Santiago Tim�n

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since Aug 09, 2006
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Recent posts by Santiago Tim�n

Hi!

I'm getting a problem in one of my jsp pages. I'm designing a virtual shop for a college signature and whenI try to show a product information tomcat crashes in an internal exception.
The code and stacktrace:

The JSP:

<%@ page language="java" pageEncoding="UTF-8"%>

<%@ taglib uri="http://jakarta.apache.org/struts/tags-bean" prefix="bean" %>
<%@ taglib uri="http://jakarta.apache.org/struts/tags-html" prefix="html" %>
<%@ taglib uri="http://jakarta.apache.org/struts/tags-logic" prefix="logic" %>
<%@ taglib uri="http://jakarta.apache.org/struts/tags-tiles" prefix="tiles" %>
<%@ taglib uri="http://jakarta.apache.org/struts/tags-template" prefix="template" %>
<%@ taglib uri="http://jakarta.apache.org/struts/tags-nested" prefix="nested" %>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html:html locale="true">
<head>
<html:base />

<title>mostrarResultado.jsp</title>


</head>

<body>  <br>Resultado de la Busqueda<HR>
Criterio de la Busqueda:
<bean:write name="consultarCatalogoForm" property="criterioBusqueda"/><BR>
<!-- here I show the products contained in ArrayList listaProductos from DynaActionForm "consultarCatalogoForm" which fits the search criteria -->
<logic:iterate name="consultarCatalogoForm" property="listaProductos" id="product">
<td>
<TABLE border="1" width="200px">
<TR>


<html:form action="/detalles">
<td width="250px"><bean:write name="producto" property="productoId" />
<td width="50%" bgcolor="#ff0000" rowspan="100"><bean:write name="producto" property="categoriaId"/>
<td><bean:write name="producto" property="nombre"/>
<td><bean:write name="producto" property="detalleMayor"/>
<td><html:submit>

<!-- what I'm trying is to save the selected product into the DynaActionForm bean "detallesForm" but it doesn't work -->
<jsp:setProperty name="detallesForm"
property="producto"
param="producto" />



</html:submit>
</html:form>
</TR>
</TABLE>
</logic:iterate>
</body>
</html:html>

The Form-beans:

<form-bean name="consultarCatalogoForm" type="org.apache.struts.action.DynaActionForm">

<form-property name="criterioBusqueda" type="java.lang.String"></form-property>

<form-property name="listaProductos" type="java.util.ArrayList"></form-property>

</form-bean>
<form-bean name="detallesForm" type="org.apache.struts.action.DynaActionForm">

<form-property name="producto" type="com.santi.action.Producto"/>

</form-bean>

The StackTraces From Struts:

javax.servlet.ServletException: Exception creating bean of class org.apache.struts.action.DynaActionForm: {1}
org.apache.jasper.runtime.PageContextImpl.doHandlePageException(PageContextImpl.java:825)
org.apache.jasper.runtime.PageContextImpl.handlePageException(PageContextImpl.java:758)
org.apache.jsp.mostrarResultado_jsp._jspService(mostrarResultado_jsp.java:168)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:94)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:324)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:292)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:236)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
org.apache.struts.action.RequestProcessor.doForward(RequestProcessor.java:1069)
org.apache.struts.action.RequestProcessor.processForwardConfig(RequestProcessor.java:455)
org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:279)
org.apache.struts.action.ActionServlet.process(ActionServlet.java:1482)
org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:525)
javax.servlet.http.HttpServlet.service(HttpServlet.java:709)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)

causa ra�z

javax.servlet.jsp.JspException: Exception creating bean of class org.apache.struts.action.DynaActionForm: {1}
org.apache.struts.taglib.html.FormTag.initFormBean(FormTag.java:563)
org.apache.struts.taglib.html.FormTag.doStartTag(FormTag.java:520)
org.apache.jsp.mostrarResultado_jsp._jspx_meth_html_form_0(mostrarResultado_jsp.java:217)
org.apache.jsp.mostrarResultado_jsp._jspService(mostrarResultado_jsp.java:134)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:94)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:324)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:292)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:236)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
org.apache.struts.action.RequestProcessor.doForward(RequestProcessor.java:1069)
org.apache.struts.action.RequestProcessor.processForwardConfig(RequestProcessor.java:455)
org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:279)
org.apache.struts.action.ActionServlet.process(ActionServlet.java:1482)
org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:525)
javax.servlet.http.HttpServlet.service(HttpServlet.java:709)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)

The StackTraces From MyEclipse console:

09-ago-2006 11:24:09 org.apache.struts.util.RequestUtils createActionForm
GRAVE: Error creating form bean of class org.apache.struts.action.DynaActionForm
java.lang.NullPointerException: The type for property producto is invalid
at org.apache.struts.action.DynaActionForm.set(DynaActionForm.java:414)
at org.apache.struts.action.DynaActionFormClass.newInstance(DynaActionFormClass.java:243)
at org.apache.struts.util.RequestUtils.createActionForm(RequestUtils.java:821)
at org.apache.struts.taglib.html.FormTag.initFormBean(FormTag.java:552)
at org.apache.struts.taglib.html.FormTag.doStartTag(FormTag.java:520)
at org.apache.jsp.mostrarResultado_jsp._jspx_meth_html_form_0(mostrarResultado_jsp.java:217)
at org.apache.jsp.mostrarResultado_jsp._jspService(mostrarResultado_jsp.java:134)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:94)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:324)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:292)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:236)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:237)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:157)
at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:704)
at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:474)
at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:409)
at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:312)
at org.apache.struts.action.RequestProcessor.doForward(RequestProcessor.java:1069)
at org.apache.struts.action.RequestProcessor.processForwardConfig(RequestProcessor.java:455)
at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:279)
at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1482)
at org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:525)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:709)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:237)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:157)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:214)
at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:104)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:520)
at org.apache.catalina.core.StandardContextValve.invokeInternal(StandardContextValve.java:198)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:152)
at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:104)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:520)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:137)
at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:104)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:118)
at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:102)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:520)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:104)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:520)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:929)
at org.apache.coyote.tomcat5.CoyoteAdapter.service(CoyoteAdapter.java:160)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:799)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:705)
at org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:577)
at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:683)
at java.lang.Thread.run(Thread.java:595)


I think it's all. If you need anything else just say it.

Thanks for your time!!!
17 years ago