Deliberate? Was this a test?
-----Original Message-----
From: A mailing list for discussion about Sun Microsystem's Java Servlet
API Technology. [mailto:[EMAIL PROTECTED]]On Behalf Of Sam
Rose
Sent: Wednesday, April 14, 1999 11:27 AM
To: [EMAIL PROTECTED]
Subject: Re: code not working.
Thanks to everyone who spotted my deliberate mistake,
Ahem, I must keep my eyes open in the future.
-----Original Message-----
From: Sam Rose
Sent: Wednesday, April 14, 1999 11:11 AM
To: [EMAIL PROTECTED]
Subject: code not working.
'Based upon the code in Jason Hunters book'.
I'm not sure why this isn't working, the error that brings up when
running the servlet (compiles fine) is,
400 post is not supported by this url 69.
Would it be something to do with the fact that I'm redirecting to
another servlet?
import java.io.*;
import java.util.*;
import java.sql.*;
import javax.servlet.*;
import javax.servlet.http.*;
/*
A servlet to login the users.
Redirects to a protected page, if it is accessed before
logging in.
Available to all DBowner types.
*/
public class login extends HttpServlet {
public void init(ServletConfig config) throws ServletException
{
super.init(config);
try {
Class.forName(
"oracle.jdbc.driver.OracleDriver" );
}
catch (java.lang.ClassNotFoundException e) {
throw new UnavailableException(this, "Couldn't
load Oracle
Driver");
}
}
public void dopost (HttpServletRequest req,
HttpServletResponse res)
throws ServletException, IOException {
res.setContentType("text/html");
PrintWriter os=res.getWriter();
//Gets the parameters
String user= req.getParameter("User");
String passwd=req.getParameter("Password");
//Sets up the connection, statement, and resultsets
String url = "jdbc:oracle:thin:@computer:1521:orcl";
Connection con=null;
Statement stmt=null;
ResultSet Downer=null;
String DBowner = (("Select ROLE from sam.DBOWNERS WHERE
USERNAME =
'") + user + ("'"));
try {
con = DriverManager.getConnection( url, user,
passwd );
stmt = con.createStatement();
//valid login
HttpSession session=req.getSession(true);
Downer = stmt.executeQuery(DBowner);
String DBownertype=null;
while (Downer.next()) {
DBownertype =
Downer.getString("ROLE");
}
session.putValue("logon.isDone", user); //
just a marker object
session.putValue("login.user", user);
session.putValue("login.password", passwd);
session.putValue("login.DBownertype",
DBownertype);
// Try redirecting the client to the page he first
tried to access
try {
String target = (String)
session.getValue("login.target");
if (target != null)
res.sendRedirect(target);
return;
}
catch (Exception ignored) { }
// Couldn't redirect to the target. Redirect to the
site's home
page.
String dblogin =
("HTTP://tb187.info.bt.co.uk/vdb/dblogin");
res.sendRedirect(dblogin);
}
catch(SQLException ex) {
//invalid login
os.println("<HTML><HEAD><TITLE>Access
Denied</TITLE></HEAD>");
os.println("<BODY>Your login and password are
invalid.<BR>");
os.println("You may want to <A
HREF=\"/login.html\">try
again</A>");
os.println("</BODY></HTML>");
}
finally {
try {
if (con != null) con.close();
if (stmt != null) stmt.close();
if (Downer !=null) Downer.close();
}
catch (SQLException ignored) {}
}
os.flush();
}
public void destroy() {
super.destroy();
}
}
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