Boa Tarde galera, estou com um probleminha e não consigo resolver…
Seguindo a apostila fj-21 fiz o exercicio de conexao com o banco e as classes pra adicionar o contato no banco, e funcionou perfeitamente mas quando eu joguei essas classes para o “Dynamic Web Project” ele da o erro:
Obs: VO COLOCAR O ERRO EM CODIGO PRA MELHOR VISUALIZAÇÃO !!
[code]HTTP Status 500 -
type Exception report
message
description The server encountered an internal error that prevented it from fulfilling this request.
exception
java.lang.NullPointerException
br.com.wacontactcenter.jdbc.dao.ContatoDAO.adiciona(ContatoDAO.java:25)
br.com.wacontactcenter.servlet.AdicionaContatoServlet.service(AdicionaContatoServlet.java:31)
javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
note The full stack trace of the root cause is available in the Apache Tomcat/7.0.32 logs.[/code]
O estranho e que no outro projeto web todas as classes funcionam perfeitamente;
O xml está dessa forma:
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns="http://java.sun.com/xml/ns/javaee"
xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee
http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
id="WebApp_ID" version="2.5">
<display-name>IntranetWA</display-name>
<welcome-file-list>
<welcome-file>index.html</welcome-file>
<welcome-file>index.htm</welcome-file>
<welcome-file>index.jsp</welcome-file>
<welcome-file>default.html</welcome-file>
<welcome-file>default.htm</welcome-file>
<welcome-file>default.jsp</welcome-file>
</welcome-file-list>
<servlet>
<servlet-name>servletOiMundo</servlet-name>
<servlet-class>br.com.wacontactcenter.servlet.OiMundo</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>servletOiMundo</servlet-name>
<url-pattern>/oi</url-pattern>
</servlet-mapping>
<error-page>
<error-code>404</error-code>
<location>/404.html</location>
</error-page>
<servlet>
<servlet-name>AdicionaContato</servlet-name>
<servlet-class>
br.com.wacontactcenter.servlet.AdicionaContatoServlet
</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>AdicionaContato</servlet-name>
<url-pattern>/adicionaContato</url-pattern>
</servlet-mapping>
</web-app>
Meu servlet para adicionar esta da seguinte maneira:
[code]package br.com.wacontactcenter.servlet;
import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import br.com.wacontactcenter.jdbc.dao.ContatoDAO;
import br.com.wacontactcenter.jdbc.modelo.Contato;
public class AdicionaContatoServlet extends HttpServlet {
protected void service(HttpServletRequest request,
HttpServletResponse response) throws IOException, ServletException {
PrintWriter out = response.getWriter();
String nome = request.getParameter("nome");
String departamento = request.getParameter("departamento");
Contato contato = new Contato();
contato.setNome(nome);
contato.setDepartamento(departamento);
ContatoDAO dao = new ContatoDAO();
dao.adiciona(contato);
out.println("<html>");
out.println("<body>");
out.println("Contato " + contato.getNome() + " Funcionario Adicionado");
out.println("</body>");
out.println("</html>");
}
}[/code]
Ainda não consegui ver aonde esta meu problema, se puderem me ajudar agradeço muito !!