.getMetaData();
int cols =rsmd.getColumnCount();
while(rs.next()){
for(int i=1;i<=cols;i++){
String field=(String)(rsmd.getColumnName(i));
String value=(String)(rs.getString(i));
out.print(field+"="+value+";");
}
}
rs.close();
stm.close();
conn.close();
}catch(Exception e){
e.printStackTrace();
out.println(e);
}
%>
</body>
</html>
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