Estoy con un inconveniente desde hace rato que no logro resolver y es que de un momento a otro el formulario jsp con que trabajo me devuelve al servlet correspondiente nulo.
Aqui pongo el código para que lo vean:
formulario.jsp:
Código:
<%@ page language="java" contentType="text/html"%>
<!doctype html>
<%@page import="recargafacil.Obten"%>
<html lang="es-mx">
<head>
<title>Acceso Clientes</title>
<meta name="author" content="Luis Serrano">
<meta name="generator" content="Desarrollado por Econocell">
<link href="favicon.ico" rel="shortcut icon">
<link href="cupertino/jquery.ui.all.css" rel="stylesheet" type="text/css">
<link href="RecargaFacil.css" rel="stylesheet" type="text/css">
<link href="clientes.css" rel="stylesheet" type="text/css">
<script type="text/javascript" src="jquery-1.9.1.min.js"></script>
<script type="text/javascript" src="jquery.ui.core.min.js"></script>
<script type="text/javascript" src="jquery.ui.widget.min.js"></script>
<script type="text/javascript" src="jquery.ui.button.min.js"></script>
<script type="text/javascript">
$(document).ready(function ()
{
$("#btn_menu").button();
});
</script>
</head>
<body onload="document.getElementById('cliente').focus();
return false;">
<div id="container">
<div id="wb_Image1" style="position:absolute;left:3px;top:0px;width:1360px;height:665px;z-index:3;">
<img src="images/preview2.png" id="Image1" alt="" style="width:1360px;height:665px;"></div>
<div id="wb_frm_cliente" style="position:absolute;left:449px;top:208px;width:467px;height:147px;z-index:4;">
<form name="ACREDITACIONES" method="post" action="Obten" enctype="text/plain" accept-charset="UTF-8" target="_self" id="frm_cliente">
<input type="text" id="txt_cliente" onchange="document.getElementById('envia').focus();
return false;" style="position:absolute;left:148px;top:54px;width:152px;height:37px;line-height:37px;z-index:0;" name="cliente" value="" maxlength="8" tabindex="1" autocomplete="off" required="required" pattern="[0-9-]*$" title="ingrese su código Econocell">
<div style="position:absolute;overflow:hidden;left:26px;top:39px;width:114px;height:70px;z-index:1"><p align="left"><strong><font style="font-size:21px" face="Arial">Código </font></strong><strong><font style="font-size:21px" face="Arial">Econocell:</font></strong> </p></div>
<input type="submit" id="btn_enviar" name="enviar" value="enviar" style="position:absolute;left:322px;top:54px;width:108px;height:41px;z-index:2;" tabindex="3">
</form>
</div>
<input type="button" id="btn_menu" onclick="history.back();
return false;" name="regresar" value="menu principal" style="position:absolute;left:37px;top:73px;width:167px;height:50px;z-index:5;">
</div>
</body>
</html>
el servlet:
Código:
/*
* To change this license header, choose License Headers in Project Properties.
* To change this template file, choose Tools | Templates
* and open the template in the editor.
*/
package recargafacil;
import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
/**
*
* @author Administrador
*/
@WebServlet(name = "Obten", urlPatterns =
{
"/Obten"
})
public class Obten extends HttpServlet
{
/**
* Processes requests for both HTTP <code>GET</code> and <code>POST</code>
* methods.
* <p>
* @param request servlet request
* @param response servlet response
* <p>
* @throws ServletException if a servlet-specific error occurs
* @throws IOException if an I/O error occurs
*/
protected void processRequest(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException
{
response.setContentType("text/html;charset=UTF-8");
try (PrintWriter out = response.getWriter())
{
String nombre = request.getParameter("txt_cliente");
}
}
// <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
/**
* Handles the HTTP <code>GET</code> method.
* <p>
* @param request servlet request
* @param response servlet response
* <p>
* @throws ServletException if a servlet-specific error occurs
* @throws IOException if an I/O error occurs
*/
@Override
protected void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException
{
processRequest(request, response);
}
/**
* Handles the HTTP <code>POST</code> method.
* <p>
* @param request servlet request
* @param response servlet response
* <p>
* @throws ServletException if a servlet-specific error occurs
* @throws IOException if an I/O error occurs
*/
@Override
protected void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException
{
processRequest(request, response);
}
/**
* Returns a short description of the servlet.
* <p>
* @return a String containing servlet description
*/
@Override
public String getServletInfo()
{
return "Short description";
}// </editor-fold>
}
yo no le he cambiado nada...que pueden determinar de este código, gracias por sus comentarios