Servlets - Configurando/Lendo parâmetros

Pessoal,
estou tentando criar um servlet que no método init() leia alguns parâmetros de configuração definidos para esse servlet. Ocorre que sempre que executo um request ao servlet o mesmo não consegue ler os parâmetros definidos no web.xml apresentando a mensagem de erro abaxo:

type Exception report

message 

description The server encountered an internal error () that prevented it from fulfilling this request.

exception 

javax.servlet.ServletException: you must specify the  'database', 'user', 'passwd' init params to -> com.ack.servlets.JDBCTest

Alguma ajuda?

Jakarta Tomcat 4.1.26
Java 1.4.2_08

Segue a classe e o web.xml

package com.ack.servlets;

import java.io.*;
import javax.servlet.*;
import javax.servlet.http.*;
import java.sql.*;

public class JDBCTest extends HttpServlet {

	private static final long serialVersionUID = 6186313746193288185L;

	private Connection fConnection;

	public void init(ServletConfig config) throws ServletException
	  {
	    super.init(config);
	    String jdbcURL    = config.getInitParameter("database");
	    String username   = config.getInitParameter("user");
	    String password   = config.getInitParameter("passwd");
	    UnavailableException uex = null;
	    
	    if( jdbcURL == null )
	    {
	    	System.out.println("JDBC is NULL");
	    }
	    if( username == null )
	    {
	    	System.out.println("USERNAME is NULL");
	    }
	    if( password == null )
	    {
	    	System.out.println("PASSWORD is NULL");
	    }
	    if( jdbcURL == null || username == null || password == null )
	    {
	      StringBuffer buf = new StringBuffer("you must specify the ");
	      buf.append (" 'database', 'user', 'passwd' init params to -> ");
	      buf.append( getClass().getName() );
	      String msg = buf.toString();
	      log( msg );
	      throw new ServletException( msg );
	    }

	    try
	    {
	      // register drivers...
	      fConnection = DriverManager.getConnection(jdbcURL,username,password);
	      // do some work here...
	    }
	    catch( SQLException sqle )
	    {
	      log( sqle.toString() );
	      uex = new UnavailableException  ( sqle.toString(), 15 );
	    }
	    finally
	    {
	      // release connection in the event of problems
	      if( uex != null )
	        try { fConnection.close(); } catch(SQLException e) {}
	    }
	    log( "Completed Servlet Initialisation for: "  + getClass().getName() );
	  }

	public void doGet(HttpServletRequest request, HttpServletResponse response)
		throws ServletException, IOException
	  {
	    response.setContentType("text/html");
	
	    System.out.println("Log-passei aqui");

	    PrintWriter out = response.getWriter();
	    out.println("<html>");
	    out.println("<head><title>Hello World</title></head>");
	    out.println("<body> Hey there people!");
	    out.println("</body></html>");
	    out.close();
	  }
}

<?xml version="1.0" encoding="ISO-8859-1"?>

<!DOCTYPE web-app
    PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
    "http://java.sun.com/j2ee/dtds/web-app_2_3.dtd">

<web-app>

  <servlet>
    <servlet-name>test</servlet-name>
    <servlet-class>com.ack.servlets.JDBCTest</servlet-class>
    <init-param>
      <param-name>database</param-name>
      <param-value>DBase</param-value>
    </init-param>
    <init-param>
      <param-name>user</param-name>
      <param-value>usuario</param-value>
    </init-param>
    <init-param>
      <param-name>passwd</param-name>
      <param-value>Senha</param-value>
    </init-param>
  </servlet>
</web-app>

2 Respostas

Topicos relacionados