Erro jsf

23 de dezembro de 2006 4 respostas

mococaPJ 23 de dezembro de 2006

e ai rapaziada, blz…to rodando um exemplo de jsf, e gerou o seguinte erro:

javax.servlet.ServletException&#58; Cannot find FacesContext
	org.apache.jasper.runtime.PageContextImpl.doHandlePageException&#40;PageContextImpl.java&#58;848&#41;
	org.apache.jasper.runtime.PageContextImpl.handlePageException&#40;PageContextImpl.java&#58;781&#41;
	org.apache.jsp.index_jsp._jspService&#40;index_jsp.java&#58;78&#41;
	org.apache.jasper.runtime.HttpJspBase.service&#40;HttpJspBase.java&#58;97&#41;
	javax.servlet.http.HttpServlet.service&#40;HttpServlet.java&#58;802&#41;
	org.apache.jasper.servlet.JspServletWrapper.service&#40;JspServletWrapper.java&#58;322&#41;
	org.apache.jasper.servlet.JspServlet.serviceJspFile&#40;JspServlet.java&#58;291&#41;
	org.apache.jasper.servlet.JspServlet.service&#40;JspServlet.java&#58;241&#41;
	javax.servlet.http.HttpServlet.service&#40;HttpServlet.java&#58;802&#41;
	org.netbeans.modules.web.monitor.server.MonitorFilter.doFilter&#40;MonitorFilter.java&#58;362&#41;

ta acusando q nao ta encontrando FacesContext…eu to usando o netbeans para este exemplo…ele ja vem integrado o jsf…
valeuu

4 Respostas

EdersonPJ 23 de dez. de 2006

isso acontece pq o netbeans mapeia a instancia do FacesServlet para /faces/* vc pode ver isso no web.xml

vc pode fazer um index.jsp que redireciona para /faces/seuJsp.jsp

algo como <html> <head> </head> <body> <jsp:forward page="faces/index2.jsp" /> </body> </html>

vc pode ver um exemplo disso no The Java EE 5 Tutorial: http://java.sun.com/javaee/5/docs/tutorial/doc/JSFIntro4.html#wp114963

embora, sinceramente, não goste dessa solução… se alguém conhecer uma melhor… informe-nos :lol:

mococaPJ 24 de dez. de 2006

blz…fiz o index e redirecionei para a minha pagina principal, que tem dois links que vao chamar a pagina inserir.jsp e buscar.jsp…ta gerando erro quando tento acessar estas paginass…
** a pagina principal é a seguinte:

&lt;%@ taglib uri="http&#58;//java.sun.com/jsf/core" prefix="f" %&gt;
&lt;%@ taglib uri="http&#58;//java.sun.com/jsf/html" prefix="h" %&gt;
&lt;html&gt;
&lt;head&gt;
&lt;title&gt;Exemplo JSF&lt;/title&gt;
&lt;/head&gt;
&lt;body&gt;
&lt;f&#58;view&gt;
&lt;h&#58;form&gt;
&lt;center&gt;
&lt;h1&gt;Agenda&lt;/h1&gt;
&lt;br&gt;
&lt;h3&gt;
    &lt;h&#58;outputLink value="inserir.jsf"&gt;
&lt;f&#58;verbatim&gt;Inserir&lt;/f&#58;verbatim&gt;
&lt;/h&#58;outputLink&gt;
&lt;br&gt;&lt;br&gt;
&lt;h&#58;outputLink value="buscar.jsf"&gt;
&lt;f&#58;verbatim&gt;Buscar&lt;/f&#58;verbatim&gt;
&lt;/h&#58;outputLink&gt;
&lt;/h3&gt;
&lt;/center&gt;
&lt;/h&#58;form&gt;
&lt;/f&#58;view&gt;
&lt;/body&gt;
&lt;/html&gt;

** o arquivo faces-config:

&lt;faces-config&gt;
 &lt;navigation-rule&gt;
&lt;from-view-id&gt;/buscar.jsp&lt;/from-view-id&gt;
&lt;navigation-case&gt;
&lt;from-outcome&gt;success&lt;/from-outcome&gt;
&lt;to-view-id&gt;/sucesso_busca.jsp&lt;/to-view-id&gt;
&lt;/navigation-case&gt;
&lt;navigation-case&gt;
&lt;from-outcome&gt;failure&lt;/from-outcome&gt;
&lt;to-view-id&gt;/falha_busca.jsp&lt;/to-view-id&gt;
&lt;/navigation-case&gt;
&lt;/navigation-rule&gt;
&lt;navigation-rule&gt;
&lt;from-view-id&gt;/inserir.jsp&lt;/from-view-id&gt;
&lt;navigation-case&gt;
&lt;from-outcome&gt;success&lt;/from-outcome&gt;
&lt;to-view-id&gt;/sucesso_insercao.jsp&lt;/to-view-id&gt;
&lt;/navigation-case&gt;
&lt;navigation-case&gt;
&lt;from-outcome&gt;failure&lt;/from-outcome&gt;
&lt;to-view-id&gt;/falha_insercao.jsp&lt;/to-view-id&gt;
&lt;/navigation-case&gt;
&lt;/navigation-rule&gt;
&lt;managed-bean&gt;
&lt;managed-bean-name&gt;agenda&lt;/managed-bean-name&gt;
&lt;managed-bean-class&gt;AgendaDB&lt;/managed-bean-class&gt;
&lt;managed-bean-scope&gt;session&lt;/managed-bean-scope&gt;
&lt;/managed-bean&gt;   
  
&lt;/faces-config&gt;

*** arquivo web.xml :

&lt;?xml version="1.0" encoding="UTF-8"?&gt;
 &lt;web-app version="2.4" xmlns="http&#58;//java.sun.com/xml/ns/j2ee" xmlnssi="http&#58;//www.w3.org/2001/XMLSchema-instance" xsi&#58;schemaLocation="http&#58;//java.sun.com/xml/ns/j2ee &lt;a href="http&#58;//java.sun.com/xml/ns/j2ee/web-app_2_4.xsd" target="_blank" rel="nofollow"&gt;http&#58;//java.sun.com/xml/ns/j2ee/web-app_2_4.xsd&lt;/a&gt;"&gt;
     &lt;context-param&gt;
         &lt;param-name&gt;com.sun.faces.verifyObjects&lt;/param-name&gt;
         &lt;param-value&gt;true&lt;/param-value&gt;
     &lt;/context-param&gt;
     &lt;context-param&gt;
         &lt;param-name&gt;com.sun.faces.validateXml&lt;/param-name&gt;
         &lt;param-value&gt;true&lt;/param-value&gt;
     &lt;/context-param&gt;
     &lt;context-param&gt;
         &lt;param-name&gt;javax.faces.CONFIG_FILES&lt;/param-name&gt;
         &lt;param-value&gt;/WEB-INF/faces-config.xml&lt;/param-value&gt;
     &lt;/context-param&gt;
     &lt;servlet&gt;
         &lt;servlet-name&gt;Faces Servlet&lt;/servlet-name&gt;
         &lt;servlet-class&gt;javax.faces.webapp.FacesServlet&lt;/servlet-class&gt;
         &lt;load-on-startup&gt;1&lt;/load-on-startup&gt;
         &lt;/servlet&gt;
     &lt;servlet-mapping&gt;
         &lt;servlet-name&gt;Faces Servlet&lt;/servlet-name&gt;
         &lt;url-pattern&gt;/faces/*&lt;/url-pattern&gt;
     &lt;/servlet-mapping&gt;
     &lt;session-config&gt;&lt;session-timeout&gt;
             30
         &lt;/session-timeout&gt;&lt;/session-config&gt;&lt;welcome-file-list&gt;&lt;welcome-file&gt;
             index.jsp
         &lt;/welcome-file&gt;&lt;/welcome-file-list&gt;&lt;/web-app&gt;

*** o erro gerado:

HTTP Status 404 - /exemplo-jsf/inserir.jsf

type Status report

message /exemplo-jsf/inserir.jsf

description The requested resource &#40;/exemplo-jsf/inserir.jsf&#41; is not available.
Apache Tomcat/5.5.9

***** valeu

marcossousaPJ 26 de dez. de 2006

bom,

você está mapeando para usar uma url como:

localhost:8080/suaApp/faces/diretorio/index.jsp

mas está usando como:

localhost:8080/suaApp/diretorio/index.jsf

Aconselho antes de começar com JSF passar um pouco sobre Servlets…

:joia:

lllBlacklllPJ 16 de abr. de 2008

Use:

&lt;servlet-mapping&gt;
    &lt;servlet-name&gt;Faces Servlet&lt;/servlet-name&gt;
    &lt;url-pattern&gt;*.jsf&lt;/url-pattern&gt;
&lt;/servlet-mapping&gt;

Ao invés de

&lt;servlet-mapping&gt;
    &lt;servlet-name&gt;Faces Servlet&lt;/servlet-name&gt;
    &lt;url-pattern&gt;/faces/*&lt;/url-pattern&gt;
&lt;/servlet-mapping&gt;

Criado 23 de dezembro de 2006

Ultima resposta 16 de abr. de 2008

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