Problem with error-handling

[ba...@yahoo.com]

I am using Tomcat5.5, j2sdk1.5

I deliberately created a SQLException to try error
page handling but it does not work and i don't know
why.

I have been trying to solve this problem for hours
with no result. I would appreciate it if someone
offers to look at my war file for me. I'm desperate
please help me.

web.xml
<?xml version="1.0" encoding="ISO-8859-1"?> 
<!DOCTYPE web-app
   PUBLIC "-//Sun Microsystems, Inc.//DTD Web
Application 2.3//EN"
   "http://localhost/dtd/web-app_2_3.dtd">
<web-app>	
	<context-param>
		<param-name>driverClassName</param-name>
		<param-value>com.mysql.jdbc.Driver</param-value>
	</context-param>
	<context-param>
		<param-name>dbUsername</param-name>
		<param-value>user</param-value>
	</context-param>
	<context-param>
		<param-name>dbPassword</param-name>
		<param-value>password</param-value>
	</context-param>
	
	<listener>
		<listener-class>
			MyListener
		</listener-class>
	</listener>
	
	
	<servlet>
		<servlet-name>ErrorServlet</servlet-name> 
	
<servlet-class>chapter04.ErrorServlet</servlet-class>	

	</servlet>
	<servlet>
		<servlet-name>LoginServlet</servlet-name> 
	
<servlet-class>chapter04.LoginServlet</servlet-class>
		<init-param>
			<param-name>dburl</param-name>
		
<param-value>jdbc:mysql://localhost/test</param-value>
		</init-param>
	</servlet>
	
	<servlet-mapping>
		<servlet-name>LoginServlet</servlet-name>
		<url-pattern>/login</url-pattern>
	</servlet-mapping>
	<servlet-mapping>
		<servlet-name>ErrorServlet</servlet-name>
		<url-pattern>/error</url-pattern>
	</servlet-mapping>
	
	<error-page>
		<error-code>403</error-code>
		<location>/html/login.html</location>
	</error-page>
	
	<error-page>
	
<exception-type>java.sql.SQLException</exception-type>
		<location>/error</location>
	</error-page>
		
</web-app>


LoginServlet.java (doPost method)
public void doPost(HttpServletRequest req,
HttpServletResponse res)
			throws IOException, ServletException {
		String userid = req.getParameter("userid");
		String password = req.getParameter("password");
		

		if (userid != null && password != null &&
userid.length() > 0
				&& password.length() > 0) {
			
				ServletConfig config = getServletConfig();
				ServletContext context =
config.getServletContext();
				//context param
				String driverClassName =
context.getInitParameter("driverClassName");
				String dbUsername =
context.getInitParameter("dbUsername");
				String dbPassword =
context.getInitParameter("dbPassword");
				//config param
				String dburl = config.getInitParameter("dburl");
				
				MySqlDAO dao = new MySqlDAO();
				try {
					dao.init(driverClassName, dburl, dbUsername,
dbPassword);
				} catch (ClassNotFoundException e1) {
					// TODO Auto-generated catch block
					e1.printStackTrace();
					throw new
ServletException("ClassNotFoundException", e1);
				} catch (SQLException e1) {
					// TODO Auto-generated catch block
					e1.printStackTrace();
					throw new ServletException("SQLException", e1);
				}
				try {
					if(dao.verifyUser(userid, password)) {				
						context.setAttribute("userid", userid);
						ServletContext ct = getServletContext();
						RequestDispatcher rd = ct
								.getRequestDispatcher("/jsp/welcome.jsp");
						rd.forward(req, res);
					} else {
						res.setStatus(HttpServletResponse.SC_FORBIDDEN);
				
					}
				} catch (SQLException e) {
					// TODO Auto-generated catch block
					e.printStackTrace();
					throw new ServletException("SQLException", e);
				} catch (ServletException e) {
					// TODO Auto-generated catch block
					e.printStackTrace();
				} catch (IOException e) {
					// TODO Auto-generated catch block
					e.printStackTrace();
				}
			
			
		} else {
			res.sendError(HttpServletResponse.SC_FORBIDDEN);
			/*
			RequestDispatcher rd =
req.getRequestDispatcher("html/login.html");
			rd.forward(req, res);
			*/
		}
		return;
	}



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